Author: "Grossart, H-P" - Searchworks@Jio Institute Digital Library Search Results

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268 results on '"Grossart, H-P"'

1. Size, shape, and elemental composition as predictors of microplastic surface erosion

Author: Taghizadeh Rahmat Abadi, Z., Abtahi, B., Fathi, M.B., Mashhadi, N., and Grossart, H.-P.
Published: 2024
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2. Long-term stability of the genome structure of the cyanobacterium, Dolichospermum in a deep German lake

Author: Woodhouse, J.N., Burford, M.A., Neilan, B.A., Jex, A., Tichkule, S., Sivonen, K., Fewer, D.P., Grossart, H-P, and Willis, A.
Published: 2024
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3. 10 Must Knows from Biodiversity Science 2024

Author: Thonicke, K., Rahner, E., Arneth, A., Bonn, Aletta, Borchard, N., Chaudhary, A., Darbi, Marianne, Dutta, T., Eberle, U., Eisenhauer, N., Farwig, N., Flocco, C.G., Freitag, J., Grobe, P., Grosch, R., Grossart, H.-P., Grosse, A., Grützmacher, K., Hagemann, Nina, Hansjürgens, Bernd, Hartman Scholz, A., Hassenrück, C., Häuser, C., Hickler, T., Hölker, F., Jacob, U., Jähnig, S.C., Jürgens, K., Kramer-Schadt, S., Kretsch, C., Krug, C., Lakner, S., Lindner, J.P., Loft, L., Mann, C., Matzdorf, B., Mehring, M., Meier, R., Meusemann, K., Müller, D., Nieberg, M., Overmann, J., Peters, R.S., Pörtner, L., Pradhan, P., Prochnow, A., Rduch, V., Reyer, C., Roos, C., Scherber, C., Scheunemann, N., Schroer, S., Schuck, A., Sioen, G.B., Sommer, S., Sommerwerk, N., Tanneberger, F., Tockner, K., van der Voort, H., Veenstra, T., Verburg, P., Voss, M., Warner, B., Wende, W., Wesche, K., Thonicke, K., Rahner, E., Arneth, A., Bonn, Aletta, Borchard, N., Chaudhary, A., Darbi, Marianne, Dutta, T., Eberle, U., Eisenhauer, N., Farwig, N., Flocco, C.G., Freitag, J., Grobe, P., Grosch, R., Grossart, H.-P., Grosse, A., Grützmacher, K., Hagemann, Nina, Hansjürgens, Bernd, Hartman Scholz, A., Hassenrück, C., Häuser, C., Hickler, T., Hölker, F., Jacob, U., Jähnig, S.C., Jürgens, K., Kramer-Schadt, S., Kretsch, C., Krug, C., Lakner, S., Lindner, J.P., Loft, L., Mann, C., Matzdorf, B., Mehring, M., Meier, R., Meusemann, K., Müller, D., Nieberg, M., Overmann, J., Peters, R.S., Pörtner, L., Pradhan, P., Prochnow, A., Rduch, V., Reyer, C., Roos, C., Scherber, C., Scheunemann, N., Schroer, S., Schuck, A., Sioen, G.B., Sommer, S., Sommerwerk, N., Tanneberger, F., Tockner, K., van der Voort, H., Veenstra, T., Verburg, P., Voss, M., Warner, B., Wende, W., and Wesche, K.
Abstract: "There are no scientifically justified obstacles to protecting biodiversity in all its beauty and diversity. There are only six years left to achieve the biodiversity targets by 2030. We must work together now to get there in time."In the 10 Must Knows from Biodiversity Science 2024, 64 scientists have further developed their well-founded and diverse findings and recommendations from the 10MustKnows22. The content of the ten selected key areas of the Earth-human system is supplemented by relevant publications from 2022 and 2023 and linked to the 23 global goals of the Kunming-Montreal Global Biodiversity Framework (GBF) adopted in December 2022. The authors are aware that the next six years until 2030 are essential for achieving an ecologically sustainable and socially just life on our planet in the medium and long term. With the 10MustKnows24, they want to actively contribute to accelerating the socio-ecological transformation by providing scientifically sound recommendations for politics and society.These are the 10MustKnows24: 1: Achieving climate and biodiversity protection together 2: Enabling a healthy life on a healthy planet 3: Considering undiscovered biodiversity 4: Linking linguistic, cultural and biological diversity 5: Harmonising the diverse use of forest ecosystems and biodiversity conservation 6: Transforming agricultural and food systems 7: Protecting land and resources 8: Releasing transformative change through international collaboration and Education for Sustainable Development 9: Ensuring free access and open use of biodiversity-related data 10: Reducing biodiversity impacts from food consumption
Published: 2024

4. 10 Must Knows aus der Biodiversitätsforschung 2024

Author: Thonicke, K., Rahner, E., Arneth, A., Bonn, Aletta, Borchard, N., Chaudhary, A., Darbi, Marianne, Dutta, T., Eberle, U., Eisenhauer, N., Farwig, N., Flocco, C.G., Freitag, J., Grobe, P., Grosch, R., Grossart, H.-P., Grosse, A., Grützmacher, K., Hagemann, Nina, Hansjürgens, Bernd, Hartman Scholz, A., Hassenrück, C., Häuser, C., Hickler, T., Hölker, F., Jacob, U., Jähnig, S.C., Jürgens, K., Kramer-Schadt, S., Kretsch, C., Krug, C., Lakner, S., Lindner, J.P., Loft, L., Mann, C., Matzdorf, B., Mehring, M., Meier, R., Meusemann, K., Müller, D., Nieberg, M., Overmann, J., Peters, R.S., Pörtner, L., Pradhan, P., Prochnow, A., Rduch, V., Reyer, C., Roos, C., Scherber, C., Scheunemann, N., Schroer, S., Schuck, A., Sioen, G.B., Sommer, S., Sommerwerk, N., Tanneberger, F., Tockner, K., van der Voort, H., Veenstra, T., Verburg, P., Voss, M., Warner, B., Wende, W., Wesche, K., Thonicke, K., Rahner, E., Arneth, A., Bonn, Aletta, Borchard, N., Chaudhary, A., Darbi, Marianne, Dutta, T., Eberle, U., Eisenhauer, N., Farwig, N., Flocco, C.G., Freitag, J., Grobe, P., Grosch, R., Grossart, H.-P., Grosse, A., Grützmacher, K., Hagemann, Nina, Hansjürgens, Bernd, Hartman Scholz, A., Hassenrück, C., Häuser, C., Hickler, T., Hölker, F., Jacob, U., Jähnig, S.C., Jürgens, K., Kramer-Schadt, S., Kretsch, C., Krug, C., Lakner, S., Lindner, J.P., Loft, L., Mann, C., Matzdorf, B., Mehring, M., Meier, R., Meusemann, K., Müller, D., Nieberg, M., Overmann, J., Peters, R.S., Pörtner, L., Pradhan, P., Prochnow, A., Rduch, V., Reyer, C., Roos, C., Scherber, C., Scheunemann, N., Schroer, S., Schuck, A., Sioen, G.B., Sommer, S., Sommerwerk, N., Tanneberger, F., Tockner, K., van der Voort, H., Veenstra, T., Verburg, P., Voss, M., Warner, B., Wende, W., and Wesche, K.
Abstract: "Es gibt wissenschaftlich keine begründeten Hindernisse, die Biodiversität in ihrer Schönheit und Vielfalt zu schützen. Es bleiben nur noch sechs Jahre, um die Biodiversitätsziele bis 2030 zu erreichen. Dafür müssen wir jetzt gemeinsam anpacken."In den 10 Must-Knows aus der Biodiversitätsforschung 2024 haben 64 Wissenschaftlerinnen und Wissenschaftler ihre fundierten und vielseitigen Erkenntnisse und Empfehlungen aus den 10MustKnows22 weiterentwickelt. Die zehn ausgewählten Schlüsselbereiche des Erde-Mensch-Systems werden inhaltlich durch relevante Publikationen von 2022 und 2023 ergänzt und mit den im Dezember 2022 verabschiedeten 23 globalen Zielen des Kunming-Montreal Global Biodiversity Framework (GBF) verknüpft. Den Autorinnen und Autoren ist bewusst, dass die kommenden sechs Jahre bis 2030 wesentlich sind, um mittel- und langfristig ein ökologisch nachhaltiges und sozial gerechtes Leben auf unserer Erde zu erreichen. Mit den 10MustKnows24 möchten sie durch wissenschaftlich gesicherte Empfehlungen für Politik und Gesellschaft ihren aktiven Beitrag leisten, um die sozial-ökologische Transformation zu beschleunigen.Das sind die 10MustKnows24: 1. Klima- und Biodiversitätsschutz gemeinsam verwirklichen 2. Ein gesundes Leben auf einem gesunden Planeten ermöglichen 3. Unentdeckte Biodiversität beachten 4. Sprachliche, kulturelle und biologische Vielfalt verknüpfen 5. Vielfältige Nutzung von Waldökosystemen und Biodiversitätsschutz in Einklang bringen 6. Agrar- und Ernährungssysteme transformieren 7. Land und Ressourcen schützen 8. Transformativen Wandel durch internationale Zusammenarbeit und Bildung für nachhaltige Entwicklung bewirken 9. Freien Zugang und offene Nutzung von biodiversitätsbezogenen Daten sicherstellen 10. Auswirkungen des Lebensmittelkonsums auf die Biodiversität verringern
Published: 2024

5. Methanogenic archaea associated to Microcystis sp. in field samples and in culture

Author: Batista, A. M. M., Woodhouse, J. N., Grossart, H.-P., and Giani, A.
Published: 2019
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6. Global CO2 emissions from dry inland waters share common drivers across ecosystems

Author: Keller, P. S., Catalán, N., von Schiller, D., Grossart, H.-P., Koschorreck, M., Obrador, B., Frassl, M. A., Karakaya, N., Barros, N., Howitt, J. A., Mendoza-Lera, C., Pastor, A., Flaim, G., Aben, R., Riis, T., Arce, M. I., Onandia, G., Paranaíba, J. R., Linkhorst, A., del Campo, R., Amado, A. M., Cauvy-Fraunié, S., Brothers, S., Condon, J., Mendonça, R. F., Reverey, F., Rõõm, E.-I., Datry, T., Roland, F., Laas, A., Obertegger, U., Park, J.-H., Wang, H., Kosten, S., Gómez, R., Feijoó, C., Elosegi, A., Sánchez-Montoya, M. M., Finlayson, C. M., Melita, M., Oliveira Junior, E. S., Muniz, C. C., Gómez-Gener, L., Leigh, C., Zhang, Q., and Marcé, R.
Published: 2020
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7. hydrographr: An R package for scalable hydrographic data processing

Author: Schürz, M., Grigoropoulou, A., García Márquez, J., Torres-Cambas, Y., Tomiczek, T., Floury, M., Bremerich, V., Schürz, Christoph, Amatulli, G., Grossart, H.-P., Domisch, S., Schürz, M., Grigoropoulou, A., García Márquez, J., Torres-Cambas, Y., Tomiczek, T., Floury, M., Bremerich, V., Schürz, Christoph, Amatulli, G., Grossart, H.-P., and Domisch, S.
Abstract: Freshwater ecosystems are considered biodiversity hotspots, but assessing the spatial distribution of species remains challenging. One major obstacle lies in the complex geospatial processing of large amounts of data, such as stream network, sub-catchment and basin data, that are necessary for addressing the longitudinal connectivity among water bodies. Workflows thus need to be scalable, especially when working across large spatial extents and at high spatial resolution. This in turn requires advanced command-line GIS skills and programming language integration, which often poses a challenge for freshwater researchers.To address this challenge, we developed the package hydrographr that provides scalable hydrographic data processing in R. The package contains functions for downloading data of the high-resolution Hydrography90m dataset, processing, reading and extracting information, as well as assessing network distances and connectivity. While the functions are, by default, tailored toward the Hydrography90m data, they can also be generalised toward other data and purposes, such as efficient cropping and merging of raster and vector data, point-raster extraction, raster reclassification and data aggregation. The package depends on the open-source software GDAL/OGR, GRASS-GIS and the AWK programming language in the Linux environment, allowing a seamless language integration. Since the data is processed outside R, hydrographr allows creating scalable geo-processing workflows.We illustrate the hydrographr functions using two workflows that focus on (i) a freshwater species distribution modelling approach, and (ii) assessing stream connectivity given the fragmentation by dams. We also provide a detailed guide for the initial installation of the required software. Windows users need to first enable the Windows Subsystem for Linux (WSL) feature, and can then follow the same software installation as Linux users. hydrographr is maintained on GitHub at https://github.com/gl
Published: 2023

8. Global consortium for the classification of fungi and fungus-like taxa

Author: Hyde, K. D., Abdel-Wahab, M. A., Abdollahzadeh, J., Abeywickrama, P. D., Absalan, S., Afshari, N., Ainsworth, A. M., Akulov, O. Y., Aleoshin, V. V., Al-Sadi, A. M., Alvarado, P., Alves, A., Alves-Silva, G., Amalfi, M., Amira, Y., Amuhenage, T. B., Anderson, J. L., Antonín, V., Aouali, S., Aptroot, A., Apurillo, C. C. S., Araújo, J. P.M., Ariyawansa, H. A., Armand, A., Arumugam, E., Asghari, R., Assis, D. M.A., Atienza, V., Avasthi, S., Azevedo, E., Bahkali, A. H., Bakhshi, M., Banihashemi, Z., Bao, D. F., Baral, H. O., Barata, M., Barbosa, F. R., Barbosa, R. N., Barreto, R. W., Baschien, C., Belamesiatseva, D. B., Reuel, M. Bennett, Bera, I., Bezerra, J. D. P., Bezerra, J. L., Bhat, D. J., Bhunjun, C. S., Bianchinotti, M. V., Błaszkowski, J., Blondelle, A., Boekhout, T., Bonito, G., Boonmee, S., Boonyuen, N., Bregant, C., Buchanan, P., Bundhun, D., Burgaud, G., Burgess, T., Buyck, B., Cabarroi-Hernández, M., Cáceres, M. E. S., Caeiro, M. F., Cai, L., Cai, M. F., Calabon, M. S., Calaça, F. J. S., Callalli, M., Camara, M. P. S., Cano-Lira, J. F., Cantillo, T., Cao, B., Carlavilla, J. R., Carvalho, A., Castañeda-Ruiz, R. F., Castlebury, L., Castro-Jauregui, O., Catania, M. D., Cavalcanti, L. H., Cazabonne, J., Cedeño-Sanchez, M. L., Chaharmiri-Dokhaharani, S., Chaiwan, N., Chakraborty, N., Chaverri, P., Cheewangkoon, R., Chen, C., Chen, C. Y., Chen, K. H., Chen, J., Chen, Q., Chen, W. H., Chen, Y. P., Chethana, K. W. T., Coleine, C., Condé, T. O., Corazon-Guivin, M. A., Cortés-Pérez, A., Costa-Rezende, D. H., Courtecuisse, R., Crouch, J. A., Crous, P. W., Cui, B. K., Cui, Y. Y., da Silva, D. K. A., da Silva, G. A., da Silva, I. R., da Silva, R. M. F., da Silva Santos, A. C., Dai, D. Q., Dai, Y. C., Damm, U., Darmostuk, V., Zoha, Daroodi, Das, K., Davoodian, N., Davydov, E. A., Dayarathne, M. C., Decock, C., de Groot, M. D., De Kesel, A., de la Cruz, T. E. E., De Lange, R., Delgado, G., Denchev, C. M., Denchev, T. T., de Oliveira, N. T., de Silva, N. I., de Souza, F. A., Dentinger, B., Devadatha, B., Dianese, J. C., Dima, B., Diniz, A. G., Dissanayake, A. J., Dissanayake, L. S., Doğan, H. H., Doilom, M., Dolatabadi, S., Dong, W., Dong, Z. Y., Dos Santos, L. A., Drechsler-Santos, E. R., Du, T. Y., Dubey, M. K., Dutta, A. K., Egidi, E., Elliott, T. F., Elshahed, M. S., Erdoğdu, M., Ertz, D., Etayo, J., Evans, H. C., Fan, X. L., Fan, Y. G., Fedosova, A. G., Fell, J., Fernandes, I., Firmino, A. L., Fiuza, P. O., Flakus, A., de Souza, C. A.Fragoso, Frisvad, J. C., Fryar, S. C., Gabaldón, T., Gajanayake, A. J., Galindo, L. J., Gannibal, P. B., García, D., García-Sandoval, S. R., Garrido-Benavent, I., Garzoli, L., Gautam, A. K., Ge, Z. W., Gené, D. J., Gentekaki, E., Ghobad-Nejhad, M., Giachini, A. J., Gibertoni, T. B., Góes-Neto, A., Gomdola, D., de Farias, A. R. Gomes, Gorjón, S. P., Goto, B. T., Granados-Montero, M. M., Griffith, G. W., Groenewald, J. Z., Groenewald, M., Grossart, H. P., Gueidan, C., Gunarathne, A., Gunaseelan, S., Gusmão, L. F.P., Gutierrez, A. C., Guzmán-Dávalos, L., Haelewaters, D., Halling, R., Han, Y. F., Hapuarachchi, K. K., Harder, C. B., Harrington, T. C., Hattori, T., He, M. Q., He, S., He, S. H., Healy, R., Herández-Restrepo, M., Heredia, G., Hodge, K. T., Holgado-Rojas, M., Hongsanan, S., Horak, E., Hosoya, T., Houbraken, J., Huang, S. K., Huanraluek, N., Hur, J. S., Hurdeal, V. G., Hustad, V. P., Iotti, M., Iturriaga, T., Jafar, E., Janik, P., Jany, J. L., Jayalal, R. G.U., Jayasiri, S. C., Jayawardena, R. S., Jeewon, R., Jerônimo, G. H., Jesus, A. L., Jin, J., Johnston, P. R., Jones, E. B.G., Joshi, Y., Justo, A., Kaishian, P., Kakishima, M., Kaliyaperumal, M., Kang, G. P., Kang, J. C., Karakehian, J. M., Karimi, O., Karpov, S. A., Karunarathna, S. C., Kaufmann, M., Kemler, M., Kezo, K., Khyaju, S., Kirchmair, M., Kirk, P. M., Kitaura, M. J., Klawonn, I., Kolarik, M., Kong, A., Kuhar, F., Kukwa, M., Kumar, S., Kušan, I., Lado, C., Larsson, K. H., Latha, K. P.D., Lee, H. B., Leonardi, M., Leontyev, D. L., Lestari, A. S., Li, C. J.Y., Li, D. W., Li, H. Y., Li, L., Li, Q. R., Li, W. L., Li, Y., Li, Y. C., Liao, C. F., Liimatainen, K., Lim, Y. W., Lin, C. G., Linaldeddu, B. T., Linde, C. C., Linn, M. M., Liu, F., Liu, J. K., Liu, N. G., Liu, S., Liu, X. F., Liu, X. Z., Liu, Z. B., Lu, L., Lu, Y. Z., Luangharn, T., Luangsa-ard, J. J., Lumbsch, H. T., Lumyong, S., Luo, L., Luo, M., Luo, Z. L., Ma, J., Machado, A. R., Madagammana, A. D., Madrid, H., Magurno, F., Magyar, D., Mahadevan, N., Maharachchikumbura, S. S.N., Maimaiti, Y., Malosso, E., Manamgoda, D. S., Manawasinghe, I. S., Mapook, A., Marasinghe, D. S., Mardones, M., Marin-Felix, Y., Márquez, R., Masigol, H., Matočec, N., May, T. W., McKenzie, E. H.C., Meiras-Ottoni, A., Melo, R. F.R., Mendes-Alvarenga, R. L., Mendieta, S., Meng, Q. F., Menkis, A., Menolli, N., Mešić, A., Calvo, J. G.Meza, Mikhailov, K. V., Miller, S. L., Moncada, B., Moncalvo, J. M., Monteiro, J. S., Monteiro, M., Mora-Montes, H. M., Moreau, P. A., Mueller, G. M., Mukhopadyay, S., Murugadoss, R., Nagy, L. G., Najafiniya, M., Nanayakkara, C. M., Nascimento, C. C., Nei, Y., Neves, M. A., Neuhauser, S., Niego, A. G.T., Nilsson, R. H., Niskanen, T., Niveiro, N., Noorabadi, M. T., Noordeloos, M. E., Norphanphoun, C., Otaño, N. B.Nuñez, O’Donnell, R. P., Oehl, F., Olariaga, I., Orlando, O. P., Pang, K. L., Papp, V., Pawłowska, J., Peintner, U., Pem, D., Pereira, O. L., Perera, R. H., Perez-Moreno, J., Perez-Ortega, S., Péter, G., Phillips, A. J.L., Phonemany, M., Phukhamsakda, C., Phutthacharoen, K., Piepenbring, M., Pires-Zottarelli, C. L.A., Poinar, G., Pošta, A., Prieto, M., Promputtha, I., Quandt, C. A., Radek, R., Rahnama, K., Raj, K. N.A., Rajeshkumar, K. C., Rämä, T., Rambold, G., Ramírez-Cruz, V., Rasconi, S., Rathnayaka, A. R., Raza, M., Ren, G. C., Robledo, G. L., Rodriguez-Flakus, P., Ronikier, A., Rossi, W., Ryberg, M., Ryvarden, L. R., Salvador-Montoya, C. A., Samant, B., Samarakoon, B. C., Samarakoon, M. C., Sánchez-Castro, I., Sánchez-García, M., Sandoval-Denis, M., Santamaria, B., Santiago, A. L.C.M.A., Sarma, V. V., Savchenko, A., Savchenko, K., Saxena, R. K., Scholler, M., Schoutteten, N., Seifollahi, E., Selbmann, L., Selcuk, F., Senanayake, I. C., Shabashova, T. G., Shen, H. W., Shen, Y. M., Silva-Filho, A. G.S., Simmons, D. R., Singh, R., Sir, E. B., Song, C. G., Souza-Motta, C. M., Sruthi, O. P., Stadler, M., Stchigel, A. M., Stemler, J., Stephenson, S. L., Strassert, J. F.H., Su, H. L., Su, L., Suetrong, S., Sulistyo, B., Sun, Y. R., Svantesson, S., Sysouphanthong, P., Takamatsu, S., Tan, T. H., Tanaka, K., Tang, A. M.C., Tang, X., Tanney, J. B., Tavakol, N. M., Taylor, J. E., Taylor, P. W.J., Tedersoo, L., Tennakoon, D. S., Thamodini, G. K., Thines, M., Thiyagaraja, V., Thongklang, N., Tiago, P. V., Tian, Q., Tian, W. H., Tibell, L., Tibell, S., Tibpromma, S., Tkalčec, Z., Tomšovský, M., Toome-Heller, M., Torruella, G., Tsurykau, A., Udayanga, D., Ulukapi, M., Untereiner, W. A., Uzunov, B. A., Valle, L. G., Van Caenegem, W., Van den Wyngaert, S., Van Vooren, N., Velez, P., Verma, R. K., Vieira, L. C., Vieira, W. A.S., Vizzini, A., Walker, A., Walker, A. K., Wanasinghe, D. N., Wang, C. G., Wang, K., Wang, S. X., Wang, X. Y., Wang, Y., Wannasawang, N., Wartchow, F., Wei, D. P., Wei, X. L., White, J. F., Wijayawardene, N. N., Wijesinghe, S. N., Wijesundara, D. S.A., Wisitrassameewong, K., Worthy, F. R., Wu, F., Wu, G., Wu, H. X., Wu, N., Wu, W. P., Wurzbacher, C., Xiao, Y. P., Xiong, Y. R., Xu, B., Xu, L. J., Xu, R., Xu, T. M., Yakovchenko, L., Yan, J. Y., Yang, H. D., Yang, J., Yang, Z. L., Yang, Y. H., Yapa, N., Yasanthika, E., Youssef, N. H., Yu, F. M., Yu, Q., Yu, X. D., Yu, Y. X., Yu, Z. F., Yuan, H. S., Yuan, Y., Yurkov, A., Zafari, D., Zamora, J. C., Zare, R., Zeng, M., Zeng, N. K., Zeng, X. Y., Zhang, F., Zhang, H., Zhang, J. F., Zhang, J. Y., Zhang, Q. Y., Zhang, S. N., Zhang, W., Zhang, Y., Zhao, C. L., Zhao, H., Zhao, Q., Zhao, R. L., Zhou, L. W., Zhou, M., Zhurbenko, M. P., Zin, H. H., Zucconi, L., Hyde, K. D., Abdel-Wahab, M. A., Abdollahzadeh, J., Abeywickrama, P. D., Absalan, S., Afshari, N., Ainsworth, A. M., Akulov, O. Y., Aleoshin, V. V., Al-Sadi, A. M., Alvarado, P., Alves, A., Alves-Silva, G., Amalfi, M., Amira, Y., Amuhenage, T. B., Anderson, J. L., Antonín, V., Aouali, S., Aptroot, A., Apurillo, C. C. S., Araújo, J. P.M., Ariyawansa, H. A., Armand, A., Arumugam, E., Asghari, R., Assis, D. M.A., Atienza, V., Avasthi, S., Azevedo, E., Bahkali, A. H., Bakhshi, M., Banihashemi, Z., Bao, D. F., Baral, H. O., Barata, M., Barbosa, F. R., Barbosa, R. N., Barreto, R. W., Baschien, C., Belamesiatseva, D. B., Reuel, M. Bennett, Bera, I., Bezerra, J. D. P., Bezerra, J. L., Bhat, D. J., Bhunjun, C. S., Bianchinotti, M. V., Błaszkowski, J., Blondelle, A., Boekhout, T., Bonito, G., Boonmee, S., Boonyuen, N., Bregant, C., Buchanan, P., Bundhun, D., Burgaud, G., Burgess, T., Buyck, B., Cabarroi-Hernández, M., Cáceres, M. E. S., Caeiro, M. F., Cai, L., Cai, M. F., Calabon, M. S., Calaça, F. J. S., Callalli, M., Camara, M. P. S., Cano-Lira, J. F., Cantillo, T., Cao, B., Carlavilla, J. R., Carvalho, A., Castañeda-Ruiz, R. F., Castlebury, L., Castro-Jauregui, O., Catania, M. D., Cavalcanti, L. H., Cazabonne, J., Cedeño-Sanchez, M. L., Chaharmiri-Dokhaharani, S., Chaiwan, N., Chakraborty, N., Chaverri, P., Cheewangkoon, R., Chen, C., Chen, C. Y., Chen, K. H., Chen, J., Chen, Q., Chen, W. H., Chen, Y. P., Chethana, K. W. T., Coleine, C., Condé, T. O., Corazon-Guivin, M. A., Cortés-Pérez, A., Costa-Rezende, D. H., Courtecuisse, R., Crouch, J. A., Crous, P. W., Cui, B. K., Cui, Y. Y., da Silva, D. K. A., da Silva, G. A., da Silva, I. R., da Silva, R. M. F., da Silva Santos, A. C., Dai, D. Q., Dai, Y. C., Damm, U., Darmostuk, V., Zoha, Daroodi, Das, K., Davoodian, N., Davydov, E. A., Dayarathne, M. C., Decock, C., de Groot, M. D., De Kesel, A., de la Cruz, T. E. E., De Lange, R., Delgado, G., Denchev, C. M., Denchev, T. T., de Oliveira, N. T., de Silva, N. I., de Souza, F. A., Dentinger, B., Devadatha, B., Dianese, J. C., Dima, B., Diniz, A. G., Dissanayake, A. J., Dissanayake, L. S., Doğan, H. H., Doilom, M., Dolatabadi, S., Dong, W., Dong, Z. Y., Dos Santos, L. A., Drechsler-Santos, E. R., Du, T. Y., Dubey, M. K., Dutta, A. K., Egidi, E., Elliott, T. F., Elshahed, M. S., Erdoğdu, M., Ertz, D., Etayo, J., Evans, H. C., Fan, X. L., Fan, Y. G., Fedosova, A. G., Fell, J., Fernandes, I., Firmino, A. L., Fiuza, P. O., Flakus, A., de Souza, C. A.Fragoso, Frisvad, J. C., Fryar, S. C., Gabaldón, T., Gajanayake, A. J., Galindo, L. J., Gannibal, P. B., García, D., García-Sandoval, S. R., Garrido-Benavent, I., Garzoli, L., Gautam, A. K., Ge, Z. W., Gené, D. J., Gentekaki, E., Ghobad-Nejhad, M., Giachini, A. J., Gibertoni, T. B., Góes-Neto, A., Gomdola, D., de Farias, A. R. Gomes, Gorjón, S. P., Goto, B. T., Granados-Montero, M. M., Griffith, G. W., Groenewald, J. Z., Groenewald, M., Grossart, H. P., Gueidan, C., Gunarathne, A., Gunaseelan, S., Gusmão, L. F.P., Gutierrez, A. C., Guzmán-Dávalos, L., Haelewaters, D., Halling, R., Han, Y. F., Hapuarachchi, K. K., Harder, C. B., Harrington, T. C., Hattori, T., He, M. Q., He, S., He, S. H., Healy, R., Herández-Restrepo, M., Heredia, G., Hodge, K. T., Holgado-Rojas, M., Hongsanan, S., Horak, E., Hosoya, T., Houbraken, J., Huang, S. K., Huanraluek, N., Hur, J. S., Hurdeal, V. G., Hustad, V. P., Iotti, M., Iturriaga, T., Jafar, E., Janik, P., Jany, J. L., Jayalal, R. G.U., Jayasiri, S. C., Jayawardena, R. S., Jeewon, R., Jerônimo, G. H., Jesus, A. L., Jin, J., Johnston, P. R., Jones, E. B.G., Joshi, Y., Justo, A., Kaishian, P., Kakishima, M., Kaliyaperumal, M., Kang, G. P., Kang, J. C., Karakehian, J. M., Karimi, O., Karpov, S. A., Karunarathna, S. C., Kaufmann, M., Kemler, M., Kezo, K., Khyaju, S., Kirchmair, M., Kirk, P. M., Kitaura, M. J., Klawonn, I., Kolarik, M., Kong, A., Kuhar, F., Kukwa, M., Kumar, S., Kušan, I., Lado, C., Larsson, K. H., Latha, K. P.D., Lee, H. B., Leonardi, M., Leontyev, D. L., Lestari, A. S., Li, C. J.Y., Li, D. W., Li, H. Y., Li, L., Li, Q. R., Li, W. L., Li, Y., Li, Y. C., Liao, C. F., Liimatainen, K., Lim, Y. W., Lin, C. G., Linaldeddu, B. T., Linde, C. C., Linn, M. M., Liu, F., Liu, J. K., Liu, N. G., Liu, S., Liu, X. F., Liu, X. Z., Liu, Z. B., Lu, L., Lu, Y. Z., Luangharn, T., Luangsa-ard, J. J., Lumbsch, H. T., Lumyong, S., Luo, L., Luo, M., Luo, Z. L., Ma, J., Machado, A. R., Madagammana, A. D., Madrid, H., Magurno, F., Magyar, D., Mahadevan, N., Maharachchikumbura, S. S.N., Maimaiti, Y., Malosso, E., Manamgoda, D. S., Manawasinghe, I. S., Mapook, A., Marasinghe, D. S., Mardones, M., Marin-Felix, Y., Márquez, R., Masigol, H., Matočec, N., May, T. W., McKenzie, E. H.C., Meiras-Ottoni, A., Melo, R. F.R., Mendes-Alvarenga, R. L., Mendieta, S., Meng, Q. F., Menkis, A., Menolli, N., Mešić, A., Calvo, J. G.Meza, Mikhailov, K. V., Miller, S. L., Moncada, B., Moncalvo, J. M., Monteiro, J. S., Monteiro, M., Mora-Montes, H. M., Moreau, P. A., Mueller, G. M., Mukhopadyay, S., Murugadoss, R., Nagy, L. G., Najafiniya, M., Nanayakkara, C. M., Nascimento, C. C., Nei, Y., Neves, M. A., Neuhauser, S., Niego, A. G.T., Nilsson, R. H., Niskanen, T., Niveiro, N., Noorabadi, M. T., Noordeloos, M. E., Norphanphoun, C., Otaño, N. B.Nuñez, O’Donnell, R. P., Oehl, F., Olariaga, I., Orlando, O. P., Pang, K. L., Papp, V., Pawłowska, J., Peintner, U., Pem, D., Pereira, O. L., Perera, R. H., Perez-Moreno, J., Perez-Ortega, S., Péter, G., Phillips, A. J.L., Phonemany, M., Phukhamsakda, C., Phutthacharoen, K., Piepenbring, M., Pires-Zottarelli, C. L.A., Poinar, G., Pošta, A., Prieto, M., Promputtha, I., Quandt, C. A., Radek, R., Rahnama, K., Raj, K. N.A., Rajeshkumar, K. C., Rämä, T., Rambold, G., Ramírez-Cruz, V., Rasconi, S., Rathnayaka, A. R., Raza, M., Ren, G. C., Robledo, G. L., Rodriguez-Flakus, P., Ronikier, A., Rossi, W., Ryberg, M., Ryvarden, L. R., Salvador-Montoya, C. A., Samant, B., Samarakoon, B. C., Samarakoon, M. C., Sánchez-Castro, I., Sánchez-García, M., Sandoval-Denis, M., Santamaria, B., Santiago, A. L.C.M.A., Sarma, V. V., Savchenko, A., Savchenko, K., Saxena, R. K., Scholler, M., Schoutteten, N., Seifollahi, E., Selbmann, L., Selcuk, F., Senanayake, I. C., Shabashova, T. G., Shen, H. W., Shen, Y. M., Silva-Filho, A. G.S., Simmons, D. R., Singh, R., Sir, E. B., Song, C. G., Souza-Motta, C. M., Sruthi, O. P., Stadler, M., Stchigel, A. M., Stemler, J., Stephenson, S. L., Strassert, J. F.H., Su, H. L., Su, L., Suetrong, S., Sulistyo, B., Sun, Y. R., Svantesson, S., Sysouphanthong, P., Takamatsu, S., Tan, T. H., Tanaka, K., Tang, A. M.C., Tang, X., Tanney, J. B., Tavakol, N. M., Taylor, J. E., Taylor, P. W.J., Tedersoo, L., Tennakoon, D. S., Thamodini, G. K., Thines, M., Thiyagaraja, V., Thongklang, N., Tiago, P. V., Tian, Q., Tian, W. H., Tibell, L., Tibell, S., Tibpromma, S., Tkalčec, Z., Tomšovský, M., Toome-Heller, M., Torruella, G., Tsurykau, A., Udayanga, D., Ulukapi, M., Untereiner, W. A., Uzunov, B. A., Valle, L. G., Van Caenegem, W., Van den Wyngaert, S., Van Vooren, N., Velez, P., Verma, R. K., Vieira, L. C., Vieira, W. A.S., Vizzini, A., Walker, A., Walker, A. K., Wanasinghe, D. N., Wang, C. G., Wang, K., Wang, S. X., Wang, X. Y., Wang, Y., Wannasawang, N., Wartchow, F., Wei, D. P., Wei, X. L., White, J. F., Wijayawardene, N. N., Wijesinghe, S. N., Wijesundara, D. S.A., Wisitrassameewong, K., Worthy, F. R., Wu, F., Wu, G., Wu, H. X., Wu, N., Wu, W. P., Wurzbacher, C., Xiao, Y. P., Xiong, Y. R., Xu, B., Xu, L. J., Xu, R., Xu, T. M., Yakovchenko, L., Yan, J. Y., Yang, H. D., Yang, J., Yang, Z. L., Yang, Y. H., Yapa, N., Yasanthika, E., Youssef, N. H., Yu, F. M., Yu, Q., Yu, X. D., Yu, Y. X., Yu, Z. F., Yuan, H. S., Yuan, Y., Yurkov, A., Zafari, D., Zamora, J. C., Zare, R., Zeng, M., Zeng, N. K., Zeng, X. Y., Zhang, F., Zhang, H., Zhang, J. F., Zhang, J. Y., Zhang, Q. Y., Zhang, S. N., Zhang, W., Zhang, Y., Zhao, C. L., Zhao, H., Zhao, Q., Zhao, R. L., Zhou, L. W., Zhou, M., Zhurbenko, M. P., Zin, H. H., and Zucconi, L.
Abstract: The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-career and early-career mycologists and plant pathologists. The Consortium will publish a biannual update of the Outline of Fungi and fungus-like taxa, to act as an international scheme for other scientists. Notes on all newly published taxa at or above the level of species will be prepared and published online on the Outline of Fungi website (https://www.outlineoffungi.org/), and these will be finally published in the biannual edition of the Outline of Fungi and fungus-like taxa. Comments on recent important taxonomic opinions on controversial topics will be included in the biannual outline. For example, 'to promote a more stable taxonomy in Fusarium given the divergences over its generic delimitation', or 'are there too many genera in the Boletales?' and even more importantly, 'what should be done with the tremendously diverse 'dark fungal taxa?' There are undeniable differences in mycologists' perceptions and opinions regarding species classification as well as the establishment of new species. Given the pluralistic nature of fungal taxonomy and its implications for species concepts and the nature of species, this consortium aims to provide a platform to better refine and stabilise fungal classification, taking into consideration views from different parties. In the future, a confidential voting system will be set up to gauge the opinions of all mycologists in the Consortium on important topics. The results of such surveys will be presented to the International Commission on the Taxonomy of Fungi (ICTF) and the Nomenclature Committee
Published: 2023

9. Weak Response of Animal Allochthony and Production to Enhanced Supply of Terrestrial Leaf Litter in Nutrient-Rich Lakes

Author: Mehner, T., Attermeyer, K., Brauns, M., Brothers, S., Diekmann, J., Gaedke, U., Grossart, H.-P., Köhler, J., Lischke, B., Meyer, N., Scharnweber, K., Syväranta, J., Vanni, M. J., and Hilt, S.
Published: 2016

10. A feedback loop links brownification and anoxia in a temperate, shallow lake

Author: Brothers, S., Köhler, J., Attermeyer, K., Grossart, H. P., Mehner, T., Meyer, N., Scharnweber, K., and Hilt, S.
Published: 2014

11. From microbes to mammals: Pond biodiversity homogenization across different land‐use types in an agricultural landscape

Author: Ionescu, D., primary, Bizic, M., additional, Karnatak, R., additional, Musseau, C. L., additional, Onandia, G., additional, Kasada, M., additional, Berger, S. A., additional, Nejstgaard, J. C., additional, Ryo, M., additional, Lischeid, G., additional, Gessner, M. O., additional, Wollrab, S., additional, and Grossart, H.‐P., additional
Published: 2022
Full Text: View/download PDF

12. 10 Must Knows from Biodiversity Science 2022. Zenodo. Version 1

Author: Thonicke, K., Rahner, E., Arneth, A., Bartkowski, Bartosz, Bonn, Aletta ; orcid:0000-0002-8345-4600, Döhler, C., Finger, R., Freitag, J., Grosch, R., Grossart, H.-P., Grützmacher, K., Hartman Scholz, A., Häuser, C., Hickler, T., Hölker, F., Jähnig, S.C., Jeschke, J., Kassen, R., Kastner, T., Kramer-Schadt, S., Krug, C., Lakner, S., Loft, L., Matzdorf, B., Meakins, F., De Meester, L., Monaghan, M.T., Müller, D., Overmann, J., Quaas, M., Radchuk, V., Reyer, C., Roos, C., Scholz, I., Schroer, S., Sioen, G.B., Sommer, S., Sommerwerk, N., Tockner, K., Turk, Z., Warner, B., Wätzold, F., Wende, W., Veenstra, T., van der Voort, H., Thonicke, K., Rahner, E., Arneth, A., Bartkowski, Bartosz, Bonn, Aletta ; orcid:0000-0002-8345-4600, Döhler, C., Finger, R., Freitag, J., Grosch, R., Grossart, H.-P., Grützmacher, K., Hartman Scholz, A., Häuser, C., Hickler, T., Hölker, F., Jähnig, S.C., Jeschke, J., Kassen, R., Kastner, T., Kramer-Schadt, S., Krug, C., Lakner, S., Loft, L., Matzdorf, B., Meakins, F., De Meester, L., Monaghan, M.T., Müller, D., Overmann, J., Quaas, M., Radchuk, V., Reyer, C., Roos, C., Scholz, I., Schroer, S., Sioen, G.B., Sommer, S., Sommerwerk, N., Tockner, K., Turk, Z., Warner, B., Wätzold, F., Wende, W., Veenstra, T., and van der Voort, H.
Abstract: In the 10 Must Knows from Biodiversity Science 45 scientists present facts about biodiversity in a well-founded and generally intelligible way. They analyse the complex systems of the earth by highlighting ten key areas, each of which, in turn, is inextricably linked to all the others. And they show ways to stop the continued loss of species diversity and ecosystems, and to promote biodiversity. The underlying aim is to provide policy-makers and society with scientifically validated assessments of the latest knowledge to facilitate improved policy decisions and action at local, regional, national and global levels, in order to conserve the diversity of life – biodiversity. These are the 10MustKnows 2022: 1. Achieving climate and biodiversity protection together 2. Strengthening planetary health 3. Considering hidden biodiversity 4. Promoting biocultural habitats 5. Using forests sustainably 6. Transforming agriculture 7. Protecting land and resources 8. Expanding transnational infrastructure and education for sustainability 9. Ensuring access and open use of research data 10. Setting biodiversity-friendly incentives
Published: 2022

13. Global patterns and controls of nutrient immobilization on decomposing cellulose in riverine ecosystems

Author: Costello, D. M. (David M.), Tiegs, S. D. (Scott D.), Boyero, L. (Luz), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Danger, M. (Michael), Frost, P. C. (Paul C.), Gessner, M. O. (Mark O.), Griffiths, N. A. (Natalie A.), Halvorson, H. M. (Halvor M.), Kuehn, K. A. (Kevin A.), Marcarelli, A. M. (Amy M.), Royer, T. V. (Todd, V), Mathie, D. M. (Devan M.), Albarino, R. J. (Ricardo J.), Arango, C. P. (Clay P.), Aroviita, J. (Jukka), Baxter, C. V. (Colden, V), Bellinger, B. J. (Brent J.), Bruder, A. (Andreas), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Camacho, A. (Antonio), Colas, F. (Fanny), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Derry, A. M. (Alison M.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Eyto, E. (Elvira), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Garcia, E. A. (Erica A.), Garcia, L. (Liliana), Garcia, P. E. (Pavel E.), Giling, D. P. (Darren P.), Gonzales-Pomar, R. K. (R. Karina), Graca, M. A. (Manuel A. S.), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Hepp, L. U. (Luiz U.), Higgins, S. N. (Scott N.), Hishi, T. (Takuo), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), LeRoy, C. J. (Carri J.), Lisi, P. J. (Peter J.), Masese, F. O. (Frank O.), McIntyre, P. B. (Peter B.), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Milisa, M. (Marko), Miyake, Y. (Yo), Mooney, R. J. (Robert J.), Muotka, T. (Timo), Nimptsch, J. (Jorge), Paavola, R. (Riku), Pardo, I. (Isabel), Parnikoza, I. Y. (Ivan Y.), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Reid, B. (Brian), Richardson, J. S. (John S.), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Santamans, A. C. (Anna C.), Simiyu, G. M. (Gelas M.), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sponseller, R. A. (Ryan A.), Teixeira-de Mello, F. (Franco), Vilbaste, S. (Sirje), Villanueva, V. D. (Veronica D.), Webster, J. R. (Jackson R.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yule, C. M. (Catherine M.), Zhang, Y. (Yixin), Zwart, J. A. (Jacob A.), Costello, D. M. (David M.), Tiegs, S. D. (Scott D.), Boyero, L. (Luz), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Danger, M. (Michael), Frost, P. C. (Paul C.), Gessner, M. O. (Mark O.), Griffiths, N. A. (Natalie A.), Halvorson, H. M. (Halvor M.), Kuehn, K. A. (Kevin A.), Marcarelli, A. M. (Amy M.), Royer, T. V. (Todd, V), Mathie, D. M. (Devan M.), Albarino, R. J. (Ricardo J.), Arango, C. P. (Clay P.), Aroviita, J. (Jukka), Baxter, C. V. (Colden, V), Bellinger, B. J. (Brent J.), Bruder, A. (Andreas), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Camacho, A. (Antonio), Colas, F. (Fanny), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Derry, A. M. (Alison M.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Eyto, E. (Elvira), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Garcia, E. A. (Erica A.), Garcia, L. (Liliana), Garcia, P. E. (Pavel E.), Giling, D. P. (Darren P.), Gonzales-Pomar, R. K. (R. Karina), Graca, M. A. (Manuel A. S.), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Hepp, L. U. (Luiz U.), Higgins, S. N. (Scott N.), Hishi, T. (Takuo), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), LeRoy, C. J. (Carri J.), Lisi, P. J. (Peter J.), Masese, F. O. (Frank O.), McIntyre, P. B. (Peter B.), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Milisa, M. (Marko), Miyake, Y. (Yo), Mooney, R. J. (Robert J.), Muotka, T. (Timo), Nimptsch, J. (Jorge), Paavola, R. (Riku), Pardo, I. (Isabel), Parnikoza, I. Y. (Ivan Y.), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Reid, B. (Brian), Richardson, J. S. (John S.), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Santamans, A. C. (Anna C.), Simiyu, G. M. (Gelas M.), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sponseller, R. A. (Ryan A.), Teixeira-de Mello, F. (Franco), Vilbaste, S. (Sirje), Villanueva, V. D. (Veronica D.), Webster, J. R. (Jackson R.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yule, C. M. (Catherine M.), Zhang, Y. (Yixin), and Zwart, J. A. (Jacob A.)
Abstract: Microbes play a critical role in plant litter decomposition and influence the fate of carbon in rivers and riparian zones. When decomposing low-nutrient plant litter, microbes acquire nitrogen (N) and phosphorus (P) from the environment (i.e., nutrient immobilization), and this process is potentially sensitive to nutrient loading and changing climate. Nonetheless, environmental controls on immobilization are poorly understood because rates are also influenced by plant litter chemistry, which is coupled to the same environmental factors. Here we used a standardized, low-nutrient organic matter substrate (cotton strips) to quantify nutrient immobilization at 100 paired stream and riparian sites representing 11 biomes worldwide. Immobilization rates varied by three orders of magnitude, were greater in rivers than riparian zones, and were strongly correlated to decomposition rates. In rivers, P immobilization rates were controlled by surface water phosphate concentrations, but N immobilization rates were not related to inorganic N. The N:P of immobilized nutrients was tightly constrained to a molar ratio of 10:1 despite wide variation in surface water N:P. Immobilization rates were temperature-dependent in riparian zones but not related to temperature in rivers. However, in rivers nutrient supply ultimately controlled whether microbes could achieve the maximum expected decomposition rate at a given temperature. Collectively, we demonstrated that exogenous nutrient supply and immobilization are critical control points for decomposition of organic matter.
Published: 2022

14. A global agenda for advancing freshwater biodiversity research

Author: Maasri, A., Jähnig, S. C., Adamescu, M. C., Adrian, R., Baigun, C., Baird, D. J., Batista-Morales, A., Bonada, N., Brown, M. L., Cai, Q., Campos-Silva, J. V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S. J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, D. K. B., Do, V. T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M. O., Goethals, P., Gollock, M., Gordon, C., Grossart, H. P., Gulemvuga, V., Gutiérrez-Fonseca, P. E., Haase, P., Hering, D., Hahn, H. J., Hawkins, C. P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J. M., Jiang, M., Johnson, R. K., Kalinkat, G., Karimov, B. K., Kasangaki, A., Kimirei, I. A., Kohlmann, B., Kuemmerlen, M., Kuiper, J. J., Kupilas, B., Langhans, S. D., Lansdown, R., Leese, F., Magbanua, F. S., Matsuzaki, S. i. S., Monaghan, M. T., Mumladze, L., Muzon, J., Mvogo Ndongo, P. A., Nejstgaard, J. C., Nikitina, O., Ochs, S., Odume, O., Opperman, J. J., Patricio, H., Pauls, S., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M. J., Schäfer, R. B., Schmidt-Kloiber, A., Seehausen, O., Shah, D. N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J. D., Suhling, F., Tachamo Shah, R. D., Tharme, R. E., Thorp, J. H., Tickner, D., Tockner, K., Tonkin, J. D., Valle, M., Vitule, J., Volk, M., Wang, D., Worischka, S., Wolter, C., Maasri, A., Jähnig, S. C., Adamescu, M. C., Adrian, R., Baigun, C., Baird, D. J., Batista-Morales, A., Bonada, N., Brown, M. L., Cai, Q., Campos-Silva, J. V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S. J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, D. K. B., Do, V. T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M. O., Goethals, P., Gollock, M., Gordon, C., Grossart, H. P., Gulemvuga, V., Gutiérrez-Fonseca, P. E., Haase, P., Hering, D., Hahn, H. J., Hawkins, C. P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J. M., Jiang, M., Johnson, R. K., Kalinkat, G., Karimov, B. K., Kasangaki, A., Kimirei, I. A., Kohlmann, B., Kuemmerlen, M., Kuiper, J. J., Kupilas, B., Langhans, S. D., Lansdown, R., Leese, F., Magbanua, F. S., Matsuzaki, S. i. S., Monaghan, M. T., Mumladze, L., Muzon, J., Mvogo Ndongo, P. A., Nejstgaard, J. C., Nikitina, O., Ochs, S., Odume, O., Opperman, J. J., Patricio, H., Pauls, S., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M. J., Schäfer, R. B., Schmidt-Kloiber, A., Seehausen, O., Shah, D. N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J. D., Suhling, F., Tachamo Shah, R. D., Tharme, R. E., Thorp, J. H., Tickner, D., Tockner, K., Tonkin, J. D., Valle, M., Vitule, J., Volk, M., Wang, D., Worischka, S., and Wolter, C.
Published: 2022

15. Nano- and microplastics: a comprehensive review on their exposure routes, translocation, and fate in humans

Author: Ramsperger, A.F.R.M., Bergamaschi, E., Panizzolo, M., Fenoglio, I., Barbero, F., Peters, R., Undas, A., Purker, S., Giese, B., Lalyer, C.R., Tamargo, A., Moreno-Arribas, M.V., Grossart, H.-P., Kühnel, Dana, Dietrich, J., Paulsen, F., Afanou, A.K., Zienolddiny-Narui, S., Eriksen Hammer, S., Kringlen Ervik, T., Graff, P., Brinchmann, B.C., Nordby, K.-C., Wallin, H., Nassi, M., Benetti, F., Zanella, M., Brehm, J., Kress, H., Löder, M.G.J., Laforsch, C., Ramsperger, A.F.R.M., Bergamaschi, E., Panizzolo, M., Fenoglio, I., Barbero, F., Peters, R., Undas, A., Purker, S., Giese, B., Lalyer, C.R., Tamargo, A., Moreno-Arribas, M.V., Grossart, H.-P., Kühnel, Dana, Dietrich, J., Paulsen, F., Afanou, A.K., Zienolddiny-Narui, S., Eriksen Hammer, S., Kringlen Ervik, T., Graff, P., Brinchmann, B.C., Nordby, K.-C., Wallin, H., Nassi, M., Benetti, F., Zanella, M., Brehm, J., Kress, H., Löder, M.G.J., and Laforsch, C.
Abstract: Contamination of the environment with nano-and microplastic particles (NMPs) and its putative adverse effects on organisms, ecosystems, and human health is gaining increasing scientific and public attention. Various studies show that NMPs occur abundantly within the environment, leading to a high likelihood of human exposure to NMPs. Here, different exposure scenarios can occur. The most notable exposure routes of NMPs into the human body are via the airways and gastrointestinal tract (GIT) through inhalation or ingestion, but also via the skin due to the use of personal care products (PCPs) containing NMPs. Once NMPs have entered the human body, it is possible that they are translocated from the exposed organ to other body compartments. In our review article, we combine the current knowledge on the (1) exposure routes of NMPs to humans with the basic understanding of the potential (2) translocation mechanisms into human tissues and, consequently, their (3) fate within the human body. Regarding the (1) exposure routes, we reviewed the current knowledge on the occurrence of NMPs in food, beverages, personal care products and the air (focusing on indoors and workplaces) and found that the studies suggest an abundant presence of MPs within the exposure scenarios. The overall abundance of MPs in exposure matrices relevant to humans highlights the importance of understanding whether NMPs have the potential for tissue translocation. Therefore, we describe the current knowledge on the potential (2) translocation pathways of NMPs from the skin, GIT and respiratory systems to other body compartments. Here, particular attention was paid to how likely NMPs can translocate from the primary exposed organs to secondary organs due to naturally occurring defence mechanisms against tissue translocation. Based on the current understanding, we conclude that a dermal translocation of NMPs is rather unlikely. In contrast, small MPs and NPs can generally translocate from the GIT and resp
Published: 2022

16. Efficient carbon and nitrogen transfer from marine diatom aggregates to colonizing bacterial groups

Author: Arandia-Gorostidi, Nestor, Berthelot, Hugo, Calabrese, Federica, Stryhanyuk, Hryhoriy, Klawonn, I., Iversen, M., Nahar, N., Grossart, H.-P., Ploug, H., Musat, Niculina, Arandia-Gorostidi, Nestor, Berthelot, Hugo, Calabrese, Federica, Stryhanyuk, Hryhoriy, Klawonn, I., Iversen, M., Nahar, N., Grossart, H.-P., Ploug, H., and Musat, Niculina
Abstract: Bacterial degradation of sinking diatom aggregates is key for the availability of organic matter in the deep-ocean. Yet, little is known about the impact of aggregate colonization by different bacterial taxa on organic carbon and nutrient cycling within aggregates. Here, we tracked the carbon (C) and nitrogen (N) transfer from the diatom Leptocylindrus danicus to different environmental bacterial groups using a combination of 13C and 15N isotope incubation (incubated for 72 h), CARD-FISH and nanoSIMS single-cell analysis. Pseudoalteromonas bacterial group was the first colonizing diatom-aggregates, succeeded by the Alteromonas group. Within aggregates, diatom-attached bacteria were considerably more enriched in 13C and 15N than non-attached bacteria. Isotopic mass balance budget indicates that both groups showed comparable levels of diatom C in their biomass, accounting for 19 ± 7% and 15 ± 11%, respectively. In contrast to C, bacteria of the Alteromonas groups showed significantly higher levels of N derived from diatoms (77 ± 28%) than Pseudoalteromonas (47 ± 17%), suggesting a competitive advantage for Alteromonas in the N-limiting environments of the deep-sea. Our results imply that bacterial succession within diatom aggregates may largely impact taxa-specific C and N uptake, which may have important consequences for the quantity and quality of organic matter exported to the deep ocean.
Published: 2022

17. 10 Must Knows from Biodiversity Science 2022

Author: Thonicke, K., Rahner, E., Arneth, A., Bartkowski, Bartosz, Bonn, Aletta, Döhler, C., Finger, R., Freitag, J., Grosch, R., Grossart, H.-P., Grützmacher, K., Hartman Scholz, A., Häuser, C., Hickler, T., Hölker, F., Jähnig, S.C., Jeschke, J., Kassen, R., Kastner, T., Kramer-Schadt, S., Krug, C., Lakner, S., Loft, L., Matzdorf, B., Meakins, F., De Meester, L., Monaghan, M.T., Müller, D., Overmann, J., Quaas, M., Radchuk, V., Reyer, C., Roos, C., Scholz, I., Schroer, S., Sioen, G.B., Sommer, S., Sommerwerk, N., Tockner, K., Turk, Z., Warner, B., Wätzold, F., Wende, W., Veenstra, T., van der Voort, H., Thonicke, K., Rahner, E., Arneth, A., Bartkowski, Bartosz, Bonn, Aletta, Döhler, C., Finger, R., Freitag, J., Grosch, R., Grossart, H.-P., Grützmacher, K., Hartman Scholz, A., Häuser, C., Hickler, T., Hölker, F., Jähnig, S.C., Jeschke, J., Kassen, R., Kastner, T., Kramer-Schadt, S., Krug, C., Lakner, S., Loft, L., Matzdorf, B., Meakins, F., De Meester, L., Monaghan, M.T., Müller, D., Overmann, J., Quaas, M., Radchuk, V., Reyer, C., Roos, C., Scholz, I., Schroer, S., Sioen, G.B., Sommer, S., Sommerwerk, N., Tockner, K., Turk, Z., Warner, B., Wätzold, F., Wende, W., Veenstra, T., and van der Voort, H.
Abstract: In the 10 Must Knows from Biodiversity Science 45 scientists present facts about biodiversity in a well-founded and generally intelligible way. They analyse the complex systems of the earth by highlighting ten key areas, each of which, in turn, is inextricably linked to all the others. And they show ways to stop the continued loss of species diversity and ecosystems, and to promote biodiversity. The underlying aim is to provide policy-makers and society with scientifically validated assessments of the latest knowledge to facilitate improved policy decisions and action at local, regional, national and global levels, in order to conserve the diversity of life – biodiversity. These are the 10MustKnows 2022: 1. Achieving climate and biodiversity protection together 2. Strengthening planetary health 3. Considering hidden biodiversity 4. Promoting biocultural habitats 5. Using forests sustainably 6. Transforming agriculture 7. Protecting land and resources 8. Expanding transnational infrastructure and education for sustainability 9. Ensuring access and open use of research data 10. Setting biodiversity-friendly incentives
Published: 2022

18. Aquatic fungi: largely neglected targets for conservation

Author: Vatova, M., Rubin, C., Grossart, H.-P., Gonçalves, S.C., Schmidt, Susanne Isabel, Jarić, I., Vatova, M., Rubin, C., Grossart, H.-P., Gonçalves, S.C., Schmidt, Susanne Isabel, and Jarić, I.
Abstract: no abstract
Published: 2022

19. Corrigendum to: The global Microcystis interactome

Author: Cook, K.V., primary, Li, C., additional, Cai, H., additional, Krumholz, L.R., additional, Hambright, K.D., additional, Paerl, H.W., additional, Steffen, M.M., additional, Wilson, A.E., additional, Burford, M.A., additional, Grossart, H.‐P., additional, Hamilton, D. P., additional, Jiang, H., additional, Sukenik, A., additional, Latour, D., additional, Meyer, E.I., additional, Padisák, J., additional, Qin, B., additional, Zamor, R.M., additional, and Zhu, G., additional
Published: 2021
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20. FungalTraits: a user friendly traits database of fungi and fungus-like stramenopiles (Fungal Diversity, (2020), 105, 1, (1-16), 10.1007/s13225-020-00466-2)

Author: Polme, S., Abarenkov, K., Henrik Nilsson, R., Lindahl, B. D., Clemmensen, K. E., Kauserud, H., Nguyen, N., Kjoller, R., Bates, S. T., Baldrian, P., Froslev, T. G., Adojaan, K., Vizzini, A., Suija, A., Pfister, D., Baral, H. -O., Jarv, H., Madrid, H., Norden, J., Liu, J. -K., Pawlowska, J., Poldmaa, K., Partel, K., Runnel, K., Hansen, K., Larsson, K. -H., Hyde, K. D., Sandoval-Denis, M., Smith, M. E., Toome-Heller, M., Wijayawardene, N. N., Menolli, N., Reynolds, N. K., Drenkhan, R., Maharachchikumbura, S. S. N., Gibertoni, T. B., Laessoe, T., Davis, W., Tokarev, Y., Corrales, A., Soares, A. M., Agan, A., Machado, A. R., Arguelles-Moyao, A., Detheridge, A., de Meiras-Ottoni, A., Verbeken, A., Dutta, A. K., Cui, B. -K., Pradeep, C. K., Marin, C., Stanton, D., Gohar, D., Wanasinghe, D. N., Otsing, E., Aslani, F., Griffith, G. W., Lumbsch, T. H., Grossart, H. -P., Masigol, H., Timling, I., Hiiesalu, I., Oja, J., Kupagme, J. Y., Geml, J., Alvarez-Manjarrez, J., Ilves, K., Loit, K., Adamson, K., Nara, K., Kungas, K., Rojas-Jimenez, K., Bitenieks, K., Irinyi, L., Nagy, L. G., Soonvald, L., Zhou, L. -W., Wagner, L., Aime, M. C., Opik, M., Mujica, M. I., Metsoja, M., Ryberg, M., Vasar, M., Murata, M., Nelsen, M. P., Cleary, M., Samarakoon, M. C., Doilom, M., Bahram, M., Hagh-Doust, N., Dulya, O., Johnston, P., Kohout, P., Chen, Q., Tian, Q., Nandi, R., Amiri, R., Perera, R. H., dos Santos Chikowski, R., Mendes-Alvarenga, R. L., Garibay-Orijel, R., Gielen, R., Phookamsak, R., Jayawardena, R. S., Rahimlou, S., Karunarathna, S. C., Tibpromma, S., Brown, S. P., Sepp, S. -K., Mundra, S., Luo, Z. -H., Bose, T., Vahter, T., Netherway, T., Yang, T., May, T., Varga, T., Li, W., Coimbra, V. R. M., de Oliveira, V. R. T., de Lima, V. X., Mikryukov, V. S., Lu, Y., Matsuda, Y., Miyamoto, Y., Koljalg, U., and Tedersoo, L.
Published: 2021

21. Towards an improved understanding of biogeochemical processes across surface-groundwater interactions in intermittent rivers and ephemeral streams

Author: Gómez-Gener, L., Siebers, A.R., Arce, M.I., Arnon, S., Bernal, S., Bolpagni, R., Datry, T., Gionchetta, G., Grossart, H.-P., Mendoza-Lera, C., Pohl, V., Risse-Buhl, Ute, Shumilova, O., Tzoraki, O., von Schiller, D., Weigand, A., Weigelhofer, G., Zak, D., Zoppini, A., Gómez-Gener, L., Siebers, A.R., Arce, M.I., Arnon, S., Bernal, S., Bolpagni, R., Datry, T., Gionchetta, G., Grossart, H.-P., Mendoza-Lera, C., Pohl, V., Risse-Buhl, Ute, Shumilova, O., Tzoraki, O., von Schiller, D., Weigand, A., Weigelhofer, G., Zak, D., and Zoppini, A.
Abstract: Surface-groundwater interactions in intermittent rivers and ephemeral streams (IRES), waterways which do not flow year-round, are spatially and temporally dynamic because of alternations between flowing, non-flowing and dry hydrological states. Interactions between surface and groundwater often create mixing zones with distinct redox gradients, potentially driving high rates of carbon and nutrient cycling. Yet a complete understanding of how underlying biogeochemical processes across surface-groundwater flowpaths in IRES differ among various hydrological states remains elusive. Here, we present a conceptual framework relating spatial and temporal hydrological variability in surface water-groundwater interactions to biogeochemical processing hotspots in IRES. We combine a review of theIRES biogeochemistry literature with concepts of IRES hydrogeomorphology to: (i) outline common distinctions among hydrological states in IRES; (ii) use these distinctions, together with considerations of carbon, nitrogen, and phosphorus cycles within IRES, to predict the relative potential for biogeochemical processing across different reach-scale processing zones (flowing water, fragmented pools, hyporheic zones, groundwater, and emerged sediments); and (iii) explore the potential spatial and temporal variability of carbon and nutrient biogeochemical processing across entire IRES networks. Our approach estimates the greatest reach-scale potential for biogeochemical processing when IRES reaches are fragmented into isolated surface water pools, and highlights the potential of relatively understudied processing zones, such as emerged sediments. Furthermore, biogeochemical processing in fluvial networks dominated by IRES is likely more temporally than spatially variable. We conclude that biogeochemical research in IRES would benefit from focusing on interactions between different nutrient cycles, surface-groundwater interactions in non-flowing states, and consideration of fluvial network
Published: 2021

22. A global agenda for advancing freshwater biodiversity research

Author: Maasri, A., Jähnig, S.C., Adamescu, M.C., Adrian, R., Baigun, C., Baird, D.J., Batista-Morales, A., Bonada, N., Brown, L.E., Cai, Q., Campos-Silva, J.V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S.J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, K.-D.B., Do, V.T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M.O., Goethals, P., Gollock, M., Gordon, C., Grossart, H.-P., Gulemvuga, G., Gutiérrez-Fonseca, P.E., Haase, P., Hering, D., Hahn, H.J., Hawkins, C.P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J.M., Jiang, M., Johnson, R.K., Kalinkat, G., Karimov, B.K., Kasangaki, A., Kimirei, I.A., Kohlmann, B., Kuemmerlen, M., Kuiper, J.J., Kupilas, B., Langhans, S.D., Lansdown, R., Leese, F., Magbanua, F.S., Matsuzaki, S.S., Monaghan, M.T., Mumladze, L., Muzon, J., Mvogo Ndongo, P.A., Nejstgaard, J.C., Nikitina, O., Ochs, C., Odume, O.N., Opperman, J.J., Patricio, H., Pauls, S.U., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M.J., Schäfer, R.B., Schmidt-Kloiber, A., Seehausen, O., Shah, D.N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J.D., Suhling, F., Tachamo Shah, R.D., Tharme, R.E., Thorp, J.H., Tickner, D., Tockner, K., Tonkin, J.D., Valle, M., Vitule, J., Volk, Martin, Wang, D., Wolter, C., Worischka, S., Maasri, A., Jähnig, S.C., Adamescu, M.C., Adrian, R., Baigun, C., Baird, D.J., Batista-Morales, A., Bonada, N., Brown, L.E., Cai, Q., Campos-Silva, J.V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S.J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, K.-D.B., Do, V.T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M.O., Goethals, P., Gollock, M., Gordon, C., Grossart, H.-P., Gulemvuga, G., Gutiérrez-Fonseca, P.E., Haase, P., Hering, D., Hahn, H.J., Hawkins, C.P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J.M., Jiang, M., Johnson, R.K., Kalinkat, G., Karimov, B.K., Kasangaki, A., Kimirei, I.A., Kohlmann, B., Kuemmerlen, M., Kuiper, J.J., Kupilas, B., Langhans, S.D., Lansdown, R., Leese, F., Magbanua, F.S., Matsuzaki, S.S., Monaghan, M.T., Mumladze, L., Muzon, J., Mvogo Ndongo, P.A., Nejstgaard, J.C., Nikitina, O., Ochs, C., Odume, O.N., Opperman, J.J., Patricio, H., Pauls, S.U., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M.J., Schäfer, R.B., Schmidt-Kloiber, A., Seehausen, O., Shah, D.N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J.D., Suhling, F., Tachamo Shah, R.D., Tharme, R.E., Thorp, J.H., Tickner, D., Tockner, K., Tonkin, J.D., Valle, M., Vitule, J., Volk, Martin, Wang, D., Wolter, C., and Worischka, S.
Abstract: Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals and the mobilisation of substantial resources. While the reasons are varied, investments in both research and conservation of freshwater biodiversity lag far behind those in the terrestrial and marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five research areas, in an effort to support informed stewardship of freshwater biodiversity. The proposed agenda aims to advance freshwater biodiversity research globally as a critical step in improving coordinated actions towards its sustainable management and conservation.
Published: 2021

23. Intercomparison of two fluorescent dyes to visualize parasitic fungi (Chytridiomycota) on phytoplankton

Author: Klawonn, I., Dunker, Susanne, Kagami, M., Grossart, H.-P., Van den Wyngaert, S., Klawonn, I., Dunker, Susanne, Kagami, M., Grossart, H.-P., and Van den Wyngaert, S.
Abstract: Fungal microparasites (here chytrids) are widely distributed and yet, they are often overlooked in aquatic environments. To facilitate the detection of microparasites, we revisited the applicability of two fungal cell wall markers, Calcofluor White (CFW) and wheat germ agglutinin (WGA), for the direct visualization of chytrid infections on phytoplankton in laboratory-maintained isolates and field-sampled communities. Using a comprehensive set of chytrid–phytoplankton model pathosystems, we verified the staining pattern on diverse morphological structures of chytrids via fluorescence microscopy. Empty sporangia were stained most effectively, followed by encysted zoospores and im-/mature sporangia, while the staining success was more variable for rhizoids, stalks, and resting spores. In a few instances, the staining was unsuccessful (mostly with WGA), presumably due to insufficient cell fixation, gelatinous cell coatings, and multilayered cell walls. CFW and WGA staining could be done in Utermöhl chambers or on polycarbonate filters, but CFW staining on filters seemed less advisable due to high background fluorescence. To visualize chytrids, 1 µg dye mL−1 was sufficient (but 5 µg mL−1 are recommended). Using a dual CFW–WGA staining protocol, we detected multiple, mostly undescribed chytrids in two natural systems (freshwater and coastal), while falsely positive or negative stained cells were well detectable. As a proof-of-concept, we moreover conducted imaging flow cytometry, as a potential high-throughput technology for quantifying chytrid infections. Our guidelines and recommendations are expected to facilitate the detection of chytrid epidemics and to unveil their ecological and economical imprint in natural and engineered aquatic systems.
Published: 2021

24. Design and implementation of an illumination system to mimic skyglow at ecosystem level in a large-scale lake enclosure facility

Author: Jechow, A., Schreck, G., Kyba, C.C.M., Berger, S.A., Bistarelli, L.T., Bodenlos, M., Gessner, M.O., Grossart, H.-P., Kupprat, F., Nejstgaard, J.C., Pansch, A., Penske, A., Sachtleben, M., Shatwell, Thomas, Singer, G.A., Stephan, S., Walles, T.J.W., Wollrab, S., Zielinska-Dabkowska, K., Hölker, F., Jechow, A., Schreck, G., Kyba, C.C.M., Berger, S.A., Bistarelli, L.T., Bodenlos, M., Gessner, M.O., Grossart, H.-P., Kupprat, F., Nejstgaard, J.C., Pansch, A., Penske, A., Sachtleben, M., Shatwell, Thomas, Singer, G.A., Stephan, S., Walles, T.J.W., Wollrab, S., Zielinska-Dabkowska, K., and Hölker, F.
Abstract: Light pollution is an environmental stressor of global extent that is growing exponentially in area and intensity. Artificial skyglow, a form of light pollution with large range, is hypothesized to have environmental impact at ecosystem level. However, testing the impact of skyglow at large scales and in a controlled fashion under in situ conditions has remained elusive so far. Here we present the first experimental setup to mimic skyglow at ecosystem level outdoors in an aquatic environment. Spatially diffuse and homogeneous surface illumination that is adjustable between 0.01 and 10 lx, resembling rural to urban skyglow levels, was achieved with white light-emitting diodes at a large-scale lake enclosure facility. The illumination system was enabled by optical modeling with Monte-Carlo raytracing and validated by measurements. Our method can be adapted to other outdoor and indoor skyglow experiments, urgently needed to understand the impact of skyglow on ecosystems.
Published: 2021

25. Cross-continental importance of CH4 emissions from dry inland-waters

Author: Paranaíba, J.R., Aben, R., Barros, N., Quadra, G., Linkhorst, A., Amado, A.M., Brothers, S., Catalán, N., Condon, J., Finlayson, C.M., Grossart, H.-P., Howitt, J., Oliveira Junior, E.S., Keller, Philipp, Koschorreck, Matthias, Laas, A., Leigh, C., Marcé, R., Mendonça, R., Muniz, C.C., Obrador, B., Onandia, G., Raymundo, D., Reverey, F., Roland, F., Rõõm, E.-I., Sobek, S., von Schiller, D., Wang, H., Kosten, S., Paranaíba, J.R., Aben, R., Barros, N., Quadra, G., Linkhorst, A., Amado, A.M., Brothers, S., Catalán, N., Condon, J., Finlayson, C.M., Grossart, H.-P., Howitt, J., Oliveira Junior, E.S., Keller, Philipp, Koschorreck, Matthias, Laas, A., Leigh, C., Marcé, R., Mendonça, R., Muniz, C.C., Obrador, B., Onandia, G., Raymundo, D., Reverey, F., Roland, F., Rõõm, E.-I., Sobek, S., von Schiller, D., Wang, H., and Kosten, S.
Abstract: Despite substantial advances in quantifying greenhouse gas (GHG) emissions from dry inland waters, existing estimates mainly consist of carbon dioxide (CO2) emissions. However, methane (CH4) may also be relevant due to its higher Global Warming Potential (GWP). We report CH4 emissions from dry inland water sediments to i) provide a cross-continental estimate of such emissions for different types of aquatic systems (i.e., lakes, ponds, reservoirs, and streams) and climate zones (i.e., tropical, continental, and temperate); and ii) determine the environmental factors that control these emissions. CH4 emissions from dry inland waters were consistently higher than emissions observed in adjacent uphill soils, across climate zones and in all aquatic systems except for streams. However, the CH4 contribution (normalized to CO2 equivalents; CO2-eq) to the total GHG emissions of dry inland waters was similar for all types of aquatic systems and varied from 10 to 21%. Although we discuss multiple controlling factors, dry inland water CH4 emissions were most strongly related to sediment organic matter content and moisture. Summing CO2 and CH4 emissions revealed a cross-continental average emission of 9.6 ± 17.4 g CO2-eq m−2 d−1 from dry inland waters. We argue that increasing droughts likely expand the worldwide surface area of atmosphere-exposed aquatic sediments, thereby increasing global dry inland water CH4 emissions. Hence, CH4 cannot be ignored if we want to fully understand the carbon (C) cycle of dry sediments.
Published: 2021

26. Vernetzung und Kooperation ehrenamtlicher und akademischer Forschung im Rahmen des nationalen Biodiversitätsmonitorings: Herausforderungen und Lösungsstrategien. Networking and cooperation of voluntary and academic research within the framework of national biodiversity monitoring – challenges and solution strategies

Author: Sommerwerk, N., Geschke, J., Schliep, R., Esser, J., Glöckler, F., Grossart, H.-P., Hand, R., Kiefer, S., Kimmig, S., Koch, A., Kühn, Elisabeth, Larondelle, N., Lehmann, G., Munzinger, S., Rödl, T., Werner, D., Wessel, M., Vohland, K., Sommerwerk, N., Geschke, J., Schliep, R., Esser, J., Glöckler, F., Grossart, H.-P., Hand, R., Kiefer, S., Kimmig, S., Koch, A., Kühn, Elisabeth, Larondelle, N., Lehmann, G., Munzinger, S., Rödl, T., Werner, D., Wessel, M., and Vohland, K.
Abstract: Die systematische Erfassung und Analyse von Biodiversitätsdaten und Ökosystemleistungen ist unerlässlich. Sie trägt zum Verständnis von Ursachen des Biodiversitätsverlusts bei und wird zur Analyse von Trends sowie zur Evaluierung von Interventionsmaßnahmen und politischen Strategien benötigt. Ehrenamtliche Datenerhebungen und wissenschaftliche Analysen spielen bereits seit Jahrzehnten eine tragende Rolle bei der behördlichen Berichterstattung. In diesem Artikel diskutieren wir, welche Schwachstellen und Optimierungsmöglichkeiten dabei in der Zusammenarbeit zwischen ehrenamtlicher und akademischer Forschung existieren. Eine effiziente und vertrauensvolle Zusammenarbeit an dieser Schnittstelle ist von grundlegender Bedeutung, insbesondere, wenn die auf freiwilliger Basis erhobenen Daten in der akademischen Forschung zu Biodiversität und Naturschutz genutzt werden sollen. Wir stellen zentrale Handlungsfelder und konkrete, praxisrelevante Maßnahmen vor, die wesentlich zur Verbesserung dieser Zusammenarbeit und dem Gelingen des nationalen Biodiversitätsmonitorings beitragen können. Dazu gehören ein gemeinsames Verständnis und Koordination des nationalen Biodiversitätsmonitorings, die Bereitstellung von Ressourcen zur Unterstützung nicht akademischer Forschung, Dateninfrastrukturen und Visualisierungstools, aber auch Bildungsanstrengungen zum Beispiel in Vereinen und Schulen. Networking and cooperation of voluntary and academic research within the framework of national biodiversity monitoring – challenges and solution strategies The systematic collection and analysis of biodiversity data and ecosystem services is essential. It contributes to the understanding of the causes of biodiversity loss and is needed to analyse trends and evaluate intervention measures and policies. Data collection by volunteers and scientific analyses have played a key role in government reporting for decades. In this article, we discuss weaknesses in the cooperation between volunteers and formal
Published: 2021

27. Widespread deoxygenation of temperate lakes

Author: Jane, S, Hansen, G, Kraemer, B, Leavitt, P, Mincer, J, North, R, Pilla, R, Stetler, J, Williamson, C, Woolway, R, Arvola, L, Chandra, S, Degasperi, C, Diemer, L, Dunalska, J, Erina, O, Flaim, G, Grossart, H, Hambright, K, Hein, C, Hejzlar, J, Janus, L, Jenny, J, Jones, J, Knoll, L, Leoni, B, Mackay, E, Matsuzaki, S, Mcbride, C, Muller-Navarra, D, Paterson, A, Pierson, D, Rogora, M, Rusak, J, Sadro, S, Saulnier-Talbot, E, Schmid, M, Sommaruga, R, Thiery, W, Verburg, P, Weathers, K, Weyhenmeyer, G, Yokota, K, Rose, K, Jane S. F., Hansen G. J. A., Kraemer B. M., Leavitt P. R., Mincer J. L., North R. L., Pilla R. M., Stetler J. T., Williamson C. E., Woolway R. I., Arvola L., Chandra S., DeGasperi C. L., Diemer L., Dunalska J., Erina O., Flaim G., Grossart H. -P., Hambright K. D., Hein C., Hejzlar J., Janus L. L., Jenny J. -P., Jones J. R., Knoll L. B., Leoni B., Mackay E., Matsuzaki S. -I. S., McBride C., Muller-Navarra D. C., Paterson A. M., Pierson D., Rogora M., Rusak J. A., Sadro S., Saulnier-Talbot E., Schmid M., Sommaruga R., Thiery W., Verburg P., Weathers K. C., Weyhenmeyer G. A., Yokota K., Rose K. C., Jane, S, Hansen, G, Kraemer, B, Leavitt, P, Mincer, J, North, R, Pilla, R, Stetler, J, Williamson, C, Woolway, R, Arvola, L, Chandra, S, Degasperi, C, Diemer, L, Dunalska, J, Erina, O, Flaim, G, Grossart, H, Hambright, K, Hein, C, Hejzlar, J, Janus, L, Jenny, J, Jones, J, Knoll, L, Leoni, B, Mackay, E, Matsuzaki, S, Mcbride, C, Muller-Navarra, D, Paterson, A, Pierson, D, Rogora, M, Rusak, J, Sadro, S, Saulnier-Talbot, E, Schmid, M, Sommaruga, R, Thiery, W, Verburg, P, Weathers, K, Weyhenmeyer, G, Yokota, K, Rose, K, Jane S. F., Hansen G. J. A., Kraemer B. M., Leavitt P. R., Mincer J. L., North R. L., Pilla R. M., Stetler J. T., Williamson C. E., Woolway R. I., Arvola L., Chandra S., DeGasperi C. L., Diemer L., Dunalska J., Erina O., Flaim G., Grossart H. -P., Hambright K. D., Hein C., Hejzlar J., Janus L. L., Jenny J. -P., Jones J. R., Knoll L. B., Leoni B., Mackay E., Matsuzaki S. -I. S., McBride C., Muller-Navarra D. C., Paterson A. M., Pierson D., Rogora M., Rusak J. A., Sadro S., Saulnier-Talbot E., Schmid M., Sommaruga R., Thiery W., Verburg P., Weathers K. C., Weyhenmeyer G. A., Yokota K., and Rose K. C.
Abstract: The concentration of dissolved oxygen in aquatic systems helps to regulate biodiversity1,2, nutrient biogeochemistry3, greenhouse gas emissions4, and the quality of drinking water5. The long-term declines in dissolved oxygen concentrations in coastal and ocean waters have been linked to climate warming and human activity6,7, but little is known about the changes in dissolved oxygen concentrations in lakes. Although the solubility of dissolved oxygen decreases with increasing water temperatures, long-term lake trajectories are difficult to predict. Oxygen losses in warming lakes may be amplified by enhanced decomposition and stronger thermal stratification8,9 or oxygen may increase as a result of enhanced primary production10. Here we analyse a combined total of 45,148 dissolved oxygen and temperature profiles and calculate trends for 393 temperate lakes that span 1941 to 2017. We find that a decline in dissolved oxygen is widespread in surface and deep-water habitats. The decline in surface waters is primarily associated with reduced solubility under warmer water temperatures, although dissolved oxygen in surface waters increased in a subset of highly productive warming lakes, probably owing to increasing production of phytoplankton. By contrast, the decline in deep waters is associated with stronger thermal stratification and loss of water clarity, but not with changes in gas solubility. Our results suggest that climate change and declining water clarity have altered the physical and chemical environment of lakes. Declines in dissolved oxygen in freshwater are 2.75 to 9.3 times greater than observed in the world’s oceans6,7 and could threaten essential lake ecosystem services2,3,5,11.
Published: 2021

28. The global Microcystis interactome

Author: Steffen, M.M., Hambright, K.D., Grossart, H.-P., Zamor, R.M., Cook, K.V., Padisák, J., Cai, H., Paerl, H.W., Wilson, A.E., Sukenik, A., Krumholz, L.R, Jiang, H., Latour, D., Meyer, E.I., Qin, B., Burford, M.A., Zhu, G., Hamilton, D.P., and Li, C.
Abstract: Bacteria play key roles in the function and diversity of aquatic systems, but aside from study of specific bloom systems, little is known about the diversity or biogeography of bacteria associated with harmful cyanobacterial blooms (cyanoHABs). CyanoHAB species are known to shape bacterial community composition and to rely on functions provided by the associated bacteria, leading to the hypothesized cyanoHAB interactome, a coevolved community of synergistic and interacting bacteria species, each necessary for the success of the others. Here, we surveyed the microbiome associated with Microcystis aeruginosa during blooms in 12 lakes spanning four continents as an initial test of the hypothesized Microcystis interactome. We predicted that microbiome composition and functional potential would be similar across blooms globally. Our results, as revealed by 16S rRNA sequence similarity, indicate that M. aeruginosa is cosmopolitan in lakes across a 280° longitudinal and 90° latitudinal gradient. The microbiome communities were represented by a wide range of operational taxonomic units and relative abundances. Highly abundant taxa were more related and shared across most sites and did not vary with geographic distance, thus, like Microcystis, revealing no evidence for dispersal limitation. High phylogenetic relatedness, both within and across lakes, indicates that microbiome bacteria with similar functional potential were associated with all blooms. While Microcystis and the microbiome bacteria shared many genes, whole-community metagenomic analysis revealed a suite of biochemical pathways that could be considered complementary. Our results demonstrate a high degree of similarity across global Microcystis blooms, thereby providing initial support for the hypothesized Microcystis interactome.
Published: 2020
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29. Variability in epilimnion depth estimations in lakes

Author: Wilson, Harriet L., Ayala, Ana I, Jones, I. D., Rolston, A., Pierson, Don, de Eyto, E., Grossart, H. -P, Perga, M. -E, Woolway, R. I., Jennings, E., Wilson, Harriet L., Ayala, Ana I, Jones, I. D., Rolston, A., Pierson, Don, de Eyto, E., Grossart, H. -P, Perga, M. -E, Woolway, R. I., and Jennings, E.
Abstract: The epilimnion is the surface layer of a lake typically characterised as well mixed and is decoupled from the metalimnion due to a steep change in density. The concept of the epilimnion (and, more widely, the three-layered structure of a stratified lake) is fundamental in limnology, and calculating the depth of the epilimnion is essential to understanding many physical and ecological lake processes. Despite the ubiquity of the term, however, there is no objective or generic approach for defining the epilimnion, and a diverse number of approaches prevail in the literature. Given the increasing availability of water temperature and density profile data from lakes with a high spatio-temporal resolution, automated calculations, using such data, are particularly common, and they have vast potential for use with evolving long-term globally measured and modelled datasets. However, multi-site and multi-year studies, including those related to future climate impacts, require robust and automated algorithms for epilimnion depth estimation. In this study, we undertook a comprehensive comparison of commonly used epilimnion depth estimation methods, using a combined 17-year dataset, with over 4700 daily temperature profiles from two European lakes. Overall, we found a very large degree of variability in the estimated epilimnion depth across all methods and thresholds investigated and for both lakes. These differences, manifesting over high-frequency data, led to fundamentally different understandings of the epilimnion depth. In addition, estimations of the epilimnion depth were highly sensitive to small changes in the threshold value, complex thermal water column structures, and vertical data resolution. These results call into question the custom of arbitrary method selection and the potential problems this may cause for studies interested in estimating the ecological processes occurring within the epilimnion, multi-lake comparisons, or long-term time series analysis. We also i
Published: 2020
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30. Outline of Fungi and fungus-like taxa

Author: Wijayawardene, N. N., Hyde, K. D., Al-Ani, L. K. T., Tedersoo, L., Haelewaters, D., Rajeshkumar, K. C., Zhao, R. L., Aptroot, A., Leontyev, D., V, Saxena, R. K., Tokarev, Y. S., Dai, D. Q., Letcher, P. M., Stephenson, S. L., Ertz, D., Lumbsch, H. T., Kukwa, M., Issi, I., V, Madrid, H., Phillips, A. J. L., Selbmann, L., Pfliegler, W. P., Horvath, E., Bensch, K., Kirk, P. M., Kolarikova, K., Raja, H. A., Radek, R., Papp, V, Dima, B., Ma, J., Malosso, E., Takamatsu, S., Rambold, G., Gannibal, P. B., Triebel, D., Gautam, A. K., Avasthi, S., Suetrong, S., Timdal, E., Fryar, S. C., Delgado, G., Reblova, M., Doilom, M., Dolatabadi, S., Pawlowska, J. Z., Humber, R. A., Kodsueb, R., Sanchez-Castro, I, Goto, B. T., Silva, D. K. A., de Souza, F. A., Oehl, F. R., da Silva, G. A., Silva, I. R., Blaszkowski, J., Jobim, K., Maia, L. C., Barbosa, F. R., Fiuza, P. O., Divakar, P. K., Shenoy, B. D., Castaneda-Ruiz, R. F., Somrithipol, S., Lateef, A. A., Karunarathna, S. C., Tibpromma, S., Mortimer, P. E., Wanasinghe, D. N., Phookamsak, R., Xu, J., Wang, Y., Tian, F., Alvarado, P., Li, D. W., Kusan, I, Matocec, N., Mesic, A., Tkalcec, Z., Maharachchikumbura, S. S. N., Papizadeh, M., Heredia, G., Wartchow, F., Bakhshi, M., Boehm, E., Youssef, N., Hustad, V. P., Lawrey, J. D., Santiago, A. L. C. M. A., Bezerra, J. D. P., Souza-Motta, C. M., Firmino, A. L., Tian, Q., Houbraken, J., Hongsanan, S., Tanaka, K., Dissanayake, A. J., Monteiro, J. S., Grossart, H. P., Suija, A., Weerakoon, G., Etayo, J., Tsurykau, A., Vazquez, V., Mungai, P., Damm, U., Li, Q. R., Zhang, H., Boonmee, S., Lu, Y. Z., Becerra, A. G., Kendrick, B., Brearley, F. Q., Motiejunaite, J., Sharma, B., Khare, R., Gaikwad, S., Wijesundara, D. S. A., Tang, L. Z., He, M. Q., Flakus, A., Rodriguez-Flakus, P., Zhurbenko, M. P., McKenzie, E. H. C., Stadler, M., Bhat, D. J., Liu, J. K., Raza, M., Jeewon, R., Nassonova, E. S., Prieto, M., Jayalal, R. G. U., Erdogdu, M., Yurkov, A., Schnittler, M., Shchepin, O. N., Novozhilov, Y. K., Silva-Filho, A. G. S., Gentekaki, E., Liu, P., Cavender, J. C., Kang, Y., Mohammad, S., Zhang, L. F., Xu, R. F., Li, Y. M., Dayarathne, M. C., Ekanayaka, A. H., Wen, T. C., Deng, C. Y., Pereira, O. L., Navathe, S., Hawksworth, D. L., Fan, X. L., Dissanayake, L. S., Kuhnert, E., Thines, M., Wijayawardene, N. N., Hyde, K. D., Al-Ani, L. K. T., Tedersoo, L., Haelewaters, D., Rajeshkumar, K. C., Zhao, R. L., Aptroot, A., Leontyev, D., V, Saxena, R. K., Tokarev, Y. S., Dai, D. Q., Letcher, P. M., Stephenson, S. L., Ertz, D., Lumbsch, H. T., Kukwa, M., Issi, I., V, Madrid, H., Phillips, A. J. L., Selbmann, L., Pfliegler, W. P., Horvath, E., Bensch, K., Kirk, P. M., Kolarikova, K., Raja, H. A., Radek, R., Papp, V, Dima, B., Ma, J., Malosso, E., Takamatsu, S., Rambold, G., Gannibal, P. B., Triebel, D., Gautam, A. K., Avasthi, S., Suetrong, S., Timdal, E., Fryar, S. C., Delgado, G., Reblova, M., Doilom, M., Dolatabadi, S., Pawlowska, J. Z., Humber, R. A., Kodsueb, R., Sanchez-Castro, I, Goto, B. T., Silva, D. K. A., de Souza, F. A., Oehl, F. R., da Silva, G. A., Silva, I. R., Blaszkowski, J., Jobim, K., Maia, L. C., Barbosa, F. R., Fiuza, P. O., Divakar, P. K., Shenoy, B. D., Castaneda-Ruiz, R. F., Somrithipol, S., Lateef, A. A., Karunarathna, S. C., Tibpromma, S., Mortimer, P. E., Wanasinghe, D. N., Phookamsak, R., Xu, J., Wang, Y., Tian, F., Alvarado, P., Li, D. W., Kusan, I, Matocec, N., Mesic, A., Tkalcec, Z., Maharachchikumbura, S. S. N., Papizadeh, M., Heredia, G., Wartchow, F., Bakhshi, M., Boehm, E., Youssef, N., Hustad, V. P., Lawrey, J. D., Santiago, A. L. C. M. A., Bezerra, J. D. P., Souza-Motta, C. M., Firmino, A. L., Tian, Q., Houbraken, J., Hongsanan, S., Tanaka, K., Dissanayake, A. J., Monteiro, J. S., Grossart, H. P., Suija, A., Weerakoon, G., Etayo, J., Tsurykau, A., Vazquez, V., Mungai, P., Damm, U., Li, Q. R., Zhang, H., Boonmee, S., Lu, Y. Z., Becerra, A. G., Kendrick, B., Brearley, F. Q., Motiejunaite, J., Sharma, B., Khare, R., Gaikwad, S., Wijesundara, D. S. A., Tang, L. Z., He, M. Q., Flakus, A., Rodriguez-Flakus, P., Zhurbenko, M. P., McKenzie, E. H. C., Stadler, M., Bhat, D. J., Liu, J. K., Raza, M., Jeewon, R., Nassonova, E. S., Prieto, M., Jayalal, R. G. U., Erdogdu, M., Yurkov, A., Schnittler, M., Shchepin, O. N., Novozhilov, Y. K., Silva-Filho, A. G. S., Gentekaki, E., Liu, P., Cavender, J. C., Kang, Y., Mohammad, S., Zhang, L. F., Xu, R. F., Li, Y. M., Dayarathne, M. C., Ekanayaka, A. H., Wen, T. C., Deng, C. Y., Pereira, O. L., Navathe, S., Hawksworth, D. L., Fan, X. L., Dissanayake, L. S., Kuhnert, E., and Thines, M.
Published: 2020

31. Global CO2 emissions from dry inland waters share common drivers across ecosystems

Author: Keller, P. S. Catalán, N. von Schiller, D. Grossart, H. P. Koschorreck, M. Obrador, B. Frassl, M. A. Karakaya, N. Barros, N. Howitt, J. A. Mendoza-Lera, C. Pastor, A. Flaim, G. Aben, R. Riis, T. Arce, M. I. Onandia, G. Paranaíba, J. R. Linkhorst, A. del Campo, R. Amado, A. M. Cauvy-Fraunié, S. Brothers, S. Condon, J. Mendonça, R. F. Reverey, F. Rõõm, E. I. Datry, T. Roland, F. Laas, A. Obertegger, U. Park, J. H. Wang, H. Kosten, S. Gómez, R. Feijoó, C. Elosegi, A. Sánchez-Montoya, M. M. Finlayson, C. M. Melita, M. Oliveira Junior, E. S. Muniz, C. C. Gómez-Gener, L. Leigh, C. Zhang, Q. Marcé, R. and Keller, P. S. Catalán, N. von Schiller, D. Grossart, H. P. Koschorreck, M. Obrador, B. Frassl, M. A. Karakaya, N. Barros, N. Howitt, J. A. Mendoza-Lera, C. Pastor, A. Flaim, G. Aben, R. Riis, T. Arce, M. I. Onandia, G. Paranaíba, J. R. Linkhorst, A. del Campo, R. Amado, A. M. Cauvy-Fraunié, S. Brothers, S. Condon, J. Mendonça, R. F. Reverey, F. Rõõm, E. I. Datry, T. Roland, F. Laas, A. Obertegger, U. Park, J. H. Wang, H. Kosten, S. Gómez, R. Feijoó, C. Elosegi, A. Sánchez-Montoya, M. M. Finlayson, C. M. Melita, M. Oliveira Junior, E. S. Muniz, C. C. Gómez-Gener, L. Leigh, C. Zhang, Q. Marcé, R.
Abstract: Many inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sediments are too scarce to upscale emissions for global estimates or to understand their fundamental drivers. Here, we present the results of a global survey covering 196 dry inland waters across diverse ecosystem types and climate zones. We show that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters. CO2 emissions were consistent across ecosystem types and climate zones, with local characteristics explaining much of the variability. Accounting for such emissions increases global estimates of carbon emissions from inland waters by 6% (~0.12 Pg C y−1). Our results indicate that emissions from dry inland waters represent a significant and likely increasing component of the inland waters carbon cycle.
Published: 2020
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32. Clear language for ecosystem management in the Anthropocene: A reply to Bridgewater and Hemming

Author: Heger, T., Bernard-Verdier, M., Gessler, A., Greenwood, A.D., Grossart, H.-P., Hilker, M., Keinath, S., Kowarik, I., Marquard, Elisabeth, Müller, J., Niemeier, S., Onandia, G., Petermann, J.S., Rillig, M.C., Rödel, M.-O., Saul, W.-C., Schittko, C., Tockner, K., Joshi, J., Jeschke, J.M., Heger, T., Bernard-Verdier, M., Gessler, A., Greenwood, A.D., Grossart, H.-P., Hilker, M., Keinath, S., Kowarik, I., Marquard, Elisabeth, Müller, J., Niemeier, S., Onandia, G., Petermann, J.S., Rillig, M.C., Rödel, M.-O., Saul, W.-C., Schittko, C., Tockner, K., Joshi, J., and Jeschke, J.M.
Abstract: no abstract
Published: 2020

33. Global CO2 emissions from dry inland waters share common drivers across ecosystems

Author: Keller, Philipp, Catalán, N., von Schiller, D., Grossart, H.-P., Koschorreck, Matthias, Obrador, B., Frassl, Marieke, Karakaya, N., Barros, N., Howitt, J.A., Mendoza-Lera, C., Pastor, A., Flaim, G., Aben, R., Riis, T., Arce, M.I., Onandia, G., Paranaíba, J.R., Linkhorst, A., del Campo, R., Amado, A.M., Cauvy-Fraunié, S., Brothers, S., Condon, J., Mendonça, R.F., Reverey, F., Rõõm, E.-I., Datry, T., Roland, F., Laas, A., Obertegger, U., Park, J.-H., Wang, H., Kosten, S., Gómez, R., Feijoó, C., Elosegi, A., Sánchez-Montoya, M.M., Finlayson, C.M., Melita, M., Oliveira Junior, E.S., Muniz, C.C., Gómez-Gener, L., Leigh, C., Zhang, Q., Marcé, R., Keller, Philipp, Catalán, N., von Schiller, D., Grossart, H.-P., Koschorreck, Matthias, Obrador, B., Frassl, Marieke, Karakaya, N., Barros, N., Howitt, J.A., Mendoza-Lera, C., Pastor, A., Flaim, G., Aben, R., Riis, T., Arce, M.I., Onandia, G., Paranaíba, J.R., Linkhorst, A., del Campo, R., Amado, A.M., Cauvy-Fraunié, S., Brothers, S., Condon, J., Mendonça, R.F., Reverey, F., Rõõm, E.-I., Datry, T., Roland, F., Laas, A., Obertegger, U., Park, J.-H., Wang, H., Kosten, S., Gómez, R., Feijoó, C., Elosegi, A., Sánchez-Montoya, M.M., Finlayson, C.M., Melita, M., Oliveira Junior, E.S., Muniz, C.C., Gómez-Gener, L., Leigh, C., Zhang, Q., and Marcé, R.
Abstract: Many inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sediments are too scarce to upscale emissions for global estimates or to understand their fundamental drivers. Here, we present the results of a global survey covering 196 dry inland waters across diverse ecosystem types and climate zones. We show that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters. CO2 emissions were consistent across ecosystem types and climate zones, with local characteristics explaining much of the variability. Accounting for such emissions increases global estimates of carbon emissions from inland waters by 6% (~0.12 Pg C y−1). Our results indicate that emissions from dry inland waters represent a significant and likely increasing component of the inland waters carbon cycle.
Published: 2020

34. Storm impacts on phytoplankton community dynamics in lakes

Author: Stockwell, J.D., Doubek, J.P., Adrian, R., Anneville, O., Carey, C.C., Carvalho, L., De Senerpont Domis, L.N., Dur, G., Frassl, M.A., Grossart, H.-P., Ibelings, B.W., Lajeunesse, M.J., Lewandowska, A.M., Llames, M.E., Matsuzaki, S.-I.S., Nodine, E.R., Nõges, P., Patil, V.P., Pomati, F., Rinke, Karsten, Rudstam, L.G., Rusak, J.A., Salmaso, N., Seltmann, C.T., Straile, D., Thackeray, S.J., Thiery, W., Urrutia‐Cordero, P., Venail, P., Verburg, P., Woolway, R.I., Zohary, T., Andersen, M.R., Bhattacharya, R., Hejzlar, J., Janatian, N., Kpodonu, A.T.N.K., Williamson, T.J., Wilson, H.L., Stockwell, J.D., Doubek, J.P., Adrian, R., Anneville, O., Carey, C.C., Carvalho, L., De Senerpont Domis, L.N., Dur, G., Frassl, M.A., Grossart, H.-P., Ibelings, B.W., Lajeunesse, M.J., Lewandowska, A.M., Llames, M.E., Matsuzaki, S.-I.S., Nodine, E.R., Nõges, P., Patil, V.P., Pomati, F., Rinke, Karsten, Rudstam, L.G., Rusak, J.A., Salmaso, N., Seltmann, C.T., Straile, D., Thackeray, S.J., Thiery, W., Urrutia‐Cordero, P., Venail, P., Verburg, P., Woolway, R.I., Zohary, T., Andersen, M.R., Bhattacharya, R., Hejzlar, J., Janatian, N., Kpodonu, A.T.N.K., Williamson, T.J., and Wilson, H.L.
Abstract: In many regions across the globe, extreme weather events such as storms have increased in frequency, intensity, and duration due to climate change. Ecological theory predicts that such extreme events should have large impacts on ecosystem structure and function. High winds and precipitation associated with storms can affect lakes via short‐term runoff events from watersheds and physical mixing of the water column. In addition, lakes connected to rivers and streams will also experience flushing due to high flow rates. Although we have a well‐developed understanding of how wind and precipitation events can alter lake physical processes and some aspects of biogeochemical cycling, our mechanistic understanding of the emergent responses of phytoplankton communities is poor. Here we provide a comprehensive synthesis that identifies how storms interact with lake and watershed attributes and their antecedent conditions to generate changes in lake physical and chemical environments. Such changes can restructure phytoplankton communities and their dynamics, as well as result in altered ecological function (e.g., carbon, nutrient and energy cycling) in the short‐ and long‐term. We summarize the current understanding of storm‐induced phytoplankton dynamics, identify knowledge gaps with a systematic review of the literature, and suggest future research directions across a gradient of lake types and environmental conditions.
Published: 2020

35. Global CO2 emissions from dry inland waters share common drivers across ecosystems

Author: German Research Foundation, Ministerio de Ciencia, Innovación y Universidades (España), Eusko Jaurlaritza, Fundación BBVA, European Research Council, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Carlsberg Foundation, Dutch Research Council, Ministry of Education and Research (Estonia), Estonian Research Council, National Research Foundation of Korea, Federal Ministry of Education and Research (Germany), German Academic Exchange Service, Fundación Séneca, Fundación Ramón Areces, Universidad de Murcia, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), Office français de la biodiversité (France), Agencia Estatal de Investigación (España), European Commission, European Cooperation in Science and Technology, Keller, P S, Catalán, Núria, Von Schiller, D., Grossart, H-P, Koschorreck, M, Obrador, Biel, Frassl, M A, Karakaya, N, Barros, N, Howitt, J A, Mendoza-Lera, Clara, Pastor, Ada, Flaim, G, Aben, R, Riis, T, Arce, M I, Onandía, Gabriela, Paranaíba, J R, Linkhorst, A, del Campo, Rubén, Amado, A M, Cauvy-Fraunié, S, Brothers, S, Condon, J, Mendonça, R F, Reverey, F, Rõõm, E-I, Datry, T, Roland, F, Laas, A, Obertegger, U, Park, J-H, Wang, H, Kosten, S, Gómez, R, Feijoó, C, Elosegi, A, Sánchez-Montoya, María Mar, Finlayson, C M, Melita, M, Oliveira Junior, E S, Muniz, C C, Gómez-Gener, Lluís, Leigh, C, Zhang, Q, Marcé, Rafael, German Research Foundation, Ministerio de Ciencia, Innovación y Universidades (España), Eusko Jaurlaritza, Fundación BBVA, European Research Council, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Carlsberg Foundation, Dutch Research Council, Ministry of Education and Research (Estonia), Estonian Research Council, National Research Foundation of Korea, Federal Ministry of Education and Research (Germany), German Academic Exchange Service, Fundación Séneca, Fundación Ramón Areces, Universidad de Murcia, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), Office français de la biodiversité (France), Agencia Estatal de Investigación (España), European Commission, European Cooperation in Science and Technology, Keller, P S, Catalán, Núria, Von Schiller, D., Grossart, H-P, Koschorreck, M, Obrador, Biel, Frassl, M A, Karakaya, N, Barros, N, Howitt, J A, Mendoza-Lera, Clara, Pastor, Ada, Flaim, G, Aben, R, Riis, T, Arce, M I, Onandía, Gabriela, Paranaíba, J R, Linkhorst, A, del Campo, Rubén, Amado, A M, Cauvy-Fraunié, S, Brothers, S, Condon, J, Mendonça, R F, Reverey, F, Rõõm, E-I, Datry, T, Roland, F, Laas, A, Obertegger, U, Park, J-H, Wang, H, Kosten, S, Gómez, R, Feijoó, C, Elosegi, A, Sánchez-Montoya, María Mar, Finlayson, C M, Melita, M, Oliveira Junior, E S, Muniz, C C, Gómez-Gener, Lluís, Leigh, C, Zhang, Q, and Marcé, Rafael
Abstract: Many inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sediments are too scarce to upscale emissions for global estimates or to understand their fundamental drivers. Here, we present the results of a global survey covering 196 dry inland waters across diverse ecosystem types and climate zones. We show that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters. CO2 emissions were consistent across ecosystem types and climate zones, with local characteristics explaining much of the variability. Accounting for such emissions increases global estimates of carbon emissions from inland waters by 6% (~0.12 Pg C y-1). Our results indicate that emissions from dry inland waters represent a significant and likely increasing component of the inland waters carbon cycle.
Published: 2020

36. Microplastic content of Kutum fish, Rutilus frisii kutum in the southern Caspian Sea

Author: Taghizadeh Rahmat Abadi, Z., primary, Abtahi, B., additional, Grossart, H.-P., additional, and Khodabandeh, S., additional
Published: 2021
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37. Aquatic and terrestrial cyanobacteria produce methane

Author: Bižić, M., primary, Klintzsch, T., additional, Ionescu, D., additional, Hindiyeh, M. Y., additional, Günthel, M., additional, Muro-Pastor, A. M., additional, Eckert, W., additional, Urich, T., additional, Keppler, F., additional, and Grossart, H.-P., additional
Published: 2020
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38. Fluid dynamics around natural marine snow visualized by Particle Image Velocimetry

Author: Flintrop, Clara M., Ahmerkamp, Soeren, Moradi, Nasrollah, Maerz, Joeran, Klawonn, Isabell, Grossart, H. P., Kuypers, Marcel M. M., Khalili, Arzhang, Arístegui, Javier, and Iversen, Morten
Published: 2019

39. Global patterns and drivers of ecosystem functioning in rivers and riparian zones

Author: Tiegs, SD, Costello, DM, Isken, MW, Woodward, G, McIntyre, PB, Gessner, MO, Chauvet, E, Griffiths, NA, Flecker, AS, Acuna, V, Albarino, R, Allen, DC, Alonso, C, Andino, P, Arango, C, Aroviita, J, Barbosa, MVM, Barmuta, LA, Baxter, CV, Bell, TDC, Bellinger, B, Boyero, L, Brown, LE, Bruder, A, Bruesewitz, DA, Burdon, FJ, Callisto, M, Canhoto, C, Capps, KA, Castillo, MM, Clapcott, J, Colas, F, Colon-Gaud, C, Cornut, J, Crespo-Perez, V, Cross, WF, Culp, JM, Danger, M, Dangles, O, de Eyto, E, Derry, AM, Diaz Villanueva, V, Douglas, MM, Elosegi, A, Encalada, AC, Entrekin, S, Espinosa, R, Ethaiya, D, Ferreira, V, Ferriol, C, Flanagan, KM, Fleituch, T, Shah, JJF, Frainer, A, Friberg, N, Frost, PC, Garcia, EA, Lago, LG, Garcia Soto, PE, Ghate, S, Giling, DP, Gilmer, A, Goncalves, JF, Gonzales, RK, Graca, MAS, Grace, M, Grossart, H-P, Guerold, F, Gulis, V, Hepp, LU, Higgins, S, Hishi, T, Huddart, J, Hudson, J, Imberger, S, Iniguez-Armijos, C, Iwata, T, Janetski, DJ, Jennings, E, Kirkwood, AE, Koning, AA, Kosten, S, Kuehn, KA, Laudon, H, Leavitt, PR, Lemes da Silva, AL, Leroux, SJ, Leroy, CJ, Lisi, PJ, MacKenzie, R, Marcarelli, AM, Masese, FO, Mckie, BG, Oliveira Medeiros, A, Meissner, K, Milisa, M, Mishra, S, Miyake, Y, Moerke, A, Mombrikotb, S, Mooney, R, Moulton, T, Muotka, T, Negishi, JN, Neres-Lima, V, Nieminen, ML, Nimptsch, J, Ondruch, J, Paavola, R, Pardo, I, Patrick, CJ, Peeters, ETHM, Pozo, J, Pringle, C, Prussian, A, Quenta, E, Quesada, A, Reid, B, Richardson, JS, Rigosi, A, Rincon, J, Risnoveanu, G, Robinson, CT, Rodriguez-Gallego, L, Royer, TV, Rusak, JA, Santamans, AC, Selmeczy, GB, Simiyu, G, Skuja, A, Smykla, J, Sridhar, KR, Sponseller, R, Stoler, A, Swan, CM, Szlag, D, Teixeira-de Mello, F, Tonkin, JD, Uusheimo, S, Veach, AM, Vilbaste, S, Vought, LBM, Wang, C-P, Webster, JR, Wilson, PB, Woelfl, S, Xenopoulos, MA, Yates, AG, Yoshimura, C, Yule, CM, Zhang, YX, Zwart, JA, Tiegs, SD, Costello, DM, Isken, MW, Woodward, G, McIntyre, PB, Gessner, MO, Chauvet, E, Griffiths, NA, Flecker, AS, Acuna, V, Albarino, R, Allen, DC, Alonso, C, Andino, P, Arango, C, Aroviita, J, Barbosa, MVM, Barmuta, LA, Baxter, CV, Bell, TDC, Bellinger, B, Boyero, L, Brown, LE, Bruder, A, Bruesewitz, DA, Burdon, FJ, Callisto, M, Canhoto, C, Capps, KA, Castillo, MM, Clapcott, J, Colas, F, Colon-Gaud, C, Cornut, J, Crespo-Perez, V, Cross, WF, Culp, JM, Danger, M, Dangles, O, de Eyto, E, Derry, AM, Diaz Villanueva, V, Douglas, MM, Elosegi, A, Encalada, AC, Entrekin, S, Espinosa, R, Ethaiya, D, Ferreira, V, Ferriol, C, Flanagan, KM, Fleituch, T, Shah, JJF, Frainer, A, Friberg, N, Frost, PC, Garcia, EA, Lago, LG, Garcia Soto, PE, Ghate, S, Giling, DP, Gilmer, A, Goncalves, JF, Gonzales, RK, Graca, MAS, Grace, M, Grossart, H-P, Guerold, F, Gulis, V, Hepp, LU, Higgins, S, Hishi, T, Huddart, J, Hudson, J, Imberger, S, Iniguez-Armijos, C, Iwata, T, Janetski, DJ, Jennings, E, Kirkwood, AE, Koning, AA, Kosten, S, Kuehn, KA, Laudon, H, Leavitt, PR, Lemes da Silva, AL, Leroux, SJ, Leroy, CJ, Lisi, PJ, MacKenzie, R, Marcarelli, AM, Masese, FO, Mckie, BG, Oliveira Medeiros, A, Meissner, K, Milisa, M, Mishra, S, Miyake, Y, Moerke, A, Mombrikotb, S, Mooney, R, Moulton, T, Muotka, T, Negishi, JN, Neres-Lima, V, Nieminen, ML, Nimptsch, J, Ondruch, J, Paavola, R, Pardo, I, Patrick, CJ, Peeters, ETHM, Pozo, J, Pringle, C, Prussian, A, Quenta, E, Quesada, A, Reid, B, Richardson, JS, Rigosi, A, Rincon, J, Risnoveanu, G, Robinson, CT, Rodriguez-Gallego, L, Royer, TV, Rusak, JA, Santamans, AC, Selmeczy, GB, Simiyu, G, Skuja, A, Smykla, J, Sridhar, KR, Sponseller, R, Stoler, A, Swan, CM, Szlag, D, Teixeira-de Mello, F, Tonkin, JD, Uusheimo, S, Veach, AM, Vilbaste, S, Vought, LBM, Wang, C-P, Webster, JR, Wilson, PB, Woelfl, S, Xenopoulos, MA, Yates, AG, Yoshimura, C, Yule, CM, Zhang, YX, and Zwart, JA
Abstract: River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.
Published: 2019

40. Global patterns and drivers of ecosystem functioning in rivers and riparian zones

Author: Tiegs, S. D. (Scott D.), Costello, D. M. (David M.), Isken, M. W. (Mark W.), Woodward, G. (Guy), McIntyre, P. B. (Peter B.), Gessner, M. O. (Mark O.), Chauvet, E. (Eric), Griffiths, N. A. (Natalie A.), Flecker, A. S. (Alex S.), Acuna, V. (Vicenc), Albarino, R. (Ricardo), Allen, D. C. (Daniel C.), Alonso, C. (Cecilia), Andino, P. (Patricio), Arango, C. (Clay), Aroviita, J. (Jukka), Barbosa, M. V. (Marcus V. M.), Barmuta, L. A. (Leon A.), Baxter, C. V. (Colden V.), Bell, T. D. (Thomas D. C.), Bellinger, B. (Brent), Boyero, L. (Luz), Brown, L. E. (Lee E.), Bruder, A. (Andreas), Bruesewitz, D. A. (Denise A.), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Castillo, M. M. (Maria M.), Clapcott, J. (Joanne), Colas, F. (Fanny), Colon-Gaud, C. (Checo), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Culp, J. M. (Joseph M.), Danger, M. (Michael), Dangles, O. (Olivier), de Eyto, E. (Elvira), Derry, A. M. (Alison M.), Diaz Villanueva, V. (Veronica), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), Entrekin, S. (Sally), Espinosa, R. (Rodrigo), Ethaiya, D. (Diana), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Flanagan, K. M. (Kyla M.), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Friberg, N. (Nikolai), Frost, P. C. (Paul C.), Garcia, E. A. (Erica A.), Lago, L. G. (Liliana Garcia), Garcia Soto, P. E. (Pavel Ernesto), Ghate, S. (Sudeep), Giling, D. P. (Darren P.), Gilmer, A. (Alan), Goncalves, J. F. (Jose Francisco, Jr.), Gonzales, R. K. (Rosario Karina), Graca, M. A. (Manuel A. S.), Grace, M. (Mike), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Gulis, V. (Vlad), Hepp, L. U. (Luiz U.), Higgins, S. (Scott), Hishi, T. (Takuo), Huddart, J. (Joseph), Hudson, J. (John), Imberger, S. (Samantha), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Janetski, D. J. (David J.), Jennings, E. (Eleanor), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Kuehn, K. A. (Kevin A.), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), Leroy, C. J. (Carri J.), Lisi, P. J. (Peter J.), MacKenzie, R. (Richard), Marcarelli, A. M. (Amy M.), Masese, F. O. (Frank O.), Mckie, B. G. (Brendan G.), Oliveira Medeiros, A. (Adriana), Meissner, K. (Kristian), Milisa, M. (Marko), Mishra, S. (Shailendra), Miyake, Y. (Yo), Moerke, A. (Ashley), Mombrikotb, S. (Shorok), Mooney, R. (Rob), Moulton, T. (Tim), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Neres-Lima, V. (Vinicius), Nieminen, M. L. (Mika L.), Nimptsch, J. (Jorge), Ondruch, J. (Jakub), Paavola, R. (Riku), Pardo, I. (Isabel), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Pringle, C. (Catherine), Prussian, A. (Aaron), Quenta, E. (Estefania), Quesada, A. (Antonio), Reid, B. (Brian), Richardson, J. S. (John S.), Rigosi, A. (Anna), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Rodriguez-Gallego, L. (Lorena), Royer, T. V. (Todd V.), Rusak, J. A. (James A.), Santamans, A. C. (Anna C.), Selmeczy, G. B. (Geza B.), Simiyu, G. (Gelas), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sridhar, K. R. (Kandikere R.), Sponseller, R. (Ryan), Stoler, A. (Aaron), Swan, C. M. (Christopher M.), Szlag, D. (David), Teixeira-de Mello, F. (Franco), Tonkin, J. D. (Jonathan D.), Uusheimo, S. (Sari), Veach, A. M. (Allison M.), Vilbaste, S. (Sirje), Vought, L. B. (Lena B. M.), Wang, C.-P. (Chiao-Ping), Webster, J. R. (Jackson R.), Wilson, P. B. (Paul B.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yoshimura, C. (Chihiro), Yule, C. M. (Catherine M.), Zhang, Y. X. (Yixin X.), Zwart, J. A. (Jacob A.), Tiegs, S. D. (Scott D.), Costello, D. M. (David M.), Isken, M. W. (Mark W.), Woodward, G. (Guy), McIntyre, P. B. (Peter B.), Gessner, M. O. (Mark O.), Chauvet, E. (Eric), Griffiths, N. A. (Natalie A.), Flecker, A. S. (Alex S.), Acuna, V. (Vicenc), Albarino, R. (Ricardo), Allen, D. C. (Daniel C.), Alonso, C. (Cecilia), Andino, P. (Patricio), Arango, C. (Clay), Aroviita, J. (Jukka), Barbosa, M. V. (Marcus V. M.), Barmuta, L. A. (Leon A.), Baxter, C. V. (Colden V.), Bell, T. D. (Thomas D. C.), Bellinger, B. (Brent), Boyero, L. (Luz), Brown, L. E. (Lee E.), Bruder, A. (Andreas), Bruesewitz, D. A. (Denise A.), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Castillo, M. M. (Maria M.), Clapcott, J. (Joanne), Colas, F. (Fanny), Colon-Gaud, C. (Checo), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Culp, J. M. (Joseph M.), Danger, M. (Michael), Dangles, O. (Olivier), de Eyto, E. (Elvira), Derry, A. M. (Alison M.), Diaz Villanueva, V. (Veronica), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), Entrekin, S. (Sally), Espinosa, R. (Rodrigo), Ethaiya, D. (Diana), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Flanagan, K. M. (Kyla M.), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Friberg, N. (Nikolai), Frost, P. C. (Paul C.), Garcia, E. A. (Erica A.), Lago, L. G. (Liliana Garcia), Garcia Soto, P. E. (Pavel Ernesto), Ghate, S. (Sudeep), Giling, D. P. (Darren P.), Gilmer, A. (Alan), Goncalves, J. F. (Jose Francisco, Jr.), Gonzales, R. K. (Rosario Karina), Graca, M. A. (Manuel A. S.), Grace, M. (Mike), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Gulis, V. (Vlad), Hepp, L. U. (Luiz U.), Higgins, S. (Scott), Hishi, T. (Takuo), Huddart, J. (Joseph), Hudson, J. (John), Imberger, S. (Samantha), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Janetski, D. J. (David J.), Jennings, E. (Eleanor), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Kuehn, K. A. (Kevin A.), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), Leroy, C. J. (Carri J.), Lisi, P. J. (Peter J.), MacKenzie, R. (Richard), Marcarelli, A. M. (Amy M.), Masese, F. O. (Frank O.), Mckie, B. G. (Brendan G.), Oliveira Medeiros, A. (Adriana), Meissner, K. (Kristian), Milisa, M. (Marko), Mishra, S. (Shailendra), Miyake, Y. (Yo), Moerke, A. (Ashley), Mombrikotb, S. (Shorok), Mooney, R. (Rob), Moulton, T. (Tim), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Neres-Lima, V. (Vinicius), Nieminen, M. L. (Mika L.), Nimptsch, J. (Jorge), Ondruch, J. (Jakub), Paavola, R. (Riku), Pardo, I. (Isabel), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Pringle, C. (Catherine), Prussian, A. (Aaron), Quenta, E. (Estefania), Quesada, A. (Antonio), Reid, B. (Brian), Richardson, J. S. (John S.), Rigosi, A. (Anna), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Rodriguez-Gallego, L. (Lorena), Royer, T. V. (Todd V.), Rusak, J. A. (James A.), Santamans, A. C. (Anna C.), Selmeczy, G. B. (Geza B.), Simiyu, G. (Gelas), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sridhar, K. R. (Kandikere R.), Sponseller, R. (Ryan), Stoler, A. (Aaron), Swan, C. M. (Christopher M.), Szlag, D. (David), Teixeira-de Mello, F. (Franco), Tonkin, J. D. (Jonathan D.), Uusheimo, S. (Sari), Veach, A. M. (Allison M.), Vilbaste, S. (Sirje), Vought, L. B. (Lena B. M.), Wang, C.-P. (Chiao-Ping), Webster, J. R. (Jackson R.), Wilson, P. B. (Paul B.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yoshimura, C. (Chihiro), Yule, C. M. (Catherine M.), Zhang, Y. X. (Yixin X.), and Zwart, J. A. (Jacob A.)
Abstract: River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.
Published: 2019

41. Distinct nitrogen cycling and steep chemical gradients in Trichodesmium colonies

Author: Klawonn, I., Eichner, M.J., Wilson, S.T., Moradi, N., Thamdrup, B., Kümmel, Steffen, Gehre, Matthias, Khalili, A., Grossart, H.-P., Karl, D.M., Ploug, H., Klawonn, I., Eichner, M.J., Wilson, S.T., Moradi, N., Thamdrup, B., Kümmel, Steffen, Gehre, Matthias, Khalili, A., Grossart, H.-P., Karl, D.M., and Ploug, H.
Abstract: Trichodesmium is an important dinitrogen (N2)-fixing cyanobacterium in marine ecosystems. Recent nucleic acid analyses indicate that Trichodesmium colonies with their diverse epibionts support various nitrogen (N) transformations beyond N2 fixation. However, rates of these transformations and concentration gradients of N compounds in Trichodesmium colonies remain largely unresolved. We combined isotope-tracer incubations, micro-profiling and numeric modelling to explore carbon fixation, N cycling processes as well as oxygen, ammonium and nitrate concentration gradients in individual field-sampled Trichodesmium colonies. Colonies were net-autotrophic, with carbon and N2 fixation occurring mostly during the day. Ten percent of the fixed N was released as ammonium after 12-h incubations. Nitrification was not detectable but nitrate consumption was high when nitrate was added. The consumed nitrate was partly reduced to ammonium, while denitrification was insignificant. Thus, the potential N transformation network was characterised by fixed N gain and recycling processes rather than denitrification. Oxygen concentrations within colonies were ~60–200% air-saturation. Moreover, our modelling predicted steep concentration gradients, with up to 6-fold higher ammonium concentrations, and nitrate depletion in the colony centre compared to the ambient seawater. These gradients created a chemically heterogeneous microenvironment, presumably facilitating diverse microbial metabolisms in millimetre-sized Trichodesmium colonies.
Published: 2019

42. Towards an integrative, eco-evolutionary understanding of ecological novelty: Studying and communicating interlinked effects of global change

Author: Heger, T., Bernard-Verdier, M., Gessler, A., Greenwood, A.D., Grossart, H.-P., Hilker, M., Keinath, S., Kowarik, I., Kueffer, C., Marquard, Elisabeth, Müller, J., Niemeier, S., Onandia, G., Petermann, J.S., Rillig, M.C., Rödel, M.-O., Saul, W.-C., Schittko, C., Tockner, K., Joshi, J., Jeschke, J.M., Heger, T., Bernard-Verdier, M., Gessler, A., Greenwood, A.D., Grossart, H.-P., Hilker, M., Keinath, S., Kowarik, I., Kueffer, C., Marquard, Elisabeth, Müller, J., Niemeier, S., Onandia, G., Petermann, J.S., Rillig, M.C., Rödel, M.-O., Saul, W.-C., Schittko, C., Tockner, K., Joshi, J., and Jeschke, J.M.
Abstract: Global change has complex eco-evolutionary consequences for organisms and ecosystems, but related concepts (e.g., novel ecosystems) do not cover their full range. Here we propose an umbrella concept of “ecological novelty” comprising (1) a site-specific and (2) an organism-centered, eco-evolutionary perspective. Under this umbrella, complementary options for studying and communicating effects of global change on organisms, ecosystems, and landscapes can be included in a toolbox. This allows researchers to address ecological novelty from different perspectives, e.g., by defining it based on (a) categorical or continuous measures, (b) reference conditions related to sites or organisms, and (c) types of human activities. We suggest striving for a descriptive, non-normative usage of the term “ecological novelty” in science. Normative evaluations and decisions about conservation policies or management are important, but require additional societal processes and engagement with multiple stakeholders.
Published: 2019

43. Linking stream microbial community functional genes to dissolved organic matter and inorganic nutrients

Author: Fasching, Christina, Akotoye, C., Bižić, M., Fonvielle, J., Ionescu, D., Mathavarajah, S., Zoccarato, L., Walsh, D.A., Grossart, H.-P., Xenopoulos, M.A., Fasching, Christina, Akotoye, C., Bižić, M., Fonvielle, J., Ionescu, D., Mathavarajah, S., Zoccarato, L., Walsh, D.A., Grossart, H.-P., and Xenopoulos, M.A.
Abstract: There is now increasing evidence for the importance of microbial regulation of biogeochemical cycling in streams. Resource availability shapes microbial community structure, but less is known about how landscape‐mediated availability of nutrients and carbon can control microbial functions in streams. Using comparative metagenomics, we examined the relationship between microbial functional genes and composition of dissolved organic matter (DOM), nutrients, and suspended microbial communities in 11 streams, divided into three groups based on the predominant land cover category (agriculture, forested, or wetland). Using weighted gene co‐occurrence network analysis, we identified clusters of functions related to DOM composition, agricultural land use, and/or wetland and forest land cover. Wetland‐dominated streams were characterized by functions related to nitrogen metabolism and processing of aromatic carbon compounds, with strong positive correlations with dissolved organic carbon concentration and DOM aromaticity. Forested streams were characterized by metabolic functions related to monomer uptake and carbohydrates, such as mannose and fructose metabolism. In agricultural streams, microbial functions were correlated with more labile, protein‐like DOM, PO4, and NO3, likely reflecting functional adaptation to labile DOM and higher nutrient concentrations. Distinct changes in the functional composition and loss of functional diversity of microorganisms became evident when comparing natural to agricultural catchments. Although all streams showed signs of functional redundancy, loss of species richness per function in agricultural catchments suggests that microbial functions in natural catchments may be more resilient to disturbance. Our results provide new insight into microbial community functions involved in nutrient and carbon biogeochemical cycles and their dependence on specific environmental settings.
Published: 2019

44. Integrating aquatic and terrestrial perspectives to improve insights into organic matter cycling at the landscape scale

Author: Kayler, Z.E., Premke, K., Gessler, A., Gessner, M.O., Griebler, C., Hilt, S., Klemedtsson, L., Kuzyakov, Y., Reichstein, M., Siemens, J., Totsche, K.-U., Tranvik, L., Wagner, A., Weitere, Markus, Grossart, H.-P., Kayler, Z.E., Premke, K., Gessler, A., Gessner, M.O., Griebler, C., Hilt, S., Klemedtsson, L., Kuzyakov, Y., Reichstein, M., Siemens, J., Totsche, K.-U., Tranvik, L., Wagner, A., Weitere, Markus, and Grossart, H.-P.
Abstract: Across a landscape, aquatic-terrestrial interfaces within and between ecosystems are hotspots of organic matter (OM) mineralization. These interfaces are characterized by sharp spatio-temporal changes in environmental conditions, which affect OM properties and thus control OM mineralization and other transformation processes. Consequently, the extent of OM movement at and across aquatic-terrestrial interfaces is crucial in determining OM turnover and carbon (C) cycling at the landscape scale. Here, we propose expanding current concepts in aquatic and terrestrial ecosystem sciences to comprehensively evaluate OM turnover at the landscape scale. We focus on three main concepts toward explaining OM turnover at the landscape scale: the landscape spatio-temporal context, OM turnover described by priming and ecological stoichiometry, and anthropogenic effects as a disruptor of natural OM transfer magnitudes and pathways. A conceptual framework is introduced that allows for discussing the disparities in spatial and temporal scales of OM transfer, changes in environmental conditions, ecosystem connectivity, and microbial–substrate interactions. The potential relevance of priming effects in both terrestrial and aquatic systems is addressed. For terrestrial systems, we hypothesize that the interplay between the influx of OM, its corresponding elemental composition, and the elemental demand of the microbial communities may alleviate spatial and metabolic thresholds. In comparison, substrate level OM dynamics may be substantially different in aquatic systems due to matrix effects that accentuate the role of abiotic conditions, substrate quality, and microbial community dynamics. We highlight the disproportionate impact anthropogenic activities can have on OM cycling across the landscape. This includes reversing natural OM flows through the landscape, disrupting ecosystem connectivity, and nutrient additions that cascade across the landscape. This knowledge is crucial for a bett
Published: 2019

45. ASLO activities focus on meeting the needs of early career members

Author: Salk, K.R., Fink, Patrick, Filstrup, C.T., Rose, K.C., Grossart, H.-P., Salk, K.R., Fink, Patrick, Filstrup, C.T., Rose, K.C., and Grossart, H.-P.
Abstract: Early career scientists face an evolving and rapidly changing world of scientific careers. Today, early career researchers compete in the job market with the largest group of new PhDs in history, work in an increasingly interdisciplinary and variable international setting, and contend with massive changes to the structure of both academic and nonacademic careers. In contrast to earlier times, scientific careers are much more diversified and do not follow a single concept anymore. The ASLO Early Career Committee, made up of a selection of early and mid‐career members of ASLO, is working to help prepare early career aquatic scientists for these multiple and often confusing challenges and demands.
Published: 2019

46. Effects of CO2 perturbation on phosphorus pool sizes and uptake in a mesocosm experiment during a low productive summer season in the northern Baltic Sea

Author: Nausch, M., Bach, Lennart T., Czerny, Jan, Goldstein, J., Grossart, H. P., Hellemann, Dana, Hornick, T., Achterberg, Eric P., Schulz, Kai G., Riebesell, Ulf, Environmental Sciences, Tvärminne Zoological Station, Aquatic Biogeochemistry Research Unit (ABRU), and Marine Ecosystems Research Group
Subjects: 1171 Geosciences, EASTERN GOTLAND BASIN, FILAMENTOUS CYANOBACTERIA, NODULARIA SPUMIGENA, SEAWATER, lcsh:QE1-996.5, OCEAN ACIDIFICATION, lcsh:Life, PEECE-III, lcsh:Geology, lcsh:QH501-531, ORGANIC-MATTER, lcsh:QH540-549.5, PCO(2) LEVELS, lcsh:Ecology, NITROGEN-FIXATION, ELEVATED CO2, 1172 Environmental sciences, Institut für Biochemie und Biologie
Abstract: Studies investigating the effect of increasing CO2 levels on the phosphorus cycle in natural waters are lacking although phosphorus often controls phytoplankton development in many aquatic systems. The aim of our study was to analyse effects of elevated CO2 levels on phosphorus pool sizes and uptake. The phosphorus dynamic was followed in a CO2-manipulation mesocosm experiment in the Storfjärden (western Gulf of Finland, Baltic Sea) in summer 2012 and was also studied in the surrounding fjord water. In all mesocosms as well as in surface waters of Storfjärden, dissolved organic phosphorus (DOP) concentrations of 0.26 ± 0.03 and 0.23 ± 0.04 µmol L−1, respectively, formed the main fraction of the total P-pool (TP), whereas phosphate (PO4) constituted the lowest fraction with mean concentration of 0.15 ± 0.02 in the mesocosms and 0.17 ± 0.07 µmol L−1 in the fjord. Transformation of PO4 into DOP appeared to be the main pathway of PO4 turnover. About 82 % of PO4 was converted into DOP whereby only 18 % of PO4 was transformed into particulate phosphorus (PP). PO4 uptake rates measured in the mesocosms ranged between 0.6 and 3.9 nmol L−1 h−1. About 86 % of them was realized by the size fraction 4 only. CO2 additions did not cause significant changes in phosphorus (P) pool sizes, DOP composition, and uptake of PO4 and ATP when the whole study period was taken into account. However, significant short-term effects were observed for PO4 and PP pool sizes in CO2 treatments > 1000 µatm during periods when phytoplankton biomass increased. In addition, we found significant relationships (e.g., between PP and Chl a) in the untreated mesocosms which were not observed under high fCO2 conditions. Consequently, it can be hypothesized that the relationship between PP formation and phytoplankton growth changed with CO2 elevation. It can be deduced from the results, that visible effects of CO2 on P pools are coupled to phytoplankton growth when the transformation of PO4 into POP was stimulated. The transformation of PO4 into DOP on the other hand does not seem to be affected. Additionally, there were some indications that cellular mechanisms of P regulation might be modified under CO2 elevation changing the relationship between cellular constituents.
Published: 2018

47. Availability of phosphate for phytoplankton and bacteria and of glucose for bacteria at different pCO2 levels in a mesocosm study

Author: Tanaka, T., Thingstad, T. F., Løvdal, T., Grossart, H.-P., Larsen, A., Allgaier, M., Meyerhöfer, M., Schulz, K. G., Wohlers, J., Zöllner, E., and Riebesell, U.
Abstract: Availability of phosphate for phytoplankton and bacteria and of glucose for bacteria at different pCO2 levels were studied in a mesocosm experiment (PeECE III). Using nutrient-depleted SW Norwegian fjord waters, three different levels of pCO2 (350 μatm: 1×CO2; 700 μatm: 2×CO2; 1050 μatm: 3×CO2) were set up, and nitrate and phosphate were added at the start of the experiment in order to induce a phytoplankton bloom. Despite similar responses of total particulate P concentration and phosphate turnover time at the three different pCO2 levels, the size distribution of particulate P and 33PO4 uptake suggested that phosphate transferred to the >10 μm fraction was greater in the 3×CO2 mesocosm during the first 6–10 days when phosphate concentration was high. During the period of phosphate depletion (after Day 12), specific phosphate affinity and specific alkaline phosphatase activity (APA) suggested a P-deficiency (i.e. suboptimal phosphate supply) rather than a P-limitation for the phytoplankton and bacterial community at the three different pCO2 levels. Specific phosphate affinity and specific APA tended to be higher in the 3×CO2 than in the 2×CO2 and 1×CO2 mesocosms during the phosphate depletion period, although no statistical differences were found. Glucose turnover time was correlated significantly and negatively with bacterial abundance and production but not with the bulk DOC concentration. This suggests that even though constituting a small fraction of the bulk DOC, glucose was an important component of labile DOC for bacteria. Specific glucose affinity of bacteria behaved similarly at the three different pCO2 levels with measured specific glucose affinities being consistently much lower than the theoretical maximum predicted from the diffusion-limited model. This suggests that bacterial growth was not severely limited by the glucose availability. Hence, it seems that the lower availability of inorganic nutrients after the phytoplankton bloom reduced the bacterial capacity to consume labile DOC in the upper mixed layer of the stratified mesocosms.
Published: 2018

48. Environmental drivers of free-living vs. particle-attached bacterial community composition in the Mauritania upwelling system

Author: Bachmann, Jennifer, Heimbach, Tabea, Hassenrück, Christiane, Kopprio, Germán A., Iversen, Morten, Grossart, H. P., Gärdes, A., Bachmann, Jennifer, Heimbach, Tabea, Hassenrück, Christiane, Kopprio, Germán A., Iversen, Morten, Grossart, H. P., and Gärdes, A.
Published: 2018

49. Increasing Iron Concentrations

Author: Björnerås, C., Weyhenmeyer, G. A., Evans, C. D., Gessner, M. O., Grossart, H.-P., Kangur, K., Kokorite, I., Kortelainen, P., Laudon, H., Lehtoranta, J., Lottig, N., Monteith, D. T., Nõges, P., Nõges, T., Oulehle, F., Riise, G., Rusak, J. A., Räike, A., Sire, J., Sterling, S., and Kritzberg, E. S.
Subjects: browning, trends, climate change, iron, Geochemistry, freshwaters, Geokemi, Institut für Biochemie und Biologie, Ecology and Environment
Abstract: Recent reports of increasing iron (Fe) concentrations in freshwaters are of concern, given the fundamental role of Fe in biogeochemical processes. Still, little is known about the frequency and geographical distribution of Fe trends or about the underlying drivers. We analyzed temporal trends of Fe concentrations across 340 water bodies distributed over 10 countries in northern Europe and North America in order to gain a clearer understanding of where, to what extent, and why Fe concentrations are on the rise. We found that Fe concentrations have significantly increased in 28% of sites, and decreased in 4%, with most positive trends located in northern Europe. Regions with rising Fe concentrations tend to coincide with those with organic carbon (OC) increases. Fe and OC increases may not be directly mechanistically linked, but may nevertheless be responding to common regional-scale drivers such as declining sulfur deposition or hydrological changes. A role of hydrological factors was supported by covarying trends in Fe and dissolved silica, as these elements tend to stem from similar soil depths. A positive relationship between Fe increases and conifer cover suggests that changing land use and expanded forestry could have contributed to enhanced Fe export, although increases were also observed in nonforested areas. We conclude that the phenomenon of increasing Fe concentrations is widespread, especially in northern Europe, with potentially significant implications for wider ecosystem biogeochemistry, and for the current browning of freshwaters.
Published: 2017

50. Ocean acidification impacts bacteria – phytoplankton coupling at low-nutrient conditions

Author: Hornick, T., Bach, L.T., Crawfurd, K.J., Spilling, K., Achterberg, E.P., Woodhouse, J.N., Schulz, K.G., Brussaard, C.P.D., Riebesell, U., Grossart, H.-P., and Freshwater and Marine Ecology (IBED, FNWI)
Subjects: fungi
Abstract: The oceans absorb about a quarter of the annually produced anthropogenic atmospheric carbon dioxide (CO2), resulting in a decrease in surface water pH, a process termed ocean acidification (OA). Surprisingly little is known about how OA affects the physiology of heterotrophic bacteria or the coupling of heterotrophic bacteria to phytoplankton when nutrients are limited. Previous experiments were, for the most part, undertaken during productive phases or following nutrient additions designed to stimulate algal blooms. Therefore, we performed an in situ large-volume mesocosm ( ∼ 55m3) experiment in the Baltic Sea by simulating different fugacities of CO2 (fCO2) extending from present to future conditions. The study was conducted in July–August after the nominal spring bloom, in order to maintain low-nutrient conditions throughout the experiment. This resulted in phytoplankton communities dominated by small-sized functional groups (picophytoplankton). There was no consistent fCO2-induced effect on bacterial protein production (BPP), cell-specific BPP (csBPP) or biovolumes (BVs) of either free-living (FL) or particle-associated (PA) heterotrophic bacteria, when considered as individual components (univariate analyses). Permutational Multivariate Analysis of Variance (PERMANOVA) revealed a significant effect of the fCO2 treatment on entire assemblages of dissolved and particulate nutrients, metabolic parameters and the bacteria–phytoplankton community. However, distance-based linear modelling only identified fCO2 as a factor explaining the variability observed amongst the microbial community composition, but not for explaining variability within the metabolic parameters. This suggests that fCO2 impacts on microbial metabolic parameters occurred indirectly through varying physicochemical parameters and microbial species composition. Cluster analyses examining the co-occurrence of different functional groups of bacteria and phytoplankton further revealed a separation of the four fCO2-treated mesocosms from both control mesocosms, indicating that complex trophic interactions might be altered in a future acidified ocean. Possible consequences for nutrient cycling and carbon export are still largely unknown, in particular in a nutrient-limited ocean.
Published: 2017

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