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4. Co-occurrence of native and invasive macroalgae might be facilitated under global warming

Author

Bommarito, Claudia, Noè, S., Díaz-Morales, D.M., Lukić, I., Hiebenthal, Claas, Rilov, G., Guy-Haim, Tamar, Wahl, Martin, Bommarito, Claudia, Noè, S., Díaz-Morales, D.M., Lukić, I., Hiebenthal, Claas, Rilov, G., Guy-Haim, Tamar, and Wahl, Martin

Abstract

Climate change is driving compositional shifts in ecological communities directly by affecting species and indirectly through changes in species interactions. For example, competitive hierarchies can be inversed when competitive dominants are more susceptible to climate change. The brown seaweed Fucus vesiculosus is a foundation species in the Baltic Sea, experiencing novel interactions with the invasive red seaweed Gracilaria vermiculophylla, which is known for its high tolerance to environmental stress. We investigated the direct and interactive effects of warming and co-occurrence of the two algal species on their performance, by applying four climate change-relevant temperature scenarios: 1) cooling ) 2 °C below ambient – representing past conditions), 2) ambient summer temperature (18 °C), 3) IPCC RCP2.6 warming scenario (1 °C above ambient), and 4) RCP8.5 warming (3 °C above ambient) for 30 days and two compositional levels (mono and co-cultured algae) in a fully-crossed design. The RCP8.5 warming scenario increased photosynthesis, respiration, and nutrients' uptake rates of mono- and co-cultured G. vermiculophylla while growth was reduced. An increase in photosynthesis and essential nutrients' uptake and, at the same time, a growth reduction might result from increasing stress and energy demand of G. vermiculophylla under warming. In contrast, the growth of mono-cultured F. vesiculosus significantly increased in the highest warming treatment (+3 °C). The cooling treatment (−2 °C) exerted a slight negative effect only on co-cultured F. vesiculosus photosynthesis, compared to the ambient treatment. Interestingly, at ambient and warming (RCP2.6 and RCP8.5 scenarios) treatments, both F. vesiculosus and G. vermiculophylla appear to benefit from the presence of each other. Our results suggest that short exposure of F. vesiculosus to moderate or severe global warming scenarios may not directly affect or even slightly enhance its performance, while G. vermiculophylla

Published
2024
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6. Distribution, health and threats to Mediterranean macroalgal forests: defining the baselines for their conservation and restoration

Author

Verdura, J, Rehues, L, Mangialajo, L, Fraschetti, S, Belattmania, Z, Bianchelli, S, Blanfune, A, Sabour, B, Chiarore, A, Danovaro, R, Fabbrizzi, E, Giakoumi, S, Ivesa, L, Katsanevakis, S, Kytinou, E, Nasto, I, Nikolaou, A, Orfanidis, S, Rilov, G, Rindi, F, Sales, M, Sini, M, Tamburello, L, Thibaut, T, Tsirintanis, K, Cebrian, E, Verdura J., Rehues L., Mangialajo L., Fraschetti S., Belattmania Z., Bianchelli S., Blanfune A., Sabour B., Chiarore A., Danovaro R., Fabbrizzi E., Giakoumi S., Ivesa L., Katsanevakis S., Kytinou E., Nasto I., Nikolaou A., Orfanidis S., Rilov G., Rindi F., Sales M., Sini M., Tamburello L., Thibaut T., Tsirintanis K., Cebrian E., Verdura, J, Rehues, L, Mangialajo, L, Fraschetti, S, Belattmania, Z, Bianchelli, S, Blanfune, A, Sabour, B, Chiarore, A, Danovaro, R, Fabbrizzi, E, Giakoumi, S, Ivesa, L, Katsanevakis, S, Kytinou, E, Nasto, I, Nikolaou, A, Orfanidis, S, Rilov, G, Rindi, F, Sales, M, Sini, M, Tamburello, L, Thibaut, T, Tsirintanis, K, Cebrian, E, Verdura J., Rehues L., Mangialajo L., Fraschetti S., Belattmania Z., Bianchelli S., Blanfune A., Sabour B., Chiarore A., Danovaro R., Fabbrizzi E., Giakoumi S., Ivesa L., Katsanevakis S., Kytinou E., Nasto I., Nikolaou A., Orfanidis S., Rilov G., Rindi F., Sales M., Sini M., Tamburello L., Thibaut T., Tsirintanis K., and Cebrian E.

Abstract

The worldwide decline of macroalgal forests is raising major concerns for the potentially negative consequences on biodiversity and ecosystem functions, pushing for the definition of specific conservation and restoration measures. Protecting and restoring these habitats requires detailed information on their distribution, ecological status, and drivers of decline. Here, we provide the most updated available information on the distribution of Mediterranean Cystoseira s.l. forests by conducting a comprehensive bibliographic survey of literature published from 2009 to 2021, complemented by unpublished data. We also provide insights into the ecological status of these forests and the stressors affecting them across the Mediterranean basin. Our results show that most Mediterranean coasts remain un(der)studied and that the available information is concentrated in spatially limited coastal areas, restricted to very few species. When the ecological status is reported, data is highly heterogeneous, making any comparisons problematic, what claims for the description and use of easy and standardized monitoring methods for comparative purposes. Drivers of decline of Cystoseira s.l. forest have been even less investigated and, therefore, still poorly characterized. Our results highlight that our current knowledge is still insufficient to implement effective conservation and restoration strategies at the basin scale but also regionally. We call for the urgent need for mapping and standardized monitoring of Cystoseira s.l. forests to obtain baseline information for future management strategies involving their conservation, the mitigation of the stressors threatening them and the restoration of the degraded forests.

Published
2023

10. Mediterranean rocky reefs in the Anthropocene: Present status and future concerns

Author

Bevilacqua, S., Airoldi, L., Ballesteros, E., Benedetti-Cecchi, L., Boero, F., Bulleri, F., Cebrian, E., Cerrano, C., Claudet, J., Colloca, F., Coppari, M., Di Franco, A., Fraschetti, S., Garrabou, J., Guarnieri, G., Guerranti, C., Guidetti, P., Halpern, B. S., Katsanevakis, S., Mangano, M. C., Micheli, F., Milazzo, M., Pusceddu, A., Renzi, M., Rilov, G., Sara, G., Terlizzi, A., Bevilacqua, S., Airoldi, L., Ballesteros, E., Benedetti-Cecchi, L., Boero, F., Bulleri, F., Cebrian, E., Cerrano, C., Claudet, J., Colloca, F., Coppari, M., Di Franco, A., Fraschetti, S., Garrabou, J., Guarnieri, G., Guerranti, C., Guidetti, P., Halpern, B. S., Katsanevakis, S., Mangano, M. C., Micheli, F., Milazzo, M., Pusceddu, A., Renzi, M., Rilov, G., Sara, G., Terlizzi, A., Bevilacqua S., Airoldi L., Ballesteros E., Benedetti-Cecchi L., Boero F., Bulleri F., Cebrian E., Cerrano C., Claudet J., Colloca F., Coppari M., Di Franco A., Fraschetti S., Garrabou J., Guarnieri G., Guerranti C., Guidetti P., Halpern B.S., Katsanevakis S., Mangano M.C., Micheli F., Milazzo M., Pusceddu A., Renzi M., Rilov G., Sara G., and Terlizzi A.

Subjects
Conservation of Natural Resources, Bioconstruction, Fish assemblage, Coral Reefs, Algal forests, Bioconstructions, Coastal ecosystems, Conservation, Fish assemblages, Global change, Marine biodiversity, Climate Change, Biodiversity, Algal forest, Mediterranean Sea, Humans, Coastal ecosystem, Ecosystem
Abstract

Global change is striking harder and faster in the Mediterranean Sea than elsewhere, where high levels of human pressure and proneness to climate change interact in modifying the structure and disrupting regulative mechanisms of marine ecosystems. Rocky reefs are particularly exposed to such environmental changes with ongoing trends of degradation being impressive. Due to the variety of habitat types and associated marine biodiversity, rocky reefs are critical for the functioning of marine ecosystems, and their decline could profoundly affect the provision of essential goods and services which human populations in coastal areas rely upon. Here, we provide an up-to-date overview of the status of rocky reefs, trends in human-driven changes undermining their integrity, and current and upcoming management and conservation strategies, attempting a projection on what could be the future of this essential component of Mediterranean marine ecosystems.

Published
2021

11. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture : A Current Global Perspective

Author

Sarà, G., Mangano, M. C., Berlino, M., Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, J. M. F., Bakiu, R., Broitman, B. R., Buschmann, A. H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, P., Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, G., Sanchez-Jerez, P., Sevgili, H., Troell, Max, AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, E., Celić, I., Choi, F., Qin, C., Dobroslavić, T., Galli, P., Giannetto, D., Grabowski, J., Lebata-Ramos, M. J. H., Lim, P. T., Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pećarević, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, C., Tan, S. H., Thiyagarajan, V., Helmuth, B., Sarà, G., Mangano, M. C., Berlino, M., Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, J. M. F., Bakiu, R., Broitman, B. R., Buschmann, A. H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, P., Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, G., Sanchez-Jerez, P., Sevgili, H., Troell, Max, AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, E., Celić, I., Choi, F., Qin, C., Dobroslavić, T., Galli, P., Giannetto, D., Grabowski, J., Lebata-Ramos, M. J. H., Lim, P. T., Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pećarević, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, C., Tan, S. H., Thiyagarajan, V., and Helmuth, B.

Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

Published
2022
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12. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture: A Current Global Perspective

Author

Ministerio de Ciencia, Innovación y Universidades (España), Ministero dell'Istruzione, dell'Università e della Ricerca, Sarà, G. [0000-0002-7658-5274], Mangano, M. C. [0000-0001-6980-9834], Berlino, M. [0000-0003-0539-7345], Corbari, L. [0000-0001-8517-8526], Lucchese, M. [0000-0001-8037-7438], Milisenda, G. [0000-0003-1334-9749], Terzo, S. [0000-0001-5524-5425], Azaza, M. S. [0000-0002-9926-1205], Babarro, José M. F. [0000-0001-6352-1944], Bakiu, R. [0000-0002-9613-4606], Broitman, B. R. [0000-0001-6582-3188], Buschmann, A. H. [0000-0003-3246-681X], Christofoletti, R. [0000-0002-2168-9527], Deidun, A. [0000-0002-6919-5374], Dong, Y. [0000-0003-4550-2322], Galdies, J. [0000-0001-6022-360X], Glamuzina, B. [0000-0002-5066-4599], Luthman, O. [0000-0002-6227-8484], Makridis, P. [0000-0002-0265-4070], Nogueira, A. J. A. [0000-0001-7089-2508], Palomo, M. G. [0000-0002-9102-1282], Dineshram, R. [0000-0002-6723-4587], Rilov, G. [0000-0002-1334-4887], Sánchez-Jerez, P. [0000-0003-4047-238X], Sevgili, H. [0000-0001-8274-7391], Troell, M. [0000-0002-7509-8140], AbouelFadl, K. Y. [0000-0002-4585-833X], Azra, M. N. [0000-0001-9333-9270], Britz, P. [0000-0002-4436-0425], Brugere, C. [0000-0002-1412-1044], Carrington, Emily [0000-0001-8741-4828], Celić, I. [0000-0002-3438-3690], Choi, F. [0000-0003-4389-8087], Qin, C. [0000-0002-3073-1563], Dobroslavić, T. [0000-0003-3805-3186], Galli, P. [0000-0002-6065-8192], Giannetto, D. [0000-0002-3895-5553], Lebata-Ramos, M. J. H. [0000-0001-7598-038X], Lim, P. T. [0000-0003-2823-0564], Liu, Y. [0000-0001-6520-4854], Llorens, S. M. [0000-0002-9824-3267], Maricchiolo, G. [0000-0002-5670-6243], Mirto, S. [0000-0003-4707-7307], Pećarević, M. [0000-0003-4665-2103], Ragg, N. [0000-0002-5466-4617], Ravagnan, E. [0000-0002-9724-3660], Saidi, D. [0000-0001-6382-8073], Shaltout, M. [0000-0002-0429-3029], Solidoro, C. [0000-0003-2354-4302], Tan, S. H. [0000-0001-8690-047X], Thiyagarajan, V. [0000-0002-2062-4799], Helmuth, B. [0000-0003-0180-3414], Sarà, Gianluca, Mangano, Maria Cristina, Berlino, Manuel, Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, José M. F., Bakiu, Rigers, Broitman, B. R., Buschmann, Alejandro H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, Pavlos, Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, Gil, Sánchez-Jerez, P., Sevgili, H., Troell, M., AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, Emily, Celić, I., Choi, F., Qin, C., Dobroslavic, T., Galli, P., Giannetto, D., Grabowski, J. H., Lebata-Ramos, M. J. H., Lim, Po Teen, Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pećarević, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, Cosimo, Tan, S. H., Thiyagarajan, V., Helmuth, B., Ministerio de Ciencia, Innovación y Universidades (España), Ministero dell'Istruzione, dell'Università e della Ricerca, Sarà, G. [0000-0002-7658-5274], Mangano, M. C. [0000-0001-6980-9834], Berlino, M. [0000-0003-0539-7345], Corbari, L. [0000-0001-8517-8526], Lucchese, M. [0000-0001-8037-7438], Milisenda, G. [0000-0003-1334-9749], Terzo, S. [0000-0001-5524-5425], Azaza, M. S. [0000-0002-9926-1205], Babarro, José M. F. [0000-0001-6352-1944], Bakiu, R. [0000-0002-9613-4606], Broitman, B. R. [0000-0001-6582-3188], Buschmann, A. H. [0000-0003-3246-681X], Christofoletti, R. [0000-0002-2168-9527], Deidun, A. [0000-0002-6919-5374], Dong, Y. [0000-0003-4550-2322], Galdies, J. [0000-0001-6022-360X], Glamuzina, B. [0000-0002-5066-4599], Luthman, O. [0000-0002-6227-8484], Makridis, P. [0000-0002-0265-4070], Nogueira, A. J. A. [0000-0001-7089-2508], Palomo, M. G. [0000-0002-9102-1282], Dineshram, R. [0000-0002-6723-4587], Rilov, G. [0000-0002-1334-4887], Sánchez-Jerez, P. [0000-0003-4047-238X], Sevgili, H. [0000-0001-8274-7391], Troell, M. [0000-0002-7509-8140], AbouelFadl, K. Y. [0000-0002-4585-833X], Azra, M. N. [0000-0001-9333-9270], Britz, P. [0000-0002-4436-0425], Brugere, C. [0000-0002-1412-1044], Carrington, Emily [0000-0001-8741-4828], Celić, I. [0000-0002-3438-3690], Choi, F. [0000-0003-4389-8087], Qin, C. [0000-0002-3073-1563], Dobroslavić, T. [0000-0003-3805-3186], Galli, P. [0000-0002-6065-8192], Giannetto, D. [0000-0002-3895-5553], Lebata-Ramos, M. J. H. [0000-0001-7598-038X], Lim, P. T. [0000-0003-2823-0564], Liu, Y. [0000-0001-6520-4854], Llorens, S. M. [0000-0002-9824-3267], Maricchiolo, G. [0000-0002-5670-6243], Mirto, S. [0000-0003-4707-7307], Pećarević, M. [0000-0003-4665-2103], Ragg, N. [0000-0002-5466-4617], Ravagnan, E. [0000-0002-9724-3660], Saidi, D. [0000-0001-6382-8073], Shaltout, M. [0000-0002-0429-3029], Solidoro, C. [0000-0003-2354-4302], Tan, S. H. [0000-0001-8690-047X], Thiyagarajan, V. [0000-0002-2062-4799], Helmuth, B. [0000-0003-0180-3414], Sarà, Gianluca, Mangano, Maria Cristina, Berlino, Manuel, Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, José M. F., Bakiu, Rigers, Broitman, B. R., Buschmann, Alejandro H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, Pavlos, Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, Gil, Sánchez-Jerez, P., Sevgili, H., Troell, M., AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, Emily, Celić, I., Choi, F., Qin, C., Dobroslavic, T., Galli, P., Giannetto, D., Grabowski, J. H., Lebata-Ramos, M. J. H., Lim, Po Teen, Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pećarević, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, Cosimo, Tan, S. H., Thiyagarajan, V., and Helmuth, B.

Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

Published
2022

16. A review of the combined effects of climate change and other local human stressors on the marine environment

Author

Gissi, E., Mazaris, A.D., Manea, E., Fraschetti, S., Almpanidou, V., Bevilacqua, S., Guarnieri, G., Lloret-Lloret, E., Pascual, M., Petza, D., Rilov, G., Schonwald, M., Stelzenmüller, V., Katsanevakis, S., Gissi, E., Mazaris, A.D., Manea, E., Fraschetti, S., Almpanidou, V., Bevilacqua, S., Guarnieri, G., Lloret-Lloret, E., Pascual, M., Petza, D., Rilov, G., Schonwald, M., Stelzenmüller, V., and Katsanevakis, S.

Abstract

Climate change (CC) is a key, global driver of change of marine ecosystems. At local and regional scales, other local human stressors (LS) can interact with CC and modify its effects on marine ecosystems. Understanding the response of the marine environment

Published
2021

17. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture: A Current Global Perspective

Author

Sarà, G., primary, Mangano, M. C., additional, Berlino, M., additional, Corbari, L., additional, Lucchese, M., additional, Milisenda, G., additional, Terzo, S., additional, Azaza, M. S., additional, Babarro, J. M. F., additional, Bakiu, R., additional, Broitman, B. R., additional, Buschmann, A. H., additional, Christofoletti, R., additional, Deidun, A., additional, Dong, Y., additional, Galdies, J., additional, Glamuzina, B., additional, Luthman, O., additional, Makridis, P., additional, Nogueira, A. J. A., additional, Palomo, M. G., additional, Dineshram, R., additional, Rilov, G., additional, Sanchez-Jerez, P., additional, Sevgili, H., additional, Troell, M., additional, AbouelFadl, K. Y., additional, Azra, M. N., additional, Britz, P., additional, Brugere, C., additional, Carrington, E., additional, Celić, I., additional, Choi, F., additional, Qin, C., additional, Dobroslavić, T., additional, Galli, P., additional, Giannetto, D., additional, Grabowski, J., additional, Lebata-Ramos, M. J. H., additional, Lim, P. T., additional, Liu, Y., additional, Llorens, S. M., additional, Maricchiolo, G., additional, Mirto, S., additional, Pećarević, M., additional, Ragg, N., additional, Ravagnan, E., additional, Saidi, D., additional, Schultz, K., additional, Shaltout, M., additional, Solidoro, C., additional, Tan, S. H., additional, Thiyagarajan, V., additional, and Helmuth, B., additional

Published
2021
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20. “New Mediterranean Biodiversity Records” 2019

Author

STERN, N., primary, BADREDDINE, A., additional, BITAR, G., additional, CROCETTA, F., additional, DEIDUN, A., additional, DRAGIČEVIĆ, B., additional, DULČIĆ, J., additional, DURGHAM, H., additional, GALIL, B.S., additional, GALIYA, M., additional, IKHTIYAR, S., additional, IZQUIREDO-MUÑOS, A., additional, KASSAR, A., additional, LOMBARDO, A., additional, LUBINEVSKY, H., additional, MASALLES, D., additional, OTHMAN, R., additional, OUSSELLAM, M., additional, PEŠIĆ, V., additional, PIPITONE, C., additional, RAMOS-ESPLÁ, A.A, additional, RILOV, G., additional, ROTHMAN, S.B.S., additional, SELFATI, M., additional, TIRALONGO, F., additional, TÜRKER, A., additional, UGARKOVIĆ, P., additional, YAPICI, S., additional, and ZAVA, B., additional

Published
2019
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21. A risk-based approach to cumulative effect assessments for marine management.

Author

Stelzenmüller, Vanessa, Coll, Marta, Mazaris, A. D., Giakoumi, S., Katsanevakis, Stelios, Portman, M., Degen, R., Mackelworth, P., Gimpe, A., Albano, P. G., Almpanidou, V., Claudet, Joachim, Essel, F., Evagelopoulos, T., Heymans, J.J., Genov, Tilen, Kark, S., Micheli, F., Pennino, Maria Grazia, Rilov, G., Rumes, B., Steenbeek, Jeroen, Stelzenmüller, Vanessa, Coll, Marta, Mazaris, A. D., Giakoumi, S., Katsanevakis, Stelios, Portman, M., Degen, R., Mackelworth, P., Gimpe, A., Albano, P. G., Almpanidou, V., Claudet, Joachim, Essel, F., Evagelopoulos, T., Heymans, J.J., Genov, Tilen, Kark, S., Micheli, F., Pennino, Maria Grazia, Rilov, G., Rumes, B., and Steenbeek, Jeroen

Abstract

Marine ecosystems are increasingly threatened by the cumulative effects of multiple human pressures. Cumulative effect assessments (CEAs) are needed to inform environmental policy and guide ecosystem-based management. Yet, CEAs are inherently complex and seldom linked to real-world management processes. Therefore we propose entrenching CEAs in a risk management process, comprising the steps of risk identification, risk analysis and risk evaluation. We provide guidance to operationalize a risk-based approach to CEAs by describing for each step guiding principles and desired outcomes, scientific challenges and practical solutions. We reviewed the treatment of uncertainty in CEAs and the contribution of different tools and data sources to the implementation of a risk based approach to CEAs. We show that a risk-based approach to CEAs decreases complexity, allows for the transparent treatment of uncertainty and streamlines the uptake of scientific outcomes into the science-policy interface. Hence, its adoption can help bridging the gap between science and decision-making in ecosystem-based management.

Published
2018

23. Essence of the patterns of cover and richness of intertidal hard bottom communities: a pan-European study

Author

Kotta, J., Orav-Kotta, H., Holger, J., Hummel, H., Arvanitidis, C., van Avesaath, P., Bachelet, G., Benedetti-Cecchi, L., Bojanić, N., Como, S., Coppa, S., Coughlan, J., Crowe, T., dal Bello, M., Degraer, S., De La Pena, J.A.J., De Matos, V.K.F., Espinosa, F., Faulwetter, S., Frost, M., Guinda, X., Jankowska, E., Jourde, J., Kerckhof, F., Lavesque, N., Leclerc, J.-C., Magni, P., Pavloudi, C., Pedrotti, M.L., Peleg, O., Pérez-Ruzafa, A., Puente, A., Ribeiro, P., Rilov, G., Rousou, M., Ruginis, T., Silva, T., Simon, N., Sousa-Pinto, I., Troncoso, J., Warzocha, J., Weslawski, J.M., Kotta, J., Orav-Kotta, H., Holger, J., Hummel, H., Arvanitidis, C., van Avesaath, P., Bachelet, G., Benedetti-Cecchi, L., Bojanić, N., Como, S., Coppa, S., Coughlan, J., Crowe, T., dal Bello, M., Degraer, S., De La Pena, J.A.J., De Matos, V.K.F., Espinosa, F., Faulwetter, S., Frost, M., Guinda, X., Jankowska, E., Jourde, J., Kerckhof, F., Lavesque, N., Leclerc, J.-C., Magni, P., Pavloudi, C., Pedrotti, M.L., Peleg, O., Pérez-Ruzafa, A., Puente, A., Ribeiro, P., Rilov, G., Rousou, M., Ruginis, T., Silva, T., Simon, N., Sousa-Pinto, I., Troncoso, J., Warzocha, J., and Weslawski, J.M.

Abstract

Coastal ecosystems are highly complex and driven by multiple environmental factors. To date we lack scientific evidence for the relative contribution of natural and anthropogenic drivers for the majority of marine habitats in order to adequately assess the role of different stressors across the European seas. Such relationship can be investigated by analysing the correlation between environmental variables and biotic patterns in multivariate space and taking into account non-linearities. Within the framework of the EMBOS (European Marine Biodiversity Observatory System) programme, hard bottom intertidal communities were sampled in a standardized way across European seas. Links between key natural and anthropogenic drivers and hard bottom communities were analysed using Boosted Regression Trees modelling. The study identified strong interregional variability and showed that patterns of hard bottom macroalgal and invertebrate communities were primarily a function of tidal regime, nutrient loading and water temperature (anomalies). The strength and shape of functional form relationships varied widely however among types of organisms (understorey algae composing mostly filamentous species, canopy-forming algae or sessile invertebrates) and aggregated community variables (cover or richness). Tidal regime significantly modulated the effect of nutrient load on the cover and richness of understorey algae and sessile invertebrates. In contrast, hydroclimate was more important for canopy algae and temperature anomalies and hydroclimate separately or interactively contributed to the observed patterns. The analyses also suggested that climate-induced shifts in weather patterns may result in the loss of algal richness and thereby in the loss of functional diversity in European hard bottom intertidal areas.

Published
2017

24. The role of physical variables in biodiversity patterns of intertidal macroalgae along European coasts

Author

Puente, A., Guinda, X., Juanes, J.A., Ramos, E., Echavarri-Erasun, B., De La Hoz, C.F., Degraer, S., Kerckhof, F., Bojanić, N., Rousou, M., Orav-Kotta, H., Kotta, J., Jourde, J., Pedrotti, M.L., Leclerc, J.-C., Simon, N., Bachelet, G., Lavesque, N., Arvanitidis, C., Pavloudi, C., Faulwetter, S., Crowe, T.P., Coughlan, J., Benedetti-Cecchi, L., dal Bello, M., Magni, P., Como, S., Coppa, S., De Lucia, G.A., Rugins, T., Jankowska, E., Weslawski, J.M., Warzocha, J., Silva, T., Ribeiro, P., de Matos, V., Sousa-Pinto, I., Troncoso, J., Peleg, O., Rilov, G., Espinosa, F., Pérez-Ruzafa, A., Frost, M., Hummel, H., van Avesaath, P., Puente, A., Guinda, X., Juanes, J.A., Ramos, E., Echavarri-Erasun, B., De La Hoz, C.F., Degraer, S., Kerckhof, F., Bojanić, N., Rousou, M., Orav-Kotta, H., Kotta, J., Jourde, J., Pedrotti, M.L., Leclerc, J.-C., Simon, N., Bachelet, G., Lavesque, N., Arvanitidis, C., Pavloudi, C., Faulwetter, S., Crowe, T.P., Coughlan, J., Benedetti-Cecchi, L., dal Bello, M., Magni, P., Como, S., Coppa, S., De Lucia, G.A., Rugins, T., Jankowska, E., Weslawski, J.M., Warzocha, J., Silva, T., Ribeiro, P., de Matos, V., Sousa-Pinto, I., Troncoso, J., Peleg, O., Rilov, G., Espinosa, F., Pérez-Ruzafa, A., Frost, M., Hummel, H., and van Avesaath, P.

Abstract

In the frame of the COST ACTION ‘EMBOS’ (Development and implementation of a pan-European Marine Biodiversity Observatory System), coverage of intertidal macroalgae was estimated at a range of marine stations along the European coastline (Subarctic, Baltic, Atlantic, Mediterranean). Based on these data, we tested whether patterns in macroalgal diversity and distribution along European intertidal rocky shores could be explained by a set of meteo-oceanographic variables. The variables considered were salinity, sea surface temperature, photosynthetically active radiation, significant wave height and tidal range and were compiled from three different sources: remote sensing, reanalysis technique and in situ measurement. These variables were parameterized to represent average conditions (mean values), variability (standard deviation) and extreme events (minimum and maximum values). The results obtained in this study contribute to reinforce the EMBOS network approach and highlight the necessity of considering meteo-oceanographic variables in long-term assessments. The broad spatial distribution of pilot sites has allowed identification of latitudinal and longitudinal gradients manifested through species composition, diversity and dominance structure of intertidal macroalgae. These patterns follow a latitudinal gradient mainly explained by sea surface temperature, but also by photosynthetically active radiation, salinity and tidal range. Additionally, a longitudinal gradient was also detected and could be linked to wave height.

Published
2017

25. Consistent patterns of spatial variability between NE Atlantic and Mediterranean rocky shores

Author

dal Bello, M., Leclerc, J.-C., Benedetti-Cecchi, L., De Lucia, G.A., Arvanitidis, C., van Avesaath, P., Bachelet, G., Bojanic, N., Como, S., Coppa, S., Coughlan, J., Crowe, T., Degraer, S., Espinosa, F., Faulwetter, S., Frost, M., Guinda, X., Jankowska, E., Jourde, J., De La Pena, J.A.J., Kerckhof, F., Kotta, J., Lavesque, N., Magni, P., de Matos, V., Orav-Kotta, H., Pavloudi, C., Pedrotti, M.L., Peleg, O., Pérez-Ruzafa, A., Puente, A., Ribeiro, P., Rigaut-Jalabert, F., Rilov, G., Rousou, M., Rubal, M., Ruginis, T., Silva, T., Simon, N., Sousa-Pinto, I., Troncoso, J., Warzocha, J., Weslawski, J.M., Hummel, H., dal Bello, M., Leclerc, J.-C., Benedetti-Cecchi, L., De Lucia, G.A., Arvanitidis, C., van Avesaath, P., Bachelet, G., Bojanic, N., Como, S., Coppa, S., Coughlan, J., Crowe, T., Degraer, S., Espinosa, F., Faulwetter, S., Frost, M., Guinda, X., Jankowska, E., Jourde, J., De La Pena, J.A.J., Kerckhof, F., Kotta, J., Lavesque, N., Magni, P., de Matos, V., Orav-Kotta, H., Pavloudi, C., Pedrotti, M.L., Peleg, O., Pérez-Ruzafa, A., Puente, A., Ribeiro, P., Rigaut-Jalabert, F., Rilov, G., Rousou, M., Rubal, M., Ruginis, T., Silva, T., Simon, N., Sousa-Pinto, I., Troncoso, J., Warzocha, J., Weslawski, J.M., and Hummel, H.

Abstract

Examining how variability in population abundance and distribution is allotted among different spatial scales can inform of processes that are likely to generate that variability. Results of studies dealing with scale issues in marine benthic communities suggest that variability is concentrated at small spatial scales (from tens of centimetres to few metres) and that spatial patterns of variation are consistent across ecosystems characterized by contrasting physical and biotic conditions, but this has not been formally tested. Here we quantified the variability in the distribution of intertidal rocky shore communities at a range of spatial scales, from tens of centimetres to thousands of kilometres, both in the NE Atlantic and the Mediterranean, and tested whether the observed patterns differed between the two basins. We focused on canopy-forming macroalgae and associated understorey assemblages in the low intertidal, and on the distribution of Patella limpets at mid intertidal levels. Our results highlight that patterns of spatial variation, at each scale investigated, were consistent between the Atlantic and the Mediterranean, suggesting that similar ecological processes operate in these regions. In contrast with former studies, variability in canopy cover, species richness and limpet abundance was equally distributed among spatial scales, possibly reflecting the fingerprint of multiple processes. Variability in community structure of low intertidal assemblages, instead, peaked at the largest scale, suggesting that oceanographic processes and climatic gradients may be important. We conclude that formal comparisons of variability across scales nested in contrasting systems are needed, before any generalization on patterns and processes can be made.

Published
2017

26. Geographic patterns of biodiversity in European coastal marine benthos

Author

Hummel, H., van Avesaath, P., Wijnhoven, S., Kleine-Schaars, L., Degraer, S., Kerckhof, F., Bojanic, N., Skejic, S., Vidjak, O., Rousou, M., Orav-Kotta, H., Kotta, J., Jourde, J., Pedrotti, M.L., Leclerc, J.-C., Simon, N., Rigaut-Jalabert, F., Bachelet, G., Lavesque, N., Arvanitidis, C., Pavloudi, C., Faulwetter, S., Crowe, T., Coughlan, J., Benedetti-Cecchi, L., dal Bello, M., Magni, P., Como, S., Coppa, S., Ikauniece, A., Ruginis, T., Jankowska, E., Weslawski, J.M., Warzocha, J., Gromisz, S., Witalis, B., Silva, T., Ribeiro, P., De Matos, V.K.F., Sousa-Pinto, I., Veiga, P., Troncoso, J., Guinda, X., De La Pena, J.A.J., Puente, A., Espinosa, F., Pérez-Ruzafa, A., Frost, M., Mcneill, C.L., Peleg, O., Rilov, G., Hummel, H., van Avesaath, P., Wijnhoven, S., Kleine-Schaars, L., Degraer, S., Kerckhof, F., Bojanic, N., Skejic, S., Vidjak, O., Rousou, M., Orav-Kotta, H., Kotta, J., Jourde, J., Pedrotti, M.L., Leclerc, J.-C., Simon, N., Rigaut-Jalabert, F., Bachelet, G., Lavesque, N., Arvanitidis, C., Pavloudi, C., Faulwetter, S., Crowe, T., Coughlan, J., Benedetti-Cecchi, L., dal Bello, M., Magni, P., Como, S., Coppa, S., Ikauniece, A., Ruginis, T., Jankowska, E., Weslawski, J.M., Warzocha, J., Gromisz, S., Witalis, B., Silva, T., Ribeiro, P., De Matos, V.K.F., Sousa-Pinto, I., Veiga, P., Troncoso, J., Guinda, X., De La Pena, J.A.J., Puente, A., Espinosa, F., Pérez-Ruzafa, A., Frost, M., Mcneill, C.L., Peleg, O., and Rilov, G.

Abstract

Within the COST action EMBOS (European Marine Biodiversity Observatory System) the degree and variation of the diversity and densities of soft-bottom communities from the lower intertidal or the shallow subtidal was measured at 28 marine sites along the European coastline (Baltic, Atlantic, Mediterranean) using jointly agreed and harmonized protocols, tools and indicators. The hypothesis tested was that the diversity for all taxonomic groups would decrease with increasing latitude. The EMBOS system delivered accurate and comparable data on the diversity and densities of the soft sediment macrozoobenthic community over a large-scale gradient along the European coastline. In contrast to general biogeographic theory, species diversity showed no linear relationship with latitude, yet a bell-shaped relation was found. The diversity and densities of benthos were mostly positively correlated with environmental factors such as temperature, salinity, mud and organic matter content in sediment, or wave height, and related with location characteristics such as system type (lagoons, estuaries, open coast) or stratum (intertidal, subtidal). For some relationships, a maximum (e.g. temperature from 15–20°C; mud content of sediment around 40%) or bimodal curve (e.g. salinity) was found. In lagoons the densities were twice higher than in other locations, and at open coasts the diversity was much lower than in other locations. We conclude that latitudinal trends and regional differences in diversity and densities are strongly influenced by, i.e. merely the result of, particular sets and ranges of environmental factors and location characteristics specific to certain areas, such as the Baltic, with typical salinity clines (favouring insects) and the Mediterranean, with higher temperatures (favouring crustaceans). Therefore, eventual trends with latitude are primarily indirect and so can be overcome by local variation of environmental factors.

Published
2017

27. Taxonomic vs functional patterns across European marine benthic habitats: using research infrastructures (LIFEWATCH, ESFRI) in large-scale ecology

Author

Arvanitidis, C., Pavloudi, C., Faulwetter, S., Keklikoglou, K., Vasileiadou, K., Chatzinikolaou, E., Rousou, M., Mavraki, D., Nikolopoulou, M., Bailly, N., Oulas, A., Patkos, T., Varsos, K., Lagnel, J., Gougousis, A., Bekiari, C., Doerr, M., Panteri, E., Minadakis, N., Pattakos, N., Kotta, J., Orav-Kotta, H., Bachelet, G., Lavesque, N., Benedetti-Cecchi, L., dal Bello, M., Bojanic, N., Como, S., Coppa, S., Magni, P., Coughlan, J., Crowe, T., Degraer, S., De La Pena, J.A.J., Guinda, X., Puente, A., Kirienko Fernandes de Matos, V., Ribeiro, P., Espinosa, F., Kerckhof, F., Jankowska, E., Weslawski, J.M., Peleg, O., Rilov, G., Perez-Ruzafa, A., Ruginis, T., Jourde, J., Leclerc, J.-C., Simon, N., Pedrotti, M.L., Silva, T., Sousa Pinto, I., Rubal, M., Troncoso, J.S., Warzocha, J., van Avesaath, P., Frost, M., and Hummel, H.

Published
2016

29. A mesocosm concept for the simulation of near-natural shallow underwater climates: The Kiel Outdoor Benthocosms (KOB)

Author

Wahl, Martin, Buchholz, Björn, Winde, V., Golomb, D., Guy Haim, T., Müller, J., Rilov, G., Scotti, Marco, and Boettcher, M.

Abstract

Biogenic, seasonal, and stochastic fluctuations at various scales characterize coastal marine habitats and modulate environmental stress. The relevance of most past studies into climate change impacts is weakened by the usually intentional exclusion of fluctuations from the experimental design. We describe a new outdoor mesocosm system for benthic research (“benthocosms”) which permit the control and manipulation of several environmental variables while admitting all natural in situ fluctuations. This is achieved by continuously measuring the relevant variables (e.g., temperature, pH, O2, CO2) in situ, defining these in real time as reference values in the control software and simulating target climates by delta treatments. The latter constitute the manipulative addition of predefined changes (e.g., “warming”, “acidification”) to the reference values. We illustrate the performance of the system by presenting the environmental data of four seasonal experiments which together represent an entire year. The “Kiel Outdoor Benthocosms” allow realizing near-natural climate change experiments on complex benthic communities under controlled scenarios.

Published
2015

30. Shifted Coastal Communities and Ecosystem Functions under Predicted Warming and Acidification

Author

Guy-Haim, Tamar, Silverman, J., Raddatz, Stefanie, Wahl, Martin, Rilov, G., Guy-Haim, Tamar, Silverman, J., Raddatz, Stefanie, Wahl, Martin, and Rilov, G.

Abstract

The effects of ocean warming and acidification on Eastern Mediterranean coastal benthic communities were studied in a long-term research using benthic mesocosms ('benthocosms'). Temperature and pH treatments complied with the near-past, present and predicted-future levels. While biodiversity indices did not change significantly with warming (+3 ºC) and acidification (-0.5 pH units), community composition shifted from native to non-indigenous species dominance, and the abundance of calcifying species increased. In the summer, community functions presented a shift from autotrophic to heterotrophic system.

Published
2016

31. The Ecological Implications of Climate Change on the Lagoon of Venice

Author

Tagliapietra, D., Aloui Bejaoui, N., Bellafiore, D., De Wit, R., Ferrarin, C., Gamito, S., Lasserre, P., Magni, P., Mistri, Michele, Pérez Ruzafa, A., Pranovi, F., Reizopoulou, S., Rilov, G., Solidoro, C., Tunberg, B., Valiela, I., and Viaroli, P.

Published
2011

33. Small-scale demographic variability of the biocolor damselfish, Stegastes partitus, in the Florida Keys USA

Author

Figueira, WF, Lyman, SJ, Crowder, L, and Rilov, G

Subjects
fungi, Fisheries
Abstract

The demographic responses of reef fish to their environment can be complex and in many cases, quite strong. Growth, mortality, longevity, and even reproductive effort have been demonstrated to vary for the same species of reef fish over scales of 100s to 1,000s of kilometers due to physiological and ecological interactions. Though few studies have explicitly documented it, this sort of habitat-mediated demography can also exist at very local scales. Here we present the results of a 2-year study of the bicolor damselfish, Stegastes partitus, in the Florida Keys, USA. We measured density and distribution, calculated key demographic rates (growth, survival, and fecundity), and characterized the environment (resident fish assemblage, substrate type and complexity, and food availability) of populations living in two adjacent but different habitats, the continuous fore reef and patchy back reef. Fish on the fore reef had an elevated growth rate and asymptotic size, increased mortality, and higher fecundity than fish on the back reef. We identified four potential causative mechanisms for these differences: food availability; competition; intraspecific density-dependent effects; and predation risk. Our data did not support an effect of either food availability or intraspecific density-dependence, but rather suggested that demographic responses are affected by both competition and predation risk.

Published
2008

36. Non-natives: 141 scientists object

Author

Simberloff, D., Alexander, J., Allendorf, F., Aronson, J., Antunes, P.M., Bacher, S., Bardgett, R., Bertolino, S., Bishop, M., Blackburn, T.M., Blakeslee, A., Blumenthal, D., Bortolus, A., Buckley, R., Buckley, Y., Byers, J., Callaway, R.M., Campbell, F., Campbell, K., Campbell, M., Carlton, J.T., Cassey, P., Catford, J., Celesti-Grapow, L., Chapman, J., Clark, P., Clewell, A., Clode, J.C., Chang, A., Chytrý, M., Clout, M., Cohen, A., Cowan, P., Cowie, R.H., Crall, A.W., Crooks, J., Deveney, M., Dixon, K., Dobbs, F.C., Duffy, D.C., Duncan, R., Ehrlich, P.R., Eldredge, L., Evenhuis, N., Fausch, K.D., Feldhaar, H., Firn, J., Fowler, A., Galil, B., García-Berthou, E., Geller, J., Genovesi, P., Gerber, E., Gherardi, F., Gollasch, S., Gordon, D., Graham, J., Gribben, P., Griffen, B., Grosholz, E.D., Hewitt, C., Hierro, J.L., Hulme, P., Hutchings, P., Jarošík, V., Johnson, C., Johnson, L., Johnston, E.L., Jones, C.G., Keller, R., King, C.M., Knols, B.G.J., Kollmann, J., Kompas, T., Kotanen, P.M., Kowarik, I., Kühn, Ingolf, Kumschick, S., Leung, B., Liebhold, A., MacIsaac, H., Mack, R., McCullough, D.G., McDonald, R., Merritt, D.M., Meyerson, L., Minchin, D., Mooney, H.A., Morisette, J.T., Moyle, P., Müller-Schärer, H., Murray, B.R., Nehring, S., Nelson, W., Nentwig, W., Rilov, G., Ritchie, E., Robertson, P.A., Roman, J., Vilà, M., Simberloff, D., Alexander, J., Allendorf, F., Aronson, J., Antunes, P.M., Bacher, S., Bardgett, R., Bertolino, S., Bishop, M., Blackburn, T.M., Blakeslee, A., Blumenthal, D., Bortolus, A., Buckley, R., Buckley, Y., Byers, J., Callaway, R.M., Campbell, F., Campbell, K., Campbell, M., Carlton, J.T., Cassey, P., Catford, J., Celesti-Grapow, L., Chapman, J., Clark, P., Clewell, A., Clode, J.C., Chang, A., Chytrý, M., Clout, M., Cohen, A., Cowan, P., Cowie, R.H., Crall, A.W., Crooks, J., Deveney, M., Dixon, K., Dobbs, F.C., Duffy, D.C., Duncan, R., Ehrlich, P.R., Eldredge, L., Evenhuis, N., Fausch, K.D., Feldhaar, H., Firn, J., Fowler, A., Galil, B., García-Berthou, E., Geller, J., Genovesi, P., Gerber, E., Gherardi, F., Gollasch, S., Gordon, D., Graham, J., Gribben, P., Griffen, B., Grosholz, E.D., Hewitt, C., Hierro, J.L., Hulme, P., Hutchings, P., Jarošík, V., Johnson, C., Johnson, L., Johnston, E.L., Jones, C.G., Keller, R., King, C.M., Knols, B.G.J., Kollmann, J., Kompas, T., Kotanen, P.M., Kowarik, I., Kühn, Ingolf, Kumschick, S., Leung, B., Liebhold, A., MacIsaac, H., Mack, R., McCullough, D.G., McDonald, R., Merritt, D.M., Meyerson, L., Minchin, D., Mooney, H.A., Morisette, J.T., Moyle, P., Müller-Schärer, H., Murray, B.R., Nehring, S., Nelson, W., Nentwig, W., Rilov, G., Ritchie, E., Robertson, P.A., Roman, J., and Vilà, M.

Abstract

no abstract

Published
2011

44. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture: A Current Global Perspective

Author

Sar��, G., Mangano, M. C., Berlino, M., Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, J. M. F., Bakiu, R., Broitman, B. R., Buschmann, A. H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, P., Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, G., Sanchez-Jerez, P., Sevgili, H., Troell, M., AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, E., Celi��, I., Choi, F., Qin, C., Dobroslavi��, T., Galli, P., Giannetto, D., Grabowski, J., Lebata-Ramos, M. J. H., Lim, P. T., Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pe��arevi��, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, C., Tan, S. H., Thiyagarajan, V., and Helmuth, B.

Subjects
13. Climate action, 14. Life underwater
Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

45. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture: A Current Global Perspective

Author

Sar��, G., Mangano, M. C., Berlino, M., Corbari, L., Lucchese, M., Milisenda, G., Terzo, S., Azaza, M. S., Babarro, J. M. F., Bakiu, R., Broitman, B. R., Buschmann, A. H., Christofoletti, R., Deidun, A., Dong, Y., Galdies, J., Glamuzina, B., Luthman, O., Makridis, P., Nogueira, A. J. A., Palomo, M. G., Dineshram, R., Rilov, G., Sanchez-Jerez, P., Sevgili, H., Troell, M., AbouelFadl, K. Y., Azra, M. N., Britz, P., Brugere, C., Carrington, E., Celi��, I., Choi, F., Qin, C., Dobroslavi��, T., Galli, P., Giannetto, D., Grabowski, J., Lebata-Ramos, M. J. H., Lim, P. T., Liu, Y., Llorens, S. M., Maricchiolo, G., Mirto, S., Pe��arevi��, M., Ragg, N., Ravagnan, E., Saidi, D., Schultz, K., Shaltout, M., Solidoro, C., Tan, S. H., Thiyagarajan, V., and Helmuth, B.

Subjects
14. Life underwater
Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

46. Migratory corridors and foraging hotspots: critical habitats identified for Mediterranean green turtles

Author

Stokes, K. L., Broderick, A. C., Canbolat, A. F., Candan, O., Fuller, W. J., Glen, F., Levy, Y., Rees, A. F., Rilov, G., Snape, R. T., Stott, I., Tchernov, D., Godley, B. J., Richardson, David, Stokes, K. L., Broderick, A. C., Canbolat, A. F., Candan, O., Fuller, W. J., Glen, F., Levy, Y., Rees, A. F., Rilov, G., Snape, R. T., Stott, I., Tchernov, D., Godley, B. J., and Richardson, David

Abstract

Aim Levels of sea turtle bycatch in the Mediterranean are thought to be unsustainable. We provide a comprehensive overview of adult green turtle (Chelonia mydas) distribution during nesting, migration and foraging phases, highlighting transitory as well as residential areas of high use to facilitate adequate protection for this long‐lived, migratory species. Location Mediterranean Sea. Methods Thirty‐four females were satellite tracked from breeding grounds in the four countries with major nesting (Cyprus, Turkey, Israel and Syria) for a total of 8521 (mean: 251) tracking days in a collaborative effort to summarize the most comprehensive set of distribution data thus far assembled for this species in the Mediterranean. Results Ten foraging grounds are identified, with two major hotspots in Libya accounting for >50% of turtles tracked to conclusive endpoints. The coastlines of Egypt and Libya contain high densities of migrating turtles following the nesting season, particularly July–September, and likely also pre‐nesting (April–June). A high‐use seasonal pelagic corridor running south‐west from Turkey and Cyprus to Egypt is also evident, used by >50% of all tracked turtles. Main conclusions Bycatch levels and mortality rates for the key foraging areas and high‐density seasonal pathways identified here are largely unknown and should be investigated as a priority. We recommend that the Gulf of Sirte in Libya be explored as a potential biodiversity hotspot and considered for proposal as a marine protected area (MPA). Green turtle fidelity to nesting beaches, foraging areas and migratory pathways renders them vulnerable to localized threats but enables targeted mitigation measures and protection.

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47. Taming the terminological tempest in invasion science

Author

Soto, I., Balzani, P., Carneiro, L., Cuthbert, R. N., Macêdo, R., Tarkan, Ali Serhan, Ahmed, D. A., Bang, A., Bacela-Spychalska, K., Bailey, S. A., Baudry, T., Ballesteros-Mejia, L., Bortolus, A., Briski, E., Britton, J. Robert, Buřič, M., Camacho-Cervantes, M., Cano-Barbacil, C., Copilaș-Ciocianu, D., Coughlan, N. E., Courtois, P., Csabai, Z., Dalu, T., De Santis, V., Dickey, J. W. E., Dimarco, R. D., Falk-Andersson, J., Fernandez, R. D., Florencio, M., Franco, A. C. S., García-Berthou, E., Giannetto, D., Glavendekic, M. M., Grabowski, M., Heringer, G., Herrera, I., Huang, W., Kamelamela, K. L., Kirichenko, N. I., Kouba, A., Kourantidou, M., Kurtul, I., Laufer, G., Lipták, B., Liu, C., López-López, E., Lozano, V., Mammola, S., Marchini, A., Meshkova, V., Milardi, M., Musolin, D. L., Martin A. Nuñez, M. A., Oficialdegui, F. J., Patoka, J., Pattison, Z., Pincheira-Donoso, D., Piria, M., Probert, A. F., Rasmussen, J. J., Renault, D., Ribeiro, F., Rilov, G., Robinson, T. B., Sanchez, A. E., Schwindt, E., South, J., Stoett, P., Verreycken, H., Vilizzi, L., Wang, Y-J., Watari, Y., Wehi, P. M., Weiperth, A., Wiberg-Larsen, P., Yapıcı, S., Yoğurtçuoğlu, B., Zenni, R. D., Galil, B. S., Dick, J. T. A., Russell, J. C., Ricciardi, A., Simberloff,, D., Bradshaw, C. J. A., Haubrock, P. J., Soto, I., Balzani, P., Carneiro, L., Cuthbert, R. N., Macêdo, R., Tarkan, Ali Serhan, Ahmed, D. A., Bang, A., Bacela-Spychalska, K., Bailey, S. A., Baudry, T., Ballesteros-Mejia, L., Bortolus, A., Briski, E., Britton, J. Robert, Buřič, M., Camacho-Cervantes, M., Cano-Barbacil, C., Copilaș-Ciocianu, D., Coughlan, N. E., Courtois, P., Csabai, Z., Dalu, T., De Santis, V., Dickey, J. W. E., Dimarco, R. D., Falk-Andersson, J., Fernandez, R. D., Florencio, M., Franco, A. C. S., García-Berthou, E., Giannetto, D., Glavendekic, M. M., Grabowski, M., Heringer, G., Herrera, I., Huang, W., Kamelamela, K. L., Kirichenko, N. I., Kouba, A., Kourantidou, M., Kurtul, I., Laufer, G., Lipták, B., Liu, C., López-López, E., Lozano, V., Mammola, S., Marchini, A., Meshkova, V., Milardi, M., Musolin, D. L., Martin A. Nuñez, M. A., Oficialdegui, F. J., Patoka, J., Pattison, Z., Pincheira-Donoso, D., Piria, M., Probert, A. F., Rasmussen, J. J., Renault, D., Ribeiro, F., Rilov, G., Robinson, T. B., Sanchez, A. E., Schwindt, E., South, J., Stoett, P., Verreycken, H., Vilizzi, L., Wang, Y-J., Watari, Y., Wehi, P. M., Weiperth, A., Wiberg-Larsen, P., Yapıcı, S., Yoğurtçuoğlu, B., Zenni, R. D., Galil, B. S., Dick, J. T. A., Russell, J. C., Ricciardi, A., Simberloff,, D., Bradshaw, C. J. A., and Haubrock, P. J.

Abstract

Standardized terminology in science is important for clarity of interpretation and communication. In invasion science — a dynamic and quickly evolving discipline — the rapid proliferation of technical terminology has lacked a standardized framework for its language development. The result is a convoluted and inconsistent usage of terminology, with various discrepancies in descriptions of damages and interventions. A standardized framework is therefore needed for a clear, universally applicable, and consistent terminology to promote more effective communication across researchers, stakeholders, and policymakers. Inconsistencies in terminology stem from the exponential increase in scientific publications on the patterns and processes of biological invasions authored by experts from various disciplines and countries since the 1990s, as well as publications by legislators and policymakers focusing on practical applications, regulations, and management of resources. Aligning and standardizing terminology across stakeholders remains a prevailing challenge in invasion science. Here, we review and evaluate the multiple terms used in invasion science (e.g. 'non-native', 'alien', 'invasive' or 'invader', 'exotic', 'non-indigenous', 'naturalized, 'pest') to propose a more simplified and standardized terminology. The streamlined framework we propose and translate into 28 other languages is based on the terms (i) 'non-native', denoting species transported beyond their natural biogeographic range, (ii) 'established non-native', i.e. those non-native species that have established self-sustaining populations in their new location(s) in the wild, and (iii) 'invasive non-native' — populations of established non-native species that have recently spread or are spreading rapidly in their invaded range actively or passively with or without human mediation. We also highlight the importance of conceptualizing 'spread' for classifying invasiveness and 'impact' for management. Finally, we pr

48. How strong is the effect of invasive ecosystem engineers on the distribution patterns of local species, the local and regional biodiversity and ecosystem functions?

Author

Rilov Gil, Mant Rebecca, Lyons Devin, Bulleri Fabio, Benedetti-Cecchi Lisandro, Kotta Jonne, Queirós Ana M, Chatzinikolaou Eva, Crowe Tasman, and Guy-Haim Tamar

Subjects
Biological invasions, Ecosystem engineers, Biodiversity, Ecosystem functioning, Environmental sciences, GE1-350
Abstract

Abstract Background One of the most influential forms of biological invasions is that of invasive ecosystem engineers, species that affect other biota via alterations to the abiotic environment. Such species can have wide-reaching consequences because they alter ecosystems and essentially “change the rules of existence” for a broad suites of resident biota. They thus affect resources or stressors that affect other organisms.The objective of this systematic review will be to quantify the positive and negative impacts of invasive ecosystem engineers on ecosystem structure and functioning, and to identify factors that cause their effects to vary. Methods We will search a number of online databases to gather empirical evidence from the literature on the impacts of invasive ecosystem engineers on: (1) species richness and other univariate and multivariate measures of biodiversity; (2) productivity and abundance of algae, plants, and animals; and (3) biogeochemical cycling and other flows of energy and materials, including trophic interactions. Data from relevant studies will be extracted and used in a random effects meta-analysis in order to estimate the average effect size of invasive ecosystem engineers on each response of interest.

Published
2012
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49. The effects of exotic seaweeds on native benthic assemblages: variability between trophic levels and influence of background environmental and biological conditions

Author

Bulleri Fabio, Mant Rebecca, Benedetti-Cecchi Lisandro, Chatzinikolaou Eva, Crowe Tasman, Kotta Jonne, Lyons Devin, Rilov Gil, and Maggi Elena

Subjects
Biological invasions, Seaweeds, Consumers, Human disturbance, Biodiversity, Ecosystem functioning, Environmental sciences, GE1-350
Abstract

Abstract Background Biological invasions are among the most severe threats to marine biodiversity. The impacts of introduced seaweeds on native macroalgal assemblages have been thoroughly reviewed. In contrast, no attempt has been made to synthesize the available information on the effects of exotic seaweeds on other trophic levels. In addition, it has not been clarified whether the effects of introduced seaweeds on native assemblages vary according to background physical and biological conditions. Methods This protocol provides details of our proposed method to carry out a systematic review aiming to identify and synthesize existing knowledge to answer the following primary questions: a) how does the impact of the presence of exotic seaweeds on native primary consumers (across trophic levels) compare in magnitude and extent to that observed on native primary producers (same trophic level)?; b) does the intensity of the effects of the presence of exotic seaweeds on native benthic ecosystems vary along a gradient of human disturbance (i.e. from urban/industrial areas to extra-urban areas to pristine areas)?

Published
2012
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50. What are the effects of macroalgal blooms on the structure and functioning of marine ecosystems? A systematic review protocol

Author

Lyons Devin A, Mant Rebecca C, Bulleri Fabio, Kotta Jonne, Rilov Gil, and Crowe Tasman P

Subjects
Environmental sciences, GE1-350
Abstract

Abstract Background Anthropogenic activities are believed to have caused an increase in the magnitude, frequency, and extent of macroalgal blooms in marine and estuarine environments. These blooms may contribute to declines in seagrasses and non-blooming macroalgal beds, increasing hypoxia, and reductions in the diversity of benthic invertebrates. However, they may also provide other marine organisms with food and habitat, increase secondary production, and reduce eutrophication. The objective of this systematic review will be to quantify the positive and negative impacts of anthropogenically induced macroalgal blooms in order to determine their effects on ecosystem structure and functioning, and to identify factors that cause their effects to vary. Methods We will search a number of online databases to gather empirical evidence from the literature on the impacts of macroalgal blooms on: (1) species richness and other univariate measures of biodiversity; (2) productivity and abundance of algae, plants, and animals; and (3) biogeochemical cycling and other flows of energy and materials, including trophic interactions and cross-ecosystem subsidies. Data from relevant studies will be extracted and used in a random effects meta-analysis in order to estimate the average effect of macroalgal blooms on each response of interest. Where possible, sub-group analyses will be conducted in order to evaluate how the effects of macroalgal blooms vary according to: (1) which part of the ecosystem is being studied (e.g. which habitat type, taxonomic group, or trophic level); (2) the size of blooms; (3) the region in which blooms occurred; (4) background levels of ecosystem productivity; (5) physical and chemical conditions; (6) aspects of study design and quality (e.g. lab vs. field, experimental vs. observational, degree of replication); and (7) whether the blooms are believed to be anthropogenically induced or not.

Published
2012
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