47 results on '"Carballeira R"'
Search Results
2. Paleotsunami evidence in the Bahía Inglesa coast (Atacama, Chile) based on a multi-approach analysis
- Author
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Carballeira, R., Peña-Monne, J. L., Otero, X. L., Sampietro-Vattuone, M. M., Castro-Correa, C. P., Soto-Bauerle, M. V., and Pérez-Alberti, A.
- Published
- 2022
- Full Text
- View/download PDF
3. The timing of the deglaciation in the Atlantic Iberian mountains: Insights from the stratigraphic analysis of a lake sequence in Serra da Estrela (Portugal)
- Author
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Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia y Tecnología (España), Hernández, Armand, Sáez, Alberto, Santos, Ricardo, Rodrigues, Teresa, Martin-Puertas, Celia, Gil-Romera, Graciela, Abbott, Mark, Carballeira, R., Costa, Pedro, Giralt, Santiago, Gomes, Sandra, Griffore, Melissa P., Ibañez-Insa, Jordi, Leira, M., Moreno, João, Naughton, F., Oliveira, Dulce, Raposeiro, Pedro M., Trigo, R. M., Vieira, Gonçalo, Ramos, Alexandre M., Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia y Tecnología (España), Hernández, Armand, Sáez, Alberto, Santos, Ricardo, Rodrigues, Teresa, Martin-Puertas, Celia, Gil-Romera, Graciela, Abbott, Mark, Carballeira, R., Costa, Pedro, Giralt, Santiago, Gomes, Sandra, Griffore, Melissa P., Ibañez-Insa, Jordi, Leira, M., Moreno, João, Naughton, F., Oliveira, Dulce, Raposeiro, Pedro M., Trigo, R. M., Vieira, Gonçalo, and Ramos, Alexandre M.
- Abstract
Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peixão, a pro-glacial lake in the Serra da Estrela (Central Portugal). The age–depth model relies on a Bayesian approach that includes 16 AMS C dates and Pb–CS measurements, robustly dating the lake formation at 14.7 ± 0.32 cal. ka BP. This chronological reconstruction shows an average sedimentation rate of ca. 0.07 cm yr (15 yr cm), enabling proxy analyses at decadal timescales. The sediment sequence is composed of five lithological units: (U1) coarse and unsorted fluvioglacial lacustrine deposits; (U2) massive fluvioglacial lacustrine deposits (863–790 cm below surface [bsf]; 14.7 ± 0.32–13.8 ± 0.12 cal. ka BP); (U3) water current fluvioglacial lacustrine deposits (790–766 cm bsf; 13.8 ± 0.12–12.9 ± 0.29 cal. ka BP); (U4) laminated/banded lacustrine deposits characterized by terrigenous deposits from ice-covered lake periods and episodic events of ice and snow melting (766–752 cm bsf; 12.9 ± 0.29–11.7 ± 0.15 cal. ka BP); and (U5) massive muddy lacustrine deposits (752–0 cm bsf; 11.7 ± 0.15 cal. ka BP–present). The occurrence of U2 to U4 deposits defines the transition from glacial cold (U1) to net warm postglacial conditions (U5). These climate transitions are marked by changes in sediments and the presence of very low sedimentation rate periods, possibly related to the Intra-Allerød Cold Period and the coldest phase of the Younger Dryas. Our results support the previously proposed timing of the retreat of the Serra da Estrela glaciers ca. 13.8 ± 0.12 cal. ka BP. The robust chronology of Lake Peixão highlights the potential of Iberian pro-glacial lakes for dating deglaciation processe
- Published
- 2023
4. Plastic debris in freshwater systems worldwide
- Author
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Nava, V, Aherne, J, Alfonso, MB, Antão-Geraldes, AM, Attermeyer, K, Bao, R, Bartrons, M, Berger, SA, Biernaczyk, M, Bissen, R, Brookes, J, Brown, D, Candian, G, Cañedo-Argüelles, M, Canle, M, Capelli, C, Carballeira, R, Cereijo, JL, Chawchai, S, Chen, G, Christensen, ST, Christoffersen, KS, de Eyto, E, Delgado, J, Dornan, T, Doubek, JP, Dusaucy, J, Erina, O, Ersoy, Z, Feuchtmayr, H, Lepori, F, Frezzotti, ML, Galafassi, S, Gateuille, D, Gonçalves, V, Grossart, HP, Hamilton, DP, Harris, T, Kangur, K, Kankılıç, GB, Kessler, R, Kiel, C, Krynak, EM, Leiva-Presa, A, Matias, M, Matsuzaki, SS, McElarney, Y, Mitchell, M, Messyasz, B, Mlambo, M, Motitsoe, SN, Owens, C, Özkundakci, D, Pinnow, S, Pociecha, A, Raposeiro, P, Rõõm, EI, Rotta, F, Salmaso, N, Scordo, F, Sibomana, C, Siewert, D, Stepanowska, K, Sudeep, C, Tavşanoğlu, UN, Tereshina, M, Thompson, J, Tolotti, M, Valois, A, Verburg, P, Wesolek, B, Weyhenmeyer, G, Wu, N, Zawisza, E, Zink, L, Leoni, B, Nava, V, Aherne, J, Alfonso, M, Antão-Geraldes, A, Attermeyer, K, Bao, R, Bartrons, M, Berger, S, Biernaczyk, M, Bissen, R, Brookes, J, Brown, D, Candian, G, Cañedo-Argüelles, M, Canle, M, Capelli, C, Carballeira, R, Cereijo, J, Chawchai, S, Chen, G, Christensen, S, Christoffersen, K, de Eyto, E, Delgado, J, Dornan, T, Doubek, J, Dusaucy, J, Erina, O, Ersoy, Z, Feuchtmayr, H, Lepori, F, Frezzotti, M, Galafassi, S, Gateuille, D, Gonçalves, V, Grossart, H, Hamilton, D, Harris, T, Kangur, K, Kankılıç, G, Kessler, R, Kiel, C, Krynak, E, Leiva-Presa, A, Matias, M, Matsuzaki, S, Mcelarney, Y, Mitchell, M, Messyasz, B, Mlambo, M, Motitsoe, S, Owens, C, Özkundakci, D, Pinnow, S, Pociecha, A, Raposeiro, P, Rõõm, E, Rotta, F, Salmaso, N, Scordo, F, Sibomana, C, Siewert, D, Stepanowska, K, Sudeep, C, Tavşanoğlu, U, Tereshina, M, Thompson, J, Tolotti, M, Valois, A, Verburg, P, Wesolek, B, Weyhenmeyer, G, Wu, N, Zawisza, E, Zink, L, and Leoni, B
- Subjects
reservoir ,limnology ,Settore BIO/07 - ECOLOGIA ,pollution ,lake ,microplastic - Published
- 2022
5. Dinámica de los sistemas dunares costeros ante el Cambio Global: La necesidad de una gestión sostenible.
- Author
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Hernández, A., González-Villanueva, R., Carballeira, R., Bao, R., and Sáez, A.
- Subjects
EXTREME weather ,ANTHROPOGENIC effects on nature ,COASTAL zone management ,BIODIVERSITY conservation ,COASTAL biodiversity ,DYNAMIC balance (Mechanics) ,EROSION - Abstract
Copyright of Cuaternario y Geomorfología is the property of Cuaternario y Geomorfologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
6. Changes in heterotrophic microbial communities induced by biocidal treatments in the Monastery of San Martiño Pinario (Santiago de Compostela, NW Spain)
- Author
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Sanmartín, P., primary and Carballeira, R., additional
- Published
- 2021
- Full Text
- View/download PDF
7. Characterization of a biofilm and the pattern outlined by its growth on a granite-built cloister in the Monastery of San Martiño Pinario (Santiago de Compostela, NW Spain)
- Author
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Sanmartín, P., primary, Villa, F., additional, Cappitelli, F., additional, Balboa, S., additional, and Carballeira, R., additional
- Published
- 2020
- Full Text
- View/download PDF
8. Extreme climatic events in the North Atlantic-European sector and their link to modes of variability during the last two millennia
- Author
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Hernández, Armand, Raposeiro, Pedro Miguel, Leira, Manel, Carballeira, R., Benavente-Marín, Mario, de Boer, E.J., Comas-Bru, Laia, Trigo, Ricardo M., Gonçalves, Vítor, Pla-Rabes, Sergi, Sáez, Alberto, Bao, Roberto, Giralt, Santiago, and Ministerio de Economía y Competitividad (España)
- Subjects
Quaternary - Abstract
20th Congress of the International Union for Quaternary Research (INQUA) in Dublin, Ireland, 25-31 July 2019, Future climate change scenarios suggest an increase of extreme climatic events in southern Europe, especially those associated with anomalous rainfall conditions (i.e., droughts and floods), which often cause major negative economic and social impacts. However, climate model simulations still include large uncertainties in the reproduction of flood and drought recurrences, partly due to the large internal variability that characterises the climate of the mid to high latitudes of the Northern Hemisphere. Therefore, it is necessary the use of hydrological reconstructions to: i) establish the baseline conditions prior to the current Climate Change and ii) investigate the previous analogous warm periods (e.g., Roman Warm Period and Medieval Climate Anomaly) to infer the future behaviour of extreme climatic events and provide clues under the prevalence of which large-scale atmospheric and oceanic patterns occur these extreme events. The most prominent atmospheric pattern in mid to high latitudes of the Northern Hemisphere is the North Atlantic Oscillation (NAO). Nevertheless, the NAO is not the only mode that affects the North Atlantic-European sector climate regime. Here, we present the hydrological balance of two southern regions of the North Atlantic European sector (i.e., Azores Archipelago and Iberian Peninsula) using lacustrine sedimentary records to determine the spatio-temporal evolution of hydrological extremes and their relationship with large-scale modes of climate variability. Our main hypothesis is that large-scale climate variability other than the NAO have modulated extreme climatic events in the North Atlantic-European sector during the Common Era. Our results make evident that different interactions between the NAO and other large-scale atmospheric and oceanic patterns explain local climate conditions and spatial differences during enhanced flooding and droughts periods. These lacustrine records show that above-average rainfall conditions are linked to the negative phases of both the NAO and the Atlantic Multidecadal Oscillation (AMO), while background and drought conditions preferentially occur under positive NAO and AMO phases. These results highlight that, although the hydrological regime in this area is clearly influenced by the NAO, the low frequency AMO also plays a key role at decadal to centennial time-scales. Moreover, other climate patterns, such as the East Atlantic (EA) and Scandinavian (SCA) patterns, could also modulate the geographical position of the NAO action centres, thus affecting the strength and latitudinal position of the dominant westerlies crossing the North Atlantic sector. Our results provide an evidence of the importance of considering other patterns than the NAO to explain palaeohydrological variability in the North Atlantic European sector This research is funded through a Beatriu de Pinós¿Marie Curie COFUND contract within the framework of the FLOODES2k (2016 BP 00023), PaleoModes (CGL2016-75281-C2), HOLMODRIVE (PTDC/CTA-GEO/29029/2018) and DISCOVERAZORES (PTDC/CTA-AMB/28511/2017) projects., This research is funded through a Beatriu de Pinós–Marie Curie COFUND contract within the framework of the FLOODES2k (2016 BP 00023), PaleoModes (CGL2016-75281-C2), HOLMODRIVE (PTDC/CTA-GEO/29029/2018) and DISCOVERAZORES (PTDC/CTA-AMB/28511/2017) projects.
- Published
- 2019
9. Coastal barriers and transgressive dune fields fronting perched lakes: The Northwest Iberia case study
- Author
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Gonzalez-Villanueva, Rita, Hernández, Armand, Costas, Susana, Carballeira, R., Cabello, Patricia, Bao, Roberto, Pérez-Arlucea, Marta, Sáez, Alberto, and Xunta de Galicia
- Subjects
Iberia - Abstract
Rocky and indented coasts host a large number of sedimentary features that typically develop associated with the irregular nature of these coasts, such as small perched lakes and bay-mouth or mid-bay barriers. Besides, the position of these basins relative to mean sea level and the occurrence of infilling transgressive aeolian deposits favor the preservation of valuable sedimentary archives that may contribute to reconstructing the coast evolution over the past, as well as to seed some light over changing regional wind field or storminess regimes. Here, two examples of coastal barriers and transgressive dune fields fronting perched lakes (Traba and Doniños, Galicia, NW Iberia), are investigated to decipher the main processes controlling their evolution. For that, Ground Penetrating Radar and borehole transects were collected to characterize the sedimentary architecture of both systems. Selected samples were dated using both accelerated mass spectrometry radiocarbon and optically stimulated luminescence dating techniques. Five dominant radar facies (Rf) and four radar surfaces (Rs) were identified within the radargrams. The identified Rf fall into two groups: (i) inclined reflections and (ii) horizontal to subhorizontal reflections. These Rf are interpreted as transgressive dunes (Rf-1), foredunes (Rf-2), channel infilling (Rf-3), scour and fill structures (Rf-4) and aeolian dune deposits with vertical aggradation or lateral accretion (Rf-5). The identified Rs are grouped into two main types: (i) erosive surfaces and (ii) boundary surfaces. Rs are interpreted as dune scarps (Rs-1), incised channels (Rs-2), water-table (Rs-3) and centimeter-thick layers of organic-rich sediments (Rs-4). A preliminary conceptual model is suggested to explain their onset and evolution, integrating all available information from both sites. The onset of the system is marked by the anchoring of the barriers ca. 4000 BC and the subsequent formation of a dune field through the inland migration of transgressive dunes starting ca. 3000 BC. This inland migration was not a continuous process, as documented by the presence of interbedding organic-rich layers. They may indicate the temporary cessation of aeolian activity but might have also been related to the fragmentation of a former coastal barrier through the formation of erosive features within the foredunes as blowouts driven by the impact of frequent and intense storms. The latter could also be responsible for the eventual overwash and inundation of barriers as suggested by the sedimentary record. Ancient human intervention opening the barriers can however not be completely disregarded. The timing of the formation of the different transgressive dune pulses and overwash deposits will be further investigated in order to construct a more constrained storminess chronology within the explored region., This research is a contribution to projects 08MDS036000PR funded by the Xunta de Galicia and PaleoModes (CGL2016-75281-C2). R. González-Villanueva was founded by the Xunta de Galicia Post-Doctoral Fellowship (PlanI2C-ED481B 2018/021).
- Published
- 2019
10. Extreme climatic events in the North Atlantic-European sector and their link to modes of variability during the last two millennia
- Author
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Ministerio de Economía y Competitividad (España), Hernández, Armand, Raposeiro, Pedro Miguel, Leira, Manel, Carballeira, R., Benavente-Marín, Mario, de Boer, E.J., Comas-Bru, Laia, Trigo, Ricardo M., Gonçalves, Vítor, Pla-Rabes, Sergi, Sáez, Alberto, Bao, Roberto, Giralt, Santiago, Ministerio de Economía y Competitividad (España), Hernández, Armand, Raposeiro, Pedro Miguel, Leira, Manel, Carballeira, R., Benavente-Marín, Mario, de Boer, E.J., Comas-Bru, Laia, Trigo, Ricardo M., Gonçalves, Vítor, Pla-Rabes, Sergi, Sáez, Alberto, Bao, Roberto, and Giralt, Santiago
- Abstract
Future climate change scenarios suggest an increase of extreme climatic events in southern Europe, especially those associated with anomalous rainfall conditions (i.e., droughts and floods), which often cause major negative economic and social impacts. However, climate model simulations still include large uncertainties in the reproduction of flood and drought recurrences, partly due to the large internal variability that characterises the climate of the mid to high latitudes of the Northern Hemisphere. Therefore, it is necessary the use of hydrological reconstructions to: i) establish the baseline conditions prior to the current Climate Change and ii) investigate the previous analogous warm periods (e.g., Roman Warm Period and Medieval Climate Anomaly) to infer the future behaviour of extreme climatic events and provide clues under the prevalence of which large-scale atmospheric and oceanic patterns occur these extreme events. The most prominent atmospheric pattern in mid to high latitudes of the Northern Hemisphere is the North Atlantic Oscillation (NAO). Nevertheless, the NAO is not the only mode that affects the North Atlantic-European sector climate regime. Here, we present the hydrological balance of two southern regions of the North Atlantic European sector (i.e., Azores Archipelago and Iberian Peninsula) using lacustrine sedimentary records to determine the spatio-temporal evolution of hydrological extremes and their relationship with large-scale modes of climate variability. Our main hypothesis is that large-scale climate variability other than the NAO have modulated extreme climatic events in the North Atlantic-European sector during the Common Era. Our results make evident that different interactions between the NAO and other large-scale atmospheric and oceanic patterns explain local climate conditions and spatial differences during enhanced flooding and droughts periods. These lacustrine records show that above-average rainfall conditions are linked to t
- Published
- 2019
11. Coastal barriers and transgressive dune fields fronting perched lakes: The Northwest Iberia case study
- Author
-
Xunta de Galicia, Gonzalez-Villanueva, Rita, Hernández, Armand, Costas, Susana, Carballeira, R., Cabello, Patricia, Bao, Roberto, Pérez-Arlucea, Marta, Sáez, Alberto, Xunta de Galicia, Gonzalez-Villanueva, Rita, Hernández, Armand, Costas, Susana, Carballeira, R., Cabello, Patricia, Bao, Roberto, Pérez-Arlucea, Marta, and Sáez, Alberto
- Abstract
Rocky and indented coasts host a large number of sedimentary features that typically develop associated with the irregular nature of these coasts, such as small perched lakes and bay-mouth or mid-bay barriers. Besides, the position of these basins relative to mean sea level and the occurrence of infilling transgressive aeolian deposits favor the preservation of valuable sedimentary archives that may contribute to reconstructing the coast evolution over the past, as well as to seed some light over changing regional wind field or storminess regimes. Here, two examples of coastal barriers and transgressive dune fields fronting perched lakes (Traba and Doniños, Galicia, NW Iberia), are investigated to decipher the main processes controlling their evolution. For that, Ground Penetrating Radar and borehole transects were collected to characterize the sedimentary architecture of both systems. Selected samples were dated using both accelerated mass spectrometry radiocarbon and optically stimulated luminescence dating techniques. Five dominant radar facies (Rf) and four radar surfaces (Rs) were identified within the radargrams. The identified Rf fall into two groups: (i) inclined reflections and (ii) horizontal to subhorizontal reflections. These Rf are interpreted as transgressive dunes (Rf-1), foredunes (Rf-2), channel infilling (Rf-3), scour and fill structures (Rf-4) and aeolian dune deposits with vertical aggradation or lateral accretion (Rf-5). The identified Rs are grouped into two main types: (i) erosive surfaces and (ii) boundary surfaces. Rs are interpreted as dune scarps (Rs-1), incised channels (Rs-2), water-table (Rs-3) and centimeter-thick layers of organic-rich sediments (Rs-4). A preliminary conceptual model is suggested to explain their onset and evolution, integrating all available information from both sites. The onset of the system is marked by the anchoring of the barriers ca. 4000 BC and the subsequent formation of a dune field through the inland migrat
- Published
- 2019
12. Formation and evolution of back‐barrier perched lakes in rocky coasts: An example of a Holocene system in north‐west Spain
- Author
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Ministerio de Economía y Competitividad (España), Fundação para a Ciência e a Tecnologia (Portugal), Hernández, Armand [0000-0001-7245-9863], Valero-Garcés, Blas L. [0000-0003-2214-7057], Sáez, Alberto, Carballeira, R., Pueyo Mur, Juan José, Vázquez-Loureiro, D., Leira, Manel, Hernández, Armand, Valero-Garcés, Blas L., Bao, Roberto, Ministerio de Economía y Competitividad (España), Fundação para a Ciência e a Tecnologia (Portugal), Hernández, Armand [0000-0001-7245-9863], Valero-Garcés, Blas L. [0000-0003-2214-7057], Sáez, Alberto, Carballeira, R., Pueyo Mur, Juan José, Vázquez-Loureiro, D., Leira, Manel, Hernández, Armand, Valero-Garcés, Blas L., and Bao, Roberto
- Abstract
Coastal back‐barrier perched lakes are freshwater bodies that are elevated over sea‐level and are not directly subjected to the inflow of seawater. This study provides a detailed reconstruction of the Doniños back‐barrier perched lake that developed at the end of a small river valley in the rocky coast of the north‐west Iberian Peninsula during the Holocene transgression. Its sequence stratigraphy was reconstructed based on a core transect across the system, the analyses of its lithofacies and microfossil assemblages, and a high‐resolution radiocarbon‐based chronology. The Doniños perched lake was formed ca 4·5 ka bp. The setting of the perched lake was favoured by Late Holocene sea‐level stabilization and the formation of a barrier and back‐barrier basin, which was contemporaneous with the high systems tract period. This basin developed over marine and lagoonal sediments deposited between 10·2 ka bp and 8·0 ka bp, during rapidly rising sea‐level characteristic of the transgressive systems track period. At 1·1 ka bp, the barrier was breached and the perched lake was partially emptied, causing the erosion of the back‐barrier basin sediments and a significant sedimentary hiatus. Both enhanced storminess and human intervention were likely to be responsible for this event. After 1 ka bp, the barrier reclosed and the present‐day lake was reformed, with the water level reaching as high as 5 m above mean sea‐level. The depositional evolution of the Doniños system serves as a model of coastal back‐barrier perched lakes in coastal clastic systems that have developed over gently seaward‐dipping rugged substrates at small distances from the shoreline and under conditions of rising sea‐level and high sediment supply. A review of estuaries, back‐barrier lagoons, pocket beaches and back‐barrier perched lakes in the rocky coast of north‐west Spain shows that the elevation of the bedrock is the main factor controlling the origin and evolution of these systems.
- Published
- 2018
13. A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins
- Author
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European Cooperation in Science and Technology, Hernández, Armand [0000-0001-7245-9863], Mantzouki, E., Campbell, James, van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, Alinne, Maronić, D.Š., Stević, F., Hiskia, A., Gkelis, S., Walusiak, E., Panou, M., McCarthy, V., Budzyńska, A., Perello, V.C., Kostrzewska-Szlakowska, I., Gonçalves, V., Skjelbred, B., Palomino, Roberto L., Obertegger, U., Boscaini, A., Flaim, G., Salmaso, N., Gagala, I., Cerasino, L., Mankiewicz-Boczek, J., Hansson, L. A., Grabowska, M., Karpowicz, M., Rodríguez-Pérez, E., Chmura, D., Nawrocka, L., Kozak, A., Kobos, J., Rosińska, J., Seelen, L., Toporowska, M., Pawlik-Skowronska, B., Urrutia-Cordero, Pablo, Niedźwiecki, M., Maliaka, V., Pęczuła, W., Wasilewicz, M., Napiórkowska-Krzebietke, A., Ochocka, A., Beklioğlu, M., Szeląg-Wasielewska, E., Domek, P., Teurlincx, S., Jakubowska-Krepska, N., Tavşanoğlu, ÜN., Carballeira, R., Kwasizur, K., Drastichova, I., Messyasz, B., Chomova, L., Soylu, E.N., Pasztaleniec, A., Jasser, I., Filiz, N., Antão-Geraldes, A. M., Bilgin, F., Camacho, A., Özen, A., Leira, M., Hernández, Armand, Vasconcelos, V., Remec-Rekar, S., Pfeiffer, T.Ž., Eleršek, Tina, Delgado-Martín, Jordi, Yağcı, M.A., García, D., Bezirci, G., Bláha, L., Bravo, Andrea G., Verstijnen, Y., Cereijo, J. L., Gomà, Joan, Trapote, M.C., Vegas-Vilarrúbia, Teresa, Obrador, B., García-Murcia, A., Real, M., Picazo, Antoni, Vucelić, I.B., Romans, E., Cesur, M., Çınar, Ş., Lürling, M., Levi, E., Noguero-Ribes, J., Duque, D.P., Fernández-Morán, E., Úbeda, B., Yağcı, A., Gálvez, J.Á., Marcé, Rafael, Catalán, N., Buck, Moritz, Pérez-Martínez, Carmen, Ramos-Rodríguez, E., Tsiarta, N., Žutinić, P., Iskin, U., Çapkın, K., Udovič, M.G., Cillero-Castro, C., Moreno-Ostos, Enrique, Blanco, J. M., Rodríguez, V., Plenković-Moraj, Anđelka, Montes-Pérez, J.J., Colom-Montero, W., Koreivienė, J., Rochera, C., Santamans, A. C., Ferriol, C., Romo, S., Faassen, E.J., Soria, J. M., Latour, D., Mazur-Marzec, Hanna, Mustonen, K., Pierson, D., Kasperovičienė, J., Yang, Y., Verspagen, Jolanda M. H., Çelik, K., de Senerpont Domis, L.N., Özhan, K., Dunalska, J., Carey, C.C., Paerl, Hans, Alcaraz-Párraga, P., Torokne, A., Goldyn, R., Karan, T., Bulut, C., Demir, N., Uysal, R., Pełechata, A., Karakaya, N., Koçer, M.A.T., Sieńska, J., Yilmaz, M., Bańkowska-Sobczak, A., Savadova, K., Maraşlıoğlu, F., Geriš, R., Fakioglu, Ö., Fránková, M., Morais, J., Köker, L., Bergkemper, V., Pełechaty, M., O'Leary, S., Nemova, H., Vitonytė, I., Wilk-Woźniak, E., Beirne, E., Cromie, H., Ibelings, Bas W., Christoffersen, K. S., Warming, T.P., Feldmann, T., Laas, A., Vale, M., Panksep, K., Frąk, M., Kokocinski, M., Krztoń, W., Szymański, D., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Haande, S., Rothhaupt, K. O., Fonvielle, J., Krstić, S., Raposeiro, P. M., Kruk, M., Madrecka, B., Grossart, Hans-Peter, Avagianos, C., Kaloudis, T., Triantis, T., Aleksovski, B., Zervou, S. K., European Cooperation in Science and Technology, Hernández, Armand [0000-0001-7245-9863], Mantzouki, E., Campbell, James, van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, Alinne, Maronić, D.Š., Stević, F., Hiskia, A., Gkelis, S., Walusiak, E., Panou, M., McCarthy, V., Budzyńska, A., Perello, V.C., Kostrzewska-Szlakowska, I., Gonçalves, V., Skjelbred, B., Palomino, Roberto L., Obertegger, U., Boscaini, A., Flaim, G., Salmaso, N., Gagala, I., Cerasino, L., Mankiewicz-Boczek, J., Hansson, L. A., Grabowska, M., Karpowicz, M., Rodríguez-Pérez, E., Chmura, D., Nawrocka, L., Kozak, A., Kobos, J., Rosińska, J., Seelen, L., Toporowska, M., Pawlik-Skowronska, B., Urrutia-Cordero, Pablo, Niedźwiecki, M., Maliaka, V., Pęczuła, W., Wasilewicz, M., Napiórkowska-Krzebietke, A., Ochocka, A., Beklioğlu, M., Szeląg-Wasielewska, E., Domek, P., Teurlincx, S., Jakubowska-Krepska, N., Tavşanoğlu, ÜN., Carballeira, R., Kwasizur, K., Drastichova, I., Messyasz, B., Chomova, L., Soylu, E.N., Pasztaleniec, A., Jasser, I., Filiz, N., Antão-Geraldes, A. M., Bilgin, F., Camacho, A., Özen, A., Leira, M., Hernández, Armand, Vasconcelos, V., Remec-Rekar, S., Pfeiffer, T.Ž., Eleršek, Tina, Delgado-Martín, Jordi, Yağcı, M.A., García, D., Bezirci, G., Bláha, L., Bravo, Andrea G., Verstijnen, Y., Cereijo, J. L., Gomà, Joan, Trapote, M.C., Vegas-Vilarrúbia, Teresa, Obrador, B., García-Murcia, A., Real, M., Picazo, Antoni, Vucelić, I.B., Romans, E., Cesur, M., Çınar, Ş., Lürling, M., Levi, E., Noguero-Ribes, J., Duque, D.P., Fernández-Morán, E., Úbeda, B., Yağcı, A., Gálvez, J.Á., Marcé, Rafael, Catalán, N., Buck, Moritz, Pérez-Martínez, Carmen, Ramos-Rodríguez, E., Tsiarta, N., Žutinić, P., Iskin, U., Çapkın, K., Udovič, M.G., Cillero-Castro, C., Moreno-Ostos, Enrique, Blanco, J. M., Rodríguez, V., Plenković-Moraj, Anđelka, Montes-Pérez, J.J., Colom-Montero, W., Koreivienė, J., Rochera, C., Santamans, A. C., Ferriol, C., Romo, S., Faassen, E.J., Soria, J. M., Latour, D., Mazur-Marzec, Hanna, Mustonen, K., Pierson, D., Kasperovičienė, J., Yang, Y., Verspagen, Jolanda M. H., Çelik, K., de Senerpont Domis, L.N., Özhan, K., Dunalska, J., Carey, C.C., Paerl, Hans, Alcaraz-Párraga, P., Torokne, A., Goldyn, R., Karan, T., Bulut, C., Demir, N., Uysal, R., Pełechata, A., Karakaya, N., Koçer, M.A.T., Sieńska, J., Yilmaz, M., Bańkowska-Sobczak, A., Savadova, K., Maraşlıoğlu, F., Geriš, R., Fakioglu, Ö., Fránková, M., Morais, J., Köker, L., Bergkemper, V., Pełechaty, M., O'Leary, S., Nemova, H., Vitonytė, I., Wilk-Woźniak, E., Beirne, E., Cromie, H., Ibelings, Bas W., Christoffersen, K. S., Warming, T.P., Feldmann, T., Laas, A., Vale, M., Panksep, K., Frąk, M., Kokocinski, M., Krztoń, W., Szymański, D., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Haande, S., Rothhaupt, K. O., Fonvielle, J., Krstić, S., Raposeiro, P. M., Kruk, M., Madrecka, B., Grossart, Hans-Peter, Avagianos, C., Kaloudis, T., Triantis, T., Aleksovski, B., and Zervou, S. K.
- Abstract
Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.
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- 2018
14. Iberian acid peatlands: types, origin and general trends of development
- Author
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Pontevedra Pombal, Xabier, Castro, Daniel, Carballeira, R., Souto Salom, Manuel, López Sáez, José Antonio, Pérez Díaz, Sebastián, Fraga, María Isabel, Valcárcel Díaz, Marcos, García-Rodeja Gayoso, E., Universidad de Cantabria, Universidade de Santiago de Compostela. Departamento de Botánica, Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola, Ministerio de Economía y Competitividad (España), Xunta de Galicia, Junta de Andalucía, Pérez Díaz, Sebastián [0000-0002-2702-0058], López Sáez, José Antonio [0000-0002-3122-2744], Pontevedra Pombal, Xabier [0000-0002-1095-6167], Valcárcel Díaz, Marcos [0000-0001-6650-0858], García Rodeja, Eduardo [0000-0002-9553-0711], Pérez Díaz, Sebastián, López Sáez, José Antonio, Pontevedra Pombal, Xabier, Valcárcel Díaz, Marcos, and García Rodeja, Eduardo
- Subjects
Peat accumulation ,distribution of mires ,Distribution of mires ,Holocene ,peat accumulation ,lcsh:QH540-549.5 ,lcsh:Ecology ,chronology ,Chronology ,Iberian Peninsula - Abstract
In the present study we reviewed the genesis, development and classification of peatlands in the Iberian Peninsula by conducting chronostratigraphic analysis of 108 of these ecosystems. The findings are summarised as follows: 1. The region has a wide variety of peatlands which are classified according to their biogeochemical, geomorphological and ecological characteristics into different types of bogs and fens. 2. Most of the peatlands occur in the Atlantic region followed by the Mediterranean and Alpine regions. Fens are more widely distributed than bogs, and blanket and raised bogs are mainly found in the Eurosiberian biogeographical region. 3. In many of the fens, the last active peat-forming cycle occurred during the Late Holocene (43 %). In most of the bogs, the peat-forming cycle occurred in the Middle Holocene (70 %), although in a substantial proportion of blanket bogs these processes occurred in the Early Holocene (30 %). 4. The peat formed in the last active cycle is, on average, thicker in raised bogs (322 cm) than in blanket bogs (257 cm) and fens (156 cm). 5. Vertical peat accumulation rates varied between 16 and 30 yr cm-1 in more than 40 % of the peatlands. The accumulation rates differed significantly between the different types of peatlands and were highest in the raised bogs. The accumulation rates were very variable in the fens. 6. The genesis, evolution and types of Iberian peatlands are similar to those observed in peatlands in northern latitudes in Europe and North America Our research has been made possible by the following project grants: INCITE09-200-019-PR (Xunta de Galicia Government); DESIRÈHAR2013-43701-P (Spanish Ministry of Economy and Competitiveness); and Relictflora-P11-RNM7033 (Excellence Research Projects Program from the Andalusian Government) SI
- Published
- 2017
15. Attheya armata along the European Atlantic coast – The turn of the screw on the causes of “surf diatom”
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Carballeira, R., primary, Leira, M., additional, López-Rodríguez, M.C., additional, and Otero, X.L., additional
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- 2018
- Full Text
- View/download PDF
16. Iberian acid peatlands: types, origin and general trends of development.
- Author
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Ministerio de Economía y Competitividad (España), Xunta de Galicia, Junta de Andalucía, Pérez Díaz, Sebastián [0000-0002-2702-0058], López Sáez, José Antonio [0000-0002-3122-2744], Pontevedra Pombal, Xabier [0000-0002-1095-6167], Valcárcel Díaz, Marcos [0000-0001-6650-0858], García Rodeja, Eduardo [0000-0002-9553-0711], Pontevedra Pombal, Xabier, Castro, Daniel, Carballeira, R., Souto Salom, Manuel, López Sáez, José Antonio, Pérez Díaz, Sebastián, Fraga, María Isabel, Valcárcel Díaz, Marcos, García-Rodeja Gayoso, E., Ministerio de Economía y Competitividad (España), Xunta de Galicia, Junta de Andalucía, Pérez Díaz, Sebastián [0000-0002-2702-0058], López Sáez, José Antonio [0000-0002-3122-2744], Pontevedra Pombal, Xabier [0000-0002-1095-6167], Valcárcel Díaz, Marcos [0000-0001-6650-0858], García Rodeja, Eduardo [0000-0002-9553-0711], Pontevedra Pombal, Xabier, Castro, Daniel, Carballeira, R., Souto Salom, Manuel, López Sáez, José Antonio, Pérez Díaz, Sebastián, Fraga, María Isabel, Valcárcel Díaz, Marcos, and García-Rodeja Gayoso, E.
- Published
- 2017
17. Enfermedad de Behçet asociada a déficit de corticotropina
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Sánchez Sobrino P, Palmeiro Carballeira R, Lamas Ferreiro Jl, Páramo Fernández C, Mantiñán Gil B, and García-Mayor Rv
- Subjects
medicine.medical_specialty ,Hypophysitis ,business.industry ,Behcet disease ,Endocrinology, Diabetes and Metabolism ,medicine.disease ,Gastroenterology ,stomatognathic diseases ,Endocrinology ,Internal medicine ,medicine ,Adrenal insufficiency ,Isolated ACTH deficiency ,business - Abstract
We report a case of a patient with longstanding Behcet disease, with neurological symptoms predominantly, who became hospitalized for adrenal insufficiency, caused by isolated deficiency of corticotropin (DAACTH). DAACTH is a typical characteristic of hypophysitis, reported in association with many autoimmune diseases. Nevertheless, hypothalamic-pituitary injury in Behcet disease is exceptional. We review the literature and possible mechanisms of this association until now not reported.
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- 2009
18. Properties of capsaicinoids for the control of fungi pathogenic to pepper
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Veloso, J., Prego, C., Varela, M.M. (Marta María), Carballeira, R., Ramos-Bernal, J.A. (Juan Antonio), Merino, F., and Díaz, J.
- Abstract
2
- Published
- 2013
19. Spirodela polyrhiza (L.) Schleid. (Lemnaceae): primera cita para Galicia (NO de la Península Ibérica)
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Carballeira, R., Rocha, R., and Sahuquillo, E.
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Lemnaceae Martinov ,Galicia - Abstract
La familia Lemnaceae Martinov incluye monocotiledóneas propias de aguas continentales que viven flotando libremente o sumergidas. Se trata de un grupo de plantas que, debido a su reducido tamaño y particular morfología, presentan una compleja taxonomía lo que dificulta su identificación. Esta familia comprende 6 géneros de los que tres −Lemna L., Spirodela Schleid. y Wolffia Horkel ex Schleid− han sido citados para la Península Ibérica (Galán de Mera & Castroviejo, 2007). En Galicia, hasta el momento, sólo viven dos especies de Lemna: L. minor L., en las cuatro provincias gallegas y L. giba L., esta última únicamente en Lugo y Ourense.
- Published
- 2010
20. Expresión de una sesquiterpeno ciclasa (casc1) en plantas de pimiento obtenidas de un programa de mejora genética de la resistencia frente a Phytophthora
- Author
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Veloso, J., Carballeira, R., Rivera Martínez, A., Taboada, A., Moreno-González, J., Ares, José Luis Andrés, Ascasíbar, J., and Díaz, J.
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- 2010
- Full Text
- View/download PDF
21. Properties of capsaicinoids for the control of fungi and oomycetes pathogenic to pepper
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Veloso, J., primary, Prego, C., additional, Varela, M. M., additional, Carballeira, R., additional, Bernal, A., additional, Merino, F., additional, and Díaz, J., additional
- Published
- 2013
- Full Text
- View/download PDF
22. Properties of capsaicinoids for the control of fungi and oomycetes pathogenic to pepper.
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Veloso, J., Prego, C., Varela, M. M., Carballeira, R., Bernal, A., Merino, F., Díaz, J., and Papen, H.
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CAPSAICINOIDS ,EFFECT of fungicides on plants ,OOMYCETES ,PATHOGENIC fungi ,PEPPER diseases & pests ,ANTI-infective agents ,BIOLOGICAL assay ,PLANT defenses ,PLANT genes - Abstract
Capsaicinoids are pungent compounds found in pepper ( Capsicum spp.) fruits. Capsaicin showed antimicrobial activity in plate assays against seven isolates of five species of fungi and nine isolates of two species of oomycetes. The general trend was that oomycetes were more inhibited than fungi. Assays of capsaicin biosynthetic precursors suggest that the lateral chain of capsaicinoids has more inhibitory activity than the phenolic part. In planta tests of capsaicinoids (capsaicin and N-vanillylnonanamide) applied to the roots demonstrated that these compounds conferred protection against the pathogenic fungus Verticillium dahliae and induced both chitinase activity and expression of several defence-related genes, such as CASC1, CACHI2 and CABGLU. N- Vanillylnonanamide infiltrated into cotyledons confers systemic protection to the upper leaves of pepper against the fungal pathogen Botrytis cinerea. In wild-type tomato plants such cotyledon infiltration has no protective effect, but is effective in the Never-ripe tomato mutant impaired in ethylene response. A similar effect was observed in tomato after salicylic acid infiltration. [ABSTRACT FROM AUTHOR]
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- 2014
- Full Text
- View/download PDF
23. Spirodela polyrhiza (L.) Schleid. (Lemnaceae): primera cita para Galicia (NO de la Península Ibérica).
- Author
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Carballeira, R., Rocha, V., and Sahuquillo, E.
- Published
- 2011
24. Plastic debris in lakes and reservoirs
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Nava, Veronica, Chandra, Sudeep, Aherne, Julian, Alfonso, María B, Antão-Geraldes, Ana M, Attermeyer, Katrin, Bao, Roberto, Bartrons, Mireia, Berger, Stella A, Biernaczyk, Marcin, Bissen, Raphael, Brookes, Justin D, Brown, David, Cañedo-Argüelles, Miguel, Canle, Moisés, Capelli, Camilla, Carballeira, Rafael, Cereijo, José Luis, Chawchai, Sakonvan, Christensen, Søren T, Christoffersen, Kirsten S, de Eyto, Elvira, Delgado, Jorge, Dornan, Tyler N, Doubek, Jonathan P, Dusaucy, Julia, Erina, Oxana, Ersoy, Zeynep, Feuchtmayr, Heidrun, Frezzotti, Maria Luce, Galafassi, Silvia, Gateuille, David, Gonçalves, Vitor, Grossart, Hans-Peter, Hamilton, David P, Harris, Ted D, Kangur, Külli, Kankılıç, Gökben Başaran, Kessler, Rebecca, Kiel, Christine, Krynak, Edward M, Leiva-Presa, Àngels, Lepori, Fabio, Matias, Miguel G, Matsuzaki, Shin-Ichiro S, McElarney, Yvonne, Messyasz, Beata, Mitchell, Mark, Mlambo, Musa C, Motitsoe, Samuel N, Nandini, Sarma, Orlandi, Valentina, Owens, Caroline, Özkundakci, Deniz, Pinnow, Solvig, Pociecha, Agnieszka, Raposeiro, Pedro Miguel, Rõõm, Eva-Ingrid, Rotta, Federica, Salmaso, Nico, Sarma, S S S, Sartirana, Davide, Scordo, Facundo, Sibomana, Claver, Siewert, Daniel, Stepanowska, Katarzyna, Tavşanoğlu, Ülkü Nihan, Tereshina, Maria, Thompson, James, Tolotti, Monica, Valois, Amanda, Verburg, Piet, Welsh, Brittany, Wesolek, Brian, Weyhenmeyer, Gesa A, Wu, Naicheng, Zawisza, Edyta, Zink, Lauren, Leoni, Barbara, Nava, V, Chandra, S, Aherne, J, Alfonso, M, Antão-Geraldes, A, Attermeyer, K, Bao, R, Bartrons, M, Berger, S, Biernaczyk, M, Bissen, R, Brookes, J, Brown, D, Cañedo-Argüelles, M, Canle, M, Capelli, C, Carballeira, R, Cereijo, J, Chawchai, S, Christensen, S, Christoffersen, K, de Eyto, E, Delgado, J, Dornan, T, Doubek, J, Dusaucy, J, Erina, O, Ersoy, Z, Feuchtmayr, H, Frezzotti, M, Galafassi, S, Gateuille, D, Gonçalves, V, Grossart, H, Hamilton, D, Harris, T, Kangur, K, Kankılıç, G, Kessler, R, Kiel, C, Krynak, E, Leiva-Presa, À, Lepori, F, Matias, M, Matsuzaki, S, Mcelarney, Y, Messyasz, B, Mitchell, M, Mlambo, M, Motitsoe, S, Nandini, S, Orlandi, V, Owens, C, Özkundakci, D, Pinnow, S, Pociecha, A, Raposeiro, P, Rõõm, E, Rotta, F, Salmaso, N, Sarma, S, Sartirana, D, Scordo, F, Sibomana, C, Siewert, D, Stepanowska, K, Tavşanoğlu, Ü, Tereshina, M, Thompson, J, Tolotti, M, Valois, A, Verburg, P, Welsh, B, Wesolek, B, Weyhenmeyer, G, Wu, N, Zawisza, E, Zink, L, and Leoni, B
- Subjects
plastic pollution ,Lakes ,Settore BIO/07 - ECOLOGIA ,Plastic ,microplastic ,lentic systems - Abstract
Plastic debris is thought to be widespread in freshwater ecosystems globally1. However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3. Here we present a standardized cross-national survey that assesses the abundance and type of plastic debris (>250 μm) in freshwater ecosystems. We sample surface waters of 38 lakes and reservoirs, distributed across gradients of geographical position and limnological attributes, with the aim to identify factors associated with an increased observation of plastics. We find plastic debris in all studied lakes and reservoirs, suggesting that these ecosystems play a key role in the plastic-pollution cycle. Our results indicate that two types of lakes are particularly vulnerable to plastic contamination: lakes and reservoirs in densely populated and urbanized areas and large lakes and reservoirs with elevated deposition areas, long water-retention times and high levels of anthropogenic influence. Plastic concentrations vary widely among lakes; in the most polluted, concentrations reach or even exceed those reported in the subtropical oceanic gyres, marine areas collecting large amounts of debris4. Our findings highlight the importance of including lakes and reservoirs when addressing plastic pollution, in the context of pollution management and for the continued provision of lake ecosystem services.
- Published
- 2023
25. Global patterns and predictors of microplastic occurrence and abundance in lentic systems
- Author
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Nava, Veronica, Frezzotti, Maria Luce, Aherne, Julian, Alfonso, María B., Geraldes, Ana Maria, Attermeyer, Katrin, Bah, Abdou R., Bao, Roberto, Bartrons, Mireia, Berger, Stella, Biernaczyk, Marcin, Breider, Florian, Brookes, Justin, Cañedo-Argüelles, Miguel, Canle, Moisés, Capelli, Camilla, Carballeira, Rafael, Cereijo, Jose Luís, Christensen, Søren T., Christoffersen, Kirsten Seestern, Clayer, Francois, Eyto, Elvira de, Domis, Lisette N. de Senerpont, Delgado, Martín Jordi, Doubek, Jonathan, Eaton, Ashley, Seyda, Erdogan, Erina, Oxana, Ersoy, Zeynep, Feuchtmayr, Heidrun, Fugère, Vincent F., Galafassi, Silvia, Gonçalves, Vítor, Grossart, Hans-Peter, Hamilton, David, Hanson, Paul C., Harris, Ted, Kankılıç, Gökben Başaran, Kessler, Rebecca, Jacquet, Stéphan, Kangur, Külli, Kiel, Christine, Knoll, Lesley, Kokorīte, Ilga, Lavoie, Isabelle, Leiva-Presa, Àngels, Lepori, Fabio, Lusher, Amy, Macintyre, Sally, Matias, Miguel, Matsuzaki, Shin-Ichiro, McCarthy, Valerie, McElarney, Yvonne, McNally, David, Belay, Berte Mekonen, Messyasz, Beata, Mlambo, Musa, Nandini, Sarma, Nodine, Emily, Özen, Arda, Ozkundakci, Deniz, Vazquez Perez, Ricardo, Pociecha, Agnieszka, Raposeiro, Pedro M., Rõõm, Eva-Ingrid, Salmaso, Nico, Singaraju, S.S. Sarma, Saulnier-Talbot, Émilie, Scordo, Facundo, Sibomana, Claver, Stepanowska, Katarzyna, Tavşanoğlu, Ülkü Nihan, Tolotti, Monica, Udoh, Abel, Urrutia-Cordero, Pablo, Valois, Amanda, Vandergoes, Marcus, Verburg, Piet, Volta, Pietro, Wain, Danielle, Wesolek, Brian, Weyhenmeyer, Gesa, Wightman, Ryan, Wood, Susie, Naicheng, Wu, Zawiska, Izabela, Zawisza, Edyta, Zink, Lauren, Leoni, Barbara, Nava, V, Frezzotti, M, Aherne, J, Alfonso, M, Antão-Geraldes, A, Attermeyer, K, Bah, A, Bao, R, Bartrons, M, Berger, S, Biernaczyk, M, Breider, F, Brookes, J, Cañedo-Argüelles, M, Canle, M, Capelli, C, Carballeira, R, Cereijo, J, Christensen, S, Christoffersen, K, Clayer, F, De Eyto, E, De Senerpont Domis, L, Delgado, M, Doubek, J, Eaton, A, Erdogan, S, Erina, O, Ersoy, Z, Feuchtmayr, H, Fugère, V, Galafassi, S, Gonçalves, V, Grossart, H, Hamilton, D, Hanson, P, Harris, T, Kankılıç, G, Kessler, R, Jacquet, S, Kangur, K, Kiel, C, Knoll, L, Kokorīte, I, Lavoie, I, Leiva-Presa, A, Lepori, F, Lusher, A, Macintyre, S, Matias, M, Matsuzaki, S, Mccarthy, V, Mcelarney, Y, Mcnally, D, Belay, B, Messyasz, B, Mlambo, M, Nandini, S, Nodine, E, Özen, A, Ozkundakci, D, Perez, R, Pociecha, A, Raposeiro, P, Rõõm, E, Salmaso, N, Sarma, S, Saulnier-Talbot, E, Scordo, F, Sibomana, C, Stepanowska, K, Tavşanoğlu, U, Tolotti, M, Udoh, A, Urrutia Cordera, P, Valois, A, Vandergoes, M, Verburg, P, Volta, P, Wain, D, Wesolek, B, Weyhenmeyer, G, Wightman, R, Wood, S, Wu, N, Zawiska, I, Zawisza, E, Zink, L, and Leoni, B
- Subjects
reservoir ,watershed feature ,lake ,micro-Raman spectroscopy ,Plastics ,microplastic - Abstract
The majority of microplastic research has focused on seawater, with fewer than 4% of microplasticsrelated studies occurring on freshwaters. The limited available information suggests that the abundance of microplastics in freshwaters is often as high or even higher than marine environments. However, comprehensive investigations on occurrence and fate of microplastics in freshwaters are scarce and highly fragmented, partly because detection and identification of microplastic particles is rather complex. In addition, up to now, harmonized and standardized protocols for the sampling and analysis of microplastics in freshwaters do not exist, and studies with different research aims and hypotheses often report unstandardized results, making comparison among studies difficult. In the present study, we performed the first global standardized sampling and analysis effort to investigate the occurrence and distribution of microplastics in surface water of lakes and reservoirs with different anthropogenic impacts. Participants aim to collect water samples of freshwater systems with different features (e.g., area, depth, thermal behavior, watershed), following a common protocol. This 18 establishes the collection of samples by horizontal trawling of a plankton net and, after treatment with hydrogen peroxide, the polymer identification through micro-Raman spectroscopy. This GLEON project will allow obtaining comparable data about microplastic contamination in different freshwater systems around the globe. With this global dataset, our goals are to determine whether a relationship exists between the abundance of microplastics and the waterbody/watershed attributes and understand which factors are likely to influence the occurrence of microplastics in surface water of lentic systems. info:eu-repo/semantics/publishedVersion
- Published
- 2020
26. Temperature effects explain continental scale distribution of cyanobacterial toxins
- Author
-
Sigrid Haande, Christos Avagianos, Vítor Gonçalves, Lisette N. de Senerpont Domis, Carlos Rochera, Ana García-Murcia, Kerstin Häggqvist, Reyhan Akçaalan, Jordi Noguero-Ribes, Mariusz Pełechaty, Wojciech Krztoń, Hans-Peter Grossart, Jutta Fastner, Bárbara Úbeda, Wojciech Pęczuła, Nur Filiz, Justyna Kobos, Juan M. Soria, Elif Neyran Soylu, Lars-Anders Hansson, Filip Stević, Luděk Bláha, Hanna Mazur-Marzec, Jolanda M. H. Verspagen, Burçin Önem, Karl-Otto Rothhaupt, Nico Salmaso, Abdulkadir Yağcı, David Parreño Duque, Ksenija Savadova, Nusret Karakaya, Aleksandra Pełechata, Yvon Verstijnen, Carmen Pérez-Martínez, Pauliina Salmi, Gizem Bezirci, Tuğba Ongun Sevindik, Svetislav Krstić, Rahmi Uysal, Laura Seelen, Eloísa Ramos-Rodríguez, Spela Remec-Rekar, Sven Teurlincx, Monserrat Real, Meriç Albay, Donald C. Pierson, Susana Romo, Kristiina Mustonen, Kirsten Christoffersen, Valentini Maliaka, Estela Rodríguez-Pérez, Joanna Rosińska, Nilsun Demir, Mehmet Tahir Alp, Elvira Romans, João Morais, Daniel Szymański, Danielle Machado-Vieira, Damian Chmura, Evanthia Mantzouki, Teresa Vegas-Vilarrúbia, Antonio Picazo, Mikołaj Kokociński, Anastasia Hiskia, Christine Edwards, Yang Yang, Irma Vitonytė, Mehmet Cesur, Agnieszka Bańkowska-Sobczak, Iwona Kostrzewska-Szlakowska, Nikoletta Tsiarta, Anđelka Plenković-Moraj, Miquel Lürling, Ryszard Gołdyn, Kristel Panksep, Kemal Celik, Anna Kozak, Jose Luis Cereijo, Pablo Urrutia-Cordero, Petra M. Visser, Rodan Geriš, Uğur Işkın, Leonardo Cerasino, Kadir Çapkın, Victor C. Perello, Carmen Cillero-Castro, Arda Özen, Manel Leira, Enrique Moreno-Ostos, Şakir Çinar, Agnieszka Budzyńska, Faruk Maraşlıoğlu, Pedro M. Raposeiro, Theodoros M. Triantis, Agnieszka Pasztaleniec, Sevasti-Kiriaki Zervou, Elżbieta Wilk-Woźniak, Edward Walusiak, Kersti Kangro, Jorge Juan Montes-Pérez, Triantafyllos Kaloudis, Mari Carmen Trapote, Pablo Alcaraz-Párraga, José María Blanco, Marek Kruk, Hans W. Paerl, Lidia Nawrocka, Meryem Beklioglu, Antonio Camacho, Moritz Buck, Biel Obrador, Ilona Gagala, Lauri Arvola, Elżbieta Szeląg-Wasielewska, Petar Žutinić, Giovanna Flaim, Núria Catalán, R. Carballeira, Alinne Gurjão de Oliveira, Magdalena Frąk, Alo Laas, Magdalena Grabowska, Dubravka Špoljarić Maronić, Meral Apaydın Yağcı, Itana Bokan Vucelić, Ana Maria Antão-Geraldes, Tõnu Feldmann, Natalia Jakubowska-Krepska, Trine Perlt Warming, Armand Hernández, Anna C. Santamans, Fuat Bilgin, Cayelan C. Carey, Joana Mankiewicz-Boczek, Elísabeth Fernández-Morán, Mete Yilmaz, Iwona Jasser, Boris Aleksovski, Michał Wasilewicz, Agnieszka Ochocka, David García, Lea Tuvikene, Roberto L. Palomino, B.W. Ibelings, Hatice Tunca, Birger Skjelbred, Joan Gomà, Jūratė Karosienė, Maria G. Antoniou, Vitor Vasconcelos, Mehmet Ali Turan Koçer, Eti E. Levi, Markéta Fránková, Beata Madrecka, Barbara Pawlik-Skowrońska, Jeremy Fonvielle, Korhan Özkan, Maciej Karpowicz, Özden Fakioglu, Lucia Chomova, Magdalena Toporowska, Ülkü Nihan Tavşanoğlu, Jūratė Kasperovičienė, Latife Köker, Kinga Kwasizur, Koray Ozhan, Valeriano Rodríguez, William Colom-Montero, Ulrike Obertegger, Micaela Vale, Spyros Gkelis, Michał Niedźwiecki, Tunay Karan, Piotr Domek, Judita Koreivienė, Andrea G. Bravo, Justyna Sieńska, Jessica Richardson, Hana Nemova, Cafer Bulut, Jordi Delgado-Martín, Tanja Žuna Pfeiffer, Marija Gligora Udovič, Manthos Panou, Dietmar Straile, Rafael Marcé, Valerie McCarthy, Iveta Drastichova, Agnieszka Napiórkowska-Krzebietke, J. A. Gálvez, Tina Elersek, Beata Messyasz, Adriano Boscaini, Carmen Ferriol, Julita Dunalska, Freshwater and Marine Ecology (IBED, FNWI), BAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü, Karakaya, Nusret, Universitat de Barcelona, Fakülteler, Fen - Edebiyat Fakültesi, Biyoloji Bölümü, Soylu, Elif Neyran, European Cooperation in Science and Technology, Université de Genève, Tokat Gaziosmanpaşa Üniversitesi, Lammi Biological Station, Doctoral Programme in Atmospheric Sciences, CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Yılmaz, Mete, Institute of Agricultural and Environmental Sciences, Mantzouki, Evanthia, Ibelings, Bastiaan Willem, Mantzouki, E, Lurling, M, Fastner, J, Domis, LD, Wilk-Wozniak, E, Koreiviene, J, Seelen, L, Teurlincx, S, Verstijnen, Y, Krzton, W, Walusiak, E, Karosiene, J, Kasperoviciene, J, Savadova, K, Vitonyte, I, Cillero-Castro, C, Budzynska, A, Goldyn, R, Kozak, A, Rosinska, J, Szelag-Wasielewska, E, Domek, P, Jakubowska-Krepska, N, Kwasizur, K, Messyasz, B, Pelechata, A, Pelechaty, M, Kokocinski, M, Garcia-Murcia, A, Real, M, Romans, E, Noguero-Ribes, J, Duque, DP, Fernandez-Moran, E, Karakaya, N, Haggqvist, K, Demir, N, Beklioglu, M, Filiz, N, Levi, EE, Iskin, U, Bezirci, G, Tavsanoglu, UN, Ozhan, K, Gkelis, S, Panou, M, Fakioglu, O, Avagianos, C, Kaloudis, T, Celik, K, Yilmaz, M, Marce, R, Catalan, N, Bravo, AG, Buck, M, Colom-Montero, W, Mustonen, K, Pierson, D, Yang, Y, Raposeiro, PM, Goncalves, V, Antoniou, MG, Tsiarta, N, McCarthy, V, Perello, VC, Feldmann, T, Laas, A, Panksep, K, Tuvikene, L, Gagala, I, Mankiewicz-Boczek, J, Yagci, MA, Cinar, S, Capkin, K, Yagci, A, Cesur, M, Bilgin, F, Bulut, C, Uysal, R, Obertegger, U, Boscaini, A, Flaim, G, Salmaso, N, Cerasino, L, Richardson, J, Visser, PM, Verspagen, JMH, Karan, T, Soylu, EN, Maraslioglu, F, Napiorkowska-Krzebietke, A, Ochocka, A, Pasztaleniec, A, Antao-Geraldes, AM, Vasconcelos, V, Morais, J, Vale, M, Koker, L, Akcaalan, R, Albay, M, Maronic, DS, Stevic, F, Pfeiffer, TZ, Fonvielle, J, Straile, D, Rothhaupt, KO, Hansson, LA, Urrutia-Cordero, P, Blaha, L, Geris, R, Frankova, M, Kocer, MAT, Alp, MT, Remec-Rekar, S, Elersek, T, Triantis, T, Zervou, SK, Hiskia, A, Haande, S, Skjelbred, B, Madrecka, B, Nemova, H, Drastichova, I, Chomova, L, Edwards, C, Sevindik, TO, Tunca, H, Onem, B, Aleksovski, B, Krstic, S, Vucelic, IB, Nawrocka, L, Salmi, P, Machado-Vieira, D, de Oliveira, AG, Delgado-Martin, J, Garcia, D, Cereijo, JL, Goma, J, Trapote, MC, Vegas-Vilarrubia, T, Obrador, B, Grabowska, M, Karpowicz, M, Chmura, D, Ubeda, B, Galvez, JA, Ozen, A, Christoffersen, KS, Warming, TP, Kobos, J, Mazur-Marzec, H, Perez-Martinez, C, Ramos-Rodriguez, E, Arvola, L, Alcaraz-Parraga, P, Toporowska, M, Pawlik-Skowronska, B, Niedzwiecki, M, Peczula, W, Leira, M, Hernandez, A, Moreno-Ostos, E, Blanco, JM, Rodriguez, V, Montes-Perez, JJ, Palomino, RL, Rodriguez-Perez, E, Carballeira, R, Camacho, A, Picazo, A, Rochera, C, Santamans, AC, Ferriol, C, Romo, S, Soria, JM, Dunalska, J, Sienska, J, Szymanski, D, Kruk, M, Kostrzewska-Szlakowska, I, Jasser, I, Zutinic, P, Udovic, MG, Plenkovic-Moraj, A, Frak, M, Bankowska-Sobczak, A, Wasilewicz, M, Ozkan, K, Maliaka, V, Kangro, K, Grossart, HP, Paerl, HW, Carey, CC, Ibelings, BW, Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü, Ongun Sevindik, Tuğba, Tunca, Hatice, Hitit Üniversitesi, Fen Edebiyat Fakültesi, Biyoloji Bölümü, and Fen Edebiyat Fakültesi
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light climate ,0106 biological sciences ,thermocline ,Bacterial toxins ,toksiinit ,limit of quantitation ,Toxines bacterianes ,Microcystin-LR ,Toxicology ,01 natural sciences ,Anatoxin-a ,analogs and derivatives ,BLOOMS ,Direct Effects ,uracil ,Water Pollutants ,chemistry.chemical_classification ,Temperatures ,FRESH-WATER ,latitude ,maximum buoyancy frequency ,6. Clean water ,climate change ,Indirect effects ,EUTROPHICATION ,microcystin RR ,articles ,GROWTH ,lämpötila ,LAKES ,microcystin ,anatoxin ,cylindrospermopsin ,temperature ,direct effects ,indirect effects ,spatial distribution ,European Multi Lake Survey ,epilimnetic temperature ,ta1172 ,cyanobacteria, lakes, climate warming, microcystin ,Zoology ,Article ,water pollutant ,MICROCYSTIS-AERUGINOSA ,Alkaloids ,Settore BIO/07 - ECOLOGIA ,NATURAL SCIENCES. Biology ,Spatial distribution ,Microcystis aeruginosa ,Uracil ,lake ,syanobakteerit ,Indirect Effects ,liquid chromatography-mass spectrometry ,1172 Environmental sciences ,Ekologi ,nutrient ,010604 marine biology & hydrobiology ,lcsh:R ,microbiology ,Climatic changes ,microcystin LR ,Anatoxin ,Lakes ,Spatial Distribution ,chemistry ,nodularin ,microbial diversity ,phytoplankton ,ta1181 ,Cylindrospermopsin ,Tropanes ,Cyanobacteria ,Aquatic Ecology and Water Quality Management ,analysis ,Health, Toxicology and Mutagenesis ,lcsh:Medicine ,environmental parameters ,010501 environmental sciences ,medicine.disease_cause ,nitrogen ,chemistry.chemical_compound ,sea surface temperature ,environmental factor ,ddc:550 ,Canvi climàtic ,phosphorus ,PRIRODNE ZNANOSTI. Biologija ,limit of detection ,Ecology ,Cyanobacteria Toxins ,biology ,Temperature ,levinneisyys ,Nodularin ,tropane derivative ,Europe ,DAPHNIA-MAGNA ,İndirect Effects ,Direct effects ,microbial community ,Environmental Monitoring ,high performance liquid chromatography ,Microcystins ,Climate Change ,Bacterial Toxins ,Microcystin ,välittömät oikeusvaikutukset ,cyanobacterium ,ddc:570 ,geographic distribution ,medicine ,bacterial toxin ,controlled study ,ddc:610 ,Institut für Biochemie und Biologie ,0105 earth and related environmental sciences ,nonhuman ,WIMEK ,Toxin ,longitude ,PHYTOPLANKTON ASSEMBLAGES ,Aquatic Ecology ,NITROGEN AVAILABILITY ,anatoxin a ,Aquatische Ecologie en Waterkwaliteitsbeheer ,biology.organism_classification ,Climatic change ,CLIMATE ,13. Climate action ,response variable ,Canvis climàtics - Abstract
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota. Generalized linear models showed that a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability. Increases in TDI were explained through a significant increase in toxin variants such as MC-YR, anatoxin and cylindrospermopsin, accompanied by a decreasing presence of MC-LR. While global warming continues, the direct and indirect effects of increased lake temperatures will drive changes in the distribution of cyanobacterial toxins in Europe, potentially promoting selection of a few highly toxic species or strains. © 2018 by the authors. Licensee MDPI, Basel, Switzerland., The authors acknowledge COST Action ES 1105 “CYANOCOST—Cyanobacterial blooms and toxins in water resources: Occurrence impacts and management” and COST Action ES 1201 “NETLAKE—Networking Lake Observatories in Europe” for contributing to this study through networking and knowledge sharing with European experts in the field. Evanthia Mantzouki was supported by a grant from the Swiss State Secretariat for Education, Research and Innovation (SERI) to Bas Ibelings and by supplementary funding from the University of Geneva. We thank Clare Ahnlund, Ena Suarez and Irene Gallego for helping out with the Swiss survey. We thank Wendy Beekman and Els J. Faassen for the nutrient and toxin analysis.
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- 2018
27. Data Descriptor: A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins
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Tunca, Hatice, Mantzouki, E, Campbell, J, van Loon, E, Visser, P, Konstantinou, I, Antoniou, M, Giuliani, G, Machado-Vieira, D, de Oliveira, AG, Maronic, DS, Stevic, F, Pfeiffer, TZ, Vucelic, IB, Zutinic, P, Udovic, MG, Plenkovic-Moraj, A, Tsiarta, N, Blaha, L, Geris, R, Frankova, M, Christoffersen, KS, Warming, TP, Feldmann, T, Laas, A, Panksep, K, Tuvikene, L, Kangro, K, Haggqvist, K, Salmi, P, Arvola, L, Fastner, J, Straile, D, Rothhaupt, KO, Fonvielle, J, Grossart, HP, Avagianos, C, Kaloudis, T, Triantis, T, Zervou, SK, Hiskia, A, Gkelis, S, Panou, M, McCarthy, V, Perello, VC, Obertegger, U, Boscaini, A, Flaim, G, Salmaso, N, Cerasino, L, Koreiviene, J, Karosiene, J, Kasperoviciene, J, Savadova, K, Vitonyte, I, Haande, S, Skjelbred, B, Grabowska, M, Karpowicz, M, Chmura, D, Nawrocka, L, Kobos, J, Mazur-Marzec, H, Alcaraz-Parraga, P, Wilk-Wozniak, E, Krzton, W, Walusiak, E, Gagala, I, Mankiewicz-Boczek, J, Toporowska, M, Pawlik-Skowronska, B, Niedzwiecki, M, Peczula, W, Napiorkowska-Krzebietke, A, Dunalska, J, Sienska, J, Szymanski, D, Kruk, M, Budzynska, A, Goldyn, R, Kozak, A, Rosinska, J, Szelag-Wasielewska, E, Domek, P, Jakubowska-Krepska, N, Kwasizur, K, Messyasz, B, Pelechata, A, Pelechaty, M, Kokocinski, M, Madrecka, B, Kostrzewska-Szlakowska, I, Frak, M, Bankowska-Sobczak, A, Wasilewicz, M, Ochocka, A, Pasztaleniec, A, Jasser, I, Antao-Geraldes, AM, Leira, M, Hernandez, A, Vasconcelos, V, Morais, J, Vale, M, Raposeiro, PM, Goncalves, V, Aleksovski, B, Krstic, S, Nemova, H, Drastichova, I, Chomova, L, Remec-Rekar, S, Elersek, T, Delgado-Martin, J, Garcia, D, Cereijo, JL, Goma, J, Trapote, MC, Vegas-Vilarrubia, T, Obrador, B, Garcia-Murcia, A, Real, M, Romans, E, Noguero-Ribes, J, Duque, DP, Fernandez-Moran, E, Ubeda, B, Galvez, JA, Marce, R, Catalan, N, Perez-Martinez, C, Ramos-Rodriguez, E, Cillero-Castro, C, Moreno-Ostos, E, Blanco, JM, Rodriguez, V, Montes-Perez, JJ, Palomino, RL, Rodriguez-Perez, E, Carballeira, R, Camacho, A, Picazo, A, Rochera, C, Santamans, AC, Ferriol, C, Romo, S, Soria, JM, Hansson, LA, Urrutia-Cordero, P, Ozen, A, Bravo, AG, Buck, M, Colom-Montero, W, Mustonen, K, Pierson, D, Yang, Y, Verspagen, JMH, Domis, LND, Seelen, L, Teurlincx, S, Verstijnen, Y, Lurling, M, Maliaka, V, Faassen, EJ, Latour, D, Carey, CC, Paerl, HW, Torokne, A, Karan, T, Demir, N, Beklioglu, M, Filiz, N, Levi, EE, Iskin, U, Bezirci, G, Tavsanoglu, UN, Celik, K, Ozhan, K, Karakaya, N, Kocer, MAT, Yilmaz, M, Maraslioglu, F, Fakioglu, O, Soylu, EN, Yagci, MA, Cinar, S, Capkin, K, Yagci, A, Cesur, M, Bilgin, F, Bulut, C, Uysal, R, Koker, L, Akcaalan, R, Albay, M, Alp, MT, Ozkan, K, Sevindik, TO, Tunca, H, Onem, B, Richardson, J, Edwards, C, Bergkemper, V, O'Leary, S, Beirne, E, Cromie, H, Ibelings, BW, Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü, and Tunca, Hatice
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Science & Technology - Other Topics - Abstract
Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.
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- 2018
28. Naturally and Anthropogenically Induced Lingulodinium polyedra Dinoflagellate Red Tides in the Galician Rias (NW Iberian Peninsula).
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Prego R, Bao R, Varela M, and Carballeira R
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- Spain, Seasons, Environmental Monitoring, Seawater, Geologic Sediments, Salinity, Dinoflagellida growth & development, Harmful Algal Bloom, Temperature
- Abstract
Despite the fact that the first red tide reported on the coasts of the Iberian Peninsula was due to Lingulodinium polyedra , knowledge about their frequency and, particularly, about the environmental conditions contributing to bloom initiation is still scarce. For this reason, L. polyedra bloom episodes were observed and studied in three Galician rias during the summer season based on the 1993-2008 record database period; additionally, samples were collected in summer 2008. Proliferations of L. polyedra occurred in the rias of Ares and Barqueiro in June and August, respectively, while in the Ria of Coruña, they persisted from the end of June to early September. Red tides developed when the surface temperature reached 17 °C, with "seasonal thermal window" conditions, and when salinities were ≥30, i.e., an "optimal salinity window"; when these parameters were lower than these thresholds, cyst germination decreased. A cyst transport mechanism from sediments to the surface must also exist; this mechanism was found to be natural (tidal currents) in the ria of Barqueiro or anthropogenic (dredging) in the rias of Ares and Coruña. Surface temperatures during summer were usually favorable for cyst germination (85 to 100%) during the 1993-2008 period; however, water temperatures below 10 m depth only rarely reached the 17 °C threshold (2 to 18%). During this 16-year period, dredging activities could explain 71% (Coruña) and 44% (Ares) of the recorded bloom events. When a bloom episode developed in early summer, favorable conditions did not lead to a new red tide, probably due to the lag period required by cysts for germination. Moreover, blooms did not develop when high densities of diatoms (>1,000,000 cells·L
-1 ) remained in the water column as a result of summer upwelling pulses occurring in specific years. The temperature-sediment disturbance pattern found in this study provides a useful tool for the prevention of eventual risks resulting from red tides of this dinoflagellate., Competing Interests: The authors declare no conflicts of interest.- Published
- 2024
- Full Text
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29. Oceanographical Context of the First Bloom of the Silicoflagellate Octactis speculum (Ehrenberg) Recorded to Cause Salmon Mortality in a Galician Ria: Was This Bloom a Rare Event in the Iberian Coast?
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Prego R, Carballeira R, Pazos Y, and Bao R
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- Animals, Harmful Algal Bloom, Wind, Bays, Water, Salmo salar, Dinoflagellida
- Abstract
Harmful algal blooms are one of the leading causes of mortality in salmon aquaculture, with significant economic consequences. From 15 to 31 October 1996, a bloom of the skeletonized form of Octactis speculum (Ehrenberg) F.H. Chang, J.M. Grieve & J.E. Sutherland was detected in the small Merexo inlet (1.7 km
2 area), located on the southern shore of the Ria of Muxía (Galicia, NW Spain). The O. speculum population inside the inlet (data period: 1992-1996) seldom exceeded 4·103 cell·L-1 . However, its concentration reached 2·105 cell·L-1 during the bloom, coinciding with a decrease in light penetration from 5 to 2 m deep, as measured using a Secchi disk. Although similar concentrations were reported during late October 1992, this was the first time that a bloom was associated with caged salmon ( Salmo salar , Linnaeus 1758) mortality in the Galician coastal waters. This mortality was not associated with anoxia in the water column, but with fish gill irritations and mucus segregation due to gill clogging. Excess nitrate and silicate, the latter being essential for skeleton formation, were measured in the inlet during the bloom, with phosphate acting as the limiting nutrient (high negative correlation). Blooms of O. speculum occurred in autumn-winter, when water was retained within the inlet under meteorological conditions of southwest winds (which prompted downwelling conditions) and clear skies. A review of the oceanographic database of the Galician rias showed that massive O. speculum proliferations are also commonplace in other rias with similar environmental conditions, such as the Ria of Ares-Betanzos, and can therefore constitute a threat for the development of salmon aquaculture on this coast.- Published
- 2023
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30. Plastic debris in lakes and reservoirs.
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Nava V, Chandra S, Aherne J, Alfonso MB, Antão-Geraldes AM, Attermeyer K, Bao R, Bartrons M, Berger SA, Biernaczyk M, Bissen R, Brookes JD, Brown D, Cañedo-Argüelles M, Canle M, Capelli C, Carballeira R, Cereijo JL, Chawchai S, Christensen ST, Christoffersen KS, de Eyto E, Delgado J, Dornan TN, Doubek JP, Dusaucy J, Erina O, Ersoy Z, Feuchtmayr H, Frezzotti ML, Galafassi S, Gateuille D, Gonçalves V, Grossart HP, Hamilton DP, Harris TD, Kangur K, Kankılıç GB, Kessler R, Kiel C, Krynak EM, Leiva-Presa À, Lepori F, Matias MG, Matsuzaki SS, McElarney Y, Messyasz B, Mitchell M, Mlambo MC, Motitsoe SN, Nandini S, Orlandi V, Owens C, Özkundakci D, Pinnow S, Pociecha A, Raposeiro PM, Rõõm EI, Rotta F, Salmaso N, Sarma SSS, Sartirana D, Scordo F, Sibomana C, Siewert D, Stepanowska K, Tavşanoğlu ÜN, Tereshina M, Thompson J, Tolotti M, Valois A, Verburg P, Welsh B, Wesolek B, Weyhenmeyer GA, Wu N, Zawisza E, Zink L, and Leoni B
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- Ecosystem, Surveys and Questionnaires, Urbanization, Human Activities, Lakes chemistry, Plastics analysis, Plastics classification, Water Pollution analysis, Water Pollution statistics & numerical data, Water Supply
- Abstract
Plastic debris is thought to be widespread in freshwater ecosystems globally
1 . However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3 . Here we present a standardized cross-national survey that assesses the abundance and type of plastic debris (>250 μm) in freshwater ecosystems. We sample surface waters of 38 lakes and reservoirs, distributed across gradients of geographical position and limnological attributes, with the aim to identify factors associated with an increased observation of plastics. We find plastic debris in all studied lakes and reservoirs, suggesting that these ecosystems play a key role in the plastic-pollution cycle. Our results indicate that two types of lakes are particularly vulnerable to plastic contamination: lakes and reservoirs in densely populated and urbanized areas and large lakes and reservoirs with elevated deposition areas, long water-retention times and high levels of anthropogenic influence. Plastic concentrations vary widely among lakes; in the most polluted, concentrations reach or even exceed those reported in the subtropical oceanic gyres, marine areas collecting large amounts of debris4 . Our findings highlight the importance of including lakes and reservoirs when addressing plastic pollution, in the context of pollution management and for the continued provision of lake ecosystem services., (© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2023
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31. [Immunonutrition, evidence and experiences].
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Tejera Pérez C, Guillín Amarelle C, Rodríguez Novo N, Lugo Rodríguez G, Mantiñán Gil B, Palmeiro Carballeira R, Pita Gutiérrez F, Argüeso Armesto R, Cantón Blanco A, Botana López MA, Fernández López MT, Muñoz Leira V, Rodeiro Marta S, and Martínez Olmos MÁ
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- Humans, Arginine, Immunonutrition Diet, Postoperative Complications prevention & control, Prospective Studies, COVID-19, Esophageal Neoplasms, Fatty Acids, Omega-3 therapeutic use, Stomach Neoplasms
- Abstract
Introduction: Immunonutrition is a science that encompasses aspects related to nutrition, immunity, infection, inflammation and tissue damage. Immunomodulatory formulas have shown benefits in a wide variety of clinical situations. The objective of this work was to review the available evidence in immunonutrition (IN). For this, a bibliographic search has been carried out with the keywords: immunonutrition, arginine, glutamine, nucleotides, omega-3 fatty acids, ERAS, fast-track. Clinical trials, reviews and clinical practice guidelines have been included. IN has been shown to reduce postoperative fistulae in head and neck cancer patients and in gastric and esophageal cancer patients, infectious complications and hospital stay. Other clinical situations that benefit from the use of IN are pancreatic cancer surgery, colorectal cancer surgery and major burns. More controlled, prospective, and randomized studies are necessary to confirm the potential benefits of IN in other clinical situations such as non-esophageal thoracic surgery, bladder cancer, gynecological surgery, hip fracture, liver pathology and COVID-19, among others.
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- 2023
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32. GALIPDIA study: Reaching lipid targets in a population with type 2 diabetes (T2DM) from the Northwest of Spain.
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Villar-Taibo R, Fernández-Rodríguez E, Tejera-Pérez C, Díaz-Ortega C, Sánchez-Sobrino P, Palmeiro-Carballeira R, Rodríguez-Novo N, Rodríguez-Carnero G, Pinal-Osorio I, Cotovad-Bellas L, Díaz-Trastoy O, Mantiñán-Gil B, Álvarez-Castro P, Andújar Plata P, Seoane-Cruz I, Prieto-Tenreiro A, Argüeso Armesto R, Fernández-Pombo A, Sánchez-Bao A, and Vidal-Casariego A
- Subjects
- Adult, Humans, Spain, Cross-Sectional Studies, Retrospective Studies, Cholesterol, LDL, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 complications, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Dyslipidemias complications
- Abstract
Aim: To assess the degree of compliance with the European ESC/EAS 2016 and 2019 dyslipidaemia guidelines in patients with type 2 diabetes mellitus (T2DM)., Methods: Multicentre retrospective cross-sectional study, conducted in 380 adults with T2DM and dyslipidaemia in 7 Spanish health areas., Inclusion Criteria: minimum follow-up of one year in Endocrinology Units, at least one visit in 2020 and a lipid profile measurement in the last 3 months., Exclusion Criteria: familial hypercholesterolaemia, recent hospitalisation, active oncological pathology and dialysis., Results: According to the 2016 and 2019 guidelines the majority of patients were classified as being at very high cardiovascular risk (86.8% vs. 72.1%, respectively). LDL-c compliance was adequate in 62.1% of patients according to the 2016 guidelines and 39.7% according to the 2019 guidelines (p<0.001). Clinical conditions such as history of cardiovascular disease and therapy-related aspects (use of statins, especially high-potency statins, combination therapies and good adherence) were significantly associated with greater achievement of lipid targets., Conclusion: There is a discrepancy between dyslipidaemia guideline recommendations and the reality of lipid control in patients with T2DM, despite most of these patients being at very high cardiovascular risk. Strategies to optimise lipid-lowering treatments need to be implemented., (Copyright © 2022 SEEN and SED. Published by Elsevier España, S.L.U. All rights reserved.)
- Published
- 2023
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33. Attraction of Insects to Ornamental Lighting Used on Cultural Heritage Buildings: A Case Study in an Urban Area.
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Méndez A, Martín L, Arines J, Carballeira R, and Sanmartín P
- Abstract
Artificial light at night (ALAN) reduces insect populations by altering their movements, foraging, reproduction, and predation. Although ALAN is mainly associated with streetlights and road networks, the ornamental illumination of monuments is making an increasing (but not well-studied) contribution. We compared insect attraction to two different types of light sources: a metal halide lamp (a type currently used to illuminate monuments) and an environmentally sound prototype lamp (CromaLux) comprising a combination of green and amber LEDs. The experiment was performed within the pilot CromaLux project in Santiago de Compostela (NW Spain). The abundance and diversity of the insects captured between June and October 2021 in the areas surrounding both light sources and in an unlit area were compared. By limiting the light emitted to amber and green, the CromaLux lamps reduced the number and diversity of insects, morphospecies, and orders attracted to the light, with similar numbers captured as in the unilluminated area, while a greater diversity of insects was captured beside the metal halide lamp. This effect has been demonstrated for almost all insect orders trapped, especially in Diptera, Lepidoptera, Coleoptera, Hemiptera, and Hymenoptera. On the contrary, Psocoptera showed a similar attraction to the CromaLux and metal halide lamps, a phenomenon whose causes deserve further investigation. As expected, Diptera were the most diverse and abundant insects in all samples, but the abundance of Lepidoptera was unexpectedly low (4%), which is in line with the worldwide evidence of the progressive decline of populations of this group. The study findings provide evidence that selecting specific wavelengths for ornamental lighting reduces the attraction of insects while maintaining adequate illumination of monuments for aesthetic purposes, resulting in a lower environmental impact on nocturnal insects. This study provides reference data for developing principles of good practices leading to possible regulatory and legal solutions and the incorporation of specific measures for artificial lighting of monuments and urban structures.
- Published
- 2022
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34. Stochastic Schrödinger equation derivation of non-Markovian two-time correlation functions.
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Carballeira R, Dolgitzer D, Zhao P, Zeng D, and Chen Y
- Abstract
We derive the evolution equations for two-time correlation functions of a generalized non-Markovian open quantum system based on a modified stochastic Schrödinger equation approach. We find that the two-time reduced propagator, an object that used to be characterized by two independent stochastic processes in the Hilbert space of the system, can be simplified and obtained by taking ensemble average over one single noise. This discovery can save the cost of computation, and accelerate the converging process when taking the average over noisy trajectories. As a result, our method can be widely applied to many open quantum models, especially large-scale systems and extend the quantum regression theory to the non-Markovian case. In the short-time simulations, it is observed a significant difference between Markovian and non-Markovian cases, which can be applied to realize the environmental spectrum detection and enhance the measurement sensitivity in varying open quantum systems.
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- 2021
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35. Unravelling the Extent of Diversity within the Iberian Medicinal Leeches (Hirudinea: Hirudo ) Using Molecules and Morphology.
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Arias A, Surugiu V, Carballeira R, Popa OP, Popa LO, and Utevsky S
- Abstract
Until the beginning of the 21st century, the famous medicinal leech was thought to be represented by only one species, Hirudo medicinalis . However, recent publications have demonstrated that under that name, at least five different species of medicinal leeches were hidden. During the last decade, the biogeography of Western-Palaearctic leeches has begun to unravel, untangling their diversity in practically all of Europe, except for its westernmost peninsula, Iberia. Hirudo medicinalis has been repeatedly reported from Iberia, but those records were considered questionable. We discovered H. verbana in northern Spain, constituting its first record in Iberia. Using an integrative approach (combining morpho-anatomical data and molecular analyses using three genes, COI,12S rRNA, and ITS2), two endemic and geographically separated Iberian lineages have been found. One of them is easily distinguished by its distinctive colour-pattern and is described as H. verbana bilineata ssp. nov. We characterized the new subspecies morphologically, ecologically, and genetically. We also established its phylogenetic relationships with other European Hirudo spp. and confirm the presence of H. troctina in Iberia, occurring as far as 43° lat. N. Iberian H. verbana records constitute its westernmost known distribution to date. The provided distribution pattern of H. verbana contributes to a better understanding of the complexity of Iberia as a glacial refugium/cradle for endemisms, harbouring populations with a high degree of genetic structure that began to settle throughout the Pleistocene. Iberian Hirudo populations are declining in recent decades and there is an urgent need to assess their conservation status and to initiate conservation measures to reverse their decline.
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- 2021
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36. Effectiveness, Safety, and Adherence to Treatment of Proprotein Convertase Subtilisin/Kexin Type 9 Inhibitors in Real Practice.
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Gayoso-Rey M, Díaz-Trastoy O, Romero-Ventosa EY, García-Beloso N, González-Freire L, Lorenzo-Lorenzo K, Mantiñán-Gil B, Palmeiro-Carballeira R, Bravo-Amaro M, López-Gil-Otero MDM, Martínez-Reglero C, Crespo-Diz C, Fernández-Catalina P, and Piñeiro Corrales G
- Subjects
- Antibodies, Monoclonal adverse effects, Cholesterol, LDL, Humans, PCSK9 Inhibitors, Retrospective Studies, Subtilisins, Treatment Outcome, Anticholesteremic Agents adverse effects, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Hypercholesterolemia drug therapy, Proprotein Convertase 9
- Abstract
Purpose: To evaluate the effectiveness, adverse reactions, and adherence to treatment of hypolipidemic inhibitors of proprotein convertase subtilisin/kexin type 9 (PCSK9is) in a context of real clinical practice., Methods: We present an observational, retrospective, descriptive, multicenter study of patients with hypercholesterolemia who began treatment with PCSK9is between January 2017 and December 2019, with a minimum treatment period of 3 months. The main variable we recorded was the frequency of cardiovascular events (cardiovascular death, myocardial infarction, stroke, coronary revascularization, and hospitalization for unstable angina) in patients treated with PCSK9is. We recorded patient demographic characteristics and cardiovascular risk factors at onset of treatment as well as LDL-C levels and their reductions at 3, 6, 12, and 24 months. We calculated adherence to treatment and recorded the adverse reactions during treatment., Findings: A total of 154 patients were studied, 64 (41.6%) of whom were treated with alirocumab and 90 (58.4%) with evolocumab. The initial dose of alirocumab was 75 mg every 14 days in 48 patients (75%) and 150 mg eery 14 days in 16 (25%). All patients who in the evolocumab group received a dose of 140 mg every 14 days. The mean (SD) basal LDL-C level was 159.6 (50.1) mg/dL, the level at 3 months was 87.9 (49.9) mg/dL (mean [SD] decrease, 44.5% [28.2%]), the level at 6 months was 86.7 (49.2) mg/dL (mean [SD] decrease, 46.3% [25.6%]), and the level at 12 months was 80.5 (41.4) (mean [SD] decrease, 48.9% [23.0%]). These values were maintained at 24 months (mean [SD], 80.3 [41.8] mg/dL; mean [SD] decrease, 47.9% [27.8%]). The percentage decrease of LDL-C for both drugs was approximately 50%, which was maintained until 24 months after treatment. Six patients (3.9%) presented with some cardiovascular event: acute myocardial infarction (2 [1.3%]), stroke (1 [0.65%]), coronary revascularization (1 [0.65%]), and hospitalization for unstable angina (2 [1.3%]). We did not see any adverse reactions related to PCSK9i treatment in 76.5% of patients. In the first 6 months, adherence to treatment with PCSK9is, measured as the possession ratio, was a mean (SD) of 99.4% (3.9%). In the rest of the study period (6-24 months), the mean (SD) adherence to treatment was 99.2% (4.7%)., Implications: The frequency of cardiovascular events in patients treated with PCSK9is was low and occurred despite adequate adherence to treatment (100% possession ratio) with PCSK9is and concomitant treatment with other hypolipidemics. The effectiveness of PCSK9is is similar to that referred to in other published studies with PCSK9is, and this was maintained in the long term (24 months) with few adverse events, all of which were mild., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
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37. Fully automatic detection and classification of phytoplankton specimens in digital microscopy images.
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Rivas-Villar D, Rouco J, Carballeira R, Penedo MG, and Novo J
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- Machine Learning, Reproducibility of Results, Water, Microscopy, Phytoplankton
- Abstract
Background and Objective: The proliferation of toxin-producing phytoplankton species can compromise the quality of the water sources. This contamination is difficult to detect, and consequently to be neutralised, since normal water purification techniques are ineffective. Currently, the water analyses about phytoplankton are commonly performed by the specialists with manual routine analyses, which represents a major limitation. The adequate identification and classification of phytoplankton specimens requires intensive training and expertise. Additionally, the performed analysis involves a lengthy process that exhibits serious problems of reliability and repeatability as inter-expert agreement is not always reached. Considering all those factors, the automatization of these analyses is, therefore, highly desirable to reduce the workload of the specialists and facilitate the process., Methods: This manuscript proposes a novel fully automatic methodology to perform phytoplankton analyses in digital microscopy images of water samples taken with a regular light microscope. In particular, we propose a method capable of analysing multi-specimen images acquired using a simplified systematic protocol. In contrast with prior approaches, this enables its use without the necessity of an expert taxonomist operating the microscope. The system is able to detect and segment the different existing phytoplankton specimens, with high variability in terms of visual appearances, and to merge them into colonies and sparse specimens when necessary. Moreover, the system is capable of differentiating them from other similar objects like zooplankton, detritus or mineral particles, among others, and then classify the specimens into defined target species of interest using a machine learning-based approach., Results: The proposed system provided satisfactory and accurate results in every step. The detection step provided a FNR of 0.4%. Phytoplankton detection, that is, differentiating true phytoplankton from similar objects (zooplankton, minerals, etc.), provided a result of 84.07% of precision at 90% of recall. The target species classification, reported an overall accuracy of 87.50%. The recall levels for each species are, 81.82% for W. naegeliana, 57.15% for A. spiroides, 85.71% for D. sociale and 95% for the "Other" group, a set of relevant toxic and interesting species widely spread over the samples., Conclusions: The proposed methodology provided accurate results in all the designed steps given the complexity of the problem, particularly in terms of specimen identification, phytoplankton differentiation as well as the classification of the defined target species. Therefore, this fully automatic system represents a robust and consistent tool to aid the specialists in the analysis of the quality of the water sources and potability., Competing Interests: Declaration of Competing Interests The authors declare no conflicts of interest., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2021
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38. Impact of colour on the bioreceptivity of granite to the green alga Apatococcus lobatus: Laboratory and field testing.
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Sanmartín P, Grove R, Carballeira R, and Viles H
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- Color, Porosity, Silicon Dioxide, Chlorophyta
- Abstract
Recent work has demonstrated that surface colour affects the formation of cyanobacterial subaerial biofilms on polycarbonate coupons and, in turn, influences their bioreceptivity. To explore whether colour is important on other substrates, the influence of colour on the primary bioreceptivity of granite to the terrestrial green alga Apatococcus lobatus (Trebouxiophyceae, Chlorophyta) has been assessed. Two granitoids (Grissal and Rosa Porriño) with the same texture, and very similar chemical composition, open porosity and surface roughness, but different coloration related to feldspars (i.e. greyish and reddish) were used to conduct bioreceptivity studies in parallel field and laboratory tests. Light microscopy, colour spectrophotometry, PAM fluorometry, and optical profilometry were used to evaluate colonisation and its impacts. Short-term results (after 7 and 10 weeks of colonisation by a mono-species biofilm) from both lab and field trials, showed significantly more algae growth on reddish granite (Rosa Porriño) than on greyish granite (Grissal). Also, optical profilometry and light microscopy demonstrated that on both granites algal aggregates developed in hollows. We attribute the roughly double levels of A. lobatus growth on reddish vs greyish granite to differences in the amount of radiant energy absorbed and the higher levels of red wavelength light (known to encourage algal growth) reflected from the reddish surface., Competing Interests: Declaration of competing interest The authors declare that they have no conflicts of interest., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
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39. Automatic Detection of Freshwater Phytoplankton Specimens in Conventional Microscopy Images.
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Rivas-Villar D, Rouco J, Penedo MG, Carballeira R, and Novo J
- Subjects
- Algorithms, Fresh Water, Machine Learning, Environmental Monitoring methods, Image Processing, Computer-Assisted, Microscopy, Phytoplankton
- Abstract
Water safety and quality can be compromised by the proliferation of toxin-producing phytoplankton species, requiring continuous monitoring of water sources. This analysis involves the identification and counting of these species which requires broad experience and knowledge. The automatization of these tasks is highly desirable as it would release the experts from tedious work, eliminate subjective factors, and improve repeatability. Thus, in this preliminary work, we propose to advance towards an automatic methodology for phytoplankton analysis in digital images of water samples acquired using regular microscopes. In particular, we propose a novel and fully automatic method to detect and segment the existent phytoplankton specimens in these images using classical computer vision algorithms. The proposed method is able to correctly detect sparse colonies as single phytoplankton candidates, thanks to a novel fusion algorithm, and is able to differentiate phytoplankton specimens from other image objects in the microscope samples (like minerals, bubbles or detritus) using a machine learning based approach that exploits texture and colour features. Our preliminary experiments demonstrate that the proposed method provides satisfactory and accurate results.
- Published
- 2020
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40. First record of a freshwater bryozoan species in Cuba: Plumatella repens (Linnaeus, 1758) (Phylactolaemata, Bryozoa).
- Author
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Carballeira R, Romay CD, and Ramos A
- Abstract
The discovery of Plumatella repens floatoblasts in wetlands of the La Niña Bonita Reservoir and the Ciénaga de Zapata Swamp, Cuba, constitutes the first record of a freshwater bryozoan species on the island and extends the distribution range of the species in the insular Caribbean. Unlike the inland waters of the Lesser Antilles the greater availability of water and lower salinity are likely the main factors that determine the distribution of P. repens in the Greater Antilles., (Rafael Carballeira, Cosme D. Romay, Atocha Ramos.)
- Published
- 2020
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41. A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins.
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Mantzouki E, Campbell J, van Loon E, Visser P, Konstantinou I, Antoniou M, Giuliani G, Machado-Vieira D, Gurjão de Oliveira A, Maronić DŠ, Stević F, Pfeiffer TŽ, Vucelić IB, Žutinić P, Udovič MG, Plenković-Moraj A, Tsiarta N, Bláha L, Geriš R, Fránková M, Christoffersen KS, Warming TP, Feldmann T, Laas A, Panksep K, Tuvikene L, Kangro K, Häggqvist K, Salmi P, Arvola L, Fastner J, Straile D, Rothhaupt KO, Fonvielle J, Grossart HP, Avagianos C, Kaloudis T, Triantis T, Zervou SK, Hiskia A, Gkelis S, Panou M, McCarthy V, Perello VC, Obertegger U, Boscaini A, Flaim G, Salmaso N, Cerasino L, Koreivienė J, Karosienė J, Kasperovičienė J, Savadova K, Vitonytė I, Haande S, Skjelbred B, Grabowska M, Karpowicz M, Chmura D, Nawrocka L, Kobos J, Mazur-Marzec H, Alcaraz-Párraga P, Wilk-Woźniak E, Krztoń W, Walusiak E, Gagala I, Mankiewicz-Boczek J, Toporowska M, Pawlik-Skowronska B, Niedźwiecki M, Pęczuła W, Napiórkowska-Krzebietke A, Dunalska J, Sieńska J, Szymański D, Kruk M, Budzyńska A, Goldyn R, Kozak A, Rosińska J, Szeląg-Wasielewska E, Domek P, Jakubowska-Krepska N, Kwasizur K, Messyasz B, Pełechata A, Pełechaty M, Kokocinski M, Madrecka B, Kostrzewska-Szlakowska I, Frąk M, Bańkowska-Sobczak A, Wasilewicz M, Ochocka A, Pasztaleniec A, Jasser I, Antão-Geraldes AM, Leira M, Hernández A, Vasconcelos V, Morais J, Vale M, Raposeiro PM, Gonçalves V, Aleksovski B, Krstić S, Nemova H, Drastichova I, Chomova L, Remec-Rekar S, Elersek T, Delgado-Martín J, García D, Cereijo JL, Gomà J, Trapote MC, Vegas-Vilarrúbia T, Obrador B, García-Murcia A, Real M, Romans E, Noguero-Ribes J, Duque DP, Fernández-Morán E, Úbeda B, Gálvez JÁ, Marcé R, Catalán N, Pérez-Martínez C, Ramos-Rodríguez E, Cillero-Castro C, Moreno-Ostos E, Blanco JM, Rodríguez V, Montes-Pérez JJ, Palomino RL, Rodríguez-Pérez E, Carballeira R, Camacho A, Picazo A, Rochera C, Santamans AC, Ferriol C, Romo S, Soria JM, Hansson LA, Urrutia-Cordero P, Özen A, Bravo AG, Buck M, Colom-Montero W, Mustonen K, Pierson D, Yang Y, M H Verspagen J, de Senerpont Domis LN, Seelen L, Teurlincx S, Verstijnen Y, Lürling M, Maliaka V, Faassen EJ, Latour D, Carey CC, W Paerl H, Torokne A, Karan T, Demir N, Beklioğlu M, Filiz N, E Levi E, Iskin U, Bezirci G, Tavşanoğlu ÜN, Çelik K, Özhan K, Karakaya N, Koçer MAT, Yilmaz M, Maraşlıoğlu F, Fakioglu Ö, Soylu EN, Yağcı MA, Çınar Ş, Çapkın K, Yağcı A, Cesur M, Bilgin F, Bulut C, Uysal R, Köker L, Akçaalan R, Albay M, Alp MT, Özkan K, Sevindik TO, Tunca H, Önem B, Richardson J, Edwards C, Bergkemper V, O'Leary S, Beirne E, Cromie H, and Ibelings BW
- Subjects
- Climate Change, Europe, Phytoplankton chemistry, Pigments, Biological, Cyanobacteria chemistry, Environmental Monitoring, Lakes
- Abstract
Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.
- Published
- 2018
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42. Temperature Effects Explain Continental Scale Distribution of Cyanobacterial Toxins.
- Author
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Mantzouki E, Lürling M, Fastner J, de Senerpont Domis L, Wilk-Woźniak E, Koreivienė J, Seelen L, Teurlincx S, Verstijnen Y, Krztoń W, Walusiak E, Karosienė J, Kasperovičienė J, Savadova K, Vitonytė I, Cillero-Castro C, Budzyńska A, Goldyn R, Kozak A, Rosińska J, Szeląg-Wasielewska E, Domek P, Jakubowska-Krepska N, Kwasizur K, Messyasz B, Pełechaty A, Pełechaty M, Kokocinski M, García-Murcia A, Real M, Romans E, Noguero-Ribes J, Duque DP, Fernández-Morán E, Karakaya N, Häggqvist K, Demir N, Beklioğlu M, Filiz N, Levi EE, Iskin U, Bezirci G, Tavşanoğlu ÜN, Özhan K, Gkelis S, Panou M, Fakioglu Ö, Avagianos C, Kaloudis T, Çelik K, Yilmaz M, Marcé R, Catalán N, Bravo AG, Buck M, Colom-Montero W, Mustonen K, Pierson D, Yang Y, Raposeiro PM, Gonçalves V, Antoniou MG, Tsiarta N, McCarthy V, Perello VC, Feldmann T, Laas A, Panksep K, Tuvikene L, Gagala I, Mankiewicz-Boczek J, Yağcı MA, Çınar Ş, Çapkın K, Yağcı A, Cesur M, Bilgin F, Bulut C, Uysal R, Obertegger U, Boscaini A, Flaim G, Salmaso N, Cerasino L, Richardson J, Visser PM, Verspagen JMH, Karan T, Soylu EN, Maraşlıoğlu F, Napiórkowska-Krzebietke A, Ochocka A, Pasztaleniec A, Antão-Geraldes AM, Vasconcelos V, Morais J, Vale M, Köker L, Akçaalan R, Albay M, Špoljarić Maronić D, Stević F, Žuna Pfeiffer T, Fonvielle J, Straile D, Rothhaupt KO, Hansson LA, Urrutia-Cordero P, Bláha L, Geriš R, Fránková M, Koçer MAT, Alp MT, Remec-Rekar S, Elersek T, Triantis T, Zervou SK, Hiskia A, Haande S, Skjelbred B, Madrecka B, Nemova H, Drastichova I, Chomova L, Edwards C, Sevindik TO, Tunca H, Önem B, Aleksovski B, Krstić S, Vucelić IB, Nawrocka L, Salmi P, Machado-Vieira D, de Oliveira AG, Delgado-Martín J, García D, Cereijo JL, Gomà J, Trapote MC, Vegas-Vilarrúbia T, Obrador B, Grabowska M, Karpowicz M, Chmura D, Úbeda B, Gálvez JÁ, Özen A, Christoffersen KS, Warming TP, Kobos J, Mazur-Marzec H, Pérez-Martínez C, Ramos-Rodríguez E, Arvola L, Alcaraz-Párraga P, Toporowska M, Pawlik-Skowronska B, Niedźwiecki M, Pęczuła W, Leira M, Hernández A, Moreno-Ostos E, Blanco JM, Rodríguez V, Montes-Pérez JJ, Palomino RL, Rodríguez-Pérez E, Carballeira R, Camacho A, Picazo A, Rochera C, Santamans AC, Ferriol C, Romo S, Soria JM, Dunalska J, Sieńska J, Szymański D, Kruk M, Kostrzewska-Szlakowska I, Jasser I, Žutinić P, Gligora Udovič M, Plenković-Moraj A, Frąk M, Bańkowska-Sobczak A, Wasilewicz M, Özkan K, Maliaka V, Kangro K, Grossart HP, Paerl HW, Carey CC, and Ibelings BW
- Subjects
- Alkaloids, Climate Change, Cyanobacteria Toxins, Environmental Monitoring, Europe, Temperature, Uracil analysis, Bacterial Toxins analysis, Cyanobacteria, Lakes microbiology, Microcystins analysis, Tropanes analysis, Uracil analogs & derivatives, Water Pollutants analysis
- Abstract
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota. Generalized linear models showed that a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability. Increases in TDI were explained through a significant increase in toxin variants such as MC-YR, anatoxin and cylindrospermopsin, accompanied by a decreasing presence of MC-LR. While global warming continues, the direct and indirect effects of increased lake temperatures will drive changes in the distribution of cyanobacterial toxins in Europe, potentially promoting selection of a few highly toxic species or strains., Competing Interests: The authors declare no conflict of interest.
- Published
- 2018
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43. A valid method to determine the site of drowning.
- Author
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Carballeira R, Vieira DN, Febrero-Bande M, and Muñoz Barús JI
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- Animal Fur pathology, Animals, Bone Marrow pathology, Forensic Pathology methods, Fresh Water, Kidney pathology, Lung pathology, Models, Animal, Myocardium pathology, Plankton, Rats, Sprague-Dawley, Reproducibility of Results, Spleen pathology, Stomach pathology, Diatoms, Drowning diagnosis
- Abstract
The diatom test is considered a useful aid in determining the site of death from drowning. Nevertheless, there is disagreement within the scientific community concerning its reliability, and its findings have been challenged and sometimes overturned in courts of law. Using a model based on animal experimentation, we have developed a diatom test to discriminate between the locations of drowning sites from different aquatic systems. We carried out a complementary combination of quantitative and qualitative analyses together with a statistical analysis based on the Kullback-Leibler distance of the samples. A restrictive selection of exclusive diatom species from each reservoir was also made. This approach allowed us to validate the usefulness of the diatom test in determining the location of the site of drowning.
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- 2018
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44. Clinical utility of partially hydrolyzed guar gum: review of evidence and experience
- Author
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Cantón Blanco A, Fernández López Mª, Lugo Rodríguez G, Martínez Olmos MÁ, Palmeiro Carballeira R, Pita Gutiérrez F, and Tejera Pérez C
- Subjects
- Diarrhea etiology, Diarrhea prevention & control, Dietary Fiber pharmacology, Enteral Nutrition adverse effects, Galactans pharmacology, Humans, Hydrolysis, Mannans pharmacology, Plant Gums pharmacology, Galactans therapeutic use, Mannans therapeutic use, Plant Gums therapeutic use
- Abstract
Introduction: Dietary fiber is an important component of human diet. Since each fiber type has specific metabolic and gastrointestinal function effects, in each specific pathology we will have to choose the optimum type of fiber, considering its chemical, physical and physiological properties. Objective:to put partially hydrolyzed guar gum in its place in the complex framework of dietary fiber, to review its physicochemical properties and possible mechanisms of action; as well as its potential usefulness in different clinical situations in adult patients. Methods: non-systematic review in Medline. Results: Partially hydrolyzed guar gum (PHGG) is obtained from a partial enzymatic hydrolysis of guar gum by the enzyme β-endo-mannanase. It is a soluble, highly fermentable fiber with low viscosity. The fermentation of GGPH in colon produces short chain fatty acids, implicated in the main pathophysiological mechanisms responsible for their clinical effects. Its use in enteral nutrition associated diarrhea is supported by several studies and by the recommendations of scientific societies such as the European Society for Clinical Nutrition and Metabolism and the American Society for Parenteral and Enteral Nutrition. The usefulness of GGPH has been studied in many other clinical situations, such as diabetes, hypercholesterolemia, bacterial overgrowth, etc. with promising results. Conclusions: GGPH is useful in the management of enteral nutrition associated diarrhea. In other clinical situations, more quality studies would be necessary in order to make concrete recommendations.
- Published
- 2017
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45. Needle washing increases the diagnostic yield of fine needle aspiration biopsy of the thyroid gland.
- Author
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Penín Álvarez M, San Miguel Fraile P, Seoane Cruz I, Cunqueiro Sarmiento R, Palmeiro Carballeira R, and Luna Cano R
- Subjects
- Female, Humans, Male, Middle Aged, Biopsy, Fine-Needle methods, Thyroid Gland pathology, Thyroid Nodule pathology
- Abstract
Background and Objective: Nodular thyroid disease is a common condition in our clinical practice, and fine needle aspiration biopsy (FNAB) is the diagnostic procedure of choice. Its main limitation is the number of non-diagnostic samples. Since the Bethesda criteria were implemented in 2007 (a consensus document on the morphologic criteria and diagnostic terminology for interpretation of thyroid cytological samples), a higher prevalence of non-diagnostic FNAB was shown. In addition to the standard technique, we decided to collect and centrifuge the material remaining in puncture needles by washing them in a ThinPrep(®) solution, and to assess the increase in the diagnostic yield of FNAB after this change., Patients and Methods: Systematic sampling of 168 patients who underwent FNAB at the Nutrition and Endocrinology Department of the Xeral-Cies Hospital (Vigo, Spain) from January 2010 to November 2011. Patients were classified into 2 groups: 75 patients in whom the residual material in the needle was not collected (non-washing group) and 93 patients in whom the material was collected (washing-group). All FNABs were performed by the same endocrinologist. Data are shown as percentage (± standard error) for ordinal variables or as mean (± standard deviation) for quantitative variables. A Chi-square test was used for statistical analysis of comparisons between percentages, and a Student's t test for comparisons between quantitative variables. A value of p<0.05 was considered statistically significant., Results: No significant differences were found between the groups in age, sex, plasma TSH levels or nodule size. The rate of non-diagnostic FNABs was 44% (± 0.06) in the non-washing group and 17.2% (± 0.04%) in the washing group, with a significant difference (p < 0.01)., Discussion: Collection and subsequent processing of the residual material in the needle after FNAB significantly decreased the prevalence of non-diagnostic punctures in our patients. Collection of the residual material in the needle in this way is strongly recommended., (Copyright © 2012 SEEN. Published by Elsevier Espana. All rights reserved.)
- Published
- 2013
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46. [Phenotype of the C634Y mutation in the RET proto-oncogene in MEN2A: report of a family].
- Author
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Sánchez Sobrino P, Páramo Fernández C, Gil Gil P, Mantiñán Gil B, Pérez Pedrosa A, Palmeiro Carballeira R, and García-Mayor RV
- Subjects
- Adult, Child, Humans, Multiple Endocrine Neoplasia Type 2a genetics, Pedigree, Phenotype, Proto-Oncogene Mas, Retrospective Studies, Mutation, Proto-Oncogene Proteins c-ret genetics
- Abstract
Background and Objectives: Genetic testing of RET proto-oncogen allows an early diagnosis of Multiple Endocrine Neoplasia syndrome type 2 and establish a correlation between genotype and clinical manifestations. The purpose of this study was to demonstrate the benefits of an early diagnosis with genetic testing followed by prompt surgery on the cure of MTC versus a later diagnosis with serum calcitonin., Patients and Method: Retrospective descriptive study of 8 members of a MEN 2A family by C634Y mutation. We performed serum calcitonin screening until 1999 and subsequently RET genetic testing was obtained. Carriers underwent total thyroidectomy and periodic determination of calcitonin, urinary metanephrines, calcium, phosphorus and neck and abdominal imaging techniques., Results: Five patients were diagnosed by calcitonin familial screening and all of them have high calcitonin by now. Three patients were diagnosed by genetic testing (an adult and two children) and they are free of disease. Calcitonin was closely monitored in children and they underwent surgery when it started to raise, at 6 and 10 years old respectively, finding nodular C-cell hyperplasia in both. Of 8 carriers 3 developed pheochromocytomas, bilateral and asynchronous, one-half had normal urinary metanephrines and two of them were simultaneous with MTC. No patient had biochemical data suggesting hyperparathyroidism although in one patient multiple parathyroid adenomas were found at thyroidectomy., Conclusions: RET genetic analysis has achieved an early diagnosis and treatment with no development of MTC in our patients, adjusting the time and type of surgery and allowing a genotype-phenotype correlation. It demonstrates how a genetic alteration is associated with a pathology that we can prevent and manage improving the prognosis of our patients., (Copyright © 2010 SEEN. Published by Elsevier Espana. All rights reserved.)
- Published
- 2011
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47. [Behçet disease with isolated ACTH deficiency].
- Author
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Sánchez Sobrino P, Páramo Fernández C, Lamas Ferreiro JL, Mantiñán Gil B, Palmeiro Carballeira R, and García-Mayor RV
- Subjects
- Aged, Humans, Male, Adrenocorticotropic Hormone deficiency, Behcet Syndrome etiology
- Abstract
We report a case of a patient with longstanding Behçet disease, with neurological symptoms predominantly, who became hospitalized for adrenal insufficiency, caused by isolated deficiency of corticotropin (DAACTH). DAACTH is a typical characteristic of hypophysitis, reported in association with many autoimmune diseases. Nevertheless, hypothalamic-pituitary injury in Behçet disease is exceptional. We review the literature and possible mechanisms of this association until now not reported.
- Published
- 2009
- Full Text
- View/download PDF
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