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Global ecological, social and economic impacts of marine plastic Полный текст
2019
Beaumont, Nicola J. | Aanesen, Margrethe | Austen, Melanie C. | Börger, Tobias | Clark, James R. | Cole, Matthew | Hooper, Tara | Lindeque, Penelope K. | Pascoe, Christine | Wyles, Kayleigh J.
Global ecological, social and economic impacts of marine plastic Полный текст
2019
Beaumont, Nicola J. | Aanesen, Margrethe | Austen, Melanie C. | Börger, Tobias | Clark, James R. | Cole, Matthew | Hooper, Tara | Lindeque, Penelope K. | Pascoe, Christine | Wyles, Kayleigh J.
This research takes a holistic approach to considering the consequences of marine plastic pollution. A semi-systematic literature review of 1191 data points provides the basis to determine the global ecological, social and economic impacts. An ecosystem impact analysis demonstrates that there is global evidence of impact with medium to high frequency on all subjects, with a medium to high degree of irreversibility. A novel translation of these ecological impacts into ecosystem service impacts provides evidence that all ecosystem services are impacted to some extent by the presence of marine plastic, with a reduction in provision predicted for all except one. This reduction in ecosystem service provision is evidenced to have implications for human health and wellbeing, linked particularly to fisheries, heritage and charismatic species, and recreation.
Показать больше [+] Меньше [-]Global ecological, social and economic impacts of marine plastic Полный текст
2019
Beaumont, Nicola J | Aanesen, Margrethe | Austen, Melanie C. | Borger, Tobias | Clark, James R | Cole, Matthew | Hooper, Tara | Lindeque, Penelope K. | Pascoe, Christine | Wyles, Kayleigh J
This research takes a holistic approach to considering the consequences of marine plastic pollution. A semi-systematic literature review of 1191 data points provides the basis to determine the global ecological, social and economic impacts. An ecosystem impact analysis demonstrates that there is global evidence of impact with medium to high frequency on all subjects, with a medium to high degree of irreversibility. A novel translation of these ecological impacts into ecosystem service impacts provides evidence that all ecosystem services are impacted to some extent by the presence of marine plastic, with a reduction in provision predicted for all except one. This reduction in ecosystem service provision is evidenced to have implications for human health and wellbeing, linked particularly to fisheries, heritage and charismatic species, and recreation.
Показать больше [+] Меньше [-]Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa, Portugal Полный текст
2019
Mendes Sousa, Carlos A. | Sousa, Carlos A.M. | Delgado, J. (Joaquín) | Szalaj, Dorota | Boski, Tomasz
Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa, Portugal Полный текст
2019
Mendes Sousa, Carlos A. | Sousa, Carlos A.M. | Delgado, J. (Joaquín) | Szalaj, Dorota | Boski, Tomasz
Metal history in a natural system was described since the early Holocene by analysing the preserved subsurface sediment record and present-day surface sediments. Normalized geochemical data from six sediment cores (129 samples) was compared with 28 surface samples. Pre-anthropic sedimentary environments allowed the definition of local natural Background Values. Enrichment Factors were then used for elements discrimination in terms of natural and anthropogenic inputs to the system. While subsurface results displayed a similar behaviour in all cores, pointing to largely undisturbed system, surface sediments show significant contamination, with high enrichment factors for As, Cu, Pb, and Zn. Other metal pollutants have generally low enrichment values, suggesting natural conditions. Surface results were reproduced as metal enrichment maps which evidenced anthropogenic sources in specific locations. This work reveals the importance of combining subsurface and surface geochemical data with mapping techniques in order to better evaluate the environmental quality of a natural system.
Показать больше [+] Меньше [-]Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa, Portugal Полный текст
2019
Mendes da Silva de Sousa, Carlos A | Delgado, Joaquin | Szalaj, Dorota | Boski, T.
Metal history in a natural system was described since the early Holocene by analysing the preserved subsurface sediment record and present-day surface sediments. Normalized geochemical data from six sediment cores (129 samples) was compared with 28 surface samples. Pre-anthropic sedimentary environments allowed the definition of local natural Background Values. Enrichment Factors were then used for elements discrimination in terms of natural and anthropogenic inputs to the system. While subsurface results displayed a similar behaviour in all cores, pointing to largely undisturbed system, surface sediments show significant contamination, with high enrichment factors for As, Cu, Pb, and Zn. Other metal pollutants have generally low enrichment values, suggesting natural conditions. Surface results were reproduced as metal enrichment maps which evidenced anthropogenic sources in specific locations. This work reveals the importance of combining subsurface and surface geochemical data with mapping techniques in order to better evaluate the environmental quality of a natural system. | SIHER project [PTDC/CTE-GIX112236/2009] | EU Erasmus Mundus Joint Doctorate in Marine and Coastal Management (MACOMA) fellowship grant, under University of Algarve | EU Erasmus Mundus Joint Doctorate in Marine and Coastal Management (MACOMA) fellowship grant, under University of Cadiz | info:eu-repo/semantics/publishedVersion
Показать больше [+] Меньше [-]Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web Полный текст
2019
Chouvelon, Tiphaine | Strady, Emilie | Harmelin-Vivien, M. L. (Mireille L.) | Radakovitch, Olivier | Brach-Papa, Christophe | Crochet, Sylvette | Knoery, Joël | Rozuel, Emmanuelle | Thomas, Bastien | Tronczynski, Jacek | Chiffoleau, Jean-François
Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web Полный текст
2019
Chouvelon, Tiphaine | Strady, Emilie | Harmelin-Vivien, M. L. (Mireille L.) | Radakovitch, Olivier | Brach-Papa, Christophe | Crochet, Sylvette | Knoery, Joël | Rozuel, Emmanuelle | Thomas, Bastien | Tronczynski, Jacek | Chiffoleau, Jean-François
Trace metal contamination in the European sardine and anchovy food web was investigated in the Gulf of Lions, NW Mediterranean Sea, including seawater and size fractions of plankton. The results highlighted: i) higher and more variable concentrations in the smaller plankton size classes for all metals except cadmium; ii) higher concentrations in anchovy versus sardine for all elements except lead; iii) different patterns of metal bioaccumulation through the food web: cobalt, nickel, copper, silver, lead and zinc displayed continuously decreasing concentrations (with the exception of increased zinc in fish only), while mercury concentrations dropped considerably in larger plankton size classes and rose significantly in fish. Lastly, cadmium concentrations were found to be highest in intermediate plankton size classes, with very low levels in fish. The need to efficiently characterize the biological composition of plankton in order to fully identify its role in the mobilization and transfer of metals was highlighted.
Показать больше [+] Меньше [-]Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web Полный текст
2019
Chouvelon, Tiphaine | Strady, Emilie | Harmelin-vivien, Mireille | Radakovitch, Olivier | Brach-papa, Christophe | Crochet, Sylvette | Knoery, Joel | Rozuel, Emmanuelle | Thomas, Bastien | Tronczynski, Jacek | Chiffoleau, Jean-francois
Trace metal contamination in the European sardine and anchovy food web was investigated in the Gulf of Lions, NW Mediterranean Sea, including seawater and size fractions of plankton. The results highlighted: i) higher and more variable concentrations in the smaller plankton size classes for all metals except cadmium; ii) higher concentrations in anchovy versus sardine for all elements except lead; iii) different patterns of metal bioaccumulation through the food web: cobalt, nickel, copper, silver, lead and zinc displayed continuously decreasing concentrations (with the exception of increased zinc in fish only), while mercury concentrations dropped considerably in larger plankton size classes and rose significantly in fish. Lastly, cadmium concentrations were found to be highest in intermediate plankton size classes, with very low levels in fish. The need to efficiently characterize the biological composition of plankton in order to fully identify its role in the mobilization and transfer of metals was highlighted.
Показать больше [+] Меньше [-]Microplastics in grey seal (Halichoerus grypus) intestines: Are they associated with parasite aggregations? Полный текст
2019
Hernandez-Milian, G. | Lusher, A. | MacGabban, S. | Rogan, E.
Microplastics in grey seal (Halichoerus grypus) intestines: Are they associated with parasite aggregations? Полный текст
2019
Hernandez-Milian, G. | Lusher, A. | MacGabban, S. | Rogan, E.
Between 2012 and 2015, 13 grey seals were recovered from trammel nets targeting monkfish and rays off the south coast of Ireland. Incidence and distribution of microplastics were investigated along the intestines of bycaught seals. No macrodebris items were found, whereas microplastics were detected in all seals. A total of 363 microplastics items were identified (85% fibers, 14% fragments, 1% films). Estimation of microplastic ingestion based on prey ingestion (245 particles) was lower than the observed data. Acantocephala parasites (n = 1543) were found in 12 seals, with an average of 74.5 ± 67.7 parasites per seal. Distribution of microplastics varied between seals, although microplastics tended to accumulate in areas where more parasites were aggregated; however, there was no significant relationship between the number of parasites and microplastics was found. Seals recovered from nets appear to be a good source to monitor the incidence of microplastic pollution within the coastal food webs.
Показать больше [+] Меньше [-]Microplastics in grey seal (Halichoerus grypus) intestines: Are they associated with parasite aggregations? Полный текст
2019
Hernandez-Milian, G | Lusher, A | MacGabban, S | Rogan, E
Embargo until 28 June 2021 | Between 2012 and 2015, 13 grey seals were recovered from trammel nets targeting monkfish and rays off the south coast of Ireland. Incidence and distribution of microplastics were investigated along the intestines of bycaught seals. No macrodebris items were found, whereas microplastics were detected in all seals. A total of 363 microplastics items were identified (85% fibers, 14% fragments, 1% films). Estimation of microplastic ingestion based on prey ingestion (245 particles) was lower than the observed data. Acantocephala parasites (n = 1543) were found in 12 seals, with an average of 74.5 ± 67.7 parasites per seal. Distribution of microplastics varied between seals, although microplastics tended to accumulate in areas where more parasites were aggregated; however, there was no significant relationship between the number of parasites and microplastics was found. Seals recovered from nets appear to be a good source to monitor the incidence of microplastic pollution within the coastal food webs. | acceptedVersion
Показать больше [+] Меньше [-]Microplastics FTIR characterisation and distribution in the water column and digestive tracts of small pelagic fish in the Gulf of Lions Полный текст
2019
Lefebvre, Charlotte | Saraux, Claire | Heitz, Olivier | Nowaczyk, Antoine | Bonnet, Delphine
Microplastics FTIR characterisation and distribution in the water column and digestive tracts of small pelagic fish in the Gulf of Lions Полный текст
2019
Lefebvre, Charlotte | Saraux, Claire | Heitz, Olivier | Nowaczyk, Antoine | Bonnet, Delphine
This study aims at quantifying and characterising microplastics (MP) distribution in the water column of the NW Mediterranean Sea as well as MP ingestion by the 2 main planktivorous fish of the area, sardine and anchovy.Debris of similar sizes were found in all water column samples and in all but 2 fish guts (out of 169). MP were found in 93% of water column samples with an average concentration of 0.23 ± 0.20 MP·m⁻³, but in only 12% of sardines (0.20 ± 0.69 MP·ind⁻¹) and 11% of anchovies (0.11 ± 0.31 MP·ind⁻¹). Fibres were the only shape of MP encountered and polyethylene terephthalate was the main polymer identified in water columns (61%), sardines (71%) and anchovies (89%).This study confirms the ubiquity of MP in the Mediterranean Sea and imparts low occurrence in fish digestive tracts.
Показать больше [+] Меньше [-]Microplastics FTIR characterisation and distribution in the water column and digestive tracts of small pelagic fish in the Gulf of Lions Полный текст
2019
Lefebvre, Charlotte | Saraux, Claire | Heitz, Olivier | Nowaczyk, Antoine | Bonnet, Delphine
This study aims at quantifying and characterising microplastics (MP) distribution in the water column of the NW Mediterranean Sea as well as MP ingestion by the 2 main planktivorous fish of the area, sardine and anchovy. Debris of similar sizes were found in all water column samples and in all but 2 fish guts (out of 169). MP were found in 93% of water column samples with an average concentration of 0.23 ± 0.20 MP·m−3, but in only 12% of sardines (0.20 ± 0.69 MP·ind−1) and 11% of anchovies (0.11 ± 0.31 MP·ind−1). Fibres were the only shape of MP encountered and polyethylene terephthalate was the main polymer identified in water columns (61%), sardines (71%) and anchovies (89%). This study confirms the ubiquity of MP in the Mediterranean Sea and imparts low occurrence in fish digestive tracts.
Показать больше [+] Меньше [-]Endocrine and reproductive endpoints of Notothenia rossii and N. coriiceps: A baseline study for ecotoxicological monitoring in Antarctic waters Полный текст
2019
Ferreira, María Florencia | Lo Nostro, Fabiana | Honji, Renato | Ansaldo, Martin | Genovese, Griselda
Endocrine and reproductive endpoints of Notothenia rossii and N. coriiceps: A baseline study for ecotoxicological monitoring in Antarctic waters Полный текст
2019
Ferreira, María Florencia | Lo Nostro, Fabiana | Honji, Renato | Ansaldo, Martin | Genovese, Griselda
Pollution threats Antarctica and scientists blame xenobiotics and anthropic activities. Yet little is known about their effect on Antarctic ichthyofauna. Accordingly, we investigated the endocrine system of male fish Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) collected during Austral summer. For N. rossii, hormone levels of estradiol, testosterone, and 11-ketotestosterone were higher in fish collected during March than those of January; whereas for N. coriiceps estradiol and androgens levels were higher and lower in March, respectively. Histological analysis of the testes showed an unrestricted lobular type with no pathological alterations. However, detection of vitellogenin-like in plasma and skin mucus were seen in 75% of N. coriiceps males and 7% of N. rossii males. This is the first report of mucus vitellogenin-like detection as a non-invasive biomarker of endocrine disruption in notothenioid males and settles a baseline for future studies of reproductive biology and endocrine disruption in Antarctic fishes.
Показать больше [+] Меньше [-]Endocrine and reproductive endpoints of Notothenia rossii and N. coriiceps: A baseline study for ecotoxicological monitoring in Antarctic waters Полный текст
2019
Ferreira, María Florencia | Lo Nostro, Fabiana Laura | Honji, Renato Massaaki | Ansaldo, Martin | Genovese, Griselda
Pollution threats Antarctica and scientists blame xenobiotics and anthropic activities. Yet little is known about their effect on Antarctic ichthyofauna. Accordingly, we investigated the endocrine system of male fish Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) collected during Austral summer. For N. rossii, hormone levels of estradiol, testosterone, and 11-ketotestosterone were higher in fish collected during March than those of January; whereas for N. coriiceps estradiol and androgens levels were higher and lower in March, respectively. Histological analysis of the testes showed an unrestricted lobular type with no pathological alterations. However, detection of vitellogenin-like in plasma and skin mucus were seen in 75% of N. coriiceps males and 7% of N. rossii males. This is the first report of mucus vitellogenin-like detection as a non-invasive biomarker of endocrine disruption in notothenioid males and settles a baseline for future studies of reproductive biology and endocrine disruption in Antarctic fishes. | Fil: Ferreira, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Ecotoxicología Acuática; Argentina | Fil: Lo Nostro, Fabiana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Ecotoxicología Acuática; Argentina | Fil: Honji, Renato Massaaki. Universidade de Sao Paulo; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | Fil: Ansaldo, Martin. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina | Fil: Genovese, Griselda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Ecotoxicología Acuática; Argentina
Показать больше [+] Меньше [-]Assessing the source of oil deposited in the surface sediment of Mormugao Port, Goa - A case study of MV Qing incident Полный текст
2019
Suneel, V. | Saha, Mahua | Rathore, Chayanika | Sequeira, Jenica | Mohan, P.M Nikhil | Ray, Durbar | Veerasingam, S. | Rao, V Trinadha | Vethamony, P.
Assessing the source of oil deposited in the surface sediment of Mormugao Port, Goa - A case study of MV Qing incident Полный текст
2019
Suneel, V. | Saha, Mahua | Rathore, Chayanika | Sequeira, Jenica | Mohan, P.M Nikhil | Ray, Durbar | Veerasingam, S. | Rao, V Trinadha | Vethamony, P.
In June 2016, a cruise vessel was grounded in the Mormugao Port, resulting in unnoticed oil spill. The surface water and sediment samples were collected from the vicinity of the ship, and also an oil sample from the ship (OIL). These samples were subject to petroleum biomarker such as pentacyclic triterpenes (hopanes) and compound specific carbon isotopic (δ¹³C) analyses to assess the source of hydrocarbon pollution in the Mormugao Port. While no clear trend was observed in water samples, the bottom surface sediments did show an identical pattern of hopanes with the oil. The chemometric analyses of hopane Diagnostic Ratios (DRs) and δ¹³C ratios confirmed the ship oil as the source of oil pollution in sediments. Whereas the water is comparatively more dynamic than the sediment, the physical processes arising out of winds, waves, tides and currents might have dispersed the oil away from the grounded ship.
Показать больше [+] Меньше [-]Assessing the source of oil deposited in the surface sediment of Mormugao Port, Goa - A case study of MV Qing incident Полный текст
2019
Suneel V. | Saha M. | Rathore C. | Sequeira J. | Mohan P.M.N. | Ray D. | Veerasingam S. | Rao V.T. | Vethamony P.
In June 2016, a cruise vessel was grounded in the Mormugao Port, resulting in unnoticed oil spill. The surface water and sediment samples were collected from the vicinity of the ship, and also an oil sample from the ship (OIL). These samples were subject to petroleum biomarker such as pentacyclic triterpenes (hopanes) and compound specific carbon isotopic (?13C) analyses to assess the source of hydrocarbon pollution in the Mormugao Port. While no clear trend was observed in water samples, the bottom surface sediments did show an identical pattern of hopanes with the oil. The chemometric analyses of hopane Diagnostic Ratios (DRs) and ?13C ratios confirmed the ship oil as the source of oil pollution in sediments. Whereas the water is comparatively more dynamic than the sediment, the physical processes arising out of winds, waves, tides and currents might have dispersed the oil away from the grounded ship. - 2019 Elsevier Ltd | We thank the Director, CSIR-NIO, Goa, for his constant support and interest in this study. We thank the Goa State Pollution Control Board for funding this project. Thanks to the GSPCB officials for their kind support during sample collection. Thanks to Dr Aninda Mazumdar and Dr Siby Kurian for providing ASE and Sample concentrator facilities. We also thank Sonam and Adarsh for their assistance during sample processing. This is CSIR-NIO contribution number 6400. Appendix A | Scopus
Показать больше [+] Меньше [-]Ficopomatus enigmaticus larval development assay: An application for toxicity assessment of marine sediments Полный текст
2019
Oliva, M. | Manzini, C. | Bontà Pittaluga, G. | Kozinkova, L. | De Marchi, L. | Freitas, R. | Fabi, G. | Pretti, C.
Ficopomatus enigmaticus larval development assay: An application for toxicity assessment of marine sediments Полный текст
2019
Oliva, M. | Manzini, C. | Bontà Pittaluga, G. | Kozinkova, L. | De Marchi, L. | Freitas, R. | Fabi, G. | Pretti, C.
Ficopomatus enigmaticus is a serpulid polychaete, reef-forming, dioecious gamete spawner throughout different seasons and in different salinity conditions. Due to these characteristics, its candidacy as a model organism to monitor both marine and brackish matrices was assessed. Marine sediments collected in a polluted area near the port of Ancona (Italy) were used as case study. Besides the chemical characterization of sediments, the larval development of F. enigmaticus was adopted as an assay for ecotoxicological assessment of sediments in addition to a regulatory bioassay battery with different organisms and endpoints. The quality of sediments was classified according to the Italian Ministerial Decree for sediment management (Ministerial Decree 173, 2016) by using the SEDI-QUAL-SOFT® (ver. 109.0) software developed by the Italian Environmental Protection Agency (ISPRA). The F. enigmaticus larval development assay showed a quite similar sensitivity to C. gigas larval development assays, indicating its potential use in a regulatory battery of bioassays.
Показать больше [+] Меньше [-]Ficopomatus enigmaticus larval development assay: an application for toxicity assessment of marine sediments Полный текст
2019
Oliva, M. | Manzini, C. | Pittaluga, G. Bontà | Kozinkova, L. | De Marchi, L. | Freitas, R. | Fabi, G. | Pretti, C.
Ficopomatus enigmaticus is a serpulid polychaete, reef-forming, dioecious gamete spawner throughout different seasons and in different salinity conditions. Due to these characteristics, its candidacy as a model organism to monitor both marine and brackish matrices was assessed. Marine sediments collected in a polluted area near the port of Ancona (Italy) were used as case study. Besides the chemical characterization of sediments, the larval development of F. enigmaticus was adopted as an assay for ecotoxicological assessment of sediments in addition to a regulatory bioassay battery with different organisms and endpoints. The quality of sediments was classified according to the Italian Ministerial Decree for sediment management (Ministerial Decree 173, 2016) by using the SEDI-QUAL-SOFT® (ver. 109.0) software developed by the Italian Environmental Protection Agency (ISPRA). The F. enigmaticus larval development assay showed a quite similar sensitivity to C. gigas larval development assays, indicating its potential use in a regulatory battery of bioassays. | published
Показать больше [+] Меньше [-]Metal pollution affects both native and non-indigenous biofouling recruitment in a subtropical island system Полный текст
2019
Ramalhosa, Patrício | Gestoso, Ignacio | Duarte, Bernardo | Caçador, Isabel | Canning-Clode, João
Metal pollution affects both native and non-indigenous biofouling recruitment in a subtropical island system Полный текст
2019
Ramalhosa, Patrício | Gestoso, Ignacio | Duarte, Bernardo | Caçador, Isabel | Canning-Clode, João
Hull fouling has been a driving force behind the development of most modern marine antifouling coatings that mainly contain copper based biocides to inhibit growth of fouling organisms. Despite these efforts, several non-indigenous species continue to be transferred via hull-fouling worldwide. In this study we designed a disturbance gradient with three commercial antifouling paints applied to PVC settling plates with different concentrations of copper oxide and allowed colonization of fouling communities in four marinas located at the Madeira Archipelago (NE Atlantic). Overall, the antifouling treatments were effective in decreasing the diversity of fouling communities and spatial variability across marinas was observed. Increasing exposure to metal pollutants decreases both species cover and total diversity, independently of their native or NIS condition. However, evidences found suggest that long-term effects of copper based antifouling coatings can be modulated by metal-resistant species allowing a secondary substrate for the epibiosis of other species to establish.
Показать больше [+] Меньше [-]Metal pollution affects both native and non-indigenous biofouling recruitment in a subtropical island system Полный текст
2019
Ramalhosa, Patrício | Gestoso, Ignacio | Duarte, Bernardo | Caçador, Isabel | Canning-Clode, João
Hull fouling has been a driving force behind the development of most modern marine antifouling coatings that mainly contain copper based biocides to inhibit growth of fouling organisms. Despite these efforts, several non-indigenous species continue to be transferred via hull-fouling worldwide. In this study we designed a disturbance gradient with three commercial antifouling paints applied to PVC settling plates with different concentrations of copper oxide and allowed colonization of fouling communities in four marinas located at the Madeira Archipelago (NE Atlantic). Overall, the antifouling treatments were effective in decreasing the diversity of fouling communities and spatial variability across marinas was observed. Increasing exposure to metal pollutants decreases both species cover and total diversity, independently of their native or NIS condition. However, evidences found suggest that long-term effects of copper based antifouling coatings can be modulated by metal-resistant species allowing a secondary substrate for the epibiosis of other species to establish. | info:eu-repo/semantics/publishedVersion
Показать больше [+] Меньше [-]Akashiwo sanguinea blooms in Chinese waters in 1998–2017 Полный текст
2019
Chen, Baohong | Kang, Wang | Kuai, Lin
Akashiwo sanguinea is a harmful—but not toxic—species that causes blooms around the world. In China, the first A. sanguinea bloom was recorded in Yantai in 1998. Until 2017, there were 31 occurrences of A. sanguinea blooms recorded in Chinese four seas, with large spatial distributions. Furthermore, these blooms were recorded in almost every month except November, December and January. It can be concluded that the 1990s represented the initial stage of A. sanguinea blooms, while the 2000s represented the spreading stage and the 2010s represented the burst stage in China.
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