Massive die-offs of freshwater bivalves as resource pulses
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/6764 |
Resumo: | The winter of 2009/2010 was particularly severe in Northern Portugal resulting in higher river flow levels. A study was undertaken to assess the impact of this situation on several populations of freshwater bivalves (e.g., Anodonta anatina, Corbicula fluminea, Margaritifera margaritifera, Potomida littoralis and Unio delphinus) in the catchments of the Rivers Minho, Douro, Taˆ mega, Tua and Sabor. Massive die-offs occurred for all species in all rivers, resulting in the removal of great numbers and biomass from the riverbed to the adjacent riverbanks, reaching maximum values of 2280 individuals.mx2 and 10 225 g wet weight.mx2, respectively. The invasive Asian clam C. fluminea had both highest density and biomass (however, this invasive bivalve is not dominant in several surveyed sites, and some rivers are still not colonized by this species). Results show that the quantitative and qualitative importance of this carrion transfer to the riverbank should be incorporated in future studies on the assessment of ecosystem function, contributing to a better understanding of the role of freshwater bivalves as resource pulses in adjacent terrestrial habitats. Some of the affected species have conservational importance and these extreme climatic events are predicted to increase in the future. These massive die-off events should be incorporated into management plans and selected restoration measures such as rapid relocation of endangered native mussels back to the riverbed can be easily applied to lessen possible impacts. |
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Massive die-offs of freshwater bivalves as resource pulsesCorbicula flumineaEcosystem functioningFloodsResource pulsesUnionoid musselsThe winter of 2009/2010 was particularly severe in Northern Portugal resulting in higher river flow levels. A study was undertaken to assess the impact of this situation on several populations of freshwater bivalves (e.g., Anodonta anatina, Corbicula fluminea, Margaritifera margaritifera, Potomida littoralis and Unio delphinus) in the catchments of the Rivers Minho, Douro, Taˆ mega, Tua and Sabor. Massive die-offs occurred for all species in all rivers, resulting in the removal of great numbers and biomass from the riverbed to the adjacent riverbanks, reaching maximum values of 2280 individuals.mx2 and 10 225 g wet weight.mx2, respectively. The invasive Asian clam C. fluminea had both highest density and biomass (however, this invasive bivalve is not dominant in several surveyed sites, and some rivers are still not colonized by this species). Results show that the quantitative and qualitative importance of this carrion transfer to the riverbank should be incorporated in future studies on the assessment of ecosystem function, contributing to a better understanding of the role of freshwater bivalves as resource pulses in adjacent terrestrial habitats. Some of the affected species have conservational importance and these extreme climatic events are predicted to increase in the future. These massive die-off events should be incorporated into management plans and selected restoration measures such as rapid relocation of endangered native mussels back to the riverbed can be easily applied to lessen possible impacts.EDP SciencesBiblioteca Digital do IPBSousa, RonaldoVarandas, SimoneCortes, Rui M.V.Teixeira, AmílcarLopes-Lima, ManuelMachado, JorgeGuilhermino, Lúcia2012-04-10T10:56:25Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/6764engSousa, R.; Varandas, S.; Cortes, R.; Teixeira, A.; Lopes-Lima, M.; Machado, J.; Guilhermino, L. (2012). Massive die-offs of freshwater bivalves as resource pulses. Annales de Limnologie - International Journal of Limnology. ISSN 0003-4088. 48:1, p. 105–1120003-408810.1051/limn/20120032100-000Xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:16:57Zoai:bibliotecadigital.ipb.pt:10198/6764Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:58:43.834435Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Massive die-offs of freshwater bivalves as resource pulses |
title |
Massive die-offs of freshwater bivalves as resource pulses |
spellingShingle |
Massive die-offs of freshwater bivalves as resource pulses Sousa, Ronaldo Corbicula fluminea Ecosystem functioning Floods Resource pulses Unionoid mussels |
title_short |
Massive die-offs of freshwater bivalves as resource pulses |
title_full |
Massive die-offs of freshwater bivalves as resource pulses |
title_fullStr |
Massive die-offs of freshwater bivalves as resource pulses |
title_full_unstemmed |
Massive die-offs of freshwater bivalves as resource pulses |
title_sort |
Massive die-offs of freshwater bivalves as resource pulses |
author |
Sousa, Ronaldo |
author_facet |
Sousa, Ronaldo Varandas, Simone Cortes, Rui M.V. Teixeira, Amílcar Lopes-Lima, Manuel Machado, Jorge Guilhermino, Lúcia |
author_role |
author |
author2 |
Varandas, Simone Cortes, Rui M.V. Teixeira, Amílcar Lopes-Lima, Manuel Machado, Jorge Guilhermino, Lúcia |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Sousa, Ronaldo Varandas, Simone Cortes, Rui M.V. Teixeira, Amílcar Lopes-Lima, Manuel Machado, Jorge Guilhermino, Lúcia |
dc.subject.por.fl_str_mv |
Corbicula fluminea Ecosystem functioning Floods Resource pulses Unionoid mussels |
topic |
Corbicula fluminea Ecosystem functioning Floods Resource pulses Unionoid mussels |
description |
The winter of 2009/2010 was particularly severe in Northern Portugal resulting in higher river flow levels. A study was undertaken to assess the impact of this situation on several populations of freshwater bivalves (e.g., Anodonta anatina, Corbicula fluminea, Margaritifera margaritifera, Potomida littoralis and Unio delphinus) in the catchments of the Rivers Minho, Douro, Taˆ mega, Tua and Sabor. Massive die-offs occurred for all species in all rivers, resulting in the removal of great numbers and biomass from the riverbed to the adjacent riverbanks, reaching maximum values of 2280 individuals.mx2 and 10 225 g wet weight.mx2, respectively. The invasive Asian clam C. fluminea had both highest density and biomass (however, this invasive bivalve is not dominant in several surveyed sites, and some rivers are still not colonized by this species). Results show that the quantitative and qualitative importance of this carrion transfer to the riverbank should be incorporated in future studies on the assessment of ecosystem function, contributing to a better understanding of the role of freshwater bivalves as resource pulses in adjacent terrestrial habitats. Some of the affected species have conservational importance and these extreme climatic events are predicted to increase in the future. These massive die-off events should be incorporated into management plans and selected restoration measures such as rapid relocation of endangered native mussels back to the riverbed can be easily applied to lessen possible impacts. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-04-10T10:56:25Z 2012 2012-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/6764 |
url |
http://hdl.handle.net/10198/6764 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sousa, R.; Varandas, S.; Cortes, R.; Teixeira, A.; Lopes-Lima, M.; Machado, J.; Guilhermino, L. (2012). Massive die-offs of freshwater bivalves as resource pulses. Annales de Limnologie - International Journal of Limnology. ISSN 0003-4088. 48:1, p. 105–112 0003-4088 10.1051/limn/2012003 2100-000X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDP Sciences |
publisher.none.fl_str_mv |
EDP Sciences |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799135207373144064 |