Long-term changes in the production by estuarine macrobenthos affected by multiple stressors
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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/10316/21132 https://doi.org/10.1016/j.ecss.2010.12.006 |
Resumo: | The macrobenthic production of an estuarine system was evaluated over a 14-year study period in a seagrass bed and in a sandflat. Over this period, the estuary suffered severe eutrophication and extreme weather events with important impacts on the community, impairing system functioning and ultimately the goods and services provided by the estuary (decline in the seagrass bed, decreased community production and/or a boost in the production by opportunist species, such as Hydrobia ulvae). Following the anthropogenic impacts, management measures were introduced which allowed a gradual recovery of the seagrass bed and a new macrobenthic community structure manifested by production increases of slow-growing species, such as Scrobicularia plana and Hediste diversicolor. There was a gradual re-orientation of energy into population biomass instead of population density but this was not translated into higher community production, mainly due to the decreased production of opportunist species (H. ulvae and several polychaetes). Several weather extreme events occurred during this post-mitigation phase - floods, heatwaves and droughts, all of which had negative impacts on macrobenthic dynamics and production. The heatwaves led to the greatest decreases in macrobenthic production, mainly due to S. plana perhaps associated with its physiological intolerance of higher temperatures. The prolonged drought that followed the heatwaves maintained low levels of production by S. plana and H. ulvae. With climate change, the frequency and intensity of extreme weather events are likely to increase worldwide so that the recovery of impacted/disturbed systems from impacts such as eutrophication may be seriously affected by these additional stressors, compromising attempts to improve the ecological quality of estuarine ecosystems. |
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Long-term changes in the production by estuarine macrobenthos affected by multiple stressorsMacrobenthos productionEstuaryEutrophicationClimate extremes,RecoveryThe macrobenthic production of an estuarine system was evaluated over a 14-year study period in a seagrass bed and in a sandflat. Over this period, the estuary suffered severe eutrophication and extreme weather events with important impacts on the community, impairing system functioning and ultimately the goods and services provided by the estuary (decline in the seagrass bed, decreased community production and/or a boost in the production by opportunist species, such as Hydrobia ulvae). Following the anthropogenic impacts, management measures were introduced which allowed a gradual recovery of the seagrass bed and a new macrobenthic community structure manifested by production increases of slow-growing species, such as Scrobicularia plana and Hediste diversicolor. There was a gradual re-orientation of energy into population biomass instead of population density but this was not translated into higher community production, mainly due to the decreased production of opportunist species (H. ulvae and several polychaetes). Several weather extreme events occurred during this post-mitigation phase - floods, heatwaves and droughts, all of which had negative impacts on macrobenthic dynamics and production. The heatwaves led to the greatest decreases in macrobenthic production, mainly due to S. plana perhaps associated with its physiological intolerance of higher temperatures. The prolonged drought that followed the heatwaves maintained low levels of production by S. plana and H. ulvae. With climate change, the frequency and intensity of extreme weather events are likely to increase worldwide so that the recovery of impacted/disturbed systems from impacts such as eutrophication may be seriously affected by these additional stressors, compromising attempts to improve the ecological quality of estuarine ecosystems.Elsevier2011-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/21132http://hdl.handle.net/10316/21132https://doi.org/10.1016/j.ecss.2010.12.006engDOLBETH, M. [et al.] - Long-term changes in the production by estuarine macrobenthos affected by multiple stressors. "Estuarine, Coastal and Shelf Science". ISSN 0272-7714. 92:1 (2011) 10-180272-7714Dolbeth, M.Cardoso, P. G.Grilo, T. F.Bordalo, M. D.Raffaelli, D.Pardal, M. A.info: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:RCAAP2020-05-29T09:42:14Zoai:estudogeral.uc.pt:10316/21132Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:52:16.770137Repositório 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 |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
title |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
spellingShingle |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors Dolbeth, M. Macrobenthos production Estuary Eutrophication Climate extremes, Recovery |
title_short |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
title_full |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
title_fullStr |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
title_full_unstemmed |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
title_sort |
Long-term changes in the production by estuarine macrobenthos affected by multiple stressors |
author |
Dolbeth, M. |
author_facet |
Dolbeth, M. Cardoso, P. G. Grilo, T. F. Bordalo, M. D. Raffaelli, D. Pardal, M. A. |
author_role |
author |
author2 |
Cardoso, P. G. Grilo, T. F. Bordalo, M. D. Raffaelli, D. Pardal, M. A. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dolbeth, M. Cardoso, P. G. Grilo, T. F. Bordalo, M. D. Raffaelli, D. Pardal, M. A. |
dc.subject.por.fl_str_mv |
Macrobenthos production Estuary Eutrophication Climate extremes, Recovery |
topic |
Macrobenthos production Estuary Eutrophication Climate extremes, Recovery |
description |
The macrobenthic production of an estuarine system was evaluated over a 14-year study period in a seagrass bed and in a sandflat. Over this period, the estuary suffered severe eutrophication and extreme weather events with important impacts on the community, impairing system functioning and ultimately the goods and services provided by the estuary (decline in the seagrass bed, decreased community production and/or a boost in the production by opportunist species, such as Hydrobia ulvae). Following the anthropogenic impacts, management measures were introduced which allowed a gradual recovery of the seagrass bed and a new macrobenthic community structure manifested by production increases of slow-growing species, such as Scrobicularia plana and Hediste diversicolor. There was a gradual re-orientation of energy into population biomass instead of population density but this was not translated into higher community production, mainly due to the decreased production of opportunist species (H. ulvae and several polychaetes). Several weather extreme events occurred during this post-mitigation phase - floods, heatwaves and droughts, all of which had negative impacts on macrobenthic dynamics and production. The heatwaves led to the greatest decreases in macrobenthic production, mainly due to S. plana perhaps associated with its physiological intolerance of higher temperatures. The prolonged drought that followed the heatwaves maintained low levels of production by S. plana and H. ulvae. With climate change, the frequency and intensity of extreme weather events are likely to increase worldwide so that the recovery of impacted/disturbed systems from impacts such as eutrophication may be seriously affected by these additional stressors, compromising attempts to improve the ecological quality of estuarine ecosystems. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03 |
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/10316/21132 http://hdl.handle.net/10316/21132 https://doi.org/10.1016/j.ecss.2010.12.006 |
url |
http://hdl.handle.net/10316/21132 https://doi.org/10.1016/j.ecss.2010.12.006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
DOLBETH, M. [et al.] - Long-term changes in the production by estuarine macrobenthos affected by multiple stressors. "Estuarine, Coastal and Shelf Science". ISSN 0272-7714. 92:1 (2011) 10-18 0272-7714 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
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