Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/10450 |
Resumo: | The characteristic high variability and low predictability of coastal lagoons, due to strong changes in marine and freshwater inputs, make these ecosystems an interesting casestudy. The small Melides landlocked coastal lagoon in SW Portugal is a paradigmatic example, with a biological community highly stressed by these phenomena. Benthic macroinvertebrate samples were collected in 1998/99 and 2009 and each year, in different seasons and addressing different environmental conditions influenced by the connection to the sea and rainfall regime. Major spatial and temporal patterns in benthic communities were investigated using some invertebrate attributes (e.g. community composition, density, species richness and diversity). A very low taxonomic species richness and diversity was found in the Melides lagoon and only a much reduced number of species occurred along all sampling periods and in both sampling campaigns. Although the colonization events play a crucial role, the persistence of the observed species was mainly associated to abiotic factors, such as salinity, temperature and dissolved oxygen. Despite the potential reduction in anthropogenic pressure, by the construction of a sewage treatment plant and a reduction of urban occupation, the ecological status did not improve and the high level of natural environmental variably in the lagoon seems to be the dominant stressor influencing benthic invertebrate communities |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessmentMacroinvertebratesSpatial-temporal variationsBiotic indicesLand-locked lagoonTransitional watersMelidesThe characteristic high variability and low predictability of coastal lagoons, due to strong changes in marine and freshwater inputs, make these ecosystems an interesting casestudy. The small Melides landlocked coastal lagoon in SW Portugal is a paradigmatic example, with a biological community highly stressed by these phenomena. Benthic macroinvertebrate samples were collected in 1998/99 and 2009 and each year, in different seasons and addressing different environmental conditions influenced by the connection to the sea and rainfall regime. Major spatial and temporal patterns in benthic communities were investigated using some invertebrate attributes (e.g. community composition, density, species richness and diversity). A very low taxonomic species richness and diversity was found in the Melides lagoon and only a much reduced number of species occurred along all sampling periods and in both sampling campaigns. Although the colonization events play a crucial role, the persistence of the observed species was mainly associated to abiotic factors, such as salinity, temperature and dissolved oxygen. Despite the potential reduction in anthropogenic pressure, by the construction of a sewage treatment plant and a reduction of urban occupation, the ecological status did not improve and the high level of natural environmental variably in the lagoon seems to be the dominant stressor influencing benthic invertebrate communitiesVie et Milieu Observatoire Océanologique - Laboratoire Arago - Université Pierre et Marie Curie 66650 Banyuls-sur-Mer - France Fax: (33) (0)4 68 88 16 99 Email: vimilieu@obs-banyuls.fr2014-01-30T18:15:43Z2014-01-302013-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/10450http://hdl.handle.net/10174/10450porP. M. FÉLIX, P. CHAINHO, J. L. COSTA, M. J. CORREIA, M. L. CHAVES, J. P. MEDEIROS, H. N. CABRAL, N. WOUTERS, J. BERNARDO, A. M. COSTA, M. CRISTO, G. SILVA, C. AZEDA, P. TAVARES, M. J. COSTA, L. CANCELA DA FONSECA. (2013).Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment. Vie Milieu,63(1):11-22pmfelix@fc.ul.ptndndndndndndndjmb@uevora.ptamac@uevora.ptndndndndndnd597Félix, PMChainho, PCosta, JlCorreia, MJChaves, MLMedeiros, JPCabral, HNWouters, NBernardo, JCosta, AMCristo, MSilva, GAzeda, CTavares, PCosta, MJCancela Da Fonseca, Linfo: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:RCAAP2024-01-03T18:53:18Zoai:dspace.uevora.pt:10174/10450Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:04:19.325036Repositório 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 |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
title |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
spellingShingle |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment Félix, PM Macroinvertebrates Spatial-temporal variations Biotic indices Land-locked lagoon Transitional waters Melides |
title_short |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
title_full |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
title_fullStr |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
title_full_unstemmed |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
title_sort |
Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment |
author |
Félix, PM |
author_facet |
Félix, PM Chainho, P Costa, Jl Correia, MJ Chaves, ML Medeiros, JP Cabral, HN Wouters, N Bernardo, J Costa, AM Cristo, M Silva, G Azeda, C Tavares, P Costa, MJ Cancela Da Fonseca, L |
author_role |
author |
author2 |
Chainho, P Costa, Jl Correia, MJ Chaves, ML Medeiros, JP Cabral, HN Wouters, N Bernardo, J Costa, AM Cristo, M Silva, G Azeda, C Tavares, P Costa, MJ Cancela Da Fonseca, L |
author2_role |
author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Félix, PM Chainho, P Costa, Jl Correia, MJ Chaves, ML Medeiros, JP Cabral, HN Wouters, N Bernardo, J Costa, AM Cristo, M Silva, G Azeda, C Tavares, P Costa, MJ Cancela Da Fonseca, L |
dc.subject.por.fl_str_mv |
Macroinvertebrates Spatial-temporal variations Biotic indices Land-locked lagoon Transitional waters Melides |
topic |
Macroinvertebrates Spatial-temporal variations Biotic indices Land-locked lagoon Transitional waters Melides |
description |
The characteristic high variability and low predictability of coastal lagoons, due to strong changes in marine and freshwater inputs, make these ecosystems an interesting casestudy. The small Melides landlocked coastal lagoon in SW Portugal is a paradigmatic example, with a biological community highly stressed by these phenomena. Benthic macroinvertebrate samples were collected in 1998/99 and 2009 and each year, in different seasons and addressing different environmental conditions influenced by the connection to the sea and rainfall regime. Major spatial and temporal patterns in benthic communities were investigated using some invertebrate attributes (e.g. community composition, density, species richness and diversity). A very low taxonomic species richness and diversity was found in the Melides lagoon and only a much reduced number of species occurred along all sampling periods and in both sampling campaigns. Although the colonization events play a crucial role, the persistence of the observed species was mainly associated to abiotic factors, such as salinity, temperature and dissolved oxygen. Despite the potential reduction in anthropogenic pressure, by the construction of a sewage treatment plant and a reduction of urban occupation, the ecological status did not improve and the high level of natural environmental variably in the lagoon seems to be the dominant stressor influencing benthic invertebrate communities |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-11-01T00:00:00Z 2014-01-30T18:15:43Z 2014-01-30 |
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/10174/10450 http://hdl.handle.net/10174/10450 |
url |
http://hdl.handle.net/10174/10450 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
P. M. FÉLIX, P. CHAINHO, J. L. COSTA, M. J. CORREIA, M. L. CHAVES, J. P. MEDEIROS, H. N. CABRAL, N. WOUTERS, J. BERNARDO, A. M. COSTA, M. CRISTO, G. SILVA, C. AZEDA, P. TAVARES, M. J. COSTA, L. CANCELA DA FONSECA. (2013).Short-term versus long-term changes in the benthic communities of a small coastal lagoon: implications for ecological status assessment. Vie Milieu,63(1):11-22 pmfelix@fc.ul.pt nd nd nd nd nd nd nd jmb@uevora.pt amac@uevora.pt nd nd nd nd nd nd 597 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Vie et Milieu Observatoire Océanologique - Laboratoire Arago - Université Pierre et Marie Curie 66650 Banyuls-sur-Mer - France Fax: (33) (0)4 68 88 16 99 Email: vimilieu@obs-banyuls.fr |
publisher.none.fl_str_mv |
Vie et Milieu Observatoire Océanologique - Laboratoire Arago - Université Pierre et Marie Curie 66650 Banyuls-sur-Mer - France Fax: (33) (0)4 68 88 16 99 Email: vimilieu@obs-banyuls.fr |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1799136527214706688 |