Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/10400.1/11638 |
Resumo: | Salt marsh areas in the Guadiana estuary are important nursery sites for many fish species of commercial and recreational value. More effective protection measures should be adopted as the area is highly affected by anthropogenic and natural threats. Studying larval fish communities in these impacted nursery areas will be relevant to the management of local ecosystems and to larval fish ecology in general. Spatial and seasonal distribution and the effect of environmental factors on the larval fish community of this ecosystem were studied for one year (April 2010 to March 2011). Larvae were sampled monthly in parallel with phytoplankton and zooplankton. Hydrological data and physical parameters were monitored. A decision tree model was used to assess the influence of environmental factors on the larval fish community. A total of 130 larvae and 1171 eggs were caught. Diplodus sargus, Sardina pilchardus, and Pomatoschistus microps were the most abundant larval fish species. The peaks of fish larvae abundance occurred in March and April. The output of the model demonstrates that the abundance of larval fish is determined by the abundance of eggs, zooplanktonic food, and water flood and flow. This study shows the importance of the Guadiana salt marsh as an area for fish nursery and highlights the need for conservation of this area. |
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Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal)Sardine Sardina-PilchardusNutritional ConditionTemporal VariabilityAfrican EstuariesSouthern PortugalFresh-WaterAssemblagesAbundanceNektonResidentSalt marsh areas in the Guadiana estuary are important nursery sites for many fish species of commercial and recreational value. More effective protection measures should be adopted as the area is highly affected by anthropogenic and natural threats. Studying larval fish communities in these impacted nursery areas will be relevant to the management of local ecosystems and to larval fish ecology in general. Spatial and seasonal distribution and the effect of environmental factors on the larval fish community of this ecosystem were studied for one year (April 2010 to March 2011). Larvae were sampled monthly in parallel with phytoplankton and zooplankton. Hydrological data and physical parameters were monitored. A decision tree model was used to assess the influence of environmental factors on the larval fish community. A total of 130 larvae and 1171 eggs were caught. Diplodus sargus, Sardina pilchardus, and Pomatoschistus microps were the most abundant larval fish species. The peaks of fish larvae abundance occurred in March and April. The output of the model demonstrates that the abundance of larval fish is determined by the abundance of eggs, zooplanktonic food, and water flood and flow. This study shows the importance of the Guadiana salt marsh as an area for fish nursery and highlights the need for conservation of this area.FCT (Portuguese Foundation for Science and Technology) [SFRH/BD/47985/2008]Inst Ciencias Mar BarcelonaSapientiaGonçalves, RenataCorreia, Ana DulceAtanasova, NatasaTeodosio, MariaBen-Hamadou, RadhouanChicharo, Luis2018-12-07T14:53:41Z2015-032015-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11638eng0214-835810.3989/scimar.04081.08Ainfo: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:RCAAP2023-07-24T10:23:29Zoai:sapientia.ualg.pt:10400.1/11638Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:07.093776Repositório 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 |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
title |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
spellingShingle |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) Gonçalves, Renata Sardine Sardina-Pilchardus Nutritional Condition Temporal Variability African Estuaries Southern Portugal Fresh-Water Assemblages Abundance Nekton Resident |
title_short |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
title_full |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
title_fullStr |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
title_full_unstemmed |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
title_sort |
Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal) |
author |
Gonçalves, Renata |
author_facet |
Gonçalves, Renata Correia, Ana Dulce Atanasova, Natasa Teodosio, Maria Ben-Hamadou, Radhouan Chicharo, Luis |
author_role |
author |
author2 |
Correia, Ana Dulce Atanasova, Natasa Teodosio, Maria Ben-Hamadou, Radhouan Chicharo, Luis |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Gonçalves, Renata Correia, Ana Dulce Atanasova, Natasa Teodosio, Maria Ben-Hamadou, Radhouan Chicharo, Luis |
dc.subject.por.fl_str_mv |
Sardine Sardina-Pilchardus Nutritional Condition Temporal Variability African Estuaries Southern Portugal Fresh-Water Assemblages Abundance Nekton Resident |
topic |
Sardine Sardina-Pilchardus Nutritional Condition Temporal Variability African Estuaries Southern Portugal Fresh-Water Assemblages Abundance Nekton Resident |
description |
Salt marsh areas in the Guadiana estuary are important nursery sites for many fish species of commercial and recreational value. More effective protection measures should be adopted as the area is highly affected by anthropogenic and natural threats. Studying larval fish communities in these impacted nursery areas will be relevant to the management of local ecosystems and to larval fish ecology in general. Spatial and seasonal distribution and the effect of environmental factors on the larval fish community of this ecosystem were studied for one year (April 2010 to March 2011). Larvae were sampled monthly in parallel with phytoplankton and zooplankton. Hydrological data and physical parameters were monitored. A decision tree model was used to assess the influence of environmental factors on the larval fish community. A total of 130 larvae and 1171 eggs were caught. Diplodus sargus, Sardina pilchardus, and Pomatoschistus microps were the most abundant larval fish species. The peaks of fish larvae abundance occurred in March and April. The output of the model demonstrates that the abundance of larval fish is determined by the abundance of eggs, zooplanktonic food, and water flood and flow. This study shows the importance of the Guadiana salt marsh as an area for fish nursery and highlights the need for conservation of this area. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03 2015-03-01T00:00:00Z 2018-12-07T14:53:41Z |
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/10400.1/11638 |
url |
http://hdl.handle.net/10400.1/11638 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0214-8358 10.3989/scimar.04081.08A |
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 |
Inst Ciencias Mar Barcelona |
publisher.none.fl_str_mv |
Inst Ciencias Mar Barcelona |
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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1799133265305534464 |