Larval fish dispersal along an estuarine-ocean gradient
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/120506 |
Resumo: | The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries. © 2017, Canadian Science Publishing. All rights reserved. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Larval fish dispersal along an estuarine-ocean gradientabundancecanonical analysischlorophyll aconcentration (composition)connectivitydispersalenvironmental gradientestuarine environmentflatfishlarval transportIberian PeninsulaLimia EstuaryPortugalViana do Castelo [Portugal]Platichthys flesusPleuronectoideiThe present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries. © 2017, Canadian Science Publishing. All rights reserved.NRC Research Press (Canadian Science Publishing)20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/120506eng0706652, 1205753310.1139/cjfas-2016-0325Ramos S.Paris C.B.Angélico M.M.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:RCAAP2023-11-29T12:54:53Zoai:repositorio-aberto.up.pt:10216/120506Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:29:22.689614Repositório 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 |
Larval fish dispersal along an estuarine-ocean gradient |
title |
Larval fish dispersal along an estuarine-ocean gradient |
spellingShingle |
Larval fish dispersal along an estuarine-ocean gradient Ramos S. abundance canonical analysis chlorophyll a concentration (composition) connectivity dispersal environmental gradient estuarine environment flatfish larval transport Iberian Peninsula Limia Estuary Portugal Viana do Castelo [Portugal] Platichthys flesus Pleuronectoidei |
title_short |
Larval fish dispersal along an estuarine-ocean gradient |
title_full |
Larval fish dispersal along an estuarine-ocean gradient |
title_fullStr |
Larval fish dispersal along an estuarine-ocean gradient |
title_full_unstemmed |
Larval fish dispersal along an estuarine-ocean gradient |
title_sort |
Larval fish dispersal along an estuarine-ocean gradient |
author |
Ramos S. |
author_facet |
Ramos S. Paris C.B. Angélico M.M. |
author_role |
author |
author2 |
Paris C.B. Angélico M.M. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ramos S. Paris C.B. Angélico M.M. |
dc.subject.por.fl_str_mv |
abundance canonical analysis chlorophyll a concentration (composition) connectivity dispersal environmental gradient estuarine environment flatfish larval transport Iberian Peninsula Limia Estuary Portugal Viana do Castelo [Portugal] Platichthys flesus Pleuronectoidei |
topic |
abundance canonical analysis chlorophyll a concentration (composition) connectivity dispersal environmental gradient estuarine environment flatfish larval transport Iberian Peninsula Limia Estuary Portugal Viana do Castelo [Portugal] Platichthys flesus Pleuronectoidei |
description |
The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries. © 2017, Canadian Science Publishing. All rights reserved. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z |
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 |
https://hdl.handle.net/10216/120506 |
url |
https://hdl.handle.net/10216/120506 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0706652, 12057533 10.1139/cjfas-2016-0325 |
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 |
NRC Research Press (Canadian Science Publishing) |
publisher.none.fl_str_mv |
NRC Research Press (Canadian Science Publishing) |
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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1799135601672323073 |