Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.

Populations of small pelagic fish support important fisheries in Spanish Mediterranean waters, particularly sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus), and are distributed along the entire length of the Spanish continental shelf. Using annual acoustic survey data for the years...

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Detalles Bibliográficos
Autores: Bellido, José M., Brown, A.M., Valavanis, V.D., Giráldez, Ana, Pierce, Graham J., Iglesias, Magdalena, Palialexis, A.
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/326340
Acceso en línea:http://hdl.handle.net/10261/326340
Access Level:acceso abierto
Palabra clave:Pesquerías
Centro Oceanográfico de Murcia
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repository_id_str
spelling Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.Bellido, José M.Brown, A.M.Valavanis, V.D.Giráldez, AnaPierce, Graham J.Iglesias, MagdalenaPalialexis, A.PesqueríasCentro Oceanográfico de MurciaPopulations of small pelagic fish support important fisheries in Spanish Mediterranean waters, particularly sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus), and are distributed along the entire length of the Spanish continental shelf. Using annual acoustic survey data for the years 2003–2005, a GIS-based environmental modelling approach was used to investigate the distribution and abundance of small pelagic fish in relation to environmental variables. Multivariate analysis was applied to provide a preliminary picture of relationships between fish and environmental conditions, followed by application of Generalised Additive Models (GAMs). GAMs showed the presence/absence of fish to be related to bathymetry, sea surface chlorophyll-a concentration and sea surface temperature (SST). The strength and significance of these relationships varied spatially and temporally. High resolution Essential Fish Habitat (EFH) maps were generated for sardine and anchovy, based on the predicted probability of presence of each species. Substantial inter-annual variability in the distribution and quality of EFH was observed, particularly for anchovy. Identification of EFH is of great importance to assess and manage sardine and anchovy resources as it provides a natural link between population dynamics features and geographical scenarios.Sí202320232008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/326340reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Murciainfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3263402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
title Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
spellingShingle Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
Bellido, José M.
Pesquerías
Centro Oceanográfico de Murcia
title_short Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
title_full Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
title_fullStr Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
title_full_unstemmed Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
title_sort Identifying Essential Fish Habitat for small pelagic species in Spanish Mediterranean waters.
dc.creator.none.fl_str_mv Bellido, José M.
Brown, A.M.
Valavanis, V.D.
Giráldez, Ana
Pierce, Graham J.
Iglesias, Magdalena
Palialexis, A.
author Bellido, José M.
author_facet Bellido, José M.
Brown, A.M.
Valavanis, V.D.
Giráldez, Ana
Pierce, Graham J.
Iglesias, Magdalena
Palialexis, A.
author_role author
author2 Brown, A.M.
Valavanis, V.D.
Giráldez, Ana
Pierce, Graham J.
Iglesias, Magdalena
Palialexis, A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Pesquerías
Centro Oceanográfico de Murcia
topic Pesquerías
Centro Oceanográfico de Murcia
description Populations of small pelagic fish support important fisheries in Spanish Mediterranean waters, particularly sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus), and are distributed along the entire length of the Spanish continental shelf. Using annual acoustic survey data for the years 2003–2005, a GIS-based environmental modelling approach was used to investigate the distribution and abundance of small pelagic fish in relation to environmental variables. Multivariate analysis was applied to provide a preliminary picture of relationships between fish and environmental conditions, followed by application of Generalised Additive Models (GAMs). GAMs showed the presence/absence of fish to be related to bathymetry, sea surface chlorophyll-a concentration and sea surface temperature (SST). The strength and significance of these relationships varied spatially and temporally. High resolution Essential Fish Habitat (EFH) maps were generated for sardine and anchovy, based on the predicted probability of presence of each species. Substantial inter-annual variability in the distribution and quality of EFH was observed, particularly for anchovy. Identification of EFH is of great importance to assess and manage sardine and anchovy resources as it provides a natural link between population dynamics features and geographical scenarios.
publishDate 2008
dc.date.none.fl_str_mv 2008
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/326340
url http://hdl.handle.net/10261/326340
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Murcia
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405142083698688
score 15,811543

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