Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap

The aim of this study is to test the variability of the assemblages defined in the Flemish Cap area. Data from 951 bottom hauls were analysed, covering depths between 126 and 740 m in the years 1995–2002. The fish fauna in Flemish Cap appears distributed in a persistent structural zonation defined i...

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Authors: González-Troncoso, Diana, Paz, Xabier, Cardoso, Xosé Antón
Format: article
Publication Date:2006
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/327458
Online Access:http://hdl.handle.net/10261/327458
Access Level:Open access
Keyword:Centro Oceanográfico de Vigo
Pesquerías
demersal
dominance
Ecosystem
Gadus morhua
Hippoglossoides platessoides
northwest Atlantic
Sebastes
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network_acronym_str ES
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repository_id_str
spelling Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish CapGonzález-Troncoso, DianaPaz, XabierCardoso, Xosé AntónCentro Oceanográfico de VigoPesqueríasdemersaldominanceEcosystemGadus morhuaHippoglossoides platessoidesnorthwest AtlanticSebastesThe aim of this study is to test the variability of the assemblages defined in the Flemish Cap area. Data from 951 bottom hauls were analysed, covering depths between 126 and 740 m in the years 1995–2002. The fish fauna in Flemish Cap appears distributed in a persistent structural zonation defined in three assemblages. The first three factors of a Principal Component Analysis explained the 78.4% of the variance in distribution species, and they are consistent with the results of a cluster analysis. The three characteristic assemblages show a temporal persistence, but some changes appear in this period, for instance: displacements of the assemblages limits towards shallower waters, and some changes in relative position of the dominant species in each assemblage. These changes can be related with the constant decrease of the biomass of the main demersal fish species like Atlantic cod and American plaice. The species of Genus Sebastes appear as dominant fish species in the area.202320232006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/327458reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Vigoinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3274582026-05-22T06:33:51Z
dc.title.none.fl_str_mv Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
title Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
spellingShingle Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
González-Troncoso, Diana
Centro Oceanográfico de Vigo
Pesquerías
demersal
dominance
Ecosystem
Gadus morhua
Hippoglossoides platessoides
northwest Atlantic
Sebastes
title_short Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
title_full Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
title_fullStr Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
title_full_unstemmed Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
title_sort Persistence and Variation in the Distribution of Bottom-trawl Fish Assemblages over the Flemish Cap
dc.creator.none.fl_str_mv González-Troncoso, Diana
Paz, Xabier
Cardoso, Xosé Antón
author González-Troncoso, Diana
author_facet González-Troncoso, Diana
Paz, Xabier
Cardoso, Xosé Antón
author_role author
author2 Paz, Xabier
Cardoso, Xosé Antón
author2_role author
author
dc.subject.none.fl_str_mv Centro Oceanográfico de Vigo
Pesquerías
demersal
dominance
Ecosystem
Gadus morhua
Hippoglossoides platessoides
northwest Atlantic
Sebastes
topic Centro Oceanográfico de Vigo
Pesquerías
demersal
dominance
Ecosystem
Gadus morhua
Hippoglossoides platessoides
northwest Atlantic
Sebastes
description The aim of this study is to test the variability of the assemblages defined in the Flemish Cap area. Data from 951 bottom hauls were analysed, covering depths between 126 and 740 m in the years 1995–2002. The fish fauna in Flemish Cap appears distributed in a persistent structural zonation defined in three assemblages. The first three factors of a Principal Component Analysis explained the 78.4% of the variance in distribution species, and they are consistent with the results of a cluster analysis. The three characteristic assemblages show a temporal persistence, but some changes appear in this period, for instance: displacements of the assemblages limits towards shallower waters, and some changes in relative position of the dominant species in each assemblage. These changes can be related with the constant decrease of the biomass of the main demersal fish species like Atlantic cod and American plaice. The species of Genus Sebastes appear as dominant fish species in the area.
publishDate 2006
dc.date.none.fl_str_mv 2006
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/10261/327458
url http://hdl.handle.net/10261/327458
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Vigo
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_ 1869420179776077824
score 15,811543

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