Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure

[EN] Three deep-sea areas in the Mediterranean Sea were sampled using a bottom otter trawl during the DESEAS oceanographic survey carried out from early June to early July 2001, covering an area in the western Mediterranean from 600 to 2800 m in depth and two areas in the central Mediterranean, the...

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Authors: Company, Joan B., Maiorano, Porzia, Tselepides, Anastasios, Plaity, Wanda, Politou, Chrissi-Yianna, Sardà, Francisco, Rotllant, Guiomar
Format: article
Publication Date:2004
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/2364
Online Access:http://hdl.handle.net/10261/2364
Access Level:Open access
Keyword:Deep-sea
Mediterranean
Decapod crustaceans
Species distribution
Population structure
Mar profundo
Distribución de especies
Estructura de la población
Mediterráneo
Crustáceos decápodos
id ES_1a8d583c78600a6372c35d263cd8a6ca
oai_identifier_str oai:digital.csic.es:10261/2364
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
Crustáceos decápodos de profundidad del Mediterráneo occidental y central: aspectos preliminares sobre la distribución de especies, la biomasa y la estructura de población
title Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
spellingShingle Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
Company, Joan B.
Deep-sea
Mediterranean
Decapod crustaceans
Species distribution
Population structure
Mar profundo
Distribución de especies
Estructura de la población
Mediterráneo
Crustáceos decápodos
title_short Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
title_full Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
title_fullStr Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
title_full_unstemmed Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
title_sort Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structure
dc.creator.none.fl_str_mv Company, Joan B.
Maiorano, Porzia
Tselepides, Anastasios
Plaity, Wanda
Politou, Chrissi-Yianna
Sardà, Francisco
Rotllant, Guiomar
author Company, Joan B.
author_facet Company, Joan B.
Maiorano, Porzia
Tselepides, Anastasios
Plaity, Wanda
Politou, Chrissi-Yianna
Sardà, Francisco
Rotllant, Guiomar
author_role author
author2 Maiorano, Porzia
Tselepides, Anastasios
Plaity, Wanda
Politou, Chrissi-Yianna
Sardà, Francisco
Rotllant, Guiomar
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Deep-sea
Mediterranean
Decapod crustaceans
Species distribution
Population structure
Mar profundo
Distribución de especies
Estructura de la población
Mediterráneo
Crustáceos decápodos
topic Deep-sea
Mediterranean
Decapod crustaceans
Species distribution
Population structure
Mar profundo
Distribución de especies
Estructura de la población
Mediterráneo
Crustáceos decápodos
description [EN] Three deep-sea areas in the Mediterranean Sea were sampled using a bottom otter trawl during the DESEAS oceanographic survey carried out from early June to early July 2001, covering an area in the western Mediterranean from 600 to 2800 m in depth and two areas in the central Mediterranean, the western and eastern Ionian Sea from 600 to 4000 m in depth. Decapod crustaceans were one of the dominant megafaunal groups, together with fishes, in terms of both biomass and abundance. A total of 2799 decapod specimens belonging to 32 species were collected. Abundance and biomass of the decapod crustaceans decreased with depth. For depths below 1000 m, a decrease in total decapod biomass was recorded from west to east. From the data reported in this study and data from the available literature, decapod crustaceans display differential depth distributions in the different areas. For the most abundant species, size and sex distributions versus depth gradient were examined to compare intraspecific population structures between the sampling areas. Despite differences, among areas, in the species biomass compositions by depth strata and differences in their overall bathymetric ranges of distribution, intraspecific population structures of the most abundant species seem to follow similar trends for size and sex distribution versus depth gradient between the western and central areas. This might be an indication that the individual species structure their populations according to a similar basic pattern regardless of differences in local environmental features. The results have been discussed in the general context of the environmental features encountered by the species in each of the sampling areas
publishDate 2004
dc.date.none.fl_str_mv 2004
2007
2007
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/10261/2364
url http://hdl.handle.net/10261/2364
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3989/scimar.2004.68s373
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
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_ 1869404113097195520
spelling Deep-sea decapod crustaceans in the western and central Mediterranean Sea: preliminary aspects of species distribution, biomass and population structureCrustáceos decápodos de profundidad del Mediterráneo occidental y central: aspectos preliminares sobre la distribución de especies, la biomasa y la estructura de poblaciónCompany, Joan B.Maiorano, PorziaTselepides, AnastasiosPlaity, WandaPolitou, Chrissi-YiannaSardà, FranciscoRotllant, GuiomarDeep-seaMediterraneanDecapod crustaceansSpecies distributionPopulation structureMar profundoDistribución de especiesEstructura de la poblaciónMediterráneoCrustáceos decápodos[EN] Three deep-sea areas in the Mediterranean Sea were sampled using a bottom otter trawl during the DESEAS oceanographic survey carried out from early June to early July 2001, covering an area in the western Mediterranean from 600 to 2800 m in depth and two areas in the central Mediterranean, the western and eastern Ionian Sea from 600 to 4000 m in depth. Decapod crustaceans were one of the dominant megafaunal groups, together with fishes, in terms of both biomass and abundance. A total of 2799 decapod specimens belonging to 32 species were collected. Abundance and biomass of the decapod crustaceans decreased with depth. For depths below 1000 m, a decrease in total decapod biomass was recorded from west to east. From the data reported in this study and data from the available literature, decapod crustaceans display differential depth distributions in the different areas. For the most abundant species, size and sex distributions versus depth gradient were examined to compare intraspecific population structures between the sampling areas. Despite differences, among areas, in the species biomass compositions by depth strata and differences in their overall bathymetric ranges of distribution, intraspecific population structures of the most abundant species seem to follow similar trends for size and sex distribution versus depth gradient between the western and central areas. This might be an indication that the individual species structure their populations according to a similar basic pattern regardless of differences in local environmental features. The results have been discussed in the general context of the environmental features encountered by the species in each of the sampling areas[ES] Se muestrearon tres áreas del mediterráneo profundo con una red de arrastre bentónica durante la campaña oceanográfica DESEAS, desde principios de junio hasta principios de julio de 2001. El rango batimétrico muestreado en el Mediterráneo occidental fue entre los 600 y los 2800 m de profundidad. El rango batimétrico muestreado en el Mediterráneo occidental fue entre los 600 y los 2800 m de profundidad. Se muestrearon dos áreas del Mediterráneo central, una situada en la parte occidental del Mar Iónico y la otra situada en la parte más oriental del mismo, cubriendo un rango batimétrico entre los 600 y 4000 m de pro- fundidad. Los crustáceos decápodos fueron uno de los grupos, junto con los peces, dominantes de la megafauna en términos de biomasa y abundancia. Se capturaron un total de 2799 individuos de decápodos pertenecientes a 32 especies. La abundancia y biomasa de los crustáceos decápodos disminuyó con la profundidad. Teniendo en cuenta únicamente las muestras tomadas a profundidades superiores a los 1000 m, se detectó una disminución de la biomasa total de los crustáceos decápodos en el área de muestreo más oriental (parte oriental del Mar Iónico) con respecto al Mediterráneo occidental (Mar Balear). Los datos aportados en este estudio junto con los datos disponibles en la literatura, indican que los crustáceos decápodos se distribuyen en rangos batimétricos diferentes en cada una de las áreas de estudio. Aunque se encontraron diferencias entre las áreas de estudio, en la distribución de biomasa con respecto a la profundidad y en los rangos batimétricos de cada especie, la estructura de población de las especies más abundantes parece seguir la misma tendencia por lo respecta la distribución batimétrica de sexos y tamaño de sus individuos en toda el área geográfica muestreada. Este último aspecto podría ser una indicación de que las especies estructuran sus poblaciones de acuerdo a un patrón similar, independientemente de las diferencias locales del ambiente. Los resultados se han discutido bajo el contexto general de las características ambientales encontradas por cada especie en cada una de las áreas de muestreoPeer reviewedConsejo Superior de Investigaciones Científicas (España)200720072004info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/2364reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3989/scimar.2004.68s373info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/23642026-05-22T06:33:51Z
score 15,812455

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