Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts
The main characteristics concerning distribution, size structure and total mortality of two of the most important decapod crustaceans of commercial interest in the Mediterranean Sea, Nephrops norvegicus and Parapenaeus longirostris, are studied along the European Mediterranean coasts. The study is based on data collected during a series of six trawl surveys performed in spring from 1994 to 1999 from the Gibraltar Straits to the Aegean Sea. The population size structure identified in the different geographical sectors is analysed taking into account two bathymetric sectors: continental shelf and upper slope. Differences in N. norvegicus population demographic structure among geographical sectors, as well as in total mortality, appear to be highly related to different exploitation levels. Size structure in P. longirostris also shows a great heterogeneity throughout the different geographical sectors. Considering that both species are heavily exploited all along the studied area, the observed differences can be interpreted as different responses to exploitation related to the widely differing life history characteristics of the mentioned species. In fact, N. norvegicus is a long-lived, benthic, burrowing species with low growth and mortality rates, and P. longirostris an epibenthic short-lived species characterised by higher rates of growth and mortality
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Format: | artículo biblioteca |
Language: | English |
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CSIC - Instituto de Ciencias del Mar (ICM)
2002-07
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Subjects: | Nephrops norvegicus, Parapenaeus longirostris, Distribution, Population structure, Mediterranean Sea, |
Online Access: | http://hdl.handle.net/10261/5444 |
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dig-icm-es-10261-54442020-11-10T08:35:59Z Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts Abelló, Pere Abella, Álvaro Adamidou, Angeliki Jukic-Peladic, Stjepan Maiorano, Porzia Spedicato, Maria Teresa Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea The main characteristics concerning distribution, size structure and total mortality of two of the most important decapod crustaceans of commercial interest in the Mediterranean Sea, Nephrops norvegicus and Parapenaeus longirostris, are studied along the European Mediterranean coasts. The study is based on data collected during a series of six trawl surveys performed in spring from 1994 to 1999 from the Gibraltar Straits to the Aegean Sea. The population size structure identified in the different geographical sectors is analysed taking into account two bathymetric sectors: continental shelf and upper slope. Differences in N. norvegicus population demographic structure among geographical sectors, as well as in total mortality, appear to be highly related to different exploitation levels. Size structure in P. longirostris also shows a great heterogeneity throughout the different geographical sectors. Considering that both species are heavily exploited all along the studied area, the observed differences can be interpreted as different responses to exploitation related to the widely differing life history characteristics of the mentioned species. In fact, N. norvegicus is a long-lived, benthic, burrowing species with low growth and mortality rates, and P. longirostris an epibenthic short-lived species characterised by higher rates of growth and mortality Peer reviewed 2008-06-30T09:23:02Z 2008-06-30T09:23:02Z 2002-07 artículo http://purl.org/coar/resource_type/c_6501 Scientia Marina 66(Suppl.2): 125-141 (2002) 0214-8358 http://hdl.handle.net/10261/5444 10.3989/scimar.2002.66s2125 1886-8134 en https://doi.org/10.3989/scimar.2002.66s2125 open 686482 bytes application/pdf CSIC - Instituto de Ciencias del Mar (ICM) |
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Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea |
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Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea Abelló, Pere Abella, Álvaro Adamidou, Angeliki Jukic-Peladic, Stjepan Maiorano, Porzia Spedicato, Maria Teresa Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
description |
The main characteristics concerning distribution, size structure and total mortality of two of the most important decapod crustaceans of commercial interest in the Mediterranean Sea, Nephrops norvegicus and Parapenaeus longirostris, are studied along the European Mediterranean coasts. The study is based on data collected during a series of six trawl surveys performed in spring from 1994 to 1999 from the Gibraltar Straits to the Aegean Sea. The population size structure identified in the different geographical sectors is analysed taking into account two bathymetric sectors: continental shelf and upper slope. Differences in N. norvegicus population demographic structure among geographical sectors, as well as in total mortality, appear to be highly related to different exploitation levels. Size structure in P. longirostris also shows a great heterogeneity throughout the different geographical sectors. Considering that both species are heavily exploited all along the studied area, the observed differences can be interpreted as different responses to exploitation related to the widely differing life history characteristics of the mentioned species. In fact, N. norvegicus is a long-lived, benthic, burrowing species with low growth and mortality rates, and P. longirostris an epibenthic short-lived species characterised by higher rates of growth and mortality |
format |
artículo |
topic_facet |
Nephrops norvegicus Parapenaeus longirostris Distribution Population structure Mediterranean Sea |
author |
Abelló, Pere Abella, Álvaro Adamidou, Angeliki Jukic-Peladic, Stjepan Maiorano, Porzia Spedicato, Maria Teresa |
author_facet |
Abelló, Pere Abella, Álvaro Adamidou, Angeliki Jukic-Peladic, Stjepan Maiorano, Porzia Spedicato, Maria Teresa |
author_sort |
Abelló, Pere |
title |
Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
title_short |
Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
title_full |
Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
title_fullStr |
Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
title_full_unstemmed |
Geographical patterns in abundance and population structure of Nephrops norvegicus and Parapenaeus longirostris (Crustacea: Decapoda) along the European Mediterranean coasts |
title_sort |
geographical patterns in abundance and population structure of nephrops norvegicus and parapenaeus longirostris (crustacea: decapoda) along the european mediterranean coasts |
publisher |
CSIC - Instituto de Ciencias del Mar (ICM) |
publishDate |
2002-07 |
url |
http://hdl.handle.net/10261/5444 |
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