The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands
The aim of the present paper is to study the relationships between some climatic indices and parental stock, recruitment and accessibility to trawl fishery of hake (Merluccius merluccius) and red shrimp (Aristeus antennatus) off Balearic Islands (western Mediterranean). Available annual catch per un...
Published in: | Journal of Marine Systems |
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2008
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Online Access: | http://hdl.handle.net/10508/7671 http://hdl.handle.net/10261/323906 https://doi.org/10.1016/j.jmarsys.2007.01.009 |
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ftcsic:oai:digital.csic.es:10261/323906 2024-02-11T10:06:48+01:00 The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands Massutí, Enric Monserrat, Sebastià Oliver, Pere Moranta, Joan López-Jurado, José Luis Marcos, Marta Hidalgo, Manuel Guijarro, Beatriz Carbonell, Ana Pereda, Pilar Mediterranean Sea Western Mediterranean Sea 2008 http://hdl.handle.net/10508/7671 http://hdl.handle.net/10261/323906 https://doi.org/10.1016/j.jmarsys.2007.01.009 unknown Centro Oceanográfico de Baleares Journal of Marine Systems, 71. 2008: 421-438 0924-7963 http://hdl.handle.net/10508/7671 http://hdl.handle.net/10261/323906 doi:10.1016/j.jmarsys.2007.01.009 2405 1879-1573 open Pesquerías Centro Oceanográfico de Baleares Recruitment Catchability Trawl fishery Hake Red shrimp Environmental factors Climate indices Western Mediterranean Balearic Islands research article 2008 ftcsic https://doi.org/10.1016/j.jmarsys.2007.01.009 2024-01-16T11:47:21Z The aim of the present paper is to study the relationships between some climatic indices and parental stock, recruitment and accessibility to trawl fishery of hake (Merluccius merluccius) and red shrimp (Aristeus antennatus) off Balearic Islands (western Mediterranean). Available annual catch per unit effort, recruitment and spawning stock biomass have been used as biological data. As environmental data, the meso- scale IDEA index and the large-scale North Atlantic Oscillation (NAO) and Mediterranean Oscillation (MO) indices have been used. To analyze possible links between these indices with the population dynamics of demersal resources, two non-linear approaches have been applied: (i) stock–recruitment relationships from Ricker and Beverton–Holt models, by sequentially incorporating environment factors; (ii) generalized additive modelling, both classical general and threshold non-additive models were considered. The latter simulate an abrupt change in explicative variables across different phases (time periods or climatic index values). The results have shown that two oceanographic scenarios around the Balearic Islands, associated with macro and meso-scale climate regimes, can influence the population dynamics of hake and red shrimp. This is especially true for recruitment, which seems to be enhanced during low NAO and IDEA indices periods. During these periods, colder-than-normal winters generate high amounts of cold Western Mediterranean Intermediate Waters (WIW) in the Gulf of Lions, which flow southwards and reach the Balearic Islands channels in spring, increasing the productivity in the area. This oceanographic scenario could also be favourable to the distribution of hake on the fishing grounds where the trawl fleet targets this species, increasing its accessibility to the fishery. Both spawning stock and abundance of red shrimp seems to be also enhanced by high MO index periods, which could reflect the increased presence of the saline and warm Levantine Intermediate Waters (LIW) in the study area, ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Hake ENVELOPE(15.612,15.612,66.797,66.797) Journal of Marine Systems 71 3-4 421 438 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Pesquerías Centro Oceanográfico de Baleares Recruitment Catchability Trawl fishery Hake Red shrimp Environmental factors Climate indices Western Mediterranean Balearic Islands |
spellingShingle |
Pesquerías Centro Oceanográfico de Baleares Recruitment Catchability Trawl fishery Hake Red shrimp Environmental factors Climate indices Western Mediterranean Balearic Islands Massutí, Enric Monserrat, Sebastià Oliver, Pere Moranta, Joan López-Jurado, José Luis Marcos, Marta Hidalgo, Manuel Guijarro, Beatriz Carbonell, Ana Pereda, Pilar The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
topic_facet |
Pesquerías Centro Oceanográfico de Baleares Recruitment Catchability Trawl fishery Hake Red shrimp Environmental factors Climate indices Western Mediterranean Balearic Islands |
description |
The aim of the present paper is to study the relationships between some climatic indices and parental stock, recruitment and accessibility to trawl fishery of hake (Merluccius merluccius) and red shrimp (Aristeus antennatus) off Balearic Islands (western Mediterranean). Available annual catch per unit effort, recruitment and spawning stock biomass have been used as biological data. As environmental data, the meso- scale IDEA index and the large-scale North Atlantic Oscillation (NAO) and Mediterranean Oscillation (MO) indices have been used. To analyze possible links between these indices with the population dynamics of demersal resources, two non-linear approaches have been applied: (i) stock–recruitment relationships from Ricker and Beverton–Holt models, by sequentially incorporating environment factors; (ii) generalized additive modelling, both classical general and threshold non-additive models were considered. The latter simulate an abrupt change in explicative variables across different phases (time periods or climatic index values). The results have shown that two oceanographic scenarios around the Balearic Islands, associated with macro and meso-scale climate regimes, can influence the population dynamics of hake and red shrimp. This is especially true for recruitment, which seems to be enhanced during low NAO and IDEA indices periods. During these periods, colder-than-normal winters generate high amounts of cold Western Mediterranean Intermediate Waters (WIW) in the Gulf of Lions, which flow southwards and reach the Balearic Islands channels in spring, increasing the productivity in the area. This oceanographic scenario could also be favourable to the distribution of hake on the fishing grounds where the trawl fleet targets this species, increasing its accessibility to the fishery. Both spawning stock and abundance of red shrimp seems to be also enhanced by high MO index periods, which could reflect the increased presence of the saline and warm Levantine Intermediate Waters (LIW) in the study area, ... |
format |
Article in Journal/Newspaper |
author |
Massutí, Enric Monserrat, Sebastià Oliver, Pere Moranta, Joan López-Jurado, José Luis Marcos, Marta Hidalgo, Manuel Guijarro, Beatriz Carbonell, Ana Pereda, Pilar |
author_facet |
Massutí, Enric Monserrat, Sebastià Oliver, Pere Moranta, Joan López-Jurado, José Luis Marcos, Marta Hidalgo, Manuel Guijarro, Beatriz Carbonell, Ana Pereda, Pilar |
author_sort |
Massutí, Enric |
title |
The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
title_short |
The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
title_full |
The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
title_fullStr |
The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
title_full_unstemmed |
The influence of oceanographic scenarios on the population dynamics of demersal resources in the western Mediterranean: Hypothesis for hake and red shrimp off Balearic Islands |
title_sort |
influence of oceanographic scenarios on the population dynamics of demersal resources in the western mediterranean: hypothesis for hake and red shrimp off balearic islands |
publishDate |
2008 |
url |
http://hdl.handle.net/10508/7671 http://hdl.handle.net/10261/323906 https://doi.org/10.1016/j.jmarsys.2007.01.009 |
op_coverage |
Mediterranean Sea Western Mediterranean Sea |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Centro Oceanográfico de Baleares Journal of Marine Systems, 71. 2008: 421-438 0924-7963 http://hdl.handle.net/10508/7671 http://hdl.handle.net/10261/323906 doi:10.1016/j.jmarsys.2007.01.009 2405 1879-1573 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.jmarsys.2007.01.009 |
container_title |
Journal of Marine Systems |
container_volume |
71 |
container_issue |
3-4 |
container_start_page |
421 |
op_container_end_page |
438 |
_version_ |
1790604768719142912 |