Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea

Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea

9 pages, 3 figures, 1 table.-- Available online Nov 9, 2007.-- Issue title: "The Wrapping Up of the IDEA Project: International workshop on environment, demersal resources and fisheries" (Enric Massutí, Joan Moranta, John D.M. Gordon, Beatriz Morales-Nin and Pere Oliver, eds).

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Main Author: Maynou, Francesc
Format: artículo biblioteca
Language:English
Published: Elsevier 2008-06
Subjects:Aristeus antennatus, Fisheries, NW Mediterranean, North Atlantic Oscillation,
Online Access:http://hdl.handle.net/10261/17025
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spelling dig-icm-es-10261-170252020-11-19T07:35:53Z Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea Maynou, Francesc Aristeus antennatus Fisheries NW Mediterranean North Atlantic Oscillation 9 pages, 3 figures, 1 table.-- Available online Nov 9, 2007.-- Issue title: "The Wrapping Up of the IDEA Project: International workshop on environment, demersal resources and fisheries" (Enric Massutí, Joan Moranta, John D.M. Gordon, Beatriz Morales-Nin and Pere Oliver, eds). The fluctuations of catches of the deep-sea shrimp Aristeus antennatus (Risso, 1816) were analysed in the 6 ports of Catalonia where production is concentrated, based on monthly landings from 1988 to 2004. The 6 selected ports produced 300 t of red shrimp in 2004, or 80% of the total production in Catalonia. The series for each port showed clear interannual variability, with peaks of production in the early 1990s and more recently from 2001 to 2003. The time periods of the monthly data series, estimated by frequency analysis based on Fourier transform, varied around 7–8 years in the four central ports and 12–13 years in the two northern ports. Additionally, the different curves were not in phase: even in nearby ports, the maximum production is observed in different years. Since the North Atlantic Oscillation (NAO) index is an excellent proxy for long-term series of environmental variables, we aimed to explore relationships between the fluctuation of the NAO index and A. antennatus landings in the Catalan Sea. The correlation between the mean annual NAO index and the annual catches in each port was positive and significant with some time lags (from 1 to 3 years). The existence of clear patterns linking the NAO with marine ecological processes has been demonstrated in many studies, but the underlying ecological mechanisms are far from being well understood. The variations in environmental parameters linked to the NAO may act on biological organisms at different levels (individual, population) through physiology (metabolic and reproductive processes) or through trophic relationships, including ecological cascade effects. We propose that NAO-induced environmental variability may enhance food supply to A. antennatus and hence strengthen the reproductive potential of particular year classes, which result in increased catches 1 to 3 years later, although other possible effects of environmental variability on the population dynamics of this species are worth investigating. Peer reviewed 2009-09-17T11:16:26Z 2009-09-17T11:16:26Z 2008-06 artículo http://purl.org/coar/resource_type/c_6501 Journal of Marine Systems 71(3-4): 294–302 (2008) 0924-7963 http://hdl.handle.net/10261/17025 10.1016/j.jmarsys.2006.09.008 en https://doi.org/10.1016/j.jmarsys.2006.09.008 open 24064 bytes application/msword Elsevier
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Aristeus antennatus
Fisheries
NW Mediterranean
North Atlantic Oscillation
Aristeus antennatus
Fisheries
NW Mediterranean
North Atlantic Oscillation
spellingShingle Aristeus antennatus
Fisheries
NW Mediterranean
North Atlantic Oscillation
Aristeus antennatus
Fisheries
NW Mediterranean
North Atlantic Oscillation
Maynou, Francesc
Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
description 9 pages, 3 figures, 1 table.-- Available online Nov 9, 2007.-- Issue title: "The Wrapping Up of the IDEA Project: International workshop on environment, demersal resources and fisheries" (Enric Massutí, Joan Moranta, John D.M. Gordon, Beatriz Morales-Nin and Pere Oliver, eds).
format artículo
topic_facet Aristeus antennatus
Fisheries
NW Mediterranean
North Atlantic Oscillation
author Maynou, Francesc
author_facet Maynou, Francesc
author_sort Maynou, Francesc
title Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
title_short Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
title_full Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
title_fullStr Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
title_full_unstemmed Environmental causes of the fluctuations of red shrimp (Aristeus antennatus) landings in the Catalan Sea
title_sort environmental causes of the fluctuations of red shrimp (aristeus antennatus) landings in the catalan sea
publisher Elsevier
publishDate 2008-06
url http://hdl.handle.net/10261/17025
work_keys_str_mv AT maynoufrancesc environmentalcausesofthefluctuationsofredshrimparisteusantennatuslandingsinthecatalansea
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