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Open Access item Influence of the North Atlantic Oscillation on Mediterranean deep-sea shrimp landings

Authors:Maynou, Francesc
Keywords:Aristeus antennatus, North Atlantic Oscillation (NAO), Deep-sea, Benthic–pelagic coupling
Issue Date:24-Jun-2008
Publisher:Inter Research
Citation:Climate Research 36(3): 253-257 (2008)
Abstract:Recent studies have shown that the population dynamics of deep-sea organisms are affected by coupling between surface oceanic processes and energy, or trophic resources, reaching the sea floor. I analysed the correlation between the landings of a deep-sea shrimp (Aristeus antennatus) in Catalonia (NW Mediterranean) and the climatic indices of the annual North Atlantic Oscillation (NAO) and winter NAO between 1971 and 2007. I show that the size of landings is significantly correlated with the NAO and with the winter NAO, with 2 and 3 yr lags in both cases. Considering that around 60% of the landings comprise 2 to 3 yr old females, my results suggest that climatic conditions over the western Mediterranean (especially in winter) influence the year-class strength of this deep-sea shrimp, fished from 600 to 800 m depth.
Description:5 pages, 3 figures.
Publisher version (URL):http://dx.doi.org/10.3354/cr00746
ISSN:0936-577X (Print)
1616-1572 (Online)
Appears in Collections:(ICM) Artículos

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