Warm-water decapods and the trophic amplification of climate in the North Sea

Lindley, JA; Beaugrand, G; Luczak, C; Dewarumez, J-M; Kirby, RR. 2010 Warm-water decapods and the trophic amplification of climate in the North Sea. Biology Letters, 6 (6). 773-776.

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Abstract/Summary

A long-term time series of plankton and benthic records in the North Sea indicates an increase in decapods and a decline in their prey species that include bivalves and flatfish recruits. Here, we show that in the southern North Sea the proportion of decapods to bivalves doubled following a temperature-driven, abrupt ecosystem shift during the 1980s. Analysis of decapod larvae in the plankton reveals a greater presence and spatial extent of warm-water species where the increase in decapods is greatest. These changes paralleled the arrival of new species such as the warm-water swimming crab Polybius henslowii now found in the southern North Sea. We suggest that climate-induced changes among North Sea decapods have played an important role in the trophic amplification of a climate signal and in the development of the new North Sea dynamic regime.

Item Type: Publication - Article
Additional Keywords: benthos, bivalves, flatfish, Polybius henslowii, range, temperature
Depositing User: Miss Gemma Brice
Date made live: 26 Mar 2014 14:09
Last Modified: 06 Mar 2017 17:57
URI: http://plymsea.ac.uk/id/eprint/5823

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