Progressive changes in the Western English Channel foster a reorganization in the plankton food web

Reygondeau, Gabriel, Molinero, Juan Carlos, Coombs, Steve, MacKenzie, Brian R. and Bonnet, Delphine (2015) Progressive changes in the Western English Channel foster a reorganization in the plankton food web Progress in Oceanography, 137 . pp. 524-532. DOI 10.1016/j.pocean.2015.04.025.

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Supplementary data:


• We unveil regional progressive climate modifications fostering the entire plankton food web.
• Hydroclimate shifts have progressively impacted the seasonality of plankton.
• The profound plankton reorganization warns on the replacement of local species by cosmopolitan ones.

Growing evidence has shown a profound modification of plankton communities of the North East Atlantic and adjacent seas over the past decades. This drastic change has been attributed to a modification of the environmental conditions that regulate the dynamics and the spatial distribution of ectothermic species in the ocean. Recently, several studies have highlighted modifications of the regional climate station L4 (50° 15.00′N, 4° 13.02′W) in the Western English Channel. We here focus on the modification of the plankton community by studying the long-term, annual and seasonal changes of five zooplankton groups and eight copepod genera. We detail the main composition and the phenology of the plankton communities during four climatic periods identified at the L4 station: 1988–1994, 1995–2000, 2001–2007 and 2008–2012. Our results show that long-term environmental changes underlined by Molinero et al. (2013) drive a profound restructuration of the plankton community modifying the phenology and the dominance of key planktonic groups including fish larvae. Consequently, the slow but deep modifications detected in the plankton community highlight a climate driven ecosystem shift in the Western English Channel.

Document Type: Article
Additional Information: WOS:000362141700014
Keywords: Climatic periods; Environmental change; Environmental conditions; North East Atlantic; Plankton communities; Regional climate; Seasonal changes; Western english channels
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-N Experimental Ecology - Food Webs
Refereed: Yes
DOI etc.: 10.1016/j.pocean.2015.04.025
ISSN: 0079-6611
Projects: Future Ocean
Date Deposited: 29 Sep 2015 11:53
Last Modified: 19 Dec 2017 12:45

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