FN Archimer Export Format PT J TI Impact of warming on abundance and occurrence of flatfish populations in the Bay of Biscay (France) BT AF HERMANT, Marie LOBRY, Jeremy BONHOMMEAU, Sylvain POULARD, Jean-Charles LE PAPE, Olivier AS 1:2;2:3;3:1;4:3;5:1; FF 1:;2:;3:;4:PDG-DOP-DCN-EMH;5:; C1 Univ Europeenne Bretagne, UMR Agrocampus Ouest 985, Inra Ecol & Sante Ecosyst, F-35042 Rennes, France. Univ Rennes 1, UMR CNRS 6553, F-35042 Rennes, France. IFREMER, Dept Ecol & Modeles Halieut, F-44311 Nantes, France. C2 UEB, FRANCE UNIV RENNES, FRANCE IFREMER, FRANCE SI NANTES SE PDG-DOP-DCN-EMH IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 2.444 TC 40 UR https://archimer.ifremer.fr/doc/00008/11922/8638.pdf LA English DT Article DE ;Flatfish;Temporal Trends;Interannual Variability;Climate Change;Geographic Distribution;Bay of Biscay AB The aim of the present study was to analyse the influence of warming on flatfish populations in the Bay of Biscay. 17 autumn cruises conducted from 1987 to 2006 over the whole shelf of the Bay of Biscay provided data for the abundance and occurrence of adults for twenty flatfish species. Trends in flatfish abundance were analysed with regard to geographic range of populations and interannual fluctuations in abundance were related to seawater temperature. Results showed significant trends in abundance and occurrence for 55% of the flatfish species in the Bay of Biscay. The response to warming of seawater was correlated to geographic ranges of species. While the abundance of the northern temperate species decreased, that of southern ones increased. Moreover, for 40% of the species which densities have significantly changed, abundances were correlated to temperatures in their year of birth, positively for southern species and negatively for northern ones. List, the abundance of flatfish adults over the Bay of Biscay was compared to previous data on juveniles in the Bay of Vilaine, one of the estuarine nursery ground in this area. For the northern species which have disappeared, the decline in juvenile abundances preceded that of adults by several years, indicating that the recruitment is the process affected. We concluded on a major impact of warming to explain changes in flatfish species abundances. Nevertheless, the impact of fishing interacts with that of climate change because the exploited species appeared to be the most negatively affected. (C) 2009 Elsevier B.V. All rights reserved. PY 2010 PD JUN SO Journal Of Sea Research SN 1385-1101 PU Elsevier Science Bv VL 64 IS 1-2 UT 000279440000006 BP 45 EP 53 DI 10.1016/j.seares.2009.07.001 ID 11922 ER EF