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Trophic ecology of commercial-size meagre, Argyrosomus regius, in the Bay of Biscay (NE Atlantic) ArchiMer
Hubans, Barbara; Chouvelon, Tiphaine; Begout, Marie-laure; Biais, Gerard; Bustamante, Paco; Ducci, Lillian; Mornet, Francoise; Boiron, Anne; Coupeau, Yann; Spitz, Jerome.
In the north-eastern Atlantic, meagre (Argyrosomus regius) is one of the largest fish living on the shelf and this species has important commercial interest. Over the past two decades, large variations in meagre abundance have been observed with pluri-annual cycles but the factors involved in such variations are still unclear. Trophic interactions between meagre and other species (both prey and competitors) might be one explanatory variable of the observed variations in meagre recruitment and abundance. In the present study, we described the diet of commercial-size meagre in the Bay of Biscay from stomach content and stable isotope analyses, and explored its dietary ontogeny. We found that commercial-size meagres were mostly piscivorous with a diet...
Tipo: Text Palavras-chave: Diet; SIAR; Ontogeny; Marine top predators; Sciaenidae.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00384/49531/50028.pdf
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