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Influence of the trophic environment and metabolism on the dynamics of stable isotopes in the Pacific oyster (Crassostrea gigas): modeling and experimental approaches ArchiMer
Emmery, Antoine.
Stable isotope analysis (SIA) contributed extensively to better understand the trophic functioning of marine coastal ecosystems. However, their ecological interpretations are limited by the lack of accurate modelling tools to describe the dynamics and the trophic fractionation of stable isotopes by organisms. The influence of the trophic resource and the metabolism on the dynamics of delta13C and delta15N in the soft tissues of the Pacific oyster Crassostrea gigas has been investigated using experimental and modeling approaches. The results of the in situ survey in the Bay of Veys and the Bay of Brest showed that growth (whole soft body tissues and organs) and the trophic resource (diversity and quantity) have to be considered simultaneously to accurately...
Tipo: Text Palavras-chave: Chaîne alimentaire; Isotope stable en écologie; Animaux métabolisme; Crassostrea gigas; Invertébrés marins; Marqueurs biologiques; Effet isotopique.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00117/22854/20662.pdf
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