{"refrec":{"BRefID":104952,"RR":"<b>Lorrain, A.; Paulet, Y.-M.; Chauvaud, L.; Savoye, N.; Donval, A.; Saout, C.</b> (2002). Differential d<sup>13</sup>C and d<sup>15</sup>N signatures among scallop tissues: implications for ecology and physiology. <i>J. Exp. Mar. Biol. Ecol. 275(1)</i>: 47-61. <a href=\"http://dx.doi.org/10.1016/S0022-0981(02)00220-4\" target=\"_blank\">dx.doi.org/10.1016/S0022-0981(02)00220-4</a>","BEntID":99958,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Exp. Mar. Biol. Ecol. 275(1)</i>: 47-61. <a href=\"https://dx.doi.org/10.1016/S0022-0981(02)00220-4\" target=\"_blank\">https://dx.doi.org/10.1016/S0022-0981(02)00220-4</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lorrain, A.; Paulet, Y.-M.; Chauvaud, L.; Savoye, N.; Donval, A.; Saout, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lorrain, A. <i>et al.</i>","Englishabstract":"There have been several studies where the isotopic composition of organisms has been determined seasonally, but fewer have examined separate organs. In this context, separate organs (e.g. gonad, digestive gland and muscle) of a suspension-feeder, the scallop <i>Pecten maximus</i>, were used to assess seasonal changes of both stable isotopes and biochemical components. Our study used multiple indicators [stable carbon and nitrogen isotope ratios, biochemical components and seston chlorophyll-<i>a</i> (chl <i>a</i>)] to track nutritive activity and energy allocation in <i>P. maximus</i> from the Bay of Brest (France). In addition to seasonal variation in the isotopic composition of <i>P. maximus</i> tissues, we found strong differences in the mean isotopic signatures of different organs. This has serious implications for interpretation of animal diets and potential use in animal physiology. Furthermore, we present evidence that seasonal variations of metabolism will cause changes in the isotopic composition not related to changes in the diet. Interpretation of isotopic data may require consideration of values from several separate organs. 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