Stable isotope analyses of collagen in fish scales: limitations set by scale architecture |
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| Authors: | J. J. Hutchinson, C. N. Trueman,&dagger &Dagger |
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| Affiliation: | Emu Ltd, Hayling Island Marine Laboratory, Hayling Island, Hampshire PO11 0DG, U.K.; and School of Ocean and Earth Sciences, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3QL, U.K. |
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| Abstract: | Comparisons between the stable isotope composition of carbon in collagen excized from juvenile (freshwater) and adult (marine) portions of scales from Atlantic salmon Salmo salar demonstrated that c. 75% of carbon analysed in the 'juvenile' portion of the scale derives from later formed collagen. Scale collagen analyses were effectively restricted to the last season of growth. |
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| Keywords: | Atlantic salmon diet growth scales stable isotopes |
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