Using bioenergetics models to predict stable isotope ratios in fishes

  title={Using bioenergetics models to predict stable isotope ratios in fishes},
  author={Chris J. Harvey and Paul C. Hanson and Timothy E. Essington and Paul B. Brown and James F. Kitchell},
  journal={Canadian Journal of Fisheries and Aquatic Sciences},
To describe temporal dynamics of stable isotope ratios in fishes, we developed a bioenergetics-based model that links isotope ratios to growth, as influenced by fish size, temperature, diet, and prey quality. The model includes error terms for isotope ratios, diet proportions, and fractionation. The model accurately predicted temporal δ 15 N dynamics of lake trout (Salvelinus namaycush) in a diet-switch experiment but was less successful for δ 13 C, possibly because of variable fractionation… 

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