Tests of size and growth effects on Arctic charr (Salvelinus alpinus) otolith δ18 O and δ13 C values.

The investigation indicated the presence of linked growth rate and size effects on otolith δ13 C values, the nature of which requires further study. Otolith δ18 O values were unaffected by individual growth rate and size, confirming the applicability of these values to thermal reconstructions of fish habitat.