The SIAR model, on the other hand, identified fishes, fish eggs, and invertebrates with mean contributions of 35%, 30%, and 16%, respectively. Invertebrates were also an important food source for S. lucioperca during this season according to Bugalho et al. (2008). In conclusion, this study showed that S. lucioperca shifted its diet from invertebrates, including crayfish, during spring, to fishes during autumn, a result also supported by the increase in the trophic position of S. lucioperca from spring to the autumn. This study is the first to report results on the food content of S. lucioperca revealed using stable isotope methods in Turkey. |
