Abstract
The stomach content of pikeperch Sander lucioperca was studied in 24 lakes in central Finland. The most important prey species was smelt Osmerus eperlanus then perch Perca fluviatilis. The proportion of cyprinids as prey increased with pikeperch total length (LT) and lake phosphorus content. Prey LT and pikeperch LT correlated positively, but the prey‐to‐predator size ratio correlated negatively with pikeperch LT.
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