Prey size had no effect on the gastric evacuation rate of pikeperch Stizost
edion lucioperca. The gastric evacuation was adequately described applying
an exponent of 0.5 in the power model. Applying length instead of weight of
pikeperch in the gastric evacuation model resulted in a change of estimate
d parameters, in accordance with the weight-length relationship of pikeperc
h. (C) 2001 The Fisheries Society of the British Isles.