The Feeding Features of The Pike-perch (Stizostedion lucioperca) Population in Lake Beyşehir

Authors : İsmet BALIK

Pages : 189-194

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The stomach contents of pike-perch insert ignore into journalissuearticles values(Stizostedion lucioperca); in Lake Beyşehir were investigated. The stomachs of 474 pike-perch were studied between March 1995 and February 1996. 76.6% of specimens had full and 23.4% had empty stomachs. The contents of the stomachs consisted of Gammarus sp. insert ignore into journalissuearticles values(77.5%);, Mysis sp. insert ignore into journalissuearticles values(14.7%);, Chirinomidae insert ignore into journalissuearticles values(4.3%);, pike-perch insert ignore into journalissuearticles values(2.7%); and others insert ignore into journalissuearticles values(0.8%);. Around 20.9% cannibalism was estimated and it was widespread among individuals with a length of 11-60 cm. In addition, it appears that pike-perch can consume fellow specimens with a mean size of 35.9% of its length.
Keywords : Pike perch, Stizostedion lucioperca, stomach content, cannibalism, Lake Beyşehir