The Feeding Behavior of Pikeperch (Sander lucioperca (L., 1758)) Living in Hirfanlı Dam Lake

Authors : Mehmet YILMAZ, Özlem ABLAK

Pages : 1159-1165

View : 22 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This study is concerned with the feeding behavior of pikeperch insert ignore into journalissuearticles values(Sander lucioperca insert ignore into journalissuearticles values(L., 1758);); living in Hirfanlı Dam Lake constructed on the Kızılırmak River. There were 326 pikeperch caught between August 1996 and July 1997. The fork length and weight of the pikeperch caught ranged between 105 and 529 mm and 12 and 1520 g in the general population. Pikeperch are carnivorous and piscivorous and they eat their own species when nutrients are lacking. The smallest fish-swallowing length was determined to be 145 mm. A cannibalism rate of 40.5% among pikeperch of 145-378 mm in length living in the lake was observed. The stomach content of individual pikeperch was as follows: Gammarus insert ignore into journalissuearticles values(27.7%);, Diptera larvae and pupae insert ignore into journalissuearticles values(22.7%);, fish and fish remains insert ignore into journalissuearticles values(22.1%);, Odonata nymphs insert ignore into journalissuearticles values(9.8%);, organism remains insert ignore into journalissuearticles values(9.5%);, Mysis insert ignore into journalissuearticles values(6.0%);, Isopoda insert ignore into journalissuearticles values(1.9%); and fibrous algae insert ignore into journalissuearticles values(0.3%);.
Keywords : Pikeperch, Sander lucioperca, feeding behavior, Hirfanlı Dam Lake