摘要
通过对 2 4 1尾月鳢食性的研究表明 ,体长在 9.2～ 2 0 .0mm的仔鱼 ,主要以枝角类、桡足类和摇蚊幼虫为食 ,体长在 2 1mm以上的幼鱼及成鱼主要以小型鱼类、虾为食 ,属动物性食性。其摄食率和饱满指数随季节变化而变化 ,以夏季最高 。
A research was reported on the food composition of Channa asiatica. Diets of Channa asiatica with body length between 9.2 mm and 20.0 mm were Cladocera, Copepoda and Chironomidae. However,Channa asiatica with body length over 21.0 mm feeded mainly on small fish and shrimps .And the feeding rate and plumpness index of Channa asiatica changed with the season, highest in the summer and lowest in the winter.
出处
《湖北农学院学报》
2000年第4期348-350,共3页
Journal of Hubei Agricultural College
基金
湖北省教委科研基金资助项目! (98A0 30 )
关键词
月鳢
食性
摄食率
饱满指数
Channa asiatica
food composition
feeding rate
plumpness index
