摘要
本文报道了太湖中华绒螯蟹的周年食性分析。胃内物组成有植物、小杂鱼、虾类、贝类、水生昆虫和蠕虫。食物种类的出现率以植物和小杂鱼为最高,占68%,其余分别为40%,20%,12％和4％,为杂食性甲壳动物。胃内物占体重最低为0.01％,最高为0.9％。水温在14～20℃间的春末夏初和秋季胃内物含量最饱满。
The article reports the result of the feeding habit analysis of the mitten crab Eriocheir sinensis in Taihu Lake. Its stomach contents mainly consist of hydrophyte, miscellaneous fishes, shrimps, mollusc, aquatic insects and worms. The appearance of hydrophyte and miscellaneous fishes is the highest, accounting for 68%; the others account for 40%, 20%, 12%, and 4% respectively. The crab is an omnivorous animal. The minimum of its stomach contents is 0.01% of the body weight, and the maximum 0.9%. The stomach is almost full when the temperature is 14℃-20℃.
出处
《水产科技情报》
1989年第1期1-5,共5页
Fisheries Science & Technology Information
关键词
螯蟹
食性
食物含量
中华绒螯
蟹
Eriocheir sinensis
Feeding habit
Stomach contents
