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鲢、鳙摄食能力的比较研究
董双林, 李德尚
青岛海洋大学水产学院青岛 266003

摘要:

于1990年7月-1991年10月用实验生态学方法研究鲢、鳙的摄食能力。结果表明，鲢对水中浮游植物的摄食能力较鳙的大，但对浮游动物的摄食能力较鳙的小，对于直径约70μm的食物颗粒两者的摄食能力相当。

关键词: 摄食能力鲢鳙

DOI：

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基金项目:

COMPARATIVE STUDIES ON THE FEEDING CAPACITY OF SILVER CARP (HYPOPHTHALMICHTHYS MOLITRIX) AND BIGHEAD CARP (ARISTICHTHYS NOBILIS)

Dong Shuanglin, Li Deshang

Fisheries College, Ocean University of Qingdao, Qingdao 266003

Abstract:

The authors’ (1990—1991) studies on the feeding capacity of silver carp and bighead carp by means of experimental ecology showed that the filtering frequency of silver carp was slightly greater than that of bighead carp, but the suction volume of the latter was much greater than that of the former, so the filtering rate (filtering frequency multiplied by suction volume) of silver carp was smaller than that of bighead carp. The filtering efficiency of silver carp for phytoplankton was much greater than that of bighead carp for them. The feeding capacity (filtering rate multiplied by filtering efficiency) or removal rates of silver carp for phytoplankton were greater than those of bighead carp, but for zooplankton those of the former were smaller than those of the latter; for food particles about 70 pm the two corresponding parameters for both of them were almost equal.

Key words: Feeding capacity, Silver carp, Bighead carp

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