新疆河鲈繁殖生态学参数的解析

Analysis about Ecological Parameters of Perca Fluviatilis Reproduction

在为期4年(1987～1990年)的新疆乌伦古湖渔业资源考察中,从来自各湖区的渔船中随机抽样了11161尾河鲈标本,对其年龄、体长、体重进行了统计。解剖测定了2880尾标本的性腺怀卵量、性比、性成熟系数。利用这些生态学参数建立了性腺发育周期模型及关于繁殖力的各项模型并编制了生命表,分析了河鲈产卵群体的性成熟时间与结构,以期对河鲈的人工引种与驯化提供理论依据。

From 1987 to 1990, 11 161 pieces of Perca fluviatilis had been sampled at random from fishing boats. Their age, length, weight,sex rate, sexual gland weight were tested. By using these data, the life table and the curve of sexual mature coefficient were made, The exponential model between fecundity and each ecological parameter above mentiond was founded; The reproductiue population structure and temporal patterns were also analysised.