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作 者 ：韩希福,王荣,王军萍

期 刊 ：生态学报 2001年 21卷 5期 页码：820~826

关键词：中华哲水蚤；小拟哲水蚤；垂直移动；生态适应性；

Keywords:Calanus sinicus, Paracalanus parvus, vertical migration, ecological adaptation,

摘 要 ：用最优化适合度种群生态学模型模拟研究了中华哲水蚤和小拟哲水蚤种群在渤海生态系统中的垂直移动模式。生命周期、世代时间、繁殖力和产卵量是决定这两种桡足类垂直移动的主要因素。在中华哲水蚤生活史类型中 ,无水平流动或水平流动速率很小时 ,昼夜的垂直移动能使其获得最优的生态适合度。水流的增加或方向的改变会使其在底层的停留时间增加。在小拟哲水蚤生活史类型中 ,随着水流的增加及其随之而来的损失率增高 ,其垂直移动的倾向逐步提高。

Abstract:Optimal population ecological adaptation model is used to demonstrate the vertical migration of Calanus sinicus and Paracalanus parvus population of Bohai Sea ecosystem. Life cycle, generation time, fecundity, and egg production quantity are the main factors to determine these two species‘ vertical migration. For a Calanus sinicus type life history, fitness is maximized by diurnal vertical migrations. When advection risk in surface waters is low and by spending less time in the upper waters as ...

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