控藻鲢鱼的捕捞策略

鲢鱼是一种以水中浮游动植物为食的滤食性鱼类,利用鲢鱼控制蓝藻数量是一种有效的纯生物手段.分析蠡湖鲢鱼资源稳定的条件,建立鱼量的基本方程式及利润模型,给出利润与捕捞强度的关系和鱼群数量的变化趋势.最后得到了鲢鱼的放流与回捕策略.

A Fishing Plan for Silver Carp

The silver carp is a kind of filter-feeding fish,and the planktonic animals and plants are their main food.Algae control using the number of silver carp is an effective means,and it also is a purely biological means.This paper analyzes the conditions for stability of Li Lake silver carp resources,gives us not only the basic equations of the fish quantity and the profit model,but also the relationship between profits and the fishing intensity,the trend of fish quantity is also given in this paper.Finally,the paper gives us the plan for releasing and recaptureing silver carp.