太湖白鱼和梅鲚的数量增长模型  

Dynamics Model of Erythroculter Ilishae Formis and Coilia Nasus in the Taihu Lake

作　　者：冯其明[1] 

机构地区：[1]无锡商业职业技术学院基础部,江苏无锡214153

出　　处：《数学的实践与认识》2011年第19期251-256,共6页Mathematics in Practice and Theory

摘　　要：太湖的主要肉食性鱼类是白鱼,它是捕食梅鲚的主要鱼类.在建立了反映两者相互关系的数学模型后,分析了模型的稳定性、稳健性,通过数值模拟得到了种群数量随时间变化的曲线和相应的轨线,并探讨了捕捞强度、增殖放流对种群数量的影响.The mainly carnivorous fish in the Taihu lake is Erythroculter ilishae formis, and Coilia nasus is its main food.This paper gives us a mathematics model of their correlation, analyzes the stability and steady of model. The curves axe also he given by numerical simulation,which reflecting the population dynamics of two species.Finally, the paper gives us an analysis on fishing srength and releasing.

关 键 词：白鱼 梅鲚 放流 稳定性 捕捞强度 数值模拟 

分 类 号：O242.1[理学—计算数学]