CAJ | 학술논문

假设鱼群只在红树林自然保护区进行繁殖活动，并且在该区域禁止捕捞，建立了一个渔业资源储量的离散动力学模型，分析了正平衡点的存在性、稳定性以及关于捕捞力度的局部分叉，并用数值模拟验证了不动点的局部分叉，应用中心流形定理研究了有一个特征值为-1时平衡点的稳定性。
가설어군지재홍수림자연보호구진행번식활동，병차재해구역금지포로，건립료일개어업자원저량적리산동역학모형，분석료정평형점적존재성、은정성이급관우포로력도적국부분차，병용수치모의험증료불동점적국부분차，응용중심류형정리연구료유일개특정치위-1시평형점적은정성。
In this paper , we assume that the fish is only bred and fishing is banned in mangrove natural reserve .We establish a dynamical model of fishery stock to analyze the existence and stability of the positive equilibrium , and local bifurcations about fishing efforts .The local bifurcation is verified by numerical simulation .We use center-manifold theorem to investigate the stability of the positive equilibrium with one eigenvalue being -1.