Federal University of ABC (UFABC), Center of Engineering, Modeling and Applied Social Sciences (CECS), Av. dos Estados 5001, SP09210-580, Bloco A, Sala 744-1, Bangu, Santo André, São Paulo, Brazil.
Math Biosci. 2011 Nov;234(1):25-32. doi: 10.1016/j.mbs.2011.08.003. Epub 2011 Aug 12.
Continuous time models of single exploited populations usually generate outcomes expressing a dependence of yield and economic items on harvest intensity. In this work it is shown that a known threshold policy is able to generate yield and related economic items that do not depend on harvest intensity, but rather on the values of the population threshold itself and the species intrinsic parameters. It is argued that since this result can be carried over to other models of single species dynamics, it may have significant implications in the management and conservation of exploited populations.
单种群受捕捞影响的连续时间模型通常会产生表示产量和经济项目与捕捞强度之间依赖关系的结果。在这项工作中，研究表明，一种已知的阈值策略能够产生不依赖于捕捞强度、而依赖于种群阈值本身和物种固有参数值的产量和相关经济项目。有人认为，由于这一结果可以推广到其他单物种动力学模型，因此它可能对受捕捞影响的种群的管理和保护具有重要意义。
