Extinction Risk of Exploited Wild Roach (Rutilus rutilus) Populations Due to Chemical Feminization
Extinction Risk of Exploited Wild Roach (Rutilus rutilus) Populations Due to Chemical Feminization
复制标题
由于化学女性化导致被利用的野生蟑螂（Rutilus rutilus）种群面临灭绝风险
DOI：
10.1021/es900857u
复制
发表时间：
2009-10-15
影响因子：
11.4
通讯作者：
Yang, Min
中科院分区：
文献类型：
--
作者：
An, Wei;Hu, Jianying;Yang, Min
建立了一个评估蟑螂雌性化对野生种群构成风险的模型。应用考虑两性的种群生命表矩阵模型和新开发的生育力动力学函数，计算了雄性布恩雌性化的蟑螂种群的内禀种群增长率（lambda）。最大可持续产量（MSY）被用来量化不同程度的女性化对可持续性的捕捞渔业的影响。模拟结果表明：（a）在没有捕捞压力的情况下，即使间性发生率达到100%，A也只会减少1.5-1.7%，（B）在选择性捕捞的情况下，间性的发生会显著增加当地蟑螂种群的灭绝风险;（3）蟑螂种群可持续发展所需的间性严重指数和性比的基准值分别为1，13和0.57。（3）协助环境管理人员作出与渔业资源养护有关的决策：
A model that assesses risks posed by feminization to wild populations of roach was developed. A population life table matrix model that considered both sexes and a newly developed fertility kinetic function was applied to calculate the intrinsic population growth rate (lambda) of roach populations where males had boon feminized. The maximum sustainable yield (MSY) was used to quantify the effect of various degrees of feminization on sustainability of exploited fisheries. Risk of extinction was calculated for wild roach populations, The results of the simulations suggested that (a) In the absence of fishing pressure A would only be decreased 1.5-1.7% even in the presence of a 100% incidence of intersex; (b) in the presence of selective fishing, the occurrence of intersex could significantly increase the extinction risk of local roach populations; (c) the benchmark value for the severity index of intersex and sex ratio required for a sustainable population of roach were estimated to be 1,13 and 0.57, respectively, The approach presented here provides a tool to (1) understand effects of male's feminization on population dynamics; (2) assess extinction risk of wild roach populations from feminization; (3) assist environmental managers in making policy decisions relative to fishery resource conservation: