Temporal Genetic Stability Despite Decades of Overexploitation for Large Yellow Croaker in the East China Sea
Temporal Genetic Stability Despite Decades of Overexploitation for Large Yellow Croaker in the East China Sea
复制标题
尽管东海大黄鱼数十年过度捕捞，但时间遗传稳定性
DOI：
10.3389/fmars.2022.861840
复制
发表时间：
2022-04
影响因子：
3.7
通讯作者：
Liu Jin-Xian
中科院分区：
文献类型：
--
作者：
Xu Zhe;Dou Shuo-Zeng;Ding Shao-Xiong;Liu Jin-Xian
几乎所有的商业渔业种群都被过度开发，导致种群急剧下降和表型变化。了解过度捕捞的遗传效应对渔业资源的养护和管理具有重要意义。通过对历史和当代样品的微卫星分析，研究了中国东海高度捕捞的大黄鱼的遗传多样性和时空遗传结构的时间变化。尽管种群数量急剧下降，但我们发现遗传多样性指标(AR、HO和FIS)没有显著下降。东海中国海域大黄鱼的当代有效种群规模仍然足够大，遗传漂移不足以显著降低大黄鱼的遗传多样性。此外，没有检测到时空遗传结构的证据。所有的遗传结构分析都表明，时间因素解释的变异比例很小，与空间因素的解释比例相似。因此，我们得出结论：东中国海区大黄鱼的遗传结构在60年的时间跨度内基本稳定。这些结果表明，种群数量的急剧下降并没有改变东中国海区大黄鱼的遗传组成。基于遗传组成的长期稳定的时间格局，我们认为限制捕捞和栖息地恢复应该是大黄鱼种群恢复最直接和最有效的管理策略。
Almost all the commercial fishery stocks have been overexploited, resulting in dramatic populations decline and phenotypic change. Understanding the genetic effects of overexploitation have important implications for the conservation and management of fishery resources. In the present study, we investigated temporal changes of genetic diversity and spatio-temporal genetic structure in the heavily exploited large yellow croaker (Larimichthys crocea) in the East China Sea, through microsatellite analysis of historical and contemporary samples. Despite the drastic population decline, we found no significant decline in measures of genetic diversity (Ar, He and FIS). The contemporary effective population sizes were still large enough and genetic drift was not strong enough to reduce the genetic diversity of large yellow croaker significantly in the East China Sea. Furthermore, no evidence of spatio-temporal genetic structure was detected. All the analysis of genetic structure indicated that the proportion of variance explained by temporal factors was small and similar with that of spatial factors. We therefore concluded that the genetic structure of the large yellow croaker in the East China Sea has been essentially stable over the time-span of 60 years. These results suggested that the drastic population declines did not change genetic composition of large yellow croaker in the East China Sea. Based on the long-term stable temporal pattern of genetic composition, we suggested that fishing restrictions and habitat restoration should be the most direct and effective management strategy for the recovery of large yellow croaker stocks.
登录
查看更多内容
影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
使用双端 RAD 测序在非模型物种中开发多态性微卫星的快速且经济有效的方法
DOI：
10.1007/s00438-017-1337-x
发表时间：
2017-06
期刊：
Molecular Genetic Genomics
影响因子：
--
作者：
Xue Dong-Xiu;Li Yu-Long;Liu Jin-Xian
通讯作者：
Liu Jin-Xian
DOI：
--
发表时间：
2021
期刊：
Journal of entomology and zoology studies
影响因子：
--
作者：
M. Danish;Pooja Badoni;Karma Rinya;Supravat Maity;Anjan Chowdhury;Tushar Subhra Khanra
通讯作者：
M. Danish;Pooja Badoni;Karma Rinya;Supravat Maity;Anjan Chowdhury;Tushar Subhra Khanra
影响因子：
1.6
作者：
Le Wang;Xiaofeng Shi;Yongquan Su;Z. Meng;Hao-ran Lin
通讯作者：
Le Wang;Xiaofeng Shi;Yongquan Su;Z. Meng;Hao-ran Lin
DOI：
10.1073/pnas.172242899
发表时间：
2002-09-03
影响因子：
11.1
作者：
Hauser, L;Adcock, GJ;Carvalho, GR
通讯作者：
Carvalho, GR