Data for: Spatial and temporal genetic variation in an exploited reef fish: The effects of exploitation on cohort genetic structure

Many coral reef fishes are fished, often resulting in detrimental genetic effects; however, reef fishes often show unpredictable patterns of genetic variation, which potentially mask the effects of fishing. Our goals were to characterize spatial and temporal genetic variation and determine the effects of fishing on an exploited reef fish, Plectropomus leopardus, Lacepède (the common coral trout). To determine population structure, we genotyped 417 Great Barrier Reef coral trout from four populations sampled in two years (1996 and 2004) at nine microsatellite loci. To test for exploitation effects, we additionally genotyped 869 individuals from a single cohort (ages 3-5) across eight different reefs, including fished and control populations. Genetic structure differed substantially in the two sampled years, with only one year exhibiting isolation by distance. Thus, genetic drift likely plays a role in shaping population genetic structure in this species. Although we found no loss of gene...诸多珊瑚礁鱼类均受到捕捞活动影响，此举常引发有害的遗传效应；然而珊瑚礁鱼类的遗传变异模式往往难以预测，这可能会掩盖捕捞所带来的影响。本研究旨在解析空间与时间维度的遗传变异特征，并明确捕捞对被开发利用的珊瑚礁鱼类——豹纹鳃棘鲈（*Plectropomus leopardus* Lacepède，俗称珊瑚鳟）的影响。为解析种群结构，我们对采自4个种群的417尾大堡礁珊瑚鳟进行了基因分型，采样覆盖1996年与2004年两个年份，共检测9个微卫星位点（microsatellite loci）。为检验捕捞开发的影响，我们额外对8个不同礁体的869尾同世代（3~5龄）个体进行了基因分型，这些礁体涵盖捕捞种群与对照种群。两个采样年份的种群遗传结构差异显著，仅其中一个年份呈现距离隔离（isolation by distance）模式。因此，遗传漂变（genetic drift）可能在该物种的种群遗传结构塑造中发挥作用。尽管我们未发现基因……的丢失