Genetic methods can guide and improve the management of recreational mixed‐stock fisheries by informing stock‐specific estimates of harvest. We applied genetic stock identification and parentage‐based tagging to a recreational Chinook Salmon Oncorhynchus tshawytscha fishery in the Columbia River to illustrate the value of genetic analysis in management. We sampled landed catch in 2017 and 2018, assigned the fish to genetic reporting groups, explored temporal trends in harvest composition within and between seasons, and assessed the accuracy and precision of genetic methods against estimates from conventional tagging methodology. The genetic stock identification and parentage‐based tagging produced concordant stock assignments, and the harvest composition estimates were validated with independent data. High assignment rates, relative to expended sampling effort, and precise harvest composition estimates with adequate sample sizes demonstrate that both genetic methods can be complementary, effective tools in advancing harvest assessment and recreational fisheries management. The success of genetic stock identification and parentage‐based tagging supports the expanded application of genetics to similar fisheries, potentially alongside existing or emerging assessment methods, and guides future improvements in data collection and analysis.

中文翻译：

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遗传种群识别和基于亲本的标签在混合种群休闲奇努克鲑鱼渔业中的应用

遗传方法可以通过通知特定种群的收成估计数来指导和改善休闲混养渔业的管理。我们将遗传种群识别和基于父母身份的标签应用于休闲的奇努克鲑鱼Oncorhynchus tshawytscha哥伦比亚河的渔业，以说明遗传分析在管理中的价值。我们采样了2017年和2018年的登陆渔获量，将鱼分配给了基因报告小组，探讨了季节内和季节之间收获组成的时间趋势，并根据传统标签方法的估计评估了遗传方法的准确性和精确性。遗传种群鉴定和基于亲本的标签产生了一致的种群分配，并利用独立数据验证了收获物成分估计。相对于花费的采样工作而言，较高的分配率以及具有足够样本量的精确的收成构成估计值表明，这两种遗传方法在推进收成评估和休闲渔业管理方面可以是互补的，有效的工具。