Recent reviews of salmon and steelhead hatchery programs have led to recommendations to reform hatchery practices and produce better supplementation outcomes. Of particular concern were reductions in performance of supplemented populations due to domestication selection attributed to hatchery production. One key recommendation was to achieve an index of domestication selection termed proportionate natural influence (PNI) of 0.67 or higher. The Priest Rapids Hatchery, located adjacent to the Columbia River below Priest Rapids Dam, was one of the hatcheries included in this review. Data gathered from the hatchery and from the population being supplemented before implementation of reform measures indicated that the program was falling short of this goal. In this case study, we describe the influence of various partnerships and practices implemented in the Priest Rapids Hatchery program to achieve the recommended PNI for the program. The program exceeded the PNI goal in each of the last 5 years and since 2012 has averaged 0.72. The success in reaching the recommended benchmark was the result of generating creative solutions and building diverse decisional and operational partnerships that could achieve goals of hatchery reform in a cost‐effective and broadly supported manner.

中文翻译：

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扩大伙伴关系和创新以实施大型哥伦比亚河孵化场计划的改革

最近对鲑鱼和硬头鱼孵化场计划的审查提出了改革孵化场做法并产生更好补充效果的建议。特别令人关注的是由于孵化场生产所致的驯化选择而导致的补充种群性能下降。一个重要的建议是使归化选择指数达到0.67或更高的比例自然影响力（PNI）。Priest Rapids孵化场位于Priest Rapids大坝下方，毗邻哥伦比亚河，是本评价中包括的孵化场之一。在实施改革措施之前，从孵化场和补充人口中收集的数据表明，该计划未能实现这一目标。在本案例研究中，我们描述了在Priest Rapids Hatchery计划中实施的各种伙伴关系和实践的影响，以实现该计划的推荐PNI。在过去的5年中，该计划均超出了PNI的目标，自2012年以来，该平均值为0.72。达到建议基准的成功是产生创意解决方案并建立多样化的决策和运营伙伴关系的结果，这些伙伴关系可以以经济高效且得到广泛支持的方式实现孵化场改革的目标。