Ecosystem Based Fisheries Management aims to broaden the set of factors included in assessments and management decision making but progress with implementation remains limited. We developed a framework that examines the consequences of temporal changes in temperature and ocean pH on yield and profit of multiple interacting stocks including eastern Bering Sea (EBS) snow, southern Tanner, and red king crab. Our analyses integrate experimental work on the effects of temperature and ocean pH on growth and survival of larval and juvenile crab and monitoring data from surveys, fishery landings, and at-sea observer programs. The impacts of future changes in temperature and ocean pH on early life history have effects that differ markedly among stocks, being most pessimistic for Bristol Bay red king crab and most optimistic for EBS snow crab. Our results highlight that harvest control rules that aim to maximize yield lead to lower profits than those that aim to maximize profit. Similarly, harvest control rules that aim to maximize profit lead to lower yields than those that aim to maximize yield, but differences are less pronounced. Maximizing profits has conservation benefits, especially when the implemented harvest control rule reduces fishing mortality if population biomass is below a threshold level.

基于生态系统的渔业管理旨在扩大包括在评估和管理决策中的一系列因素，但实施进展仍然有限。我们开发了一个框架，检查温度和海洋 pH 值的时间变化对多种相互作用种群的产量和利润的影响，包括白令海东部 (EBS) 雪、坦纳南部和红帝王蟹。我们的分析整合了温度和海洋 pH 值对幼蟹和幼蟹生长和存活影响的实验工作，以及来自调查、渔业登陆和海上观察员计划的监测数据。未来温度和海洋 pH 值变化对早期生命史的影响在不同种群之间存在显着差异，布里斯托尔湾红帝王蟹最悲观，而 EBS 雪蟹最乐观。我们的研究结果强调，旨在最大化产量的收获控制规则导致的利润低于旨在最大化利润的收获控制规则。同样，旨在最大化利润的收获控制规则导致的产量低于旨在最大化产量的收获控制规则，但差异不那么明显。利润最大化具有保护效益，特别是当实施的收获控制规则在种群生物量低于阈值水平时降低捕捞死亡率时。