We develop a bioeconomic model for the management of the Barents Sea red king crab (RKC) fishery, which is a shared stock between Russia and Norway. The RKC is a well-established invasive species in the southern Barents Sea that has evolved into a very profitable fishery over the past two decades. The trade-off that resource managers face today is complicated by the many persisting ecological, biological, and economic uncertainties. We provide analytical solutions that demonstrate the existing trade-offs as well as a numerical analysis of the crab’s management, illustrating the potential for gain from cooperation associated with the unidirectional dispersal externality running from the Russian to the Norwegian zone. We first formulate the noncooperative solution and find the maximum economic yield (MEY) and maximum sustainable yield (MSY) solutions. We then analyze the cooperative solution and demonstrate numerically the effects of changing prices and dispersal intensity, together with the gains from cooperation.

中文翻译：

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管理既有价值又令人讨厌的自然资产：巴伦支海红帝王蟹的竞争与合作

我们开发了一种生物经济模型来管理巴伦支海红王蟹 (RKC) 渔业，这是俄罗斯和挪威之间的共享种群。RKC 是巴伦支海南部一个成熟的入侵物种，在过去的二十年中已经发展成为一个非常有利可图的渔业。由于许多持续存在的生态、生物和经济不确定性，资源管理者今天面临的权衡变得复杂。我们提供的分析解决方案展示了现有的权衡以及螃蟹管理的数值分析，说明了从与从俄罗斯到挪威地区的单向扩散外部性相关的合作中获益的潜力。我们首先制定非合作解决方案，然后找到最大经济收益率（MEY）和最大可持续收益率（MSY）解决方案。然后我们分析了合作解决方案，并以数值方式展示了价格变化和分散强度的影响，以及合作的收益。