Rising water temperatures along the northeastern U.S. continental shelf have resulted in an offshore range shift of the Atlantic surfclam Spisula solidissima to waters still occupied by ocean quahogs Arctica islandica. Fishers presently are prohibited from landing both Atlantic surfclams and ocean quahogs in the same catch, thus limiting fishing to locations where the target species can be sorted on deck. Wind energy development on and around the fishing grounds will further restrict the fishery. A spatially explicit model of the Atlantic surfclam fishery (Spatially Explicit Fishery Economics Simulator) has the ability to simulate the consequences of fishery displacement due to wind energy development in combination with fishery and stock dynamics related to the species' overlap with ocean quahogs. Five sets of simulations were run to determine the effect of varying degrees of species overlap due to Atlantic surfclam range shifts in conjunction with fishing constraints due to wind farm development. Simulations tracked changes in relative stock status, fishery performance, and the economic consequences for the fishery. Compared to a business-as-usual scenario, all scenarios with less-restrictive fishing penalties due to species overlap exhibited higher raw catch numbers but also greater reductions in revenue and increases in cost after the implementation of wind farms. This analysis serves to demonstrate the response of the Atlantic surfclam fishery to combined pressures from competing ocean uses and climate change and emphasizes the potential for economic disruption of fisheries as climate change interacts with the evolution of ocean management on the continental shelf.

中文翻译：

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气候变化引起的范围变化和风能开发对大西洋扇贝渔业未来经济状况的交互影响

美国东北部大陆架水温上升导致大西洋海蛤Spisula solidissima的近海范围转移到仍被海洋 quahogs Arctica islandica占据的水域. 目前禁止渔民在同一渔获物中捕获大西洋蛤蜊和海洋石斑鱼，从而将捕捞活动限制在可以在甲板上对目标物种进行分类的地点。渔场及其周边的风能开发将进一步制约渔业。大西洋 surfclam 渔业的空间显式模型（空间显式渔业经济学模拟器）能够模拟由于风能开发以及与该物种与海洋 quahogs 重叠相关的渔业和种群动态而导致的渔业流离失所的后果。运行了五组模拟，以确定由于大西洋海藻范围变化以及风电场开发导致的渔业限制而导致的不同程度的物种重叠的影响。模拟跟踪相对库存状态的变化，渔业绩效，以及渔业的经济后果。与一切照旧的情景相比，由于物种重叠而导致捕捞处罚限制较少的所有情景都显示出更高的原始捕获量，但在实施风电场后收入减少和成本增加也更大。该分析旨在证明大西洋蛤蜊渔业对竞争性海洋利用和气候变化的综合压力的反应，并强调了气候变化与大陆架海洋管理演变相互作用时渔业经济中断的可能性。由于物种重叠而导致捕鱼处罚限制较少的所有情景都显示出更高的原始捕获量，但在实施风电场后收入减少更多，成本增加。该分析旨在证明大西洋蛤蜊渔业对竞争性海洋利用和气候变化的综合压力的反应，并强调了气候变化与大陆架海洋管理演变相互作用时渔业经济中断的可能性。由于物种重叠而导致捕鱼处罚限制较少的所有情景都显示出更高的原始捕获量，但在实施风电场后收入减少更多，成本增加。该分析旨在证明大西洋蛤蜊渔业对竞争性海洋利用和气候变化的综合压力的反应，并强调了气候变化与大陆架海洋管理演变相互作用时渔业经济中断的可能性。