During the 2015/2016 West Coast Dungeness crab (Metacarcinus magister) season, the opening of the fishery in California was delayed almost five months due to high and persistent concentrations of domoic acid in crab following a massive coast-wide Pseudo-nitzschia australis (P. australis) bloom. A hurdle model was used to estimate lost revenues to fishers due to the delay in the opening of the 2015/2016 season, and an input-output model is used to calculate resulting losses in income and employment statewide. The analysis suggests that Dungeness crab revenue was decreased as a result of the season delay, but the reduction was less than was initially estimated when a request for disaster assistance was submitted. However, the analysis also shows that fishers lost out on revenue from other fisheries equal in magnitude to the reduction in crab revenues because the delayed opening led fishers to reduce effort in non-crab fisheries. The research demonstrates the need to consider impacts beyond the revenue losses to directly affected fisheries. Potential management and industry responses that might mitigate future losses if future large scale P. australis blooms threaten fishery delays or closures are discussed along with the research needed to determine whether and how to implement these strategies.

在2015/2016年西海岸太平洋大蟹（Metacarcinus magister）季节，由于大规模沿海全境伪造金枪鱼（Pseudo-Nitzschia australis（P） （澳洲）盛开。使用障碍模型来估计由于2015/2016渔季开放延迟而给渔民造成的收入损失，并使用投入产出模型来计算全州的收入和就业损失。分析表明，由于季节推迟，太平洋大蟹的收入有所减少，但这一减少幅度小于提交灾害援助请求时的最初估计。但是，分析还显示，渔民从其他渔业中损失的收入与螃蟹收入的减少幅度相当，因为延迟开放导致渔民减少了非蟹类渔业的工作量。研究表明，需要考虑收入损失以外对直接影响的渔业的影响。讨论了南美白对虾开花威胁渔业延误或关闭以及确定和是否实施这些策略所需的研究。