Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print.
This paper explores the potential economic gains of allowing additional flexibility in gear choice, within rights-based management programs. A case study of US west coast sablefish (Anoplopoma fimbria) provides an example of a commercially important species where gear-switching is currently occurring within the individual fishing quota (IFQ) program, allowing us to isolate the economic potential of gear flexibility along two important margins: size and quality. We conduct a hedonic price analysis of ex-vessel prices using panel fish ticket data and linear mixed-effect econometric models to examine the influences of gear, size, condition, fishing sector, port group, landing month, and year on the price of sablefish. We generate a counter-factual scenario that represents the IFQ fishery where the use of fixed gear is prohibited by predicting what the size composition of catch would have been if the sablefish had been caught with trawl gear. We find that the flexibility of targeting sablefish with fixed gear between 2011 and 2016 generated an annual mean 10.45% increase in total revenue, or US$1.17 million, compared with the trawl-only scenario. These results show sablefish value increases through implementing gear flexibility, which contributes to a broader conversation of allocative efficiency.

中文翻译：

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通过渔具灵活性增加价值：美国西海岸黑斑鱼的案例研究

加拿大渔业和水产科学杂志，提前印刷。
本文探讨了在基于权利的管理计划中允许额外的装备选择灵活性的潜在经济收益。美国西海岸黑貂鱼（Anoplopoma fimbria）的案例研究提供了一个具有重要商业价值的物种的例子，目前在个体捕捞配额 (IFQ) 计划中进行了换网，这使我们能够将渔具灵活性的经济潜力与两个重要的边距：大小和质量。我们使用面板鱼票数据和线性混合效应计量经济模型对出船价格进行特征价格分析，以检查渔具、尺寸、条件、捕捞部门、港口组、登陆月份和年份对黑斑鱼价格的影响. 我们生成了一个反事实场景，该场景代表 IFQ 渔业，其中通过预测如果用拖网渔具捕获黑斑鱼的渔获量组成将是什么，则禁止使用固定渔具。我们发现，与仅使用拖网捕捞的情景相比，2011 年至 2016 年间使用固定渔具瞄准黑斑鱼的灵活性使总收入每年平均增长 10.45%，即 117 万美元。这些结果表明，通过实施渔具灵活性提高了黑貂的价值，这有助于更广泛地讨论分配效率。与仅拖网捕捞的情况相比。这些结果表明，通过实施渔具灵活性提高了黑貂的价值，这有助于更广泛地讨论分配效率。与仅拖网捕捞的情况相比。这些结果表明，通过实施渔具灵活性提高了黑貂的价值，这有助于更广泛地讨论分配效率。