Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print.
Managers of recreational fisheries often rely on implicit and rarely tested assumptions regarding how fishing effort will change in response to regulations. For instance, they assume that reduced seasons will directly reduce fishing effort without producing angler behavioral adaptations to maintain fishing opportunities and harvest. Vessel trip reports from a multispecies for-hire fishery in New Jersey, USA, allowed us to empirically evaluate changes in fishing effort as overlapping seasons for four species became shorter and as possession limits decreased. We conducted focus groups with fishery stakeholders and then developed statistical models to evaluate hypotheses describing how anglers aboard for-hire vessels adapted to regulations. Fishing effort aboard charter boats remained consistent and primarily responded to the availability of “something” to harvest, suggesting that their customers are willing to substitute target species. Party boat anglers, in contrast, responded to the possession limits of black sea bass (Centropristis striata) and summer flounder (Paralichthys dentatus). Because party anglers were less willing to substitute target species, party vessel operators are likely particularly vulnerable to reductions in fishing opportunity and harvest potential.

中文翻译：

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较低的拥有限制和较短的季节直接减少了多物种海洋休闲渔业中的出租捕鱼量

加拿大渔业和水生科学杂志，印刷前。
休闲渔业的管理者通常依赖于隐含且很少经过检验的假设，即捕捞努力将如何根据法规发生变化。例如，他们假设减少的季节将直接减少捕鱼努力，而不会产生垂钓者的行为适应来维持捕鱼机会和收获。来自美国新泽西州多物种出租渔业的船舶旅行报告使我们能够凭经验评估捕捞努力的变化，因为四个物种的重叠季节变短并且拥有限制减少。我们与渔业利益相关者进行了焦点小组讨论，然后开发了统计模型来评估描述出租船只上的垂钓者如何适应法规的假设。包租船上的捕鱼努力保持一致，主要是对“东西”可收获的可用性作出反应，这表明他们的客户愿意替代目标物种。相比之下，派对船垂钓者对黑海鲈 (Centropristis striata) 和夏比目鱼 (Paralichthys dentatus) 的拥有限制做出了回应。由于派对垂钓者不太愿意替代目标物种，派对船只运营商可能特别容易受到捕鱼机会和收获潜力减少的影响。