Atlantic salmon, Salmo salar L., stocks worldwide have dwindled, and stricter recreational fishing regulations have been implemented. This study estimates the recreational value of salmon fishing under different regulatory schemes and identifies factors explaining changes in net economic value of sport fishing. A Contingent Valuation mail survey in the Verdal River, Norway, asked anglers their willingness-to-pay for increased fishing expenditures or willingness-to-accept compensation in reduced fishing expenditures, to estimate recreational value. The average annual recreational value per angler decreased under stricter regulations from about €420 (in 2007–2009) to €280 (2010–2012) to €180 for the future scenario (2013–2015). Although an overall net decline in recreational value was found with stricter regulations, anglers have heterogeneous preferences. Anglers with non-catch motives or high place attachment have higher recreational value with stricter regulations than others. If stricter regulations remain over time, younger, less consumptive-oriented anglers would probably dominate the fishery.

中文翻译：

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不同捕捞规定下大西洋鲑鱼垂钓的娱乐价值

大西洋鲑鱼，鲑鱼盐 沼L.，世界范围内的种群已经减少，并且已经实施了更严格的休闲捕鱼规定。本研究估计了不同监管计划下鲑鱼捕捞的娱乐价值，并确定了解释游钓净经济价值变化的因素。在挪威 Verdal 河进行的一项或有估值邮件调查询问垂钓者他们愿意为增加的捕鱼支出支付费用还是愿意接受因减少捕鱼支出而获得的补偿，以估计休闲价值。在更严格的规定下，每个垂钓者的年平均娱乐价值从大约 420 欧元（2007-2009 年）下降到 280 欧元（2010-2012 年），再到未来情景（2013-2015 年）的 180 欧元。尽管在更严格的规定下发现休闲价值整体净下降，但垂钓者的偏好却各不相同。与其他人相比，具有非捕捞动机或高处依恋的垂钓者具有更高的娱乐价值和更严格的规定。如果随着时间的推移保持更严格的规定，年轻的、消费较少的垂钓者可能会主宰渔业。