Bottom trawling is associated with negative external effects such as seafloor pressure and high fuel use. Replacing bottom trawls with passive gear, such as creels, is therefore interesting for policymakers. We investigate the response of the Norway lobster fishery in Sweden to an expanded creel area. Using an economic model (FishRent), we analyse fleet structure, net present value and two environmental indicators under five management scenarios. Our results show that expanding the creel area increases the number of creel fishers, while some trawlers leave the fishery. In total, the net present value and the environmental performance of the fishery improve.

中文翻译：

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用纱架代替底拖网捕鱼的经济和环境影响

拖网捕鱼会带来负面的外部影响，例如海底压力和高燃料消耗。因此，对于决策者来说，用无齿齿轮（例如，纱架）代替拖网是很有趣的。我们调查了瑞典挪威龙虾捕捞对扩大的纱架面积的反应。使用经济模型（FishRent），我们在五个管理方案下分析了船队结构，净现值和两个环境指标。我们的结果表明，扩大筒子架面积会增加筒子架渔民的数量，而一些拖网渔船则离开渔场。总体而言，渔业的净现值和环境绩效得到改善。