Marine Protected Areas in Spatial Property-Rights Fisheries
Marine Protected Areas in Spatial Property-Rights Fisheries
复制标题
空间产权渔业中的海洋保护区
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
D. Kaffine
中科院分区：
文献类型：
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作者：
C. Costello;D. Kaffine
海洋保护区（MPAs）和空间产权（TURFs）是两种看似矛盾的方法，被提倡作为解决渔业中常见的财产失败的方法。海洋保护区将收获限制在某些地区，但可能通过溢出效应增加外部利润。草坪激励当地的管理，但可能会受到困扰的空间外部性时，草坪的大小是不足以捕捉所有的扩散。在一个数值模型参数化的加州海洋物种，我们探讨的经济和生态影响，实行海洋保护区的草坪调节渔业。海洋保护区是否能增加或减少利润（或鱼类丰度），关键取决于草坪所有者之间已经发生的协调水平。如果协调完成，私人海洋保护区可能已经出现在一些草坪;实施额外的海洋保护区会减少利润。然而，在协调不完全的情况下，战略选址的海洋保护区可能是对基于空间产权的渔业的有效补充，增加渔业利润和丰富度。
Marine protected areas (MPAs) and spatial property rights (TURFs) are two seemingly contradictory approaches advocated as solutions to common property failures in fisheries. MPAs limit harvest to certain areas, but may enhance profits outside via spillover. TURFs incentivize local stewardship but may be plagued by spatial externalities when the TURF size is insufficient to capture all dispersal. Within a numerical model parameterized to a California marine species, we explore the economic and ecological effects of imposing MPAs on a TURF-regulated fishery. Whether MPAs can enhance or diminish profits (or fish abundance) hinges critically on the level of coordination already occurring between TURF owners. If coordination is complete, private MPAs may already emerge in some TURFs; implementing additional MPAs reduces profits. However, to the extent that coordination is incomplete, strategically sited MPAs may be an effective complement to spatial property rights-based fisheries, increasing both fishery profits and abundance.