The value of spatial information in MPA network design
The value of spatial information in MPA network design
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DOI：
10.1073/pnas.0908057107
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发表时间：
2010-10-26
影响因子：
11.1
通讯作者：
Rosenberg, Andrew
中科院分区：
文献类型：
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作者：
Costello, Christopher;Rassweiler, Andrew;Rosenberg, Andrew
结合生态学、海洋学和经济学的空间渔业管理科学已经相当成熟。因此，最近在利用空间上明确的数据制定空间上明确的管理政策方面取得了进展，例如海洋保护区网络。然而，当数据稀疏时，空间上明确的政策变得不太可行，我们必须依赖于生硬的政策，如总允许渔获量或不精确配置的海洋保护区网络。因此，空间信息具有改变管理方法的潜力，因而具有价值。我们开发了一个总体框架，在此框架内分析空间渔业管理信息的价值，并将该框架应用于美国太平洋沿岸的几个渔业。我们发现，改进的空间信息可以显着增加渔业价值（在我们的模拟中>10%），它显着改变了有效的管理方法-从分散的努力无处不在的战略，捕鱼是有针对性的空间，与密集的收获和其他地区关闭捕鱼。利用所有现有信息，即使不完整，对管理的成功至关重要，与使用通常引用的假设（公认不正确）相比，可能使渔业价值增加一倍。
The science of spatial fisheries management, which combines ecology, oceanography, and economics, has matured significantly. As a result, there have been recent advances in exploiting spatially explicit data to develop spatially explicit management policies, such as networks of marine protected areas (MPAs). However, when data are sparse, spatially explicit policies become less viable, and we must instead rely on blunt policies such as total allowable catches or imprecisely configured networks of MPAs. Therefore, spatial information has the potential to change management approaches and thus has value. We develop a general framework within which to analyze the value of information for spatial fisheries management and apply that framework to several US Pacific coast fisheries. We find that improved spatial information can increase fishery value significantly (>10% in our simulations), and that it changes dramatically the efficient management approach-switching from diffuse effort everywhere to a strategy where fishing is spatially targeted, with some areas under intensive harvest and others closed to fishing. Using all available information, even when incomplete, is essential to management success and may as much as double fishery value relative to using (admittedly incorrect) assumptions commonly invoked.