The study assesses the conservation and fisheries benefits of the Blue Bay Marine Park in Mauritius. It addresses the question - are the higher catch rates near the Park a result of population spillovers or of reduced fishing effort in those waters due to site-specific attributes? There is no data on catches and fishing effort prior to the reserve's establishment; a bioeconomic model is used to separate the effects of spillover and effort redistribution on catch rates in waters next to the Marine Park. The area's fish populations are replicated using a dynamic age-structured model with a Beverton-Holt recruitment function, while fishing effort is predicted using a random utility model and Random Parameter Logit estimation. The bioeconomic model is characterised by two-way feedback loops between fish stocks and the geographic redistribution of fishing effort. A comparison of fish population, biomass, and catch rates in the fisheries with and without effort redistribution, suggests that the reduced fishing effort in waters near the Park, rather than spillover, is driving the increase in observed catch rates. Travel distance, variation in catch rates, depth of water and area status (lagoon vs. off-lagoon) explain the relocation of fishing effort away from the adjacent of the marine park. The study shows how site-specific characteristics affecting fisher behaviour are important in the design of marine reserves.

该研究评估了毛里求斯蓝湾海洋公园的保护和渔业利益。它解决了一个问题-公园附近较高的捕获率是由于人口溢出或由于特定地点的属性而减少了在这些水域中的捕捞努力的结果吗？在建立保护区之前，没有有关渔获量和捕捞努力的数据；生物经济模型用于分离溢出和工作量再分配对海洋公园旁水域捕获率的影响。使用具有Beverton-Holt募集功能的动态年龄结构模型来复制该地区的鱼类种群，同时使用随机效用模型和Random Parameter Logit估计来预测捕捞量。生物经济模型的特征是鱼类种群之间的双向反馈回路和捕捞努力的地理分布。对有或没有努力重新分配的情况下渔业中鱼类种群，生物量和捕捞率的比较表明，公园附近水域减少的捕捞努力而不是溢出，正在推动观察到的捕捞率的提高。航行距离，捕获率的变化，水深和区域状态（泻湖与泻湖之间的距离）说明了将捕捞努力转移到远离海岸公园的地方。研究表明，影响渔民行为的特定地点特征在海洋保护区设计中如何重要。这表明减少在公园附近水域的捕捞努力而不是溢出，正在推动观察到的捕捞率增加。航行距离，捕获率的变化，水深和区域状态（泻湖与泻湖之间的距离）说明了将捕捞努力转移到远离海岸公园的地方。研究表明，影响渔民行为的特定地点特征在海洋保护区设计中如何重要。这表明减少在公园附近水域的捕捞努力而不是溢出，正在推动观察到的捕捞率增加。航行距离，捕获率的变化，水深和区域状态（泻湖与泻湖之间的距离）说明了将捕捞努力转移到远离海岸公园的地方。研究表明，影响渔民行为的特定地点特征在海洋保护区设计中如何重要。