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Comparison of outcomes of permanently closed and periodically harvested coral reef reserves

机译：比较永久关闭和定期收获的珊瑚礁保护区的结果

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In many areas of the developing world, the establishment of permanent marine reserves is inhibited by cultural norms or socioeconomic pressures. Community conserved areas that are periodically harvested are increasingly being implemented as fisheries management tools, but few researchers have empirically compared them with permanently closed reserves. We used a hierarchal control-impact experimental design to compare the abundance and biomass of reef fishes, invertebrates, and substrate composition in periodically harvested and permanent reserves and in openly fished (control sites) of the South Pacific island country of Vanuatu. Fished species had significantly higher biomass in periodically harvested reserves than in adjacent openly fished areas. We did not detect differences in substratum composition between permanent reserves and openly fished areas or between permanent reserves and periodically harvested reserves. Giant clams (tridacnids) and top shells (Trochus niloticus) were vulnerable to periodic harvest, and we suggest that for adequate management of these species, periodically harvested community conservation areas be used in conjunction with other management strategies. Periodic harvest within reserves is an example of adaptive and flexible management that may meet conservation goals and that is suited to the social, economic, and cultural contexts of many coastal communities in the developing world.
机译：在发展中国家的许多地区，建立永久性海洋保护区受到文化规范或社会经济压力的抑制。定期收获的社区保护区正越来越多地被用作渔业管理工具，但很少有研究人员凭经验将它们与永久封闭的保护区进行比较。我们使用了分层控制影响实验设计，比较了定期捕捞和永久储备以及南太平洋岛国瓦努阿图的公开捕捞（控制场所）中礁鱼，无脊椎动物和底物组成的丰度和生物量。与相邻的露天捕鱼区相比，定期收获的保护区中鱼类的生物量明显更高。我们没有发现永久性保护区与露天捕鱼区之间或永久性保护区与定期收获的保护区之间的基质组成差异。巨蛤（tridacnids）和顶壳（Trochus niloticus）容易受到定期收获的影响，我们建议为了对这些物种进行适当管理，应将定期收获的社区保护区与其他管理策略结合起来使用。保护区内的定期收获是适应性和灵活管理的一个例子，可以实现保护目标，并适合发展中国家许多沿海社区的社会，经济和文化背景。

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