Global Effects of Local Human Population Density and Distance to Markets on the Condition of Coral Reef Fisheries
Global Effects of Local Human Population Density and Distance to Markets on the Condition of Coral Reef Fisheries
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DOI：
10.1111/j.1523-1739.2012.01933.x
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发表时间：
2013-06-01
影响因子：
6.3
通讯作者：
Macneil, M. Aaron
中科院分区：
文献类型：
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作者：
Cinner, Joshua E.;Graham, Nicholas A. J.;Macneil, M. Aaron
珊瑚礁渔业维持着数百万人的生计，但却受到人为活动的严重负面影响。我们对已发表的珊瑚礁鱼类生物量数据进行了系统的回顾，以探索珊瑚礁渔业状况如何与当地人口密度、珊瑚礁与市场的接近程度以及关键环境变量(包括广泛的地貌珊瑚礁类型、珊瑚礁面积和净生产力)有关。当只考虑人口密度和环境协变量时，在低人口密度下渔业条件的高度变异性导致相对较弱的解释模型。人类住区的存在或不存在、栖息地类型以及与鱼类市场的距离为珊瑚礁渔业状况提供了一个更有力的解释模型。鱼的生物量在市场周围14公里内保持相对较低的水平，然后随着珊瑚礁到市场距离的增加，生物量呈指数级增加。我们的结果表明，需要加强对市场的科学和政策关注，因为市场既是珊瑚礁渔业状况的关键驱动因素，也是解决方案的潜在来源。
Coral reef fisheries support the livelihoods of millions of people but have been severely and negatively affected by anthropogenic activities. We conducted a systematic review of published data on the biomass of coral reef fishes to explore how the condition of reef fisheries is related to the density of local human populations, proximity of the reef to markets, and key environmental variables (including broad geomorphologic reef type, reef area, and net productivity). When only population density and environmental covariates were considered, high variability in fisheries conditions at low human population densities resulted in relatively weak explanatory models. The presence or absence of human settlements, habitat type, and distance to fish markets provided a much stronger explanatory model for the condition of reef fisheries. Fish biomass remained relatively low within 14 km of markets, then biomass increased exponentially as distance from reefs to markets increased. Our results suggest the need for an increased science and policy focus on markets as both a key driver of the condition of reef fisheries and a potential source of solutions.