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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Biocomplexity and fisheries sustainability
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Biocomplexity and fisheries sustainability

机译：生物复杂性和渔业可持续性

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摘要

A classic example of a sustainable fishery is that targeting sockeye salmon in Bristol Bay, Alaska, where record catches have occurred during the last 20 years. The stock complex is an amalgamation of several hundred discrete spawning populations. Structured within lake systems, individual populations display diverse life history characteristics and local adaptations to the variation in spawning and rearing habitats. This biocomplexity has enabled the aggregate of populations to sustain its productivity despite major changes in climatic conditions affecting the freshwater and marine environments during the last century. Different geographic and life history components that were minor producers during one climatic regime have dominated during others, emphasizing that the biocomplexity of fish stocks is critical for maintaining their resilience to environmental change. [References: 37]
机译：可持续渔业的一个典型例子是，针对阿拉斯加布里斯托尔湾的红鲑鱼，在过去的20年中，这里有创纪录的捕捞量。畜群是数百个离散产卵种群的合并。在湖泊系统中结构化，个体种群显示出不同的生活史特征和对产卵和饲养栖息地变化的局部适应。尽管上个世纪影响着淡水和海洋环境的气候条件发生了重大变化，但这种生物复杂性使总人口得以维持其生产力。在一种气候制度中，作为次要生产者的不同地理和生活史成分在其他气候形式中占主导地位，强调鱼类种群的生物复杂性对于维持其对环境变化的适应力至关重要。 [参考：37]

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