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DNA Analysis Increases the Utility of Other Stock Identification Methods in Sockeye Fisheries Management

机译:DNA分析增加了其他种群识别方法在红鲑渔业管理中的效用

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摘要

Fraser River sockeye return mainly as 4-year olds to coastal waters in one of four run-timing groups: Early Stuart, Early Summer run, Summer run, and Late run. The run-timing groups comprise many independently spawning populations of sockeye in the Fraser River. The characteristic run-timing of these populations relative to one another enables direction of higher exploitation rates toward healthy stocks and reduced fishing on weaker ones. Scale patterns reflect different growing conditions among lakes, and these patterns have been applied successfully to distinguish among Fraser sockeye stocks and runs in the past (Henry 1961).
机译:弗雷泽河(Fraser River)红大马主要以4岁以下的四个年龄组之一返回沿海水域:斯图尔特早期,夏初运行,夏季运行和后期运行。运行时机群包括弗雷泽河中许多独立产生的红鲑种群。这些种群相互之间的特征性运行时机,可以使较高的开发率转向健康种群,并减少对较弱种群的捕捞。尺度模式反映了湖泊之间不同的生长条件,并且这些模式过去已经成功地用于区分弗雷泽红袜种群和奔跑种群(亨利1961)。

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