首页> 美国政府科技报告 >Seasonal Distribution and Aggregation Behavior of Goldfish 'Carassius auratus L.' in Eastern Washington Lakes: New Technology for Control of Goldfish Populations Based on Their Behavioral Ecology
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Seasonal Distribution and Aggregation Behavior of Goldfish 'Carassius auratus L.' in Eastern Washington Lakes: New Technology for Control of Goldfish Populations Based on Their Behavioral Ecology

机译:金鱼鲫鱼的季节分布与聚集行为华盛顿东部湖泊:基于行为生态学控制金鱼种群的新技术

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Goldfish (Carassius auratus) are a problem in eastern Washington because they are becoming established in lakes that are managed as rainbow trout fisheries. Goldfish affect trout adversely and also contribute to increasing the rate of eutrophication and reducing the water quality of lakes. The objective of the present study was to develop new management technology for goldfish control. In observational, mark-recapture, and biotelemetry investigations conducted at Clear and Medical Lakes, Spokane County, Washington goldfish in both lakes form aggregations at particular locations at certain times of the year. In early spring, aggregated goldfish are extremely torpid and highly susceptible to electrofishing.

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