Recent and Future Demand for Walleye in North America
Recent and Future Demand for Walleye in North America
复制标题
北美近期和未来对白眼鱼的需求
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
G. Moodie
中科院分区：
文献类型：
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作者：
R. Fenton;J. Mathias;G. Moodie
白眼放养是北美许多渔业机构的一项主要计划；32个州、联邦和省级机构报告了1986年至1991年期间放养白眼鱼的情况。本研究描述了在此期间对实施鱼种放养计划的29个机构的调查。在此期间，每个机构每年平均放养的鱼种数量为3250万条。按照每厘米2美分的中位数成本和5.1厘米的鱼种大小计算，在此期间生产鱼种的所有机构的业务支出总额为1 900万美元。放养的主要目的是恢复或补充现有的白眼鱼种群或建立新的自我维持的种群。除非受到资金限制的限制，否则1996-2000年期间的库存可能会大量增加。
Abstract Walleye stocking is a major program of many fisheries agencies in North America; 32 state, federal, and provincial agencies reported stocking walleye between 1986 and 1991. This study describes a survey of 29 agencies that operated fingerling stocking programs during this period. The average number of fingerlings stocked annually by each agency during this time was 32.5 million fish. Based on a median cost of 2 cents per cm and a fish size of 5.1 cm, operating expenditures for all agencies producing fingerlings during this period totaled US$19 million. The primary purpose of stocking was to rehabilitate or supplement existing walleye populations or to establish new self-sustaining populations. Future stocking during 1996–2000 is likely to increase substantially unless restricted by funding constraints.