首页> 美国政府科技报告 >Sportfishing Catch and Effort from the Michigan Waters of Lakes Michigan, Huron,Erie, and Superior, and Their Important Tributary Streams, April 1, 1991-March 31, 1992
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Sportfishing Catch and Effort from the Michigan Waters of Lakes Michigan, Huron,Erie, and Superior, and Their Important Tributary Streams, April 1, 1991-March 31, 1992

机译:1992年4月1日至1992年3月31日密歇根湖,休伦湖,伊利河和高级河流及其重要支流的密歇根水域的捕鱼和努力

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Sportfishing catch and effort were sampled on lakes Michigan, Huron, Erie, andSuperior from April 1, 1991 through March 31, 1992. The objective of the creel monitoring program is to obtain a continuous record of sport catch, catch rates, and catch composition for the Great Lakes and important anadromous river fisheries. Over 75,000 anglers were interviewed at the completion of their fishing trips. Catch and effort estimates were calculated by month for all areas sampled.

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