Recreational Angler Surveys - Lake Silverwood, San Bernardino County - 1999-2020
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Roving creel surveys using stratified random sampling to determine angler catch rates, angler satisfaction, estimated trout harvested, total pounds harvested, and...
流动访鱼调查(Roving creel surveys)采用分层随机抽样(stratified random sampling)方法,用于测算垂钓者捕捞率、垂钓者满意度、预估鳟鱼捕捞量及总捕捞重量(单位:磅)等……
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State of California


