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Stocked rainbow trout Oncorhynchus mykiss populations in 31 lakes in the Tanana River and Upper Copper River drainages were evaluated during 2008–2010. We used two sampling schemes to provide managers with information about population length-age structure to determine if stocked fisheries were meeting management criteria and to provide basic population information to evaluate the presence of stocked fish in their expected size range. We also visually examined all captured fish for external signs of disease, parasites, and body condition (robust or thin). We compared populations in 19 lakes to management criteria for mean length and relative abundance for predetermined length categories and expected age cohorts....
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Stocked rainbow trout Oncorhynchus mykiss populations in 31 lakes in the Tanana River and Upper Copper River drainages were evaluated during 2008–2010. We used two sampling schemes to provide managers with information about population length-age structure to determine if stocked fisheries were meeting management criteria and to provide basic population information to evaluate the presence of stocked fish in their expected size range. We also visually examined all captured fish for external signs of disease, parasites, and body condition (robust or thin). We compared populations in 19 lakes to management criteria for mean length and relative abundance for predetermined length categories and expected age cohorts....
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