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Following a change in stocking rate of +40% Kentucky Lake and -40% Alleyne Lake, length of age-3 rainbow trout declined by over 40 mm in Kentucky Lake and increased by over 50 mm in Alleyne Lake. Length at age 2 remained the same in Kentucky Lake but increased by 25 mm in Alleyne Lake. Higher stocking rates were associated with higher ages at harvest, but variation in stocking rate had little effect on either the length of creeled fish or CPUE. An intense fishery, which rapidly removes recruitable sized fish was suggested to be the factor that decouples CPUE and fish size from stocking rate. High variation in CPUE and length at capture among years suggests that more years of data collection and larger management perturbations will be needed if the effects of changes in management policy are to be detected.
Parkinson, Eric A.. 1990. An Evaluation of Adaptive Management and Minimal Sampling as Techniques for Optimizing Rainbow Trout Stocking Rates. Ministry of Environment. Fisheries Management Report. FMR96
Topic: Fish and Fish Habitats
Keywords: stocking rate, Kentucky Lake, Alleyne Lake, rainbow trout, management
ISSN: 0705-5390
Scientific Name: Oncorhynchus mykiss
ISBN: 0-7726-1165-3
English Name: Rainbow Trout
Other Identifier:
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