A fishery manager needs data on individual stocks to identify and understand the causes of fisheries problems, evaluate potential solutions and ensure continued support by documenting progress. The goals of management define the data needs. In the case of kokanee management, I have assumed that the goals are to maintain or increase both angler effort and the quality of the angling experience while preserving fish stocks for the future. A basic data collection program should include indices of effort, fish size and angler CPUE to provide information on the fishery, and indices of fish density, growth rate and age at maturity to document the effects of management actions on fish populations. Decisions on specific actions including fishery regulation, habitat improvement or fish culture should not be made without the information necessary to guide those decisions. The value of the fishery was used as a starting point for estimating a "reasonable" cost for a data collection program...
Parkinson, Eric A.. 1988. Long Term Data Collection of Kokanee from Large Lakes: Does it Make Sense?. Ministry of Environment. Fisheries Technical Circular. FTC83
Topic: Fish and Fish Habitats
Keywords: kokanee salmon, management, fishery, Kootenay Lake, Okanagan Lake
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