Dramatically reduced numbers of kokanee (Oncorhynchus nerka) in Okanagan Lake during the last two decades recently led to the formation of a multidisciplinary task group, the Okanagan Lake Action Plan (OLAP), whose main goal is to rebuild and maintain the biodiversity of kokanee stocks and other indigenous fish species in Okanagan Lake. A major strategy under development involves reducing Mysis relicta populations through harvesting to decrease competition with kokanee for their common food source - zooplankton. Currently, there are no known methods of controlling Mysis populations, but basic measurements of life history parameters and research on pheromones and behavioural cues may produce some practical solutions. To aid in this research, baseline limnological sampling began in 1996, and the once per year mysid sampling was expanded to a monthly sampling regimen. In 1996, Kalamalka Lake was added to the sampling program for comparative purposes because it contains Mysis but has a relatively healthy kokanee
McEachern, Laurie. 1998. Seasonal Variation in Zooplankton Communities Okanagan and Kalamalka Lake, 1966 - 1998. BC Ministry of Environment
Keywords: Okanagan Lake, Kalamalka Lake
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