columbia river basin fish and wildlife program annual ...

I. COMPLETED PROJECTSNone.II. FY 1990 ONGOING PROJECTSPROJECTNUMBER TIT1 E PROJECT STATUS85-339 Kokanee Stock Status andContribution of Cabinet GorgeHatchery, Lake Pend Oreille,Idaho - IDFGProiect Officer: F. Holmmectives: Determine thecontribution of the CabinetGorge Hatchery to the kokaneefishery in Lake Pend Oreille.Detailed objectives aredescribed in the Project'sannual reports.Date initiated: 1985 1. 1991: Water will be requested for flushingflows in July and August 1991. Zooplankton dataResults/Conclusions: Kokanee egg takes will be analyzed and results compared to previousfor the hatchery have been increasing years' data and related changes in kokanee densitieseach year. 12 million eggs were taken and growth rates in order to define carryingin 1990. Hatchery water problems are capacity better. Some plants will be made, usingbeing solved; flushing flows from Cabinet a U.S. Navy barge. Creel census done in 1990 willGorge Dam are required to get fingerlings be used to estimate contribution of Cabinet Gorgedown the Clark Fork River into Lake Pend Hatchery.Oreille. IDFG continues to work withWashington Water Power on this. 2. Project scheduled for completion in 1991.The current kokanee population in PendOreille is estimated to be 10.2 million,compared to 4.3 million in 1986. Theincrease is a direct result of the hatcherycontribution. Over 100,000 kokaneewere caught in 1989.III. NEW PROJECTSNone.