Kenneth F. Tiffan

Email: ken_tiffan@usgs.gov

M.S. in Fishery Biology, 1992 at Colorado State University. Performance of the toxicant antimycin-A in high gradient streams.

Ken Tiffan's research area is the ecology and life history of fall chinook salmon in the Columbia River basin, with an emphasis on endangered stocks in the Snake River. Current activities include a cooperative study with the U.S. Fish and Wildlife Service on the effects of summer flow augmentation on the migratory behavior and survival of threatened Snake River fall chinook salmon. Other studies include an evaluation of winter-time passage of juvenile fall chinook salmon past a Snake River dam, evaluation of the effects of high summer water temperature on subyearling chinook salmon at McNary Dam, and an assessment of chum and fall chinook salmon spawning habitat in the mainstem Columbia River below Bonneville Dam.

Representative Publications:

Tiffan, K.F., C.A. Haskell, and D.W. Rondorf. In press. Thermal exposure of juvenile fall chinook salmon migrating through a lower Snake River Reservoir. Northwest Science.

Tiffan, K.F., R.D. Garland, and D.W. Rondorf. 2002. Quantifying flow-dependent changes in subyearling fall chinook rearing habitat and stranding area using two-dimensional spatially-explicit modeling. North American Journal of Fisheries Management 22:713-726.

Tiffan, K.F., D.W. Rondorf, R.D. Garland, and P.A. Verhey. 2001. Identification of juvenile fall versus spring chinook salmon migrating through the lower Snake River based on body morphology. Transactions of the American Fisheries Society 129:1389-1395.

Tiffan, K.F., D.W. Rondorf, and P.G. Wagner. 2000. Physiological development and migratory behavior of subyearling fall chinook salmon in the Columbia River. North American Journal of Fisheries Management 20:28-40.

Mailing Address:

U.S. Geological Survey
Western Fisheries Research Center
Columbia River Research Laboratory
5501-A Cook-Underwood Road
Cook, Washington 98606-9717

Phone: 509-538-2299 x279
Fax: 509-538-2843