Hal C. Hansel

Email: hal_hansel@usgs.gov

B.S. Fishery Resources, 1978, University of Idaho. Hal began conducting research at the Columbia River Research Laboratory in 1982. After a 6-yr hiatus to obtain a teaching certificate and study the evolutionary ecology of swallowtail butterflies he returned to the Lab in 1993. His research specialties include food habits, age, and growth; predator-prey interactions; radio telemetry; and juvenile salmonid passage behavior at lower Columbia River dams. Hal is currently team leader of the data analysis team for large river studies conducted by the Physilogical Ecology Group.

Representative Publications:

Hansel, H.C., S.D. Duke, P.T. Lofy, and G.A. Gray. 1988. Use of diagnostic bones to identify and estimate original lengths of ingested prey fishes. Transactions of the American Fisheries Society 117:55-62.

Poe, T.P., H.C. Hansel, S.Vigg, D.E. Palmer, and L.A. Prendergast. 1991. Feeding of predaceous Fishes on out-migrating juvenile salmonids in John Day Reservoir, Columbia River. Transactions of the American Fisheries Society 120:405-420.

Vigg,S., T.P. Poe, L.A. Prendergast, and H.C. Hansel. 1991. Rates of consumption of juvenile salmonids and alternative prey fish by northern squawfish, walleyes, smallmouth bass, and channel catfish in John Day Reservoir, Columbia River. Transactions of the American Fisheries Society 120:421-438.

Martinelli, T. L., H. C. Hansel, and R. S. Shively. 1998. Growth and physiological responses to surgical and gastric radio transmitter implantation techniques in subyearling chinook salmon. Hydrobiologia 371/372: 79-87.

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
Fax: 509-538-2843