TitleBiological characteristics of wild and hatchery steelhead trout, Salmo gairdneri, in two Oregon rivers
Publication TypeBook Chapter
Year of Publication1976
AuthorsRosenstreter, Nancy, and H. H. Wagner
Secondary TitleGenetic Studies of Anadromous Salmonids
Paginationp.2-9
Call NumberOSU Libraries: Valley SH222.O7 A38 1976, Guin SH222.O7 A38 1976
KeywordsAlsea River, North Fork, North Umpqua River, steelhead trout = Oncorhynchus mykiss
Notes

Covers the 1975/1976 year. Study to determine if fecundity, age, dates of return and body sizes of steelhead trout in the Alsea and North Umpqua Rivers have varied from historical records. Used Alsea Trout Hatchery and Winchester Dam records. Changes found: Alsea Trout Hatchery steelhead have shifted to an earlier returning run, modern Umpqua River steelhead were larger, and the number of eggs per female increased in Umpqua River steelhead.