Title | Biological characteristics of wild and hatchery steelhead trout, Salmo gairdneri, in two Oregon rivers |
Publication Type | Book Chapter |
Year of Publication | 1976 |
Authors | Rosenstreter, Nancy, and H. H. Wagner |
Secondary Title | Genetic Studies of Anadromous Salmonids |
Pagination | p.2-9 |
Call Number | OSU Libraries: Valley SH222.O7 A38 1976, Guin SH222.O7 A38 1976 |
Keywords | Alsea 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. |