Project F-82-R Final Report The results of a study to understand the ecological requirements of brown trout and determine the effects of water development and land use on fish populations in the Deschutes River. Abundance, distribution, survival, age, growth, fecundity, food, migrations and ecological relationships to other species were all...
Tuberculosis in salmonoid fishes was first observed in the 1952 run of fall chinook salmon (Oncorhynchus tshawytscha) returning to the Bonneville Hatchery of the Oregon Fish Commission. In the studies reported here, tuberculosis was found not only in adult spring chinook but in silver salmon (0. kisutch), blueback salmon (0....
Mimeographed copy of a report, presumably to the Oregon State Game Commission. Includes maps and original b+w photographs of Rogue River dams, fishways, and fishing in the late 1920s. The author was extremely frank about the issues of the day, particularly law enforcement issues.
Ages were determined for 65 fish from the 1947 run and for 287 fish from the 1949 run. In 1947 the percentage composition by age was as follows: 32.3 percent 3-year-old fish, 66.2 percent 4-year-old fish, and 1.5 percent 5-year-old fish. An approximate 95 percent confidence interval for the true...
These short reports are intended to inform the public, fishing industry, sportsmen, and fisheries scientists of research conducted by the Fish Commission. Reports will be published from time to time as studies are sufficiently complete. Most of the reports provide biological evidence upon which measures are based to enhance and...
.................................................................. Charleston
ROBERT W. SCHONING
State Fisheries Director
TABLE OF CONTENTS
Page
Analysis of Average
This is an exhibit made by the Oregon Department of Fish and Wildlife before a meeting of the Oregon Fish and Wildlife Commission. It concerns the need for a uniform system of identifying crab pot buoys to help law enforcement.