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Creator:: McKernan, Donald L. (Donald Lynn), 1918-1979, Johnson, Donald R., Hodges, John I., and Oregon. Fish Commission
Abstract:: Three factors were found to be significantly correlated with the fluctuations and trends in silver salmon production in Oregon. Logging was found to adversely affect the runs of salmon in later years. Exceptional winter floods seem to produce poor resulting runs. Low summer water flows also appear to produce lower...
Resource Type:: Technical Report
Full Text:: ., Washington 5, D. C. SOME FACTORS INFLUENCING THE TRENDS OF SALMON POPULATIONS IN OREGON DONALD L. MCKERNAN

Creator:: McGie, Alan, Cummings, T. Edwin, and Oregon. Fish Commission
Abstract:: This information report contains the results of a program to distribute surplus fry to streams underutilized by the natural population. It discusses the stocking and evaluation procedures, and gives the results.
Resource Type:: Technical Report
Full Text:: Coho Salmon F~ in South Coastal Streams INTRODUCTION /(~ In the fall of 1964~ returns of adult

Creator:: Morgan, Alfred R., Cleaver, Fred C. (Frederick Charles), 1916-, and Oregon. Fish Commission
Abstract:: During a tagging operation conducted in 1951 on the Alsea River, 1,142 adult silver salmon were tagged with plastic Petersen-type tags and stainless steel jaw tags. An attempt was made to determine whether tagged fish released in different apparent conditions suffered differential mortalities. Under the hypothesis that the recovery of...
Resource Type:: Technical Report
Full Text:: , Box 31A CLACKAMAS, OREGON The 1951 film River Silver Salmon Tagging Program Alfred R. Morgan and

Creator:: Marr, John C. and Oregon. Fish Commission
Abstract:: Samples, consisting of scales, length and weight measurements, and sex determinations of chum, pink, and silver salmons, were taken from the commercial catch in the Columbia River in 1914. Five hundred eighteen chum scales were examined. All fish had gone to sea early in their first year; and 70.5 percent...
Resource Type:: Technical Report
Full Text:: Richardson; the blueback (sockeye), Oncorhynchus nerka (Walbaum); the silver salmon (coho), 0. kisutch

Creator:: Gharrett, John T., Hodges, John I., and Oregon. Fish Commission
Abstract:: In spite of the progressive restrictions of the commercial river fishery during the past fifty years, the trend of the salmon populations of the coastal rivers has been downward. It is almost impossible to isolate and analyze separately the causes of this decline, and any attempt to saddle one factor...
Resource Type:: Technical Report
Full Text:: SALMON FISHERIES OF THE COASTAL RIVERS OF OREGON SOUTH OF

Creator:: Van Hyning, Jack M. and Oregon. Fish Commission
Abstract:: Reprinted from Bulletin 2 of the Pacific Marine Fisheries Commission (1951).
Resource Type:: Technical Report
Full Text:: FISH COMMISSION PORTLAND, OREGON Contribution No. 15 August, 1951 THE OCEAN SALMON TROLL FISHERY

Creator:: Korn, Lawrence, Gunsolus, Robert T., and Oregon. Fish Commission
Abstract:: "The Oregon Fish Commission received a contract from the U. S. Fish and Wildlife Service, Bureau of Commercial Fisheries, under the Saltonstall-Kennedy Act for a study to develop methods for determining the behavior of juvenile salmonids in reservoirs. The study, consisting of a literature survey and field program, was conducted...
Resource Type:: Technical Report
Full Text:: of development. In an early experiment wi coho (silver) salmon, Hoar (1951) found that fry have a

Creator:: Henry, Kenneth A. and Oregon. Fish Commission
Abstract:: Tillamook Bay chum salmon are caught commercially by gill-nets, both set and drift, and from 1928 through 1949 the landings have averaged 819,689 pounds per season. More chum salmon are caught on Tillamook Bay than on the rest of the Oregon coastal rivers combined. These fish enter the ocean only...
Resource Type:: Technical Report
Full Text:: of Oregon showing principal rivers 6 Figure 2. Annual landings of chum salmon caught by the

Creator:: Henry, Kenneth A. and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: . Length-weight relationship for female chum salmon from Tillamook Bay, Oregon, based on 311 fish ranging

Creator:: Oregon. Fish Commission
Abstract:: This document describes the life history and abundance of both the spring Chinook salmon and the Silver salmon in the Willamette River. It also goes into detail about various factors affecting Willamette salmon runs., including pollution, dams, and logging.
Resource Type:: Technical Report
Full Text:: magnitude of the sport fishery for spring chinook salmon on ·~he lower Willamette River below Oregon City

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