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• 1. [Article] Oregon coastal salmon and steelhead tagging programs

  Part I. To aid in the management of the Tillamook Bay commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1953. General migration behavior, the minimum ...

  Citation × Citation Citation Abstract Copy Title: Oregon coastal salmon and steelhead tagging programs Author: Henry, Kenneth A., Morgan, Alfred R. Part I. To aid in the management of the Tillamook Bay commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1953. General migration behavior, the minimum length of time the fish remained in the fishery, population sizes, and fishing mortalities were determined from this study. Part II. To aid in the management of the Siletz River commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1954. General migration behavior, the minimum length of time fish remained in the fishery, population estimates, and fishing mortalities were determined. Title: Oregon coastal salmon and steelhead tagging programs Author: Henry, Kenneth A., Morgan, Alfred R. Part I. To aid in the management of the Tillamook Bay commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1953. General migration behavior, the minimum length of time the fish remained in the fishery, population sizes, and fishing mortalities were determined from this study. Part II. To aid in the management of the Siletz River commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1954. General migration behavior, the minimum length of time fish remained in the fishery, population estimates, and fishing mortalities were determined. Close

• 2. [Article] The effects on salmon populations of the partial elimination of fixed fishing gear on the Columbia River in 1935

  1. Six major types of commercial gear have been used to take salmon and steelhead on the Columbia River; namely, gill nets, set nets, seines, traps, fish wheels and dip nets. 2. The five important commercial ...

  Citation × Citation Citation Abstract Copy Title: The effects on salmon populations of the partial elimination of fixed fishing gear on the Columbia River in 1935 Author: Johnson, Donald R., Chapman, Wilbert McLeod, 1910-1970, Oregon. Fish Commission, Schoning, Robert W. 1. Six major types of commercial gear have been used to take salmon and steelhead on the Columbia River; namely, gill nets, set nets, seines, traps, fish wheels and dip nets. 2. The five important commercial species in the Columbia River are chinook, silver, blueback and chum salmon and steelhead trout. 3. In 1927 fish wheels were eliminated in Oregon. In 1935 fish wheels, traps, seines and set nets were eliminated in Washington. 4. The effect of the gear change in Washington in 1935 has been to increase the take in other gears, while the previous trend of total landings has not changed appreciably. 5. There is no conclusive evidence that the elimination of fixed gear in Washington increased the escapement of salmon and steelhead. 6. There is no conclusive evidence that any gear is injurious to the run except by subtracting fish from the run. 7. Measures designed to increase the escapement should apply to all gears and cover the entire life history of each species. Title: The effects on salmon populations of the partial elimination of fixed fishing gear on the Columbia River in 1935 Author: Johnson, Donald R., Chapman, Wilbert McLeod, 1910-1970, Oregon. Fish Commission, Schoning, Robert W. 1. Six major types of commercial gear have been used to take salmon and steelhead on the Columbia River; namely, gill nets, set nets, seines, traps, fish wheels and dip nets. 2. The five important commercial species in the Columbia River are chinook, silver, blueback and chum salmon and steelhead trout. 3. In 1927 fish wheels were eliminated in Oregon. In 1935 fish wheels, traps, seines and set nets were eliminated in Washington. 4. The effect of the gear change in Washington in 1935 has been to increase the take in other gears, while the previous trend of total landings has not changed appreciably. 5. There is no conclusive evidence that the elimination of fixed gear in Washington increased the escapement of salmon and steelhead. 6. There is no conclusive evidence that any gear is injurious to the run except by subtracting fish from the run. 7. Measures designed to increase the escapement should apply to all gears and cover the entire life history of each species. Close

• 3. [Article] The Nehalem Estuary

  Citation × Citation Citation Abstract Copy Title: The Nehalem Estuary Title: The Nehalem Estuary Close