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• 41. [Article] Soft-shell crab season and regulation review

  The new closed season for commercial crab fishing in Oregon went into effect in 1948. This 1949 document summarizes the results of the 1948 closure and details research and procedures being used to refine ...

  Citation × Citation Citation Abstract Copy Title: Soft-shell crab season and regulation review Author: Marriage, Lowell D., Oregon. Fish Commission, Tollefson, Roger The new closed season for commercial crab fishing in Oregon went into effect in 1948. This 1949 document summarizes the results of the 1948 closure and details research and procedures being used to refine the closing dates. This document provides a good look at earlier methods of natural resource management and decision-making. Title: Soft-shell crab season and regulation review Author: Marriage, Lowell D., Oregon. Fish Commission, Tollefson, Roger The new closed season for commercial crab fishing in Oregon went into effect in 1948. This 1949 document summarizes the results of the 1948 closure and details research and procedures being used to refine the closing dates. This document provides a good look at earlier methods of natural resource management and decision-making. Close

• 42. [Article] Offshore crab shedding - 1948

  Much of this report is concerned with the perennial question of when crabs are in the soft-shell state, as opposed to when the commercial fishing season should be open. Other topics covered include molted ...

  Citation × Citation Citation Abstract Copy Title: Offshore crab shedding - 1948 Author: Marriage, Lowell D., Oregon. Fish Commission, Tollefson, Roger Much of this report is concerned with the perennial question of when crabs are in the soft-shell state, as opposed to when the commercial fishing season should be open. Other topics covered include molted crab shells, methods of measuring crab shells to determine if they meet size limits, early growth studies of Dungeness crabs, and egg sampling of female crabs. The report also includes a report on cockle crab growth studies. Title: Offshore crab shedding - 1948 Author: Marriage, Lowell D., Oregon. Fish Commission, Tollefson, Roger Much of this report is concerned with the perennial question of when crabs are in the soft-shell state, as opposed to when the commercial fishing season should be open. Other topics covered include molted crab shells, methods of measuring crab shells to determine if they meet size limits, early growth studies of Dungeness crabs, and egg sampling of female crabs. The report also includes a report on cockle crab growth studies. Close

• 43. [Article] Crab fishery and soft-shell status – Area I: North of Cascade Head, August 15-August 20, 1948

  Gives crab boats and number of pots fished for Astoria and Tillamook Bay. Gives number of crab pots being fished for given localities. Gives per cent of soft-shelled crabs by local areas.

  Citation × Citation Citation Abstract Copy Title: Crab fishery and soft-shell status – Area I: North of Cascade Head, August 15-August 20, 1948 Author: Tollefson, Roger, Oregon. Fish Commission, Marriage, Lowell D. Gives crab boats and number of pots fished for Astoria and Tillamook Bay. Gives number of crab pots being fished for given localities. Gives per cent of soft-shelled crabs by local areas. Title: Crab fishery and soft-shell status – Area I: North of Cascade Head, August 15-August 20, 1948 Author: Tollefson, Roger, Oregon. Fish Commission, Marriage, Lowell D. Gives crab boats and number of pots fished for Astoria and Tillamook Bay. Gives number of crab pots being fished for given localities. Gives per cent of soft-shelled crabs by local areas. Close

• 44. [Article] Observations on horseclams of the 1949 set

  “An excellent opportunity was afforded to observe growth of horseclams of the one-year-plus class when it was discovered April 7, 1950, that a newly formed mud flat in Yaquina Bay, formed September and ...

  Citation × Citation Citation Abstract Copy Title: Observations on horseclams of the 1949 set Author: Oregon. Fish Commission “An excellent opportunity was afforded to observe growth of horseclams of the one-year-plus class when it was discovered April 7, 1950, that a newly formed mud flat in Yaquina Bay, formed September and October 1948 by fill from dredging operations, had thousands of young horseclams embedded in it.” (p.1) Growth and condition were studied. Continues a study on fat gapers (horseclams), “Horseclam condition studies” (Shellfish investigation progress report 18), to determine optimal timing of open and closed clamming seasons. Title: Observations on horseclams of the 1949 set Author: Oregon. Fish Commission “An excellent opportunity was afforded to observe growth of horseclams of the one-year-plus class when it was discovered April 7, 1950, that a newly formed mud flat in Yaquina Bay, formed September and October 1948 by fill from dredging operations, had thousands of young horseclams embedded in it.” (p.1) Growth and condition were studied. Continues a study on fat gapers (horseclams), “Horseclam condition studies” (Shellfish investigation progress report 18), to determine optimal timing of open and closed clamming seasons. Close

• 45. [Article] Shellfish investigation progress report: no.29 (Jan. 1-May 31, 1954)

  This report covers a range of information about shellfish, including the populations of clams in Yaquina & Tillamook bays, the Pacific Oyster mortality event in Coos bay (with a hand-drawn map of Coos ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigation progress report: no.29 (Jan. 1-May 31, 1954) Author: Oregon. Fish Commission This report covers a range of information about shellfish, including the populations of clams in Yaquina & Tillamook bays, the Pacific Oyster mortality event in Coos bay (with a hand-drawn map of Coos Bay), testing of different crab baits, and different statistics about the Coquille River Crab Fishery. This report also covers an Algacide toxicity test, the preliminary work on a kelp survey, and a thermograph of water temperatures in Yaquina Bay for May and June of 1954. Title: Shellfish investigation progress report: no.29 (Jan. 1-May 31, 1954) Author: Oregon. Fish Commission This report covers a range of information about shellfish, including the populations of clams in Yaquina & Tillamook bays, the Pacific Oyster mortality event in Coos bay (with a hand-drawn map of Coos Bay), testing of different crab baits, and different statistics about the Coquille River Crab Fishery. This report also covers an Algacide toxicity test, the preliminary work on a kelp survey, and a thermograph of water temperatures in Yaquina Bay for May and June of 1954. Close

• 46. [Article] Proposed regulations of the clam fishery of the State of Oregon

  By 1948, Oregon’s clamming regulations spilled over into fifty-one different sections of administrative rules. They were “cumbersome” at best. The previous legislative session had repealed many outdated ...

  Citation × Citation Citation Abstract Copy Title: Proposed regulations of the clam fishery of the State of Oregon Author: Tollefson, Roger, Oregon. Fish Commission By 1948, Oregon’s clamming regulations spilled over into fifty-one different sections of administrative rules. They were “cumbersome” at best. The previous legislative session had repealed many outdated laws but kept them in effect until the Fish Commission could study the issue and propose new regulations. The Commission had been studying the matter for a little more than a year in Tillamook, Yaquina and Coos bays and in this document gives its first recommendations, primarily focusing on the gaper, or “horse,” clam fishery. Title: Proposed regulations of the clam fishery of the State of Oregon Author: Tollefson, Roger, Oregon. Fish Commission By 1948, Oregon’s clamming regulations spilled over into fifty-one different sections of administrative rules. They were “cumbersome” at best. The previous legislative session had repealed many outdated laws but kept them in effect until the Fish Commission could study the issue and propose new regulations. The Commission had been studying the matter for a little more than a year in Tillamook, Yaquina and Coos bays and in this document gives its first recommendations, primarily focusing on the gaper, or “horse,” clam fishery. Close

• 47. [Article] Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival,1968/1969

  "Objectives during the July 1, 1968, to June 30. 1969, project period were to determine the following: 1. The effects of diet concentration on survival and growth. 2. The effects of crab larval concentration ...

  Citation × Citation Citation Abstract Copy Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival,1968/1969 Author: Gaumer, Thomas F., Oregon. Fish Commission "Objectives during the July 1, 1968, to June 30. 1969, project period were to determine the following: 1. The effects of diet concentration on survival and growth. 2. The effects of crab larval concentration on survival. 3. The effects of diet concentration on cannibalism. 4. The effects of light intensity on the swimming behavior of crab larvae. 5. The effects of water current on the swimming behavior of crab larvae." (from the Introduction) Includes graphs, charts, b/w photographs of equipment. Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival,1968/1969 Author: Gaumer, Thomas F., Oregon. Fish Commission "Objectives during the July 1, 1968, to June 30. 1969, project period were to determine the following: 1. The effects of diet concentration on survival and growth. 2. The effects of crab larval concentration on survival. 3. The effects of diet concentration on cannibalism. 4. The effects of light intensity on the swimming behavior of crab larvae. 5. The effects of water current on the swimming behavior of crab larvae." (from the Introduction) Includes graphs, charts, b/w photographs of equipment. Close

• 48. [Article] Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : July 1, 1967 to June 30, 1968

  "Culture methods for Dungeness crab larvae and the effects of temperature and salinity on larval survival and growth were covered in previous progress reports (Reed, 1966 and 1967). This report covers ...

  Citation × Citation Citation Abstract Copy Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : July 1, 1967 to June 30, 1968 Author: Reed, Paul H., Oregon. Fish Commission "Culture methods for Dungeness crab larvae and the effects of temperature and salinity on larval survival and growth were covered in previous progress reports (Reed, 1966 and 1967). This report covers studies conducted from July 1,1967, through June 30, 1968 to determine the effects of various laboratory diets and diet concentrations on survival and growth of Dungeness crab larvae." (Introduction) Includes b/w photomicrographs. Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : July 1, 1967 to June 30, 1968 Author: Reed, Paul H., Oregon. Fish Commission "Culture methods for Dungeness crab larvae and the effects of temperature and salinity on larval survival and growth were covered in previous progress reports (Reed, 1966 and 1967). This report covers studies conducted from July 1,1967, through June 30, 1968 to determine the effects of various laboratory diets and diet concentrations on survival and growth of Dungeness crab larvae." (Introduction) Includes b/w photomicrographs. Close

• 49. [Article] Effects of underwater explosions on Dungeness crabs (Cancer magister) off the Alsea River, Sept. 7, 1962

  In the summer of 1961, oil and gas companies began seismic explorations offshore on the Oregon coast. These explorations inspired interest in the effects of explosions on marine life. This document gives ...

  Citation × Citation Citation Abstract Copy Title: Effects of underwater explosions on Dungeness crabs (Cancer magister) off the Alsea River, Sept. 7, 1962 Author: Oregon. Fish Commission In the summer of 1961, oil and gas companies began seismic explorations offshore on the Oregon coast. These explorations inspired interest in the effects of explosions on marine life. This document gives the results of two series of tests on the effects of underwater explosions on Dungeness crabs held in crab pots near the detonations. Title: Effects of underwater explosions on Dungeness crabs (Cancer magister) off the Alsea River, Sept. 7, 1962 Author: Oregon. Fish Commission In the summer of 1961, oil and gas companies began seismic explorations offshore on the Oregon coast. These explorations inspired interest in the effects of explosions on marine life. This document gives the results of two series of tests on the effects of underwater explosions on Dungeness crabs held in crab pots near the detonations. Close

• 50. [Article] A report on the status of the razor clam regulations on Clatsop Beach

  The purpose of this report is to present some information which has been collected on the razor clam fisheries of Clatsop County beaches during the past several years. Topics which will be discussed are: ...

  Citation × Citation Citation Abstract Copy Title: A report on the status of the razor clam regulations on Clatsop Beach Author: Oregon. Fish Commission, Ayres, Robert J. The purpose of this report is to present some information which has been collected on the razor clam fisheries of Clatsop County beaches during the past several years. Topics which will be discussed are: (1) a brief resume' of the investigation, regulations, and catches prior to September 1954; (2) regulation changes imposed in September 1954 and a brief discussion of the reasons for these changes; (3) a discussion of the effect these regulation changes have had on the harvest and; (4) a discussion of some regulation changes which have been suggested. (from the Introduction) Title: A report on the status of the razor clam regulations on Clatsop Beach Author: Oregon. Fish Commission, Ayres, Robert J. The purpose of this report is to present some information which has been collected on the razor clam fisheries of Clatsop County beaches during the past several years. Topics which will be discussed are: (1) a brief resume' of the investigation, regulations, and catches prior to September 1954; (2) regulation changes imposed in September 1954 and a brief discussion of the reasons for these changes; (3) a discussion of the effect these regulation changes have had on the harvest and; (4) a discussion of some regulation changes which have been suggested. (from the Introduction) Close