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• 81. [Article] Shellfish investigations progress report: no.32 (April 1, 1956 -- March 31,1959)

  This report covers a 3-year period. It includes a growth survey of gaper clams to establish normal growth patterns, a summary of a transplantation of softshell clams into Siuslaw Bay, and the results of ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigations progress report: no.32 (April 1, 1956 -- March 31,1959) Author: Oregon. Fish Commission This report covers a 3-year period. It includes a growth survey of gaper clams to establish normal growth patterns, a summary of a transplantation of softshell clams into Siuslaw Bay, and the results of crab tagging to determine movement/migration patterns. This report also has research on personal-use fisheries for razor clams, including number and rate of success of clam diggers, as well as calculations on clam wastage. Finally, it has the initial findings of exploratory dives for rock scallop and red abalone off the Oregon Coast. Title: Shellfish investigations progress report: no.32 (April 1, 1956 -- March 31,1959) Author: Oregon. Fish Commission This report covers a 3-year period. It includes a growth survey of gaper clams to establish normal growth patterns, a summary of a transplantation of softshell clams into Siuslaw Bay, and the results of crab tagging to determine movement/migration patterns. This report also has research on personal-use fisheries for razor clams, including number and rate of success of clam diggers, as well as calculations on clam wastage. Finally, it has the initial findings of exploratory dives for rock scallop and red abalone off the Oregon Coast. Close

• 82. [Article] Shellfish investigations progress report: no.35 (April 1962-March 1964)

  This progress report covers the two-year period of April 1962-March 1964 in an attempt to make the reports current. In it, you can find analysis of softshell clam populations in multiple bays, including ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigations progress report: no.35 (April 1962-March 1964) Author: Snow, C. Dale, Stewart, Nelson E., DeBen, Waldemar, Oregon. Fish Commission, Demory, Darrell This progress report covers the two-year period of April 1962-March 1964 in an attempt to make the reports current. In it, you can find analysis of softshell clam populations in multiple bays, including Siuslaw, Nehalem, and Tillamook. This report includes counts for personal-use clam diggers, as well as clam digging data, and discusses surveys of other beaches for razor clams to lessen the pressure on Clatsop Beaches. It also briefly covers work on oysters, scallops, abalone, and intertidal non-food animals. Finally, this report explores the beginning of cooperative work with California to obtain additional information of crabs on the border. Title: Shellfish investigations progress report: no.35 (April 1962-March 1964) Author: Snow, C. Dale, Stewart, Nelson E., DeBen, Waldemar, Oregon. Fish Commission, Demory, Darrell This progress report covers the two-year period of April 1962-March 1964 in an attempt to make the reports current. In it, you can find analysis of softshell clam populations in multiple bays, including Siuslaw, Nehalem, and Tillamook. This report includes counts for personal-use clam diggers, as well as clam digging data, and discusses surveys of other beaches for razor clams to lessen the pressure on Clatsop Beaches. It also briefly covers work on oysters, scallops, abalone, and intertidal non-food animals. Finally, this report explores the beginning of cooperative work with California to obtain additional information of crabs on the border. Close

• 83. [Article] Shellfish investigations progress report: no.37 (April 1, 1965-March 31, 1966)

  This report is an update of shellfish investigations from April 1965-March 1966. It has bay clam surveys results, with more detail on the Tillamook and Yaquina Bays, but includes others such as Nehalem, ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigations progress report: no.37 (April 1, 1965-March 31, 1966) Author: Snow, C. Dale, Kaiser, Alan, Reed, Paul H., DeBen, Waldemar, Neilsen, John R., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1965-March 1966. It has bay clam surveys results, with more detail on the Tillamook and Yaquina Bays, but includes others such as Nehalem, Siuslaw, Umpqua, and Nestucca. This report discusses the start of life history studies for the cockle clam, the clam for which the least information was known. It also discusses the commencement of cooperative cruises with California to study crabs, including mating behavior, shell conditions, and larvae rearing. There is a brief summary of abalone work, and the report concludes with habitat improvement and the implementation of oyster seed inspections in Oregon. Title: Shellfish investigations progress report: no.37 (April 1, 1965-March 31, 1966) Author: Snow, C. Dale, Kaiser, Alan, Reed, Paul H., DeBen, Waldemar, Neilsen, John R., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1965-March 1966. It has bay clam surveys results, with more detail on the Tillamook and Yaquina Bays, but includes others such as Nehalem, Siuslaw, Umpqua, and Nestucca. This report discusses the start of life history studies for the cockle clam, the clam for which the least information was known. It also discusses the commencement of cooperative cruises with California to study crabs, including mating behavior, shell conditions, and larvae rearing. There is a brief summary of abalone work, and the report concludes with habitat improvement and the implementation of oyster seed inspections in Oregon. Close

• 84. [Article] The relation between effort and yield in the Dungeness crab fishery

  "For State/Federal Dungeness Crab Management Program" (title page) "Surplus yield models, mark-recapture data, and length-frequency data have been used to determine how the annual catch of Dungeness crab ...

  Citation × Citation Citation Abstract Copy Title: The relation between effort and yield in the Dungeness crab fishery Author: Stewart, Nelson E., Oregon. Fish Commission, Silverthorne, Wesley "For State/Federal Dungeness Crab Management Program" (title page) "Surplus yield models, mark-recapture data, and length-frequency data have been used to determine how the annual catch of Dungeness crab in Washington, Oregon, northern California, and central California will react as fishing effort varies. Yield curves were estimated for Washington and Oregon showing the maximum sustainable yield (MSY) at effort levels below levels which now exist in those fisheries." (from the Abstract) Has extensive statistical charts and tables for Oregon, Washington and California. Concluded that Washington has "too many pots" in the fishery, that the situation in Oregon was similar to Washington, and that the California fishery was over-fished and in decline. Title: The relation between effort and yield in the Dungeness crab fishery Author: Stewart, Nelson E., Oregon. Fish Commission, Silverthorne, Wesley "For State/Federal Dungeness Crab Management Program" (title page) "Surplus yield models, mark-recapture data, and length-frequency data have been used to determine how the annual catch of Dungeness crab in Washington, Oregon, northern California, and central California will react as fishing effort varies. Yield curves were estimated for Washington and Oregon showing the maximum sustainable yield (MSY) at effort levels below levels which now exist in those fisheries." (from the Abstract) Has extensive statistical charts and tables for Oregon, Washington and California. Concluded that Washington has "too many pots" in the fishery, that the situation in Oregon was similar to Washington, and that the California fishery was over-fished and in decline. Close

• 85. [Article] Coastal Rivers Investigations Information Report 70-11: Fish in Coos Bay, Oregon, with Comments on Distribution, Temperature, and Salinity of the Estuary

  Personnel of the OFC and OGC sampled various station of Coos Bay, Oregon to define areas used by several species of fish in the bay. Students at the University of Oregon Institute of Marine Biology sampled ...

  Citation × Citation Citation Abstract Copy Title: Coastal Rivers Investigations Information Report 70-11: Fish in Coos Bay, Oregon, with Comments on Distribution, Temperature, and Salinity of the Estuary Author: Schwartz, Ed, Oregon. Fish Commission, Cummings, Ed Personnel of the OFC and OGC sampled various station of Coos Bay, Oregon to define areas used by several species of fish in the bay. Students at the University of Oregon Institute of Marine Biology sampled main channels with an otter trawl and observed animals on the tide flat. Primary interest was in the distribution of shad and striped bass, but other species dominated catches throughout the sampling period. This report contains the results and a discussion of this information, as well as information from previous reports and observations. This document also includes a table of weekly temperature mean and range at selected stations in Coos Bay for June-October 1970. Title: Coastal Rivers Investigations Information Report 70-11: Fish in Coos Bay, Oregon, with Comments on Distribution, Temperature, and Salinity of the Estuary Author: Schwartz, Ed, Oregon. Fish Commission, Cummings, Ed Personnel of the OFC and OGC sampled various station of Coos Bay, Oregon to define areas used by several species of fish in the bay. Students at the University of Oregon Institute of Marine Biology sampled main channels with an otter trawl and observed animals on the tide flat. Primary interest was in the distribution of shad and striped bass, but other species dominated catches throughout the sampling period. This report contains the results and a discussion of this information, as well as information from previous reports and observations. This document also includes a table of weekly temperature mean and range at selected stations in Coos Bay for June-October 1970. Close

• 86. [Article] Proposed dredging operations in Coos Bay and their probable affect on clam populations (areas upbay from the railroad bridge, with notes on the other disposal areas)

  In 1949, the Army Corps of Engineers dredged Coos Bay. “Despite objection of local residents, commercial clam diggers, and the Fish Commission” the Corps dumped dredging spoils on a commercially important ...

  Citation × Citation Citation Abstract Copy Title: Proposed dredging operations in Coos Bay and their probable affect on clam populations (areas upbay from the railroad bridge, with notes on the other disposal areas) Author: Tollefson, Roger, Oregon. Fish Commission, Marriage, Lowell D. In 1949, the Army Corps of Engineers dredged Coos Bay. “Despite objection of local residents, commercial clam diggers, and the Fish Commission” the Corps dumped dredging spoils on a commercially important clam bed, and destroyed much of it. “This year, with an earlier start and more data, it is hoped the clam populations can be protected.”(p.1) Proposed dredging sites were cataloged and areas where dumping should not occur were noted. The report includes hand-drawn maps. Title: Proposed dredging operations in Coos Bay and their probable affect on clam populations (areas upbay from the railroad bridge, with notes on the other disposal areas) Author: Tollefson, Roger, Oregon. Fish Commission, Marriage, Lowell D. In 1949, the Army Corps of Engineers dredged Coos Bay. “Despite objection of local residents, commercial clam diggers, and the Fish Commission” the Corps dumped dredging spoils on a commercially important clam bed, and destroyed much of it. “This year, with an earlier start and more data, it is hoped the clam populations can be protected.”(p.1) Proposed dredging sites were cataloged and areas where dumping should not occur were noted. The report includes hand-drawn maps. Close

• 87. [Article] Horseclam condition studies

  The first regulations restricting clamming in Oregon were put into effect in 1948. Initial rules barred clamming from January 1 through June 30; clammers objected that this was too restrictive and lobbied ...

  Citation × Citation Citation Abstract Copy Title: Horseclam condition studies Author: Marriage, Lowell D., Oregon. Fish Commission The first regulations restricting clamming in Oregon were put into effect in 1948. Initial rules barred clamming from January 1 through June 30; clammers objected that this was too restrictive and lobbied for more time to take shellfish. This 1949 document examines the fat gaper or horseclam, to see when its condition was at its best in Oregon, in order to determine the best times for open clamming seasons. The authors concluded that they needed more information about the winter months before they could contemplate a change. This document gives a good example of earlier natural resource management and decision-making. Includes charts and hand-drawn illustrations of clams. Title: Horseclam condition studies Author: Marriage, Lowell D., Oregon. Fish Commission The first regulations restricting clamming in Oregon were put into effect in 1948. Initial rules barred clamming from January 1 through June 30; clammers objected that this was too restrictive and lobbied for more time to take shellfish. This 1949 document examines the fat gaper or horseclam, to see when its condition was at its best in Oregon, in order to determine the best times for open clamming seasons. The authors concluded that they needed more information about the winter months before they could contemplate a change. This document gives a good example of earlier natural resource management and decision-making. Includes charts and hand-drawn illustrations of clams. Close

• 88. [Article] Shellfish investigations progress report: no.34 (April 1, 1961-March 31, 1962)

  This report is an update of shellfish investigations from April 1961-March 1962. It includes a summary of observations of clam conditions, and discusses a Netarts Bay clam mortality, which drove the Fish ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigations progress report: no.34 (April 1, 1961-March 31, 1962) Author: Snow, C. Dale, Wagner, Emery J., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1961-March 1962. It includes a summary of observations of clam conditions, and discusses a Netarts Bay clam mortality, which drove the Fish Commission to ask the Tillamook County Court to inform them of any future construction projects involving estuaries. It brings up a potential Highway 101 reroute across two clam beds, and the research that was to be done on those beds. The final significant subjects discussed are personal-use and commercial clam fisheries, including number of diggers, and general information on clams dug. Title: Shellfish investigations progress report: no.34 (April 1, 1961-March 31, 1962) Author: Snow, C. Dale, Wagner, Emery J., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1961-March 1962. It includes a summary of observations of clam conditions, and discusses a Netarts Bay clam mortality, which drove the Fish Commission to ask the Tillamook County Court to inform them of any future construction projects involving estuaries. It brings up a potential Highway 101 reroute across two clam beds, and the research that was to be done on those beds. The final significant subjects discussed are personal-use and commercial clam fisheries, including number of diggers, and general information on clams dug. Close

• 89. [Article] Shellfish investigations progress report: no.36 (April 1, 1964-March 31, 1965)

  This report is an update of shellfish investigations from April 1964 to March 1965. Inside can be found a summary of two clam mortality events. It also has the numbers of razor clams dug for sport and ...

  Citation × Citation Citation Abstract Copy Title: Shellfish investigations progress report: no.36 (April 1, 1964-March 31, 1965) Author: Snow, C. Dale, DeBen, Waldemar, Neilsen, John R., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1964 to March 1965. Inside can be found a summary of two clam mortality events. It also has the numbers of razor clams dug for sport and commercial fisheries and the results of the 1964 razor clam beach survey. This report covers oyster work, including a study on the feasibility of growing oysters in the lower Necanicum River, as well as a cooperative study to determine if the European Flat Oyster could be introduced into Oregon successfully. Finally, it summarizes long-range planning for the new intertidal non-food animal studies. Title: Shellfish investigations progress report: no.36 (April 1, 1964-March 31, 1965) Author: Snow, C. Dale, DeBen, Waldemar, Neilsen, John R., Oregon. Fish Commission, Demory, Darrell This report is an update of shellfish investigations from April 1964 to March 1965. Inside can be found a summary of two clam mortality events. It also has the numbers of razor clams dug for sport and commercial fisheries and the results of the 1964 razor clam beach survey. This report covers oyster work, including a study on the feasibility of growing oysters in the lower Necanicum River, as well as a cooperative study to determine if the European Flat Oyster could be introduced into Oregon successfully. Finally, it summarizes long-range planning for the new intertidal non-food animal studies. Close

• 90. [Article] Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : completion report, November 16, 1965 to June 30, 1971

  Closing report, November 16, 1965 to June 30, 1971.

  Citation × Citation Citation Abstract Copy Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : completion report, November 16, 1965 to June 30, 1971 Author: Gaumer, Thomas F., Oregon. Fish Commission Closing report, November 16, 1965 to June 30, 1971. Title: Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : completion report, November 16, 1965 to June 30, 1971 Author: Gaumer, Thomas F., Oregon. Fish Commission Closing report, November 16, 1965 to June 30, 1971. Close