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• 1. [Article] Oyster mortality study : annual progress report, 1967/1968

  "Objectives of Oregon's Oyster Mortality Study from July 1, 1967-March 31, 1968, were: (1) to monitor oyster mortalities to detect a possible increase in mortality rate, (2) to collect hydrographic data ...

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study : annual progress report, 1967/1968 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's Oyster Mortality Study from July 1, 1967-March 31, 1968, were: (1) to monitor oyster mortalities to detect a possible increase in mortality rate, (2) to collect hydrographic data for comparison with data from areas where high oyster mortalities occur, and (3) to furnish oysters from a relatively mortality-free area to the University of Washington for histological examination and comparison to oysters from high-mortality areas." (Introduction) Title: Oyster mortality study : annual progress report, 1967/1968 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's Oyster Mortality Study from July 1, 1967-March 31, 1968, were: (1) to monitor oyster mortalities to detect a possible increase in mortality rate, (2) to collect hydrographic data for comparison with data from areas where high oyster mortalities occur, and (3) to furnish oysters from a relatively mortality-free area to the University of Washington for histological examination and comparison to oysters from high-mortality areas." (Introduction) Close

• 2. [Article] Oyster mortality study : annual progress report, 1968/1969

  "Objectives of Oregon's Oyster Mortality study for the year ending March 1969 were similar to those of the first 2 years of the program: (1) to monitor oyster mortality in Yaquina, Tillamook and Coos bays, ...

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study : annual progress report, 1968/1969 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's Oyster Mortality study for the year ending March 1969 were similar to those of the first 2 years of the program: (1) to monitor oyster mortality in Yaquina, Tillamook and Coos bays, (2) to collect hydrographic data in Yaquina Bay and (3) to furnish oysters to the University of Washington for comparative histological examination. Additional work was done on the seasonal growth of Pacific oysters, the survival and growth of native oysters from spat and low salinity tolerance of adult native oysters." (Introduction) Title: Oyster mortality study : annual progress report, 1968/1969 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's Oyster Mortality study for the year ending March 1969 were similar to those of the first 2 years of the program: (1) to monitor oyster mortality in Yaquina, Tillamook and Coos bays, (2) to collect hydrographic data in Yaquina Bay and (3) to furnish oysters to the University of Washington for comparative histological examination. Additional work was done on the seasonal growth of Pacific oysters, the survival and growth of native oysters from spat and low salinity tolerance of adult native oysters." (Introduction) Close

• 3. [Article] Oyster mortality study : annual report, 1970/1971

  Covers: July 1, 1970-June 30, 1971.

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study : annual report, 1970/1971 Author: United States. Fish and Wildlife Service. National Marine Fisheries Service, Oregon. Fish Commission, Gibson, Gary G. Covers: July 1, 1970-June 30, 1971. Title: Oyster mortality study : annual report, 1970/1971 Author: United States. Fish and Wildlife Service. National Marine Fisheries Service, Oregon. Fish Commission, Gibson, Gary G. Covers: July 1, 1970-June 30, 1971. Close

• 4. [Article] Oyster mortality study, 1966/1967 : hydrographic data for Yaquina, Coos and Tillamook Bays

  Accompanies Oyster Mortality Study, 1966/1967 report. "Tables 1 through 5 give salinity, temperature, dissolved oxygen, turbidity, and pH data for Yaquina Bay while Table 6 gives temperature and salinity ...

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study, 1966/1967 : hydrographic data for Yaquina, Coos and Tillamook Bays Author: Snow, C. Dale, United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. Accompanies Oyster Mortality Study, 1966/1967 report. "Tables 1 through 5 give salinity, temperature, dissolved oxygen, turbidity, and pH data for Yaquina Bay while Table 6 gives temperature and salinity for Tillamook and Coos bays." "This information appears in the quarterly and annual reports as either mean values or ranges, but is presented in the following tables as collected. It is hoped that this information can be used for comparison in areas where high oyster mortalities occur." (from the Introduction) Title: Oyster mortality study, 1966/1967 : hydrographic data for Yaquina, Coos and Tillamook Bays Author: Snow, C. Dale, United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. Accompanies Oyster Mortality Study, 1966/1967 report. "Tables 1 through 5 give salinity, temperature, dissolved oxygen, turbidity, and pH data for Yaquina Bay while Table 6 gives temperature and salinity for Tillamook and Coos bays." "This information appears in the quarterly and annual reports as either mean values or ranges, but is presented in the following tables as collected. It is hoped that this information can be used for comparison in areas where high oyster mortalities occur." (from the Introduction) Close

• 5. [Article] Oyster mortality study : annual report, 1969/1970

  "Objectives of Oregon's oyster mortality study for the past year included monitoring oyster mortality in Yaquina, Tillamook, and Coos bays, obtaining hydrographic data in Yaquina Bay; and furnishing oysters ...

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study : annual report, 1969/1970 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's oyster mortality study for the past year included monitoring oyster mortality in Yaquina, Tillamook, and Coos bays, obtaining hydrographic data in Yaquina Bay; and furnishing oysters to the University of Washington and the Bureau of Commercial Fisheries (BCF) in Oxford, Maryland, for histological examination. Other activities included (1) determining seasonal growth of Pacific oysters in Yaquina Bay, (2) cooperating with the BCF Oxford laboratory on a study of the neoplastic disease in native oysters, Ostrea lurida, and (3) obtaining information on the longevity of Pacific oysters, Crassostrea gigas." (Introduction) During the study year, 8.6% of Pacific oysters in Yaquina Bay and 26.5% of the native Olympia oysters there died. Title: Oyster mortality study : annual report, 1969/1970 Author: United States. Fish and Wildlife Service. Bureau of Commercial Fisheries, Oregon. Fish Commission, Gibson, Gary G. "Objectives of Oregon's oyster mortality study for the past year included monitoring oyster mortality in Yaquina, Tillamook, and Coos bays, obtaining hydrographic data in Yaquina Bay; and furnishing oysters to the University of Washington and the Bureau of Commercial Fisheries (BCF) in Oxford, Maryland, for histological examination. Other activities included (1) determining seasonal growth of Pacific oysters in Yaquina Bay, (2) cooperating with the BCF Oxford laboratory on a study of the neoplastic disease in native oysters, Ostrea lurida, and (3) obtaining information on the longevity of Pacific oysters, Crassostrea gigas." (Introduction) During the study year, 8.6% of Pacific oysters in Yaquina Bay and 26.5% of the native Olympia oysters there died. Close

• 6. [Article] Clam-oyster-abalone larval rearing : annual report

  Reports on studies of spawning and larval rearing of Manila littleneck clams, native littleneck clams, butter clams and gaper clams, including field work. "Field studies comparing growth and survival of ...

  Citation × Citation Citation Abstract Copy Title: Clam-oyster-abalone larval rearing : annual report Author: United States. National Marine Fisheries Service, Oregon. Fish Commission, Gibson, Gary G., Lukas, Gerald T. Reports on studies of spawning and larval rearing of Manila littleneck clams, native littleneck clams, butter clams and gaper clams, including field work. "Field studies comparing growth and survival of laboratory-reared and imported Pacific and Kumamoto oysters were completed. We continued studies comparing various methods of oyster culture in Yaquina Bay. Winter survival of laboratory-reared oyster spat was determined. Adult red abalone were obtained for spawning purposes." (p.1) Title: Clam-oyster-abalone larval rearing : annual report Author: United States. National Marine Fisheries Service, Oregon. Fish Commission, Gibson, Gary G., Lukas, Gerald T. Reports on studies of spawning and larval rearing of Manila littleneck clams, native littleneck clams, butter clams and gaper clams, including field work. "Field studies comparing growth and survival of laboratory-reared and imported Pacific and Kumamoto oysters were completed. We continued studies comparing various methods of oyster culture in Yaquina Bay. Winter survival of laboratory-reared oyster spat was determined. Adult red abalone were obtained for spawning purposes." (p.1) Close

• 7. [Article] Oyster mortality study : summary report, 1966-72

  "We monitored oyster mortality in Yaquina, Coos, and Tillamook bays from July 1966-March 1972. Pacific oyster (Crassostrea gigas) mortality in Yaquina Bay appears to be lower than in any other reporting ...

  Citation × Citation Citation Abstract Copy Title: Oyster mortality study : summary report, 1966-72 Author: Oregon. Fish Commission, Gibson, Gary G. "We monitored oyster mortality in Yaquina, Coos, and Tillamook bays from July 1966-March 1972. Pacific oyster (Crassostrea gigas) mortality in Yaquina Bay appears to be lower than in any other reporting area on the Pacific Coast, generally less than 2% per year. Native oyster (Ostrea lurida) mortality ranged from 9.6-28.2%. Low salinity stress caused over one-half of this mortality each winter. In Tillamook Bay, Pacific oyster mortality generally averaged 4% per year; mortality in Coos Bay averaged 7% a year, excluding an unexplainable mortality of 19% during the summer of 1968. Bay mussel mortality totaled 49.9% in 1970-71 and 19.3% during 1971-72. Predation by small crabs probably caused these high mortalities..." (from the Abstract) Other work included a study of oyster shell growth, histological examinations of oyster tissues, a study of changes in the hydrography of Yaquina Bay, a study of a "neoplasm disease" of oysters in Yaquina Bay, a study of the sensitivity of native Olympia oysters to reduced salinity, and a study of molluscan sensitivity to outboard motor effluent. Title: Oyster mortality study : summary report, 1966-72 Author: Oregon. Fish Commission, Gibson, Gary G. "We monitored oyster mortality in Yaquina, Coos, and Tillamook bays from July 1966-March 1972. Pacific oyster (Crassostrea gigas) mortality in Yaquina Bay appears to be lower than in any other reporting area on the Pacific Coast, generally less than 2% per year. Native oyster (Ostrea lurida) mortality ranged from 9.6-28.2%. Low salinity stress caused over one-half of this mortality each winter. In Tillamook Bay, Pacific oyster mortality generally averaged 4% per year; mortality in Coos Bay averaged 7% a year, excluding an unexplainable mortality of 19% during the summer of 1968. Bay mussel mortality totaled 49.9% in 1970-71 and 19.3% during 1971-72. Predation by small crabs probably caused these high mortalities..." (from the Abstract) Other work included a study of oyster shell growth, histological examinations of oyster tissues, a study of changes in the hydrography of Yaquina Bay, a study of a "neoplasm disease" of oysters in Yaquina Bay, a study of the sensitivity of native Olympia oysters to reduced salinity, and a study of molluscan sensitivity to outboard motor effluent. Close