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...
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,...
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...
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...
This report is an update of shellfish investigations from January to August in 1951. It includes (among other things) criticism of human pollution such as lumber mill dust and human sewage, particularly in the Yaquina Bay area, discussion of a proposed experimental closure of the Nehalem Bay area to crab...
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 The previous legislative session had repealed many outdated laws but kept them in effect until the Fish Commission could study the issue and propose new regulations.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...
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...
This investigation focuses on growth and survival of Pacific razor clams, measuring clams from multiple sites. It tracks the length frequencies of clams recorded, as well as length-live weight relationships. This report also includes data on number of crab pots being fished between the Columbia and Siuslaw Rivers in April,...
Best available copy. Originally published as part of Shellfish investigation progress report no. 4. “In the spring of 1947, importation of Pacific oyster seed from Japan was resumed for the first time since before the war. Major plantings of this seed were made in Tillamook and Coos Bay with additional...
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...