The author collected scales from angler-caught steelhead trout during the winter of 1941-1942. This data was supplemented with data from commercially gill-netted steelhead collected January 30-February 28, 1942. Most fish came from the lower Tillamook Bay or the lower Wilson River. The author examined size, growth pattern, age and sex,...
“Starting the first part of July, 1947, the Fish Commission of Oregon set up a field station at Newport for the purpose of conducting research on shellfish.” (p.1) The status of clams in Yaquina Bay was the first topic studied. This paper gives the conditions of clam beds, lists species...
Did regulations restricting the harvest of cockle clams by recreational clammers also restrict commercial harvesting for crab bait? In the case of Netarts Bay, they did not. The reasons for the exemption are given in this document.
When should the clamming season for horseneck, fat gaper, or horse clams (Tresus capax) be closed in Coos Bay? They are in "very poor condition" after spawning, and should not be harvested until they have a chance to recover from spawning season. But when do they spawn? Is Coos Bay...
The Army Corps of Engineers dredged in Coos Bay in the fall of 1948, dumping dredge spoils on a large clam bed and killing the clams. Although Fish Commission biologists were unable to relocate the original planned dumping site, they observed the resulting increased pressures on remaining clam resources, and...
Reports on an investigation of a proposal by the Evans Products Company of Coos Bay to construct a dike in the bay. Investigators found negligible quantities of the Eastern soft-shell clam, and therefore did not oppose the proposed dredging and construction. Includes a hand-drawn map and a survey report.
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...
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...
Yaquina Bay and River waters were sampled in May, 1951 "to determine the suitability of these waters for the propagation of fresh market shellfish." (p.1) Found that the intensity and extent of pollution had increased "markedly" since the previous survey of March, 1948. "The waters of the bay are grossly...