An average of approximately 200,000 pounds of bay clams were harvested annually in Oregon for the years 1943-49, inclusive. The commercial harvest of bay clams is composed of the gaper, cockle, and softshell clams. The recreational, or noncommercial, harvest of bay clams is composed mainly of the gaper, cockle, softshell,...
This report contains the results of standardized screening for the 1952 year-class of young razor clams. It also contains data regarding the age composition of the catch, a description of the marking program for 1952, and an analysis of recoveries by both sport and commercial fisheries.
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 The previous legislative session had repealed many outdated laws but kept them in effect until the Fish Commission could study the issue and propose new regulations.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...
“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...
This report contains a series of individual reports within it. The main report continues growth and aging studies on fat gaper clams in Yaquina Bay. This document also includes a report on other Fish Commission activities on the Coast, a summary of razor clam research, the beginning of a survey...
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...
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...
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...
This report presents information on clam distribution in Oregon estuaries. It includes clam population estimates for parts of Yaquina, Tillamook and Coos bays. Gives data from a clam aging study. Permits were issued for commercial clam harvesting in Yaquina and Coos bays. Reports on plantings of clams in Netarts and...
This is a staff statement for a hearing of the Oregon Fish and Wildlife Commission. The document addresses problems associated with commercial clamming. Some commercial diggers were not selling harvests as required by law, were not properly reporting harvests, and were not paying State fees. Some commercial diggers were taking...
This document outlines a 5-year plan to study clam fisheries in Oregon. "We have identified four areas of research and education that require attention. These are: 1) Development of a fishery for the Manila clam Tapes japonica. 2) Study the effects of clamming and management practices on clam populations. 3)...
This is an Oregon Dept. of Fish and Wildlife internal discussion paper about a proposal to create a new clam bed in front of the Hatfield Marine Science Center, and to explore releasing Manila clams or native clam species seed stock in order to enhance recreational clamming in Oregon.
This report summarizes the results of our bay clam studies in 1985. Activities summarized include monitoring of the recreational and commercial clam fisheries, hatchery stock enhancement studies, natural recruitment studies, and miscellaneous other projects.
This document addresses the management of Oregon's bay clam resources in the early 1980s. It gives a brief description of the fisheries, outlines agency goals and objectives, and lists known problems with preferred solutions.
"We continued our studies of the distribution of bay clams in Oregon's estuaries, Maps showing the distribution of clams and vegetation type in Umpqua and Coos bays are presented. . . We continued to monitor the growth of laboratory produced clams planted in Netarts and Yaquina bays." (from the Abstract)...
In response to a decline in gaper clam stocks, the Research Division of the Oregon Fish Commission recommended that the overall limit for gaper clams be reduced to 12 gapers per personal-use clam digger, with a 36-clam overall daily limit.
What should be done with dredge spoils? "This report discusses two clam beds that were inadvertently established by dredge spoils and suggests the type and magnitude of study I think is needed to determine the feasibility of creating new clam beds with dredge spoils." Includes maps of Yaquina Bay, and...
This is a report of an investigation of possible damage to shellfish in the Siuslaw River estuary following the tsunami of March 27, 1964. Investigators did find some damage to clam beds, "However, the damage was not extensive and was limited primarily to the area around runoff channels." Includes map...
"October 1, 1979 to September 30, 1980." "We continued our studies on the clam resources in Oregon's estuaries. Our objectives were: (1) to monitor the commercial harvest of subtidal clams in Yaquina and Coos bays and evaluate the effects of mechanical harvest on subtidal clam populations and habitat; (2) to...
"Members of the clam harvesting industry have been requesting for several year[s] to allow the use of mechanical gear to harvest bay clams. Presently, harvest is limited to hand methods. . . The purpose of this report is to summarize the use of mechanical gear in the past in Oregon...