Consists largely of tables summarizing various hatchery and game farm expenditures, numbers of trout handled at different life stages and locations, and also game fish/pheasants liberated.
These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon which...
These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon which...
These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon which...
These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon which...
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...
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...
Reports on an investigation of a request by the C.D. Johnson Lumber Company to construct a log boom two miles below Toledo on the Yaquina River. Local residents were concerned that the boom would damage clam beds. Includes a hand-drawn map of the area.
Report of a meeting about two diking districts on the Yaquina River. Tide gates had failed and brackish water was flowing into areas where cattle were grazing, to the dismay of some local farmers.
"On April 12, 1949 the Port Commission of Bayocean, Oregon made two test blasts directly out from Bayocean on Tillamook Bay. The purpose was to determine the feasibility of blasting a channel in that area to permit small boats to dock closer inshore. Although no consequential shellfish except oysters (beds...
In mid-December, 1948, during the time the crab season was closed in State waters, a boat caught crabs outside the entrance to the Columbia River, which was outside the three-mile jurisdictional limit. Because "one man was already fishing," the crab fleet members began to complain and threaten to fish before...
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.
This report concerns the disposal of dredging spoil in the Rogue River estuary in 1948. Since there were few shellfish resources existing in the estuary at the time, Oregon Fish Commission biologists had no objection to make to the disposal of the dredged materials.
Much of this report is concerned with the perennial question of when crabs are in the soft-shell state, as opposed to when the commercial fishing season should be open. Other topics covered include molted crab shells, methods of measuring crab shells to determine if they meet size limits, early 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...
Gives crab boats and number of pots fished for Astoria and Tillamook Bay. Gives number of crab pots being fished for given localities. Gives per cent of soft-shelled crabs by local areas.
This document marks the beginning of a long struggle for Oregon natural resource managers to find the best time to open the crab season. The time of crab molting is highly variable, and it is hard to determine the best time (firm shells, full of meat) to start the commercial...
The new closed season for commercial crab fishing in Oregon went into effect in 1948. This 1949 document summarizes the results of the 1948 closure and details research and procedures being used to refine the closing dates. This document provides a good look at earlier methods of natural resource management...
This document is in three parts: a report on the ghost shrimp fishery, elucidation of a method to tax commercial crab landings, and a description of a commercial enterprise that was catching small shore crabs and embedding them in plastic for sale as tourist souvenirs.
Gives proposed regulations for the recreational and commercial Dungeness crab fisheries. “A considerable tourist and sports crab fishery exists on which at the present there are no regulations whatsoever. As a result, certain practices have developed … which are believed detrimental to the fishery. The most readily seen of these...
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...
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 focuses on the stocks of Silver (Coho) and Chinook salmon in Tillamook and Coos Bays, as well as Nehalem, Siletz, Yaquina, Alsea, Siuslaw, and Coquille Rivers. It gives a brief history of Oregon fisheries in general, then delineates and analyzes the yearly landings of each fishery for Silver...
July 1, 1942-June 30, 1944. Consists largely of tables summarizing various hatchery and game farm expenditures, numbers of trout handled at different life stages and locations, and also game fish/pheasants liberated.
A symposium presented before a joint meeting of the
American Society of Ichthyologists and Herpetologists
and the Western Society of Naturalists at Stanford University
on June 29, 1939, and published as a special issue
of the Stanford Ichthyological Bulletin through the cooperation
of the Fish Commission of the State of...
During an oceanographic cruise of the "E. W. Scripps" in May, 1939, off the coast of Oregon, four small, post-larval specimens of Anoplopoma fimitrita were taken at the surface of the sea with a dip net at two of the hydrographic stations off Cascade Head, Oregon.
The temperate water fisheries for albacore in the North Pacific seem to exploit somewhat similar segments of the respective populations present in the various localities. It is clear that in most of the exploited populations two or at most three year classes are highly dominant. In the California fishery from...
In a paper now in press as a Bulletin of the U. S. Fish and Wildlife Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since 1920 and has stated that the decline is doubtless an indication that the runs of this species...
Samples, consisting of scales, length and weight measurements, and sex determinations of chum, pink, and silver salmons, were taken from the commercial catch in the Columbia River in 1914. Five hundred eighteen chum scales were examined. All fish had gone to sea early in their first year; and 70.5 percent...
The salmon of the Columbia River have supported an intensive fishery for over seventy years but are now showing unmistakable signs of depletion, and various factors are contributing to the rapid progress of this condition. Five species of fish enter into the commercial fishery on the Columbia River itself. These...
The salmon runs of the Columbia River constitute one of the most important natural resources of the states of Oregon and Washington. Thousands of people are dependent, wholly or in part, upon these resources for their livelihood; and their welfare is dependent upon the maintenance of the salmon runs. It...
A study of the fishery problems raised by the construction of the Grand Coulee Dam on the upper Columbia River was done. Part of the study was to estimate the number of salmon taken in commercial fishery for the purpose of comparing this with the number counted as they passed...
1. Six major types of commercial gear have been used to take salmon and steelhead on the Columbia River; namely, gill nets, set nets, seines, traps, fish wheels and dip nets. 2. The five important commercial species in the Columbia River are chinook, silver, blueback and chum salmon and steelhead...
Exceptional data are available for the study of the salmon runs of the Columbia River in 1938. Detailed figures on catch were supplied by Oregon and Washington in such form that they could readily be combined with the counts at Bonneville Dam to provide a basis for estimating the escapement....