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Creator:: Tollefson, Roger and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: and that the boys ramtr openaitbyareat the tjee. Roger ?ollfson Aquatic Biologist ' ! " ' l l t i l

Creator:: Tollefson, Roger and Oregon. Fish Commission
Abstract:: 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 The previous legislative session had repealed many outdated laws but kept them in effect until the Fish Commission could study the issue and propose new regulations.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...
Resource Type:: Technical Report

Creator:: Tollefson, Roger and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Tollefson, Roger and Oregon. Fish Commission
Abstract:: “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...
Resource Type:: Technical Report

Creator:: Tollefson, Roger and Oregon Fish Commission. Shellfish Program
Abstract:: 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.
Resource Type:: Technical Report

Creator:: Tollefson, Roger, Marriage, Lowell D., and Oregon. Fish Commission
Abstract:: 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.
Resource Type:: Technical Report
Full Text:: all landings in Oregon of 25 pounds per dozen is believed reasonably correct. Roger Tollefson

Creator:: Tollefson, Roger, Marriage, Lowell D., and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: , effective two weeks from date ot notice. Roger Tollefson Lonll D. Marriage A:;uatic Biologists

Creator:: Tollefson, Roger, Marriage, Lowell D., and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: shellfish populations, prOViding the spoils are held within the designated boundaries .. Roger Tollefson

Creator:: Tollefson, Roger, Marriage, Lowell D., and Oregon. Fish Commission
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: construoted to continue this interesting growth experiment on the cockle clam. Roger Tollefson, Lowell D

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