This document describes the life history and abundance of both the spring Chinook salmon and the Silver salmon in the Willamette River. It also goes into detail about various factors affecting Willamette salmon runs., including pollution, dams, and logging.
1. A rational conservation program for such migratory fishes as the salmon must be based on a knowledge of (a) whether or not the species consists of local, self-perpetuating populations and (b) the nature and extent of the oceanic migrations.
2. The conservation of a species that is broken up...
In 1973 Oregon entered into a cooperative State/Federal Dungeness Crab Management Program with the states of Washington and California, the National Marine Fisheries Service, and the Pacific Marine Fisheries Commission. A study team consisting of two economists and a biologist was hired to review the Dungeness crab fishery and management...
The object of this report is to discuss the following shellfish regulation problems: 1) offshore crab seasons; 2) minimum size and gear for commercially-caught bay crabs; 3) and the gaper clam season in Coos Bay. These regulations have received some criticism recently and are scheduled to be discussed at the...
On July 1, 1969, the Fish Commission of Oregon, under contract by the Bureau of Commercial Fisheries, began a 1-year study of the pink shrimp (Pandalus jordani Rathbun) off Tillamook Head, Oregon. The primary goal was to determine the seasonal movement of this special within a given area. The study...
This bulletin provides a brief description of 8 different clams most commonly harvested in Oregon, delineating average depth and distribution as well as common harvesting techniques for each clam. The bulletin also describes the bays and rivers affected by tidal action, and their clam beds.
This report is an update of shellfish investigations from June 1 to December 31, 1953. It includes a summary of bay clam and crab investigations, including details on oyster pests in Oregon and crab production for 1952. It also summarizes a survey on commercial razor clam production in Lincoln County...
This report is an update of shellfish investigations from January 1-December 31, 1953. It includes a summary of bay clam and oyster investigations, including details on attempted pest control and control of algae on oyster beds. It also contains results of the 1953 Tillamook Bay Clam Survey, and discusses clam...
This report is a description of the neoplasm disease affecting the native oyster and bay mussel in Yaquina Bay. It lists actions taken to study the disease further, and assures the public that the disease is under control.
This report is an update of shellfish investigations from April 1967 to March 1970. It includes the results of bay clam surveys for Yaquina, Siuslaw, and Umpqua bays, and harvest numbers for razor clams in both personal-use and commercial fisheries. This report also contains a summary of beach surveys for...