Personnel of the OFC and OGC sampled various station of Coos Bay, Oregon to define areas used by several species of fish in the bay. Students at the University of Oregon Institute of Marine Biology sampled main channels with an otter trawl and observed animals on the tide flat. Primary...
This document contains a result of a study to determine the role of hatchery-reared winter steelhead in steelhead fisheries. The study examines the contribution of these salmon ‘with respect to’ angling intensity, number of fish stocked, contribution of native stocks, and several other factors. It also investigates survival of hatchery-reared...
Kokanee ecology F-71-R-2 This report contains the results of a study of kokanee salmon in Odell Lake in 1965. It includes the results of interviews with anglers on the lake, and a summary of the data regarding their catches. It also delineates information regarding kokanee growth, distribution, and maturation, and...
Kokanee Ecology F-71-R-1 This document is a report on the preliminary investigation into the Kokanee salmon in Odell Lake. As such, it includes catch results of Kokanee from various fishing vessels and days, as well as for fry from trawling. Data includes sizes of fish at various depths and times....
Large wood (LW) pieces are recognized as an important habitat component for salmon freshwater habitat. As such, they are often used in stream habitat restoration practices despite a lack of knowledge about their impacts on spatial and temporal hydraulic characteristics relevant to fish habitat. In this thesis we present results...
Land management policies are ideas about nature projected onto the landscape. Culminations of social, economic, and scientific influences, these policies create standards affecting the function of ecological systems. In the case of riparian lands in the Oregon Coast Range, policy requirements vary considerably across federal, state, and private land ownerships....
Reintroduction programs are used to re-establish species back into their historical habitat. Most reintroduction programs have failed and few papers have evaluated factors that may be important to Pacific salmon. The 158 meter tall Cougar Dam has blocked Chinook salmon (Oncorhynchus tshawytscha) from accessing 40 kilometers of historical spawning and...
Loss of lowland estuarine and freshwater off-channel habitats along the Pacific Northwest coast has contributed to the decline of salmonid populations. These habitats serve as nursery grounds for juvenile salmonids providing them with food, winter shelter, and a transition zone between freshwater and saltwater. Lowland areas have undergone anthropogenic alterations...
This report measures the effects of logging on the production and yield of Coho salmon, coastal cutthroat, and steelhead trout in small coastal streams. It contains descriptions of the physical and biological environment before logging, and describes some immediate effects of logging, such as such as a decrease in dissolved...