ill., maps; July 1993."; "Cooperative Park Studies Unit, College of Forestry, Oregon State University."; Includes bibliographical references.; This title is a culmination of the first 10-years of the Crater Lake limnological studies and a...
2009-01-26 2009-04-13 |
This study¹ was undertaken: (1) to obtain information on the distribution of the snail, Oxytrema silicula, in three coastal rivers in Oregon, and the seasonal incidence of infection in these snails and in snails from an inland stream, with the...
1966-03-02 (iso8601)
|
Juvenile coho salmon (Oncorhynchus kisutch) and steelhead trout
(Salmo gairdneri) of different stocks and three transferrin genotypes
(AA, AC, and CC), all reared in identical or similar environments, were
experimentally infected with the...
1978-03-13 (iso8601)
|
Crater Lake, originally barren of fish, was stocked on an
irregular basis from 1888 through 1941 with several species of
salmonids. Two species occur in the lake today--kokanee salmon
(Oncorhynchus nerka) and rainbow trout (Salmo gairdneri). This...
1988-05-23 (iso8601)
|
ppments, costs and benefits, and the recommended administration of the recreational areas. The reports would be illustrated with maps, charts, and illustrations and would be designed both for public enlightenment regarding the possibilities and...
|
likely to be slow and frustrating, but the mounting investment in salmon recovery is already requiring it. Finally, it is likely that some broadening in the financial basis for ecosystem recovery will be needed. If the limits of this last point...
|
Columbia system can do little in comparison to natural fluctuations. The dashed line on Figure 2 (page 31) shows the kind of change in the hydrograph we have achieved through storage releases since the early 1980s. Even with the relatively large...
|
Society in the Pacific Northwest." Indeed, some of Return to the River's recommendations closely resemble not just those of the National Research Council study, but also the National Marine Fisheries Service's proposed recovery plan; the treaty...
|
promptly high-jacked by the Endangered Species Act process. As the final Environmental Impact Statement of the System Operation Review said in 1995:
While one of the primary goals of the SOR is to decide on a coordinated operating strategy to...
|
IV. Restoring the River of Salmon
A. Salmon and the Effects of Development The developed river is a far cry from the river that saw the dawn of the 19th century. Storage projects have evened out the extreme year-to-year variations in flow.... |
Caption on mount: Fish wheel. Cascades, Columbia River, Washington
PH Coll 293.17 |
A study of the influences of climate changes in water resource in Salmon River Basin (SRB) is presented. The Salmon River starts in high elevation, mountainous, forest headwaters as an unimpaired river system. Accelerated Climate models for the...
2009-12-01
|
Turn of the
century Alaska photographs showing seal and otter hunting activities in
southeast Alaska and the Pribilof Islands, and Alaskan fish
hatcheries.; The collection contains photographs which were
arranged into several...
|
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....
1939 (iso8601)
|
Straying by hatchery-reared salmon is a major concern for conservation and recovery of many salmon
populations. Fisheries managers have attempted to minimize negative ecological and genetic interactions
between hatchery and wild fish by using...
2015-03-25 (iso8601)
|
I conducted a study to identify potential spawning habitat for anadromous salmonids above a 60-year-old hydropower dam in the headwaters of the North Umpqua River in Oregon. Like many other historical salmonid-bearing rivers, little documentation...
2013-05-03 (iso8601)
|
Detection of L-serine and D,L-alanine by juvenile coho salmon (Oncorhynchus kisutch) was measured in a two-choice Y-trough. Threshold concentration for olfactory
detection of L-serine was 10-8 M for zero-age parr, 1O-7 M for yearling parr, 10-5 M...
1985-08-29 (iso8601)
|
Juvenile chinook salmon Oncorhynchus tshawytscha were subjected to handling and
tagging protocols typical of normal hatchery operations and monitored for their physiological response
to stress. Treatments included coded-wire-tagging, counting,...
1998-04 (iso8601)
|
The effect of salmon blood plasma (SPP) on the gelation of Pacific whiting surimi under different ohmic heating conditions was investigated. SPP was found to significantly increase gel strength in gels heated ohmically to and held at 60° for 30...
2015-05 (iso8601)
|
Experiments were conducted to determine the effects of feeding
sulfamethazine to chinook salmon (Oncorhyncus tshawytscha, Walbaum)
as it is used in the Oregon Moist Pellet diet (OMP) for control of
bacterial infections and to compare this drug...
1965-04-26 (iso8601)
|
Many stakeholders involved with stream restoration in the Pacific Northwest have discussed the potential benefits of using beaver dam construction activities (Castor canadensis) as a management tool to improve degraded stream habitat for...
2013-08-14 (iso8601)
|
The Oregon Plan for Salmon and Watersheds, Technical Reports from the Independent Multidisciplinary Science Team (IMST) and numerous other documents identify an extensive array of research needed to recover depressed stocks of wild salmonids in...
2001-03-05 (iso8601)
|
During the Callianassa californiensis larval release period, weekly zooplankton samples were taken through daylight tidal cycles near the mouth of a small, fast flushing estuary on the Central Oregon coast. Although C. californiensis adults are...
1980-08-29 (iso8601)
|
The photoperiodic responses of Douglas-fir (Pseudotsuga menziesii (Mirb,) Franco) seedlings grown from seed collected at Salmon Arm, British Columbia, Coconino National Forest, Arizona, and Southern Vancouver Island were studied. Plants were grown...
1967-12-18 (iso8601)
|