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1651 - 1675 of 2700 Items << < 62 63 64 65 66 67 68 69 70 71 > >>
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The effects of two patterns of logging on the intragravel environment were studied in three Oregon coastal streams between June 1968 and June 1969. The watershed of one stream (Needle Branch) had been clearcut, and that of a second stream (Deer...
1969-09-17 (iso8601)
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The underlying causes of mortality during critical life stages of fish are not well
understood, nor is it clear if these causes are similar for naturally versus artificially propagated (i.e.
hatchery) individuals. To assess the importance of...
2014-11-18 (iso8601)
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Variable ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects propagating up to higher trophic levels. Our goal was to better understand how varying ocean conditions influence diets and niche...
2012-04-16 (iso8601)
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Four species of euryhaline teleosts (chinook salmon, Oncorhynchus
tshawytscha, Walbaum; staghorn sculpin, Leptocottus armatus,
Girard; starry flounder, Platichthys stellatus, Pallas; shiner perch
Cymatogaster aggregata, Gibbons) were exposed to...
1967-08-04 (iso8601)
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This study applied brand choice model and stated preference data collected in French context by means of choice experiment to investigate value of intrinsic and extrinsic attributes of various fresh seafood species. The estimated models show that...
2012 (iso8601)
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During the last decade, several new aquaculture species like tilapia and pangasius has appeared in significant quantities, and growth for more traditional species like shrimp and salmon continues at high rates. This has led to and will continue to...
2008 (iso8601)
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The author presents research conducted by the Alaska Seafood Marketing Institute on consumer preferences and buying habits.
2001 (iso8601)
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The Rural Science Education Program is a partnership between Oregon State University and local rural K–12 schools for enrichment of the science curriculum with handson science activities. The curricula include simple, innovative inquiry- and...
2006-06 (iso8601)
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Urban areas currently cover a small fraction of Oregon’s landscape but will expand to accommodate an increasingly large proportion of the state’s growing population and economic activity. Residential developments on rural lands now cover more than...
2010-12-31 (iso8601)
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See pdf
1996-07-09 (iso8601)
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In a January 26, 2000 letter, the Portland District Army Corps of Engineers (COE) requested Endangered Species Act (ESA) Section 7 informal consultation with the National Marine Fisheries Service (NMFS) on the proposed issuance of a Clean Water...
2000-04-04 (iso8601)
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This document provides watershed restoration actions proposed to enhance the Coho Salmon population within the Rock Creek / Devils Lake basin in Lincoln County, Oregon. The stream is the principle tributary of Devil’s Lake, a lake of natural...
2003-07-01 (iso8601)
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The INR worked with the Oregon Department of Environmental Quality, the Oregon Department of Fish and Wildlife, and the federal Environmental Protection Agency to propose an
integrated study design for collecting data on Native Fish, Indexes of...
2005-07-21T18:15:02Z (iso8601)
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Source
PI-42, 50 SI-74 F-17
Tentative Disposition
E
WI-12, 56, 69 E
WI-71 C
WI-72 C F-17
Problem or Area of Concern
6. Transport baby salmon by barge downstream to Bonneville Dam. (G.B. 41)
COMMENT: A pilot program...
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Source
Tentative Disposition
Problem or Area of Concern
l. (Cont) E. Effect of peaking on passage at successive dams (Cont)
8. Effects of peaking on water quality (see II-C) - (Will there be subtle changes in water quality due to pool...
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COLUMBIA RIVER BASIN
MAJOR SUBDIVISIONS
division. The extensive irrigated areas in it are served largely from the lower Boise, Payette, Owyhee, and Malheur Rivers, from the upper Salmon, and from the middle Powder and Grande Ronde Rivers. As...
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APPENDIX 2
I. Prospective Power Sites, Columbia River
Basin. 2. Electric Power Requirements
for Irrigation Pumping on Potential Projects Columbia River Basin.
Prospective power sites 1—Columbia River Basin
Stream
Power site
Firm...
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romance has played a central role in the Columbia River Basin and the decline of salmon. Increasingly, however, it is tinged with the sense that at the end of the day, the ingenious drifter may settle down in a diminished world.
Perhaps we...
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motivate such initiatives as British Columbia's proposed "Sustainability Act," a provincial land-use strategy,63 the U.S. Forest Service's ecosystem management plans, and the regional and federal programs to restore salmon.
It is by no means...
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salmon mitigation insisted on more research before undertaking the most costly salmon recovery efforts, and sometimes for good reason. Fish managers, who thought they already knew that flow augmentation and hatchery supplementation were positive...
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the same time, however, these pilot projects have benefits even if they don't leave more water in rivers. They can remove barriers to migrating fish, help avoid destructive push-up dams, and produce cooler return flows. The concern over stream...
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The purpose of this Columbia River Stream Survey has been to provide data for evaluation of each stream, or portion of stream, from the standpoint of its present and potential value in relation to the maintenance of the salmon resources of the...
2024-11-23
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