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1051 - 1075 of 2700 Items << < 38 39 40 41 42 43 44 45 46 47 > >>
1051 - 1075 of 2700 Items << < 38 39 40 41 42 43 44 45 46 47 > >>
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Aseries of dams on the Deschutes River, Oregon, act as migration barriers that segregate the river system into upper
and lower basins. Proposed fish passage between basins would reunite populations of native potamodromous fish and
allow anadromous...
2012-11-12 (iso8601)
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Much attention has been given to how to model the price spread since Gardner's important contribution was published in the mid seventies. Most farm-retail price spread studies are applied on agriculture products restricted to domestic trade only....
2008 (iso8601)
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Although it is known that polycyclic aromatic hydrocarbons (PAHs) can be found in smoked meats, little is known about their prevalence in Native American smoked fish. In this work, the effect of traditional Native American fish smoking methods on...
2012-07-11 (iso8601)
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The main objective of this study was to estimate the demand for and net economic benefits from Oregon salmon sport fishing. The travel cost method was used as the primary technique for demand analysis. Several empirical estimates of consumer...
1985-04-30 (iso8601)
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same character, very narrow with perpendicular cliff rocks, at a height of from 25 to 30 feet. From the tops of the bluffs the hills rise at a steel) acclivity to the snow-line which marks their crests. While stopping at the Oregon Bar to wood up,...
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should hold in plans for basin-wide development of all resources, an economic evaluation of the basin's fisheries is essential. This will require the collection and analysis of statistics of the commercial, sport, and Indian fisheries in the...
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water freed up by conservation projects to be dedicated to instream uses? 50 Without answers to these questions, can the Bureau play much of a role in tributary water issues in which ecosystem issues are central?
The Federal Energy Regulatory...
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Nevertheless, during the 1980s these elements were often glossed over, and adaptive management too easily became a code word for passive data collection.
Problems of coordination. Organized learning requires an enormous effort of...
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Yet, if policy makers lack patience for science, they run other risks. The complexity of marine ecosystems has repeatedly led humans into error, in which the wrong factors were identified as problems and purported solutions only compounded- error...
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focus our efforts, and how far we need to move toward specific norms. Deciding whether to focus effort in this geographic spot, with these techniques, in this community, will depend not just on a conception of a normative river, but on a complex...
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flow protections usually carry junior priorities in fully appropriated rivers, enforcement of instream flow protection is spotty,137 and multiple-use basin plans tend to end up as "shelf art."138
E. Prospects for River Management in the Late...
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Notwithstanding the quantity of ink that has been spilt over such questions, only a few things are clear. There was significant over-fishing and habitat disturbance in the Columbia River Basin long before the mainstem dams were built. Snake River...
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Contents
Page I. Introduction 1 A. The Problem 1 B. Policy Issues and Recommendations 4 1. Ecosystem Management 4 2. Collaboration 5 3. Financing Ecosystem Recovery 8 4. Governance 8 C. Overview 10 II. The Setting... |
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Brief article detailing the use of fishing wheels for catching salmon on the Columbia River. Most of the page is taken up by a drawing of a fishing boat equipped with a fishing wheel. The drawing shows four men on the boat who are pulling the fish...
1899-10-14
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craft from China, Japan, Honolulu, Alaska, and Pacific ports. British, French, German, Russian, Italian, and Danish boats seek refuge here, and the Colombia River steamboat swings quickly past, through the widening river, in front of the...
2004-03-02
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Gold dredge on Yankee Fork of Salmon River It was the largest dredge in Idaho Dredge was reputed to be recovering $10,000 in flour gold each week
1941-06-19
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Looking downstream in Middle Fork Salmon River Valley below Deer Horn Creek
Greyhound Creek enters in background on right
1941-07-21
2003-01-01 |
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Shows the banks of the river and is 6000-8000 feet high
1941-06-27
2003-01-01 |
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Chinook salmon jumping in the McKenzie River, Oregon;1938-06
2024-11-23
2003-01-01 |
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Caption on mount: Mess' Hapgood and Co.'s Cannery, Columbia River, Washington
PH Coll 293.43 |
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Monitoring geomorphic changes in response to river restoration interventions through the use of repeat topographic surveying is becoming more common in long-term monitoring programs. Repeat montitoring surveys are often preformed before and...
2009-04-01
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Letter: From J.A. Riggins, Jr, to Stewart Udall, April 13, 1965, page 1
1965-04-13
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Notes for the Utah chapter of the Work Project Administration's (WPA) history of grazing.; This collection contains notes for the Utah chapter of the Work Project Administration's (WPA) history of grazing. The collection also includes...
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