Results
226 - 250 of 481 Items << < 5 6 7 8 9 10 11 12 13 14 > >>
226 - 250 of 481 Items << < 5 6 7 8 9 10 11 12 13 14 > >>
|
5 p.; Caption title; "November 13, 2001."
2024-05-07
2006-12-01 2006-04-18 |
|
Another problem arose from high levels of spill specified in the National Marine Fisheries Service biological opinions. The spill levels were high enough at some times of the year to create gas supersaturation that can be lethal to salmon....
|
|
We tested the hypothesis that spawning-bed enhancement increases survival and growth of chinook salmon (Oncorhynchus tshawytscha) embryos in a regulated California stream with a gravel deficit. We also examined how 12 physical parameters...
2004-04-01
|
|
Rivers. These soils are dark colored, neutral to slightly acid in reactions, and fertile. They are intensively utilized for specialty farming, particularly the production of orchard fruits.
Small areas of alluvial soils are found along the...
|
|
"equitable apportionment" principles of interstate water law.68 The court agreed that equitable apportionment applies to salmon in principle: "At the root of the [equitable apportionment] doctrine is the same principle that animates many of the...
|
|
of cases on fish harvest in the Columbia River and Puget Sound, the tribes established the right to harvest up to half of the salmon runs, including hatchery populations.60
In addition to harvest rights, the treaty fishing cases suggested two...
|
|
among scientists and managers than ever before. By 1995, all of the basin's recovery plans, Return to the River, and the National Research Council's Upstream report urged an adaptive approach.21
Other essential pieces of an adaptive management...
|
|
Pacific Coast estuaries provide important rearing habitats leading to improved growth and survival for juvenile chinook salmon. However, research has suggested that juvenile salmon have little use for estuarine habitats in the Columbia River. To...
2004-08-03 (iso8601)
|
|
choice, Return to the River maintains, is between a more complex working river with healthy salmon populations and a simpler river without them.
Return to the River urges that salmon recovery be premised on the restoration of a working...
|
|
"equitable apportionment" principles of interstate water law.68 The court agreed that equitable apportionment applies to salmon in principle: "At the root of the [equitable apportionment] doctrine is the same principle that animates many of the...
|
|
Rehabilitation of salmonid spawning habitat in regulated rivers through spawning bed enhancement is commonly used to mitigate altered sediment and flow regimes and associated declines in salmonid communities. Partial design‐phase predictive...
2004-01-01
|
|
The restoration of rivers and streams should be based on a
strong conceptual framework. Streams are developing systems. As
such, streams exhibit temporal behaviors that change with changing
stream environments. Underlying the dynamic development...
1994-06-01 (iso8601)
|
|
Stream-restoration projects are usually designed to improve habitat quality for fishes.
These projects manipulate flow patterns, substrate distribution, and amount and
placement of large woody debris. Consequently, they also affect the size and...
1996-02-09 (iso8601)
|
|
I examined the relative roles of biotic and abiotic factors in structuring redband trout
Oncorhynchus mykiss distributions in the South Fork John Day. I first examined the
relationship between the biological traits of the fish assemblage and...
2008-10-13T17:03:35Z (iso8601)
|
|
Executive Summary This report presents the Upper Klamath Basin Working Group's (Working Group) recommendations for the development and implementation of a restoration plan for the Upper Klamath Basin. In 1996, the 104th Congress of the United...
2024-05-07
2005-02-01 2004-07-15 |
|
This paper examines the tradeoffs between the production of crops and habitat for juvenile salmon, through flood events, on the Yolo Bypass floodplain. I investigate how changes in the fishery management institution affect the economic returns to...
2014-07-07 (iso8601)
|
|
Bankfull discharge is an important indicator of streamfiow and affects
physical instream habitat. Geographic Information Systems (G IS), hydrologic
modeling, and statistical analysis were utilized to assess the relationship of
bankfull discharge...
2000-04-06 (iso8601)
|
|
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...
|
|
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...
|
|
Records documenting the activites of the
Carkeek Park Advisory Council.; Historical Note; The “original” Carkeek Park, was located on Lake Washington, around Sand
Point. In 1926, the Carkeek family donated the area to the US Navy, as it...
|
|
This study was an investigation to determine the distribution, abundance and general food habits of salmonids and non-game fishes residing in several selected coastal streams, Douglas and Coos Counties, Oregon. The physical conditions that...
1982-03-12 (iso8601)
|
|
The research involved development of two ecological
simulation models to explain the complex dimensionality of
chinook salmon (Oncorhynchus tshawytscha) life history
structure (represented by the age composition of the
spawning stock) and...
1990-03-13 (iso8601)
|
|
Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii may be highly dependent on estuaries, passing through them multiple times during their lifetime. However, few studies have investigated estuarine use by coastal cutthroat trout and it...
2007-08-13T14:30:15Z (iso8601)
|
