Author: Alida Gage AbbottPublisher:
ISBN:
Category :
Languages : en
Pages : 346
Book Description
The Effect of Riparian Vegetation on Stream Temperature in the Shasta River
Author: Alida Gage AbbottFinal Report, Shasta River Data Inventory, Woody Riparian Vegetation Inventory and Temperature Model
Author: Shasta Valley Resource Conservation District (Organization)Publisher:
ISBN:
Category : Riparian ecology
Languages : en
Pages : 11
Book Description
Final Environmental Impact Statement: Summary and chapters 1-4
Author: United States. Forest Service. Pacific Northwest RegionPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 456
Book Description
Implications for Restoration
Author: Ashley Brandyn Burry-TricePublisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 109
Book Description
Stream temperature impairment is a significant problem in the western United States and throughout Montana. Stream temperature is a measure of the amount of heat energy per unit volume of water. Change in either the amount of heat energy entering the stream or the amount of water flowing in the channel has the potential to alter stream temperature, and both natural and human influences can alter these characteristics. This thesis examines the relationship between the amount of riparian shade and mean, minimum, and maximum daily stream temperatures. In addition, this study examines the patterns of riparian vegetation conditions and how they relate to land-use practices within the drainage. These findings in turn indicate reaches in need of future riparian restoration projects, and land-use management plans. The two overarching goals are 1) to provide a background on the significance and implications of stream temperatures; and 2) to use Gold Creek, tributary of the upper Clark Fork River of western Montana, as a case study to examine further the relationship between existing riparian vegetation conditions and stream temperature loading. To document and examine the relationships between riparian vegetation, shade, and stream temperatures, six study reaches were delineated, each 100 meters long. Temperature loggers were placed at the top and bottom of each reach and were set to record stream temperature every 30 minutes from mid-July through October in 2011. Detailed riparian vegetation characteristics, including height, offset, and density were averaged and recorded for each reach. In addition, stream discharge was measured manually at the same locations where temperature loggers were placed. A heat flux model developed by USGS was used, called the Stream Segment Temperature Model, to help determine the strength of each field component and heat fluxes on stream temperature down the length of each reach. The model was calibrated with measured temperature data from the field. Instream temperature monitoring and heat flux modeling both indicate that stream temperatures in lower Gold Creek are likely at or greater than 66.5°F during part of the summer and fall. These temperatures are high enough to damage critical westslope cutthroat trout populations. In summer 2011, the lower two miles of Gold Creek showed a greater than 1° F increase over the naturally occurring (reference) temperature, indicating possible stream temperature impairment. The heat flux model used in this study indicates that increases in the amount of shade will likely reduce stream maximum temperatures. Dense riparian vegetation reduces exposure to solar radiation. This study reinforces the findings of several previous studies that increased shading reduces water temperature and hence aids stream restoration where temperatures are at stressful levels for aquatic life. The restoration of stream shade may be the most effective means of improving water quality and habitat in small agricultural streams such as Gold Creek.
Endangered and Threatened Fishes in the Klamath River Basin
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309090970
Category : Science
Languages : en
Pages : 425
Book Description
In 1988 the U.S. Fish and Wildlife Service listed two endemic fishes of the upper Klamath River basin of Oregon and California, the sucker and the Lost River sucker, as endangered under the federal Endangered Species Act (ESA). In 1997, the National Marine Fisheries Service added the Southern Oregon Northern coastal California (SONCC) coho salmon as a threatened species to the list. The leading factors attributed to the decline of these species were overfishing, blockage of migration, entrainment by water management structures, habitat degradation, nonnative species, and poor water quality. Endangered and Threatened Fishes of the Klamath River Basin addresses the scientific aspects related to the continued survival of coho salmon and shortnose and Lost River suckers in the Klamath River. The book further examines and identifies gaps in the knowledge and scientific information needed for recovery of the listed species and proves an assessment of scientific considerations relevant to strategies for promoting the recovery of those species.
Final Biological Assessment
Author: Siskiyou National Forest (N.F.), Shasta Costa Timber Sales and Integrated Resource, Curry County
Author: Improving Managed Environmental Water Use
Author: Sarah Elizabeth NullPublisher:
ISBN:
Category :
Languages : en
Pages : 568
Book Description
River Temperature Dynamics in the Sacramento River
Author: Cynthia Larue LowneyPublisher:
ISBN:
Category : Fishes
Languages : en
Pages : 404
Book Description
Author: