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Using The Stream Salmonid Simulator S3 To Assess Juvenile Chinook Salmon Oncorhynchus Tshawytscha Production Under Historical And Proposed Action Flows In The Klamath River California
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Book Synopsis Using the Stream Salmonid Simulator (S3) to Assess Juvenile Chinook Salmon (oncorhynchus Tshawytscha) Production Under Historical and Proposed Action Flows in the Klamath River, California by : John M. Plumb
Download or read book Using the Stream Salmonid Simulator (S3) to Assess Juvenile Chinook Salmon (oncorhynchus Tshawytscha) Production Under Historical and Proposed Action Flows in the Klamath River, California written by John M. Plumb and published by . This book was released on 2019 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calibration of the Trinity River Stream Salmonid Simulator (S3) with Extension to the Klamath River, California by : John M. Plumb
Download or read book Calibration of the Trinity River Stream Salmonid Simulator (S3) with Extension to the Klamath River, California written by John M. Plumb and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Value of Short Run In-stream Temperature Forecasts by : Biao Huang
Download or read book The Value of Short Run In-stream Temperature Forecasts written by Biao Huang and published by . This book was released on 2009 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water temperature is an important measure of water quality, as well as a dominant factor affecting aquatic life within the stream environment. Elevated water temperatures can decrease the survival rate of fish in each life stage. Cold water species, such as salmonids, are particularly susceptible to elevated water temperatures. For example, increased water temperatures are believed to have been the major cause of the large fish kill observed in the Klamath River in September 2002. This thesis examines the economic value of short-term water temperature forecasts for salmonid management. Forecasts may have value if they allow the water resource manager to make more cost-effective water allocation decisions. Specifically, this study considers two applications. One is the case of adult Chinook salmon (O. tshawytscha) returning to the Lower Klamath River in California, where cold water could be released upstream from the Lewiston Dam into the Trinity River to lower The Klamath River water temperature. Water releases create opportunity costs because of foregone hydropower production and crop irrigation. The second application is to juvenile summer steelhead (Oncorhynchus mykiss) in the North Fork John Day River, where water could be purchased from agricultural uses to prevent excessive water temperature increases. This generates opportunity costs in the form of lower crop yields. This thesis incorporates bio-physical models and water temperature distribution data into a Bayesian framework to simulate the potential fish populations after ten generations and the corresponding opportunity cost of water under different forecast accuracies. Simulation results indicate that the marginal cost in the Klamath River decreases from about $80 per fish saved when the forecast standard deviation is 6 to about $40 when the forecast standard deviation is 0(perfect forecast). In the John Day River the marginal cost per fish decreases from $34 for a standard deviation of 6 to $29 for a standard deviation of 0. A key result of the thesis is the pattern of decreasing marginal costs as the forecast accuracy increases, suggesting that provision and use of such stream temperature forecasts would have value to society.
Book Synopsis Analysis of Historic Data for Juvenile and Adult Salmonid Production. Phase 1, Final Report by :
Download or read book Analysis of Historic Data for Juvenile and Adult Salmonid Production. Phase 1, Final Report written by and published by . This book was released on 1993 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Survival of hatchery reared Columbia River chinook (Oncorhynchus tshawytscha) salmon from release to return is highly variable and thought to be related to river flow during juvenile outmigration in the spring. The purpose of this project is to examine the relationship between survival of coded-wire-tagged (CWT) Columbia River salmonids and in-river flow and other freshwater factors. This report covers Phase 1, in which two methods to estimate survival were developed and evaluated, and criteria for data selection were established.
Download or read book Velocity written by Erik Donofrio and published by . This book was released on 2016 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to overfishing, land-use change, and climate change, many freshwater salmonid populations are at risk or already imperiled. Research addressing the biological mechanisms behind habitat selection is important if these populations are to be protected and restored. A literature review of salmonid habitat selection models has shown there is a lack of habitat selection data that relate a fitness surrogate, such as energy intake, to habitat selection. Descriptive studies of habitat selection, such as comparisons between use and availability, generally cannot elucidate the actual mechanisms producing differential selection of habitats. To identify potential factors affecting the decline of Chinook Salmon (Oncorhynchus tshawytscha) in Alaska, we examined the relationship between reactive distance, prey capture success, and water velocity for juvenile Chinook Salmon and used these results test the net energy gain habitat selection model of Grossman et al. (2002). We conducted two experiments, the first with 27 fish between 58 and 84 mm standard length (SL) and weight between 2.8 and 7.5 grams, and the second using pairs of dominant and subordinate fish (i.e., larger and smaller, mean difference= 7 mm (SL)) to test for the effects of dominance on prey capture success. Using an artificial stream tank, we tested juvenile Chinook Salmon at 10 cm/s velocity increments (10 cm/s to 60 cm/s) using frozen brine shrimp (Artemia spp.) as prey. Reactive distances for single fish trials averaged 32.7 cm and did not show significant velocity effects (p=0.66). Velocity was inversely related to prey capture success in a non-linear manner (p
Book Synopsis Analysis of Spatial Stream Networks for Salmonids by :
Download or read book Analysis of Spatial Stream Networks for Salmonids written by and published by . This book was released on 2020 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bonneville Power Administration and partner agencies have made significant investments in monitoring juvenile anadromous fish populations within the Columbia River Basin in previous decades. Thousands of reach surveys have been conducted to determine local densities of Chinook salmon and steelhead. Because multiple agencies collect these data for different purposes, fish survey sites are spread widely within and among basins, and some sites are resampled annually to describe temporal trends. Aggregation of these surveys into a large database provides a considerable resource, which among many possible uses, can be used with Spatial Statistical Network (SSN) models to develop new information about patterns in juvenile densities and covariates that affect those patterns. In Phase 1 of the Analysis of Spatial Stream Networks for Salmonids project (BPA contract #77234), we tested the application of SSN models to juvenile Chinook salmon and steelhead trout density surveys from the Grande Ronde and Wallowa River basins in northeastern Oregon (project area: 10,642 km2). Results from the Phase 1 analysis were sufficiently promising that Phase 2 was implemented to expand the approach to a larger geographic area that included the John Day and Imnaha river basins of Oregon, as well as all streams accessible to anadromous fish in Idaho (project area: 90,822 km2). Large datasets of juvenile fish surveys for Chinook salmon (n = 6,757) and steelhead (n = 7,436) were aggregated from CRITFC, ODFW, IDFG, USFS, CHaMP, and BioMark for the period of 2000-2018. These data were fit with SSN models and 28 covariates were assessed, which included representations of summer temperatures, flow characteristics, channel type, riparian conditions, land-use, land-cover, geology, invasive species, and inter-annual variation in juvenile densities. The final model for Chinook salmon juvenile densities included statistically significant relationships for seven covariates (reach slope, mean summer flow, mean August stream temperature, baseflow index, riparian canopy density, brook trout density, and inter-annual variation in juvenile densities) and explained 57% of the variation in densities at the survey sites across a potential habitat network of 9,064 km. The final model for steelhead accounted for 48% of the variation in densities at the survey sites across a larger potential habitat network of 18,064 km. The steelhead model included six of the same seven covariates as the Chinook salmon model (watershed conifer coverage replaced baseflow index) but response curves indicated different density-habitat relationships between the two species. Chinook salmon densities were highest in medium sized streams and rivers with low reach slopes, cool temperatures, higher brook trout densities, and intermediate levels of riparian canopy cover and baseflow values. Steelhead densities were highest in small streams with higher slopes, warmer temperatures, low brook trout densities, higher proportions of watershed conifer coverage, and intermediate levels of riparian canopy density. The final models were used to create 24 scenarios of juvenile densities throughout the potential habitat networks, which included a baseline composite scenario of average juvenile densities for 2000-2018 (Scenario 1), annual density scenarios from 2000 through 2018 (Scenarios 2-20), standard errors of the density predictions (Scenario 21), and three future density scenarios associated with increases in mean August stream temperature of 1°C, 2°C, and 3°C (Scenarios 22-24). The scenarios have many potential applications, a few of which are illustrated by calculating population estimates of juvenile Chinook salmon and steelhead by designated population areas and by assessing the sensitivity of juvenile densities to a 2°C increase in August temperatures. The observation datasets of juvenile densities, as well as the predicted density scenarios, were formatted and delivered with this report as ArcGIS shapefiles to facilitate further applications. A companion report done under BPA contract #81134 addresses additional work elements and explores options for open-source and cloud-based spatial data processing, modeling, and visualization of data and results associated with the Analysis of Spatial Stream Networks for Salmonids project.
Book Synopsis The Behavior and Ecology of Pacific Salmon and Trout by : Thomas P. Quinn
Download or read book The Behavior and Ecology of Pacific Salmon and Trout written by Thomas P. Quinn and published by UBC Press. This book was released on 2011-11-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.
Book Synopsis Bayesian Models by : N. Thompson Hobbs
Download or read book Bayesian Models written by N. Thompson Hobbs and published by Princeton University Press. This book was released on 2015-08-04 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bayesian modeling has become an indispensable tool for ecological research because it is uniquely suited to deal with complexity in a statistically coherent way. This textbook provides a comprehensive and accessible introduction to the latest Bayesian methods—in language ecologists can understand. Unlike other books on the subject, this one emphasizes the principles behind the computations, giving ecologists a big-picture understanding of how to implement this powerful statistical approach. Bayesian Models is an essential primer for non-statisticians. It begins with a definition of probability and develops a step-by-step sequence of connected ideas, including basic distribution theory, network diagrams, hierarchical models, Markov chain Monte Carlo, and inference from single and multiple models. This unique book places less emphasis on computer coding, favoring instead a concise presentation of the mathematical statistics needed to understand how and why Bayesian analysis works. It also explains how to write out properly formulated hierarchical Bayesian models and use them in computing, research papers, and proposals. This primer enables ecologists to understand the statistical principles behind Bayesian modeling and apply them to research, teaching, policy, and management. Presents the mathematical and statistical foundations of Bayesian modeling in language accessible to non-statisticians Covers basic distribution theory, network diagrams, hierarchical models, Markov chain Monte Carlo, and more Deemphasizes computer coding in favor of basic principles Explains how to write out properly factored statistical expressions representing Bayesian models
Book Synopsis Water Pollution Control Research Series 16070 EOK 07/71. Oceanography of the Nearshore Coastal Waters of the Pacific Northwest Relating to Possible Pollution Vols 1- by : United States. Water Programs Office
Download or read book Water Pollution Control Research Series 16070 EOK 07/71. Oceanography of the Nearshore Coastal Waters of the Pacific Northwest Relating to Possible Pollution Vols 1- written by United States. Water Programs Office and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Indicators of Climate Change in California by : Carmen Milanes (Environmentalist)
Download or read book Indicators of Climate Change in California written by Carmen Milanes (Environmentalist) and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309380979 Total Pages :187 pages Book Rating :4.3/5 (93 download)
Book Synopsis Attribution of Extreme Weather Events in the Context of Climate Change by : National Academies of Sciences, Engineering, and Medicine
Download or read book Attribution of Extreme Weather Events in the Context of Climate Change written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-07-28 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: As climate has warmed over recent years, a new pattern of more frequent and more intense weather events has unfolded across the globe. Climate models simulate such changes in extreme events, and some of the reasons for the changes are well understood. Warming increases the likelihood of extremely hot days and nights, favors increased atmospheric moisture that may result in more frequent heavy rainfall and snowfall, and leads to evaporation that can exacerbate droughts. Even with evidence of these broad trends, scientists cautioned in the past that individual weather events couldn't be attributed to climate change. Now, with advances in understanding the climate science behind extreme events and the science of extreme event attribution, such blanket statements may not be accurate. The relatively young science of extreme event attribution seeks to tease out the influence of human-cause climate change from other factors, such as natural sources of variability like El Niño, as contributors to individual extreme events. Event attribution can answer questions about how much climate change influenced the probability or intensity of a specific type of weather event. As event attribution capabilities improve, they could help inform choices about assessing and managing risk, and in guiding climate adaptation strategies. This report examines the current state of science of extreme weather attribution, and identifies ways to move the science forward to improve attribution capabilities.
Book Synopsis Introduction to Physical Oceanography by : Robert H. Stewart
Download or read book Introduction to Physical Oceanography written by Robert H. Stewart and published by Orange Grove Text Plus. This book was released on 2009-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for college juniors and seniors and new graduate students in meteorology, ocean engineering, and oceanography. It begins with a brief overview of what is known about the ocean. This is followed by a description of the ocean basins, for the shape of the seas influences the physical processes in the water. Next, students will study the external forces, wind and heat, acting on the ocean, and the ocean's response. It also includes the equations describing dynamic response of the ocean. For example, the equations of motion, the influence of earth's rotation, and viscosity. Finally, students consider some particular examples: the deep circulation, the equatorial ocean and El NiE no, and the circulation of particular areas of the ocean. Contents: 1) A Voyage of Discovery. 2) The Historical Setting. 3) The Physical Setting. 4) Atmospheric Influences. 5) The Oceanic Heat Budget. 6) Temperature, Salinity and Density. 7) The Equations of Motion. 8) Equations of Motion with Viscosity. 9) Response of the Upper Ocean to Winds. 10) Geostrophic Currents. 11) Wind Driven Ocean Circulation. 12) Vorticity in the Ocean. 13) Deep Circulation in the Ocean. 14) Equatorial Processes. 15) Numerical Models. 16) Ocean Waves. 17) Coastal Processes and Tides."
Book Synopsis First Course in Probability and Statistics by : Jerzy Neyman
Download or read book First Course in Probability and Statistics written by Jerzy Neyman and published by . This book was released on 1950 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Klamath Project by : Eric A. Stene
Download or read book The Klamath Project written by Eric A. Stene and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model Validation and Uncertainty Quantification, Volume 3 by : H. Sezer Atamturktur
Download or read book Model Validation and Uncertainty Quantification, Volume 3 written by H. Sezer Atamturktur and published by Springer Science & Business Media. This book was released on 2014-04-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data
Book Synopsis Bulletin of the Bureau of Fisheries by :
Download or read book Bulletin of the Bureau of Fisheries written by and published by . This book was released on 1902 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The National Weather Records Center by :
Download or read book The National Weather Records Center written by and published by . This book was released on 1960 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
