Author: Sean Windell Publisher: ISBN: Category : Chinook salmon Languages : en Pages : 49
Book Description
California's Central Valley Interagency Ecology Program (IEP) formed multi-agency Salmon and Sturgeon Assessment of Indicators by Life Stage (SAIL) synthesis teams to develop a scientific framework for evaluating existing information on endangered Sacramento River winter-run Chinook salmon (SRWRC; Oncorhynchus tshawytscha), green sturgeon (Acipenser medirostris), and white sturgeon (A. transmontanus) and provide recommendations to improve the management value of life stage monitoring. Developing the SAIL framework for SRWRC and sturgeon followed parallel approaches that included three steps. First, existing conceptual models (CMs) were reviewed and modified to characterize specific environmental and management factors that drive SRWRC responses within discrete geographic domains and life stages. Second, the existing monitoring network was compared to fish demographic responses in the CMs to identify deficiencies. The deficiencies were interpreted as gaps in the existing network that prevent annual, quantitative, population-level metrics from being developed that are needed to support water management actions, assess population viability, and prioritize population recovery actions among geographic domains across the freshwater landscape. Lastly, identified absences were used to develop recommendations on ways to improve the scientific and management value of the current monitoring network. This document comprises the first of these steps for the SRWRC portion of the SAIL projects. It consolidates all the CMs developed by the SAIL synthesis team and their associated narratives. [doi:10.7289/V5/TM-SWFSC-586(http://doi.org/10.7289/V5/TM-SWFSC-586)]
Author: Noble Hendrix Publisher: ISBN: Category : Chinook salmon Languages : en Pages : 27
Book Description
In this document, we describe a strategy for quantitatively evaluating how Federal Central Valley Project (CVP) and California State Water Project (SWP) management actions affect Central Valley Chinook salmon populations. Examples of management actions include changes in water project operations, addition or removal of barriers, and a variety of habitat restoration initiatives. The analytical framework consists of linking and applying hydrological, hydraulic, water quality, and salmon population models.
Author: U.S. Fish and Wildlife Service. Northern Central Valley Fish and Wildlife Office Publisher: ISBN: Category : Chinook salmon Languages : en Pages : 82
Author: Rosemarie Lingad Dimacali Publisher: ISBN: Category : Languages : en Pages : 102
Book Description
Sacramento River Winter-run Chinook Salmon (salmon) populations are declining and have been classified as an endangered species since 1994. Populations are sensitive to water temperatures and flow, both of which have changed due to hydraulic operations, and may continue to change in response to climate change. The purpose of this study is to estimate changes in salmon populations in response to a hypothetical climate change scenario using computer models. For two hypothetical climate scenarios, flow data for California's water system have been simulated and made publicly available as part of Department of Water Resource's 2011 State Water Project Delivery Reliability Report. The climate scenarios are: (1) historical climate conditions, and (2) medium-to-high emissions and air temperature changes (a 2050 level of development, A2 greenhouse gas level of emissions). For this study, DWR's flow data, based on 80 years of historical hydrology, and the associated temperatures projected by the ECHAM-5 climate model were used to simulate water temperatures, salmon mortality rates, and salmon production in the upper Sacramento River between Keswick Dam and Red Bluff Dam. The models used in this study -- the Sacramento River Water Quality Model (SRWQM) and the Salmonid Population Model (SALMOD) -- are the same models used by the U.S. Department of Interior Bureau of Reclamation (USBR). SRWQM results show that climate change causes a 3 ̊F increase in maximum water temperatures. SALMOD results show water temperature changes affect the salmon population significantly more than flow. In typical years, calculated salmon mortalities were not changed significantly by climate change (CC). In contrast, when conditions were unfavorable, salmon mortalities were substantially higher under the CC scenario and these unfavorable conditions happened with greater frequency.
Author: Sean Windell
Author: Noble Hendrix![Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] PDF](https://books.google.com/books/content/images/frontcover/ZBo-3fXqx-YC?fife=w80-h100)
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Author: Robert Glenn Kope
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Author: U.S. Fish and Wildlife Service. Northern Central Valley Fish and Wildlife Office
Author: Rosemarie Lingad Dimacali
Author: Robert F. Raleigh
Author: Cyril J. Michel
Author: Randall L Brown