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Last modified
7/14/2009 5:02:34 PM
Creation date
5/17/2009 11:53:12 PM
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UCREFRP
UCREFRP Catalog Number
9315
Author
Harvey, M. D. and R. A. Mussetter.
Title
Evaluation of the Required Frequency of Bar Forming Events and 2-Dimensional Hydrodynamic Modeling at Colorado Squawfish Spawning Sites in the Lower Yampa Canyon, Colorado.
USFW Year
1996.
USFW - Doc Type
Fort Collins.
Copyright Material
NO
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-Total $37,800 <br />Task 3 An evaluation of Colorado squawfish recruitment. <br />Description of work: <br />Task 3 is an ongoing SDCR project being conducted by the FWS. <br />The Service's primary goal with this study is to determine <br />relative abundance of young Colorado squawfish in relation to <br />seasonal changes and river conditions, including variable flow <br />releases from Flaming Gorge Dam. Specific objectives of the <br />study include, determining behavioral patterns that influence <br />sampling bias; data gaps and future research needs. <br />An evaluation of existing information and field studies using <br />non-lethal marking of wild young Colorado squawfish from the <br />Ouray area in fall will be conducted to assess habitat use and <br />overwinter survival. Results will be used to prepare an issue <br />paper summarizing current knowledge, assessing effectiveness of <br />procedures for predicting overwinter survival relative to <br />different flow conditions, and identifying factors potentially <br />affecting the status of Colorado squawfish in the Green River <br />system. The study will help clarify how sampling bias and <br />behavioral patterns have affected results of past monitoring <br />studies and the impacts of spring runoff patterns on young <br />Colorado squawfish. <br />Deliverables: <br />The Service will submit an annual report by the end of the <br />fiscal year and a final report upon completion of the task. <br />Budget': <br />-Labor $23,700 <br />-Report $ 91000 <br />-Total $32,700 <br />Task 4. Overwinter survival. <br />Description of work: <br />An ongoing SDCR project under the lead of the UDWR (funded by <br />RIP outside of Flaming Gorge Investigations in 1991). The <br />primary goal of this task is to gain an understanding of the <br />relationship between winter river discharges and other important <br />environmental variables and the survival of young fish <br />(particularly Colorado squawfish) in the Green River. The <br />specific objective of the task is to assess overwinter survival <br />'Does not include FWS overhead <br />B3
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