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<br />. <br /> <br />. <br /> <br />No.: ASDinall-C <br />(for MC use) <br /> <br />RECOVERY IIIPLEII1!:IlTATIOK PROGRAM <br />POR THB ENDANGBRED PISB SPECIES <br />III THB UPPER COLORADO RIVER BASIK <br /> <br />PY-1994 <br />SCOPB-OP-WORJt <br />RBSBARCB PROPOSAL <br /> <br />Lead Agencies: Utah Wildlife Resources <br />Fish and Wildlife Service <br /> <br />Cateaorv (check one): <br /> <br />Submitted by: Leo Lentsch <br />Utah Wildlife Resources <br />1596 West North Temple, <br />Salt Lake City, UT 84116 <br />(801) 538-4756 <br /> <br />-X- Ongoing project <br />Requested new start <br />Unsolicited project <br />OUtside funding <br /> <br />Frank K. Pfeifer <br />U.S. Fish and Wildlife Service <br />529 25-1/2 Rd, Suite 8-110 <br />Grand Junction, CO 81505 <br />(303) 245-9319 <br /> <br />Date: April 30, 1993 <br /> <br />I. Title of Proposal: <br /> <br />Aapinall Studiea. Evaluation of Gunniaon River flow aanipulation upon <br />availability and quality of nuraery babitat for COlorado aquawfiab in tbe <br />COlorado River <br /> <br />II. Relationship to Recovery Program/Ranking Factors: <br /> <br />Habitat management, monitoring of Colorado squawfish <br /> <br />III. Study Goals, Objectives, End Product: <br /> <br />To determine current status and characteristics of reproductive success by <br />Colorado squawfish in the upper mainstem Colorado River and the effect of <br />experimental flows in the Gunnison River created within the Aspinall Study <br />Plan. <br /> <br />To determine the relationship between habitat availability at recommended <br />releases from the Aspinall unit on the Colorado River. <br /> <br />a) to the habitat actually utilized by young Colorado squawfish and <br />b) to the number of young Colorado squawfish present in the Colorado <br />River during the autumn nursery period. <br />c) to determine the effect of flow manipulation and habitat <br />availability upon growing season and size of Colorado squawfish <br />young-of-the-year as it relates to potential overwinter survival. <br /> <br />To coordinate closely with further studies on the operation of the <br />Aspinall unit as they are developed to ensure collection of all pertinent <br />data and avoid duplication of effort. <br /> <br />19-C/page 1 <br />