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<br />. <br /> <br />1993 BudQet <br /> <br />UOWR <br />$27,000 <br />5,000 <br />_ 3,000 <br />$35,000 <br /> <br />LFL <br />$27,000 <br />5,000 <br />3,000 <br />$35,000 <br /> <br />-Labor <br />-Travel <br />-Equipment <br />-Total <br /> <br />-Grand Total <br /> <br />$70,000 <br /> <br />StudY #2. Assessment of Colorado sQuawfish nursery habitat in the Green <br />River. <br /> <br />OescriDtion of work <br />An ongoing study which is under the lead of UDWR. The primary goals <br />are to determine the relationship between Colorado squawfish nursery <br />habitat availability and recol1l1lended flow releases from FGO, and <br />relationships between nursery habitat availability and habitat use. <br />Objectives include assessing applicability and usefulness of <br />videoimagery and conducting a comparison of the information <br />collected with data gathered by ISMP to assess ways of refining <br />standardized monitoring procedures and making optimal use of data <br />currently being collected. In addition, improved definition of <br />habitat features based on fluvial geomorphological processes will be <br />developed. Reclamation will assist UDWR by providing requested <br />releases from FGD whenever possible and providing necessary support <br />and expertise for conducting videoimagery research. <br /> <br />Methods <br />Work will be conducted in the Jensen-Ouray and Mineral Bottom areas <br />(Green River). ISMP will collect data on the late sUl1l1ler/fall <br />relative abundance and size of age-O Colorado squawfish (and other <br />co-occurring fishes) in backwater habitats in representative <br />reaches. Most age-O Colorado squawfish of sufficient size for field <br />identification will be released after capture; small sub-samples <br />will be preserved (ethanol) for laboratory studies on age, <br />condition, etc. Measurement of selected physicochemical parameters <br />will be conducted. Videoimaging of nursery habitats will be <br />conducted concurrently. <br /> <br />Rationale <br />This study will provide a basis for determining the influence of the <br />high spring test flows on the formation and maintenance of Colorado <br />squawfish nursery habitat and the subsequent biological response by <br />Colorado squawTish in the Green River. The study is also important <br />for providing a basis for overwinter survival studies and refining <br />the sUl1l1ler/fall recol1l1lendations for operation of FGD. <br /> <br />Deliverables <br />UDWR will provide annual reports that will document the status of <br />research relating to the study's goals and objectives and a final <br />report upon completion of the project. <br /> <br />21 <br />