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<br />recolonization, and monitoring needs associated with <br />reintroduction and augmentation of these endangered <br />fishes in the upper mainstem Colorado River, <br /> <br />End Product: <br /> <br />Completion of the above objectives will result in a draft plan <br />for reintroduction and augmentation of Colorado squawfish and <br />complement an existing razorback sucker augmentation plan <br />within the upper mainstem Colorado river. The report will <br />provide data assessing the suitability of available habitat <br />and genetic material and discuss concerns or perceived <br />limitations. This document will provide the basis for <br />decisions within the RIP process to approve or modify <br />reintroduction and augmentation of the species and target <br />habitat development in the desired river reaches, <br /> <br />VII. How is this study contributinq to recovery?: <br /> <br />See End Product above, <br /> <br />Are the studv ooals and obiectives beinq met?: <br /> <br />Yes, although no progress was made on this project in <br />1992, Characterization of the river habitats were <br />conducted in summer and fall of 1993, Quantification of <br />the fish population is planned for spring 1994, <br /> <br />VIII. FY 92 Tasks and Deliverables: <br /> <br />The approach and methods described below have been evaluated <br />against recommendations and guidelines provided in Williams et <br />al. (1988) and Griffith et al. (1989) for the translocation <br />and introduction of threatened and endangered species, These <br />documents were provided through the Propagation/Genetics <br />Management Plan. <br /> <br />Task 1: Physical habitat assessment in unoccupied river <br />reaches targeted for release of imprinted, tagged fish, <br /> <br />The targeted site for release of imprinted, tagged <br />Colorado squawfish is the Colorado River between Palisade and <br />Rifle, Prior to translocation of the experimental fish into <br />the unoccupied reach, assessment of seasonally available <br />habitat would be conducted. Flow and temperature regime will <br />be evaluated in the reach at several sites. For physical <br />habitat, ~he assessment focuses on the presence and amount of <br />1) spring backwaters or other low-velocity habitat occurring <br />during high spring flows, 2) complex river channels providing <br />a diversity of main channel and side channel habitat types, 3) <br />summer backwater nursery habitat, and 4) fall pool/deep run <br /> <br />2 <br />