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adult. This additional work has already begun under the scope of work entitled Flow effects on ,oung-of-the-year Colorado squawfish. The majority of these fish are preserved for identification in the laboratory and are available for additional investigations. Data analysis should involve all environmental variables that could affect reproductive success a d survival of Colorado squawfish and the non- native species. These variables should include (but not necessarily be limited to) spring flow, summer flow, winter flow, habitat availability, water temperature, and abundance of other species. Hypothesis 4: The Gunnison River above Redlands Diversion contains a small, but viable Colorado squawfish population. Hypothesis 5: Providing passage around the Redlands Diversion will benefit Colorado squawfish in both the Colorado and Gunnison rivers. Valdez et al. (1982a) collected eight adult-size Colorado squawfish from the Gunnison River above Redlands Diversion during their 1979 to 1981 study: Wick (personal communication) collected several adult Colorado squawfish from the Gunnison River in autumn 1982 sampling effort since that time The river has received very little A thorough evaluation of the present fish community is necessary before management decisions about the Gunnison River can be made. The survey of the Gunnison River should include the section from Delta downstream to the Redlands Diversion (about 55 river miles) and should ------ -- encompass two full field seasons. The study should utilize the same river strata, the same gear types, and the same systematic sampling schedule used by Valdez et al. (1982a). The study should also include extra sampling at 36