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<br />SUMMARY <br /> <br />Endangered fish status, objectives, highlights <br /> <br />Fish species Status Management Recovery highlights <br /> objectives <br />Colorado pikeminnow Since 1991, Approximately Construction of the <br /> pikeminnow numbers 5,500 self. Redlands Fish Ladder <br /> have doubled in the sustaining fish in opened up 57 miles of <br /> Colorado River. In the three different historic river habitat for <br /> Green/Yampa basin, stretches of river. endangered fish. <br /> they are at their <br /> highest since the Completion of two more <br /> early 1980s. passageways will yield <br /> another 55 miles - tripling <br /> Within Colorado, the available habitat for <br /> down. listed from adu~ Colorado pikeminnow <br /> State-endangered to and razorbacks in the <br /> State.threatened. upper basin. <br />Humpback chub Stable in most areas. Approximately In recent years, <br /> 4,800 self- ,researchers have counted <br /> The population at sustaining fish in greater numbers of <br /> Blackrocks, near the five different humpbacks in two <br /> Colorado-Utah state stretches of river. stretches of river. <br /> line, is estimated at <br /> 3,500 fish. <br />Bony tail Before stocking Approximately More than 13,000 bonytails <br /> began, this fish was 4,100 self. have been raised and <br /> nearly extinct in the sustaining fish in stocked since 1996. <br /> upper basin. the Green River. <br /> Another 40,000 bonytail <br /> will be stocked in 1999. <br />Razorback sucker Declining in some Approximately More than 7,500 <br /> areas. 5,300 self- razorbacks have been <br /> sustaining fish in raised and stocked to date. <br /> Population estimate three different <br /> for the Green River is stretches of river. Another 10,000 razorbacks <br /> 500 adult fish. will be stocked in 1999. <br /> <br />Note: Over the past several years, the Recovery Program has mounted an extensive effort to <br />establish state-of-the-alt hatcheries that raise endangered fish and protect them from extinction. <br />These facilities have made it possible to stock the numbers of fish cited in the table above. Many <br />hatchery-raised stocked fish will not survive in the wild, underscoring the need to continue <br />making habitat improvements - such as building fish passageways, improving stream flows, and <br />restOling wetland habitat - initiated by the Recovery Program. Biologists believe these habitat <br />improvements are essential to the success of stocking effOlts and to recovery of endangered <br />Colorado River basin fish. <br /> <br />6 <br />