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<br />002756 <br /> <br />4. Bonytail broodstock have been limited to four-family lots. Fiye adult bonytail are held in refuge <br />at Horsethief, along with the four-family lots. No additional development of bonytail <br />broodstock has taken place due to lack of facilities and higher priority given to razorback <br />sucker. <br /> <br />5. Fifteen adult humpback chubs from Black Rocks are being held in refugia at Horsethief No <br />plans are being implemented for development ofa brood stock at Horsethief No brood stock <br />have been developed for four other presumptive stocks of humpback chub, and none are in <br />refugia (Yampa, Desolation-Gray Canyon, Cataract Canyon, Westwater Canyon). <br /> <br />6. Four of the 25 required family lots have been produced for the Middle Green River razorback <br />suckers at Ouray. Development of middle Green River razorback sucker brood stock at Ouray <br />during FY 97 will be limited to no more than six to eight family lots due to lack of intensive <br />culture facilities and limited pond space. No estimate is available as to when Ouray will achieve <br />its 25 required family lots for the middle Green razorback sucker population. <br /> <br />7. Excessive demand is being placed on the facilities at Ouray due to space requirements, <br />increasing size of fish being held, and limited release to the wild. The Ouray facility is <br />overloaded. Losses due to disease and stress can be expected. <br /> <br />8. The razorback sucker broodstocks for the Upper Colorado River is based on mixed <br />presumptive stocks, including those from the Upper Colorado River, Etter Pond in the Upper <br />Colorado River, Colorado River arm of Lake Powell, and San Juan arm of Lake Powell. This <br />is consistent with the recommendations of the genetics panel and Upper Basin biologists. <br />Thirty-four family lots of razorback sucker has been developed at Horsethief State Wildlife <br />Area for this presumptive stock. <br /> <br />9. Genetic surveys of the Gila (bonytail, humpback, and roundtail chubs) will be completed in <br />1997. <br /> <br />10. Genetic surveys of the razorback sucker indicate that a) there are no significant genetic <br />differences among razorback sucker populations in the upper basin, and b) there is more genetic <br />diversity among populations in the lower basin than in the upper basin. These results are <br />preliminary. Final results are expected in 1997. <br /> <br />II. Preliminary results of Colorado squawfish genetic surveys indicate that there are no genetic <br />differences among Colorado squawfish in the upper basin. These surveys will be completed <br />in 1997. <br /> <br />12. The State of Colorado is proceeding with plans to develop a native species aquatic facility in <br />the San Luis Valley. No time frame is presently available for construction and operation of this <br />facility. The role ofthis facility with respect to Recovery Program needs has not been defined. <br /> <br />13. Approximately 79,000 Colorado squawfish ranging between 2 inches and 7 inches were stocked <br />in the Colorado and Gunnison Rivers between 1980 and 1984. Only five adult survivors have <br />been found during later monitoring efforts. <br /> <br />XII <br />