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sucker was recaptured in the San Juan arm that was released in the San Juan River near Bluff, Utah during November, 1994. V. Species Priorities for Propagation of Upper Basin Endangered Fishes The razorback sucker was assigned "Priority 1" among the four endangered fishes because all stocks are declining and the numbers of fish in some stocks is extremely low (Wydoski 1994a). This species has been extirpated from part of its historic range in the Upper Colorado River Basin. Although some recruitment has been documented in the Middle Green River stock (Modde et al. 1993), it is insufficient to maintain a self-sustaining population. The Biology Committee recommended that two broodstocks of razorbacks be developed immediately: Middle Green River and Upper Colorado River. The Biology Committee also recommended that the Middle Green River stock be stabilized and reintroduction stocking be done to re-establish the Upper Colorado River stock. An augmentation stocking plan for the razorback sucker for the Middle Green River (Upper Basin Recovery Program 1995a) and a reintroduction stocking plan for the Upper Colorado River (Upper Basin Recovery Program 1995b) were developed during 1995. The bonytail was assigned "Priority 2" for propagation activities in the upper basin. This species is extremely rare with only occasional individuals being captured very infrequently and with long distances between captures. Therefore, a broodstock for the upper basin will be developed from Lake Mohave stock that is maintained at the Dexter National Fish Hatchery, New Mexico. A draft plan for bonytail reintroduction stocking in the upper basin has been developed by the Utah Recovery Program participants (Lentsch et al. 1995). Although the humpback chub is considered stable in the upper basin, it was assigned "Priority 3" because the five stocks consist of small, localized populations that occupy deep canyon reaches. Several stocks (Black Rocks and Westwater Canyons of the Colorado River) may be at catastrophic risk, so 'a higher priority was given to this species over the Colorado squawfish (Wydoski 1994). The two stocks in Desolation- Gray Canyon of the Green River and Cataract Canyon of the Colorado River appear to be hybrids between humpback and roundtail chubs (McElroy and Douglas 1995). The Colorado squawfish was assigned "Priority 4" in the upper basin because most stocks are considered stable and recruitment has been documented. This species has been extirpated above barrier dams on the mainstem Colorado River and is extremely low in the Gunnison River above Redlands Irrigation and Power Diversion Dam. Although the species was assigned the lowest priority among the four endangered fishes, the Biology Committee supported the development of a broodstock in 1991 for future augmentation and restoration stocking in the Upper Colorado and Gunnison rivers.