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<br />located in Etter's Pond near Palisade, Colorado, was determined to be dominated by potential <br />siblings from a very small number of parents, and potentially hybridized with flannelmouth <br />sucker (Genetics Panel, Colorado River Recovery Program, 1994). Therefore, mating <br />crosses between two individual fish from Etter's Pond was determined to be genetically <br />unacceptable due to inbreeding risks. The Recovery Program approved development of a <br />"blended stock" of razorback to serve as the broodstock for the Colorado and Gunnison <br />rivers. This . stock was fonned using razorback sucker from the Colorado River ann of Lake <br />Powell (4 fish), the San Juan arm of Lake Powell (4 fish), riverine fish from the upper <br />Colorado River (4 fish), and Etter Pond (3 fish). A captive spawning strategy for these fish <br />is described in Burdick et al. (1995) following the Recovery Program's Genetics <br />Management Guidelines (Williamson and Wydoski 1994). <br /> <br />Bonytail are represented by only one captive broodstock that is currently kept at <br />Dexter National Fish Hatchery in New Mexico. Some of these fish are also being held at <br />Wahweap State Fish Hatchery in Utah for reintroduction and broodstock development <br />purposes. Since these fish are the descendants from limited numbers of wild fish taken from <br />Lake Mohave, and no more viable adult bonytail are currently available from the wild stock <br />remaining in Lake Mohave, these fish represent the only genetic material left from which to <br />base a propagation and reintroduction program. <br /> <br />For Colorado pikeminnow, broodstock development was initiated in 1991, and 17 <br />family lots currently exist from that effort. Due to the relatively "stable" status of Colorado <br />pikeminnow populations in Upper Basin rivers (Czapla 1997, McAda et al. 1994, McAda et <br />al. 1996), and the limitations of hatchery and rearing facilities within the Program over the <br />past 6 years (Wydoski 1994, Czapla 1991), no further broodstock development has occurred <br />within the 5 x 5 breeding matrix, nor have any stocking plans been developed to use progeny <br />from the existing brood stock held at Horsethief State Wildlife Area near Grand Junction, <br />Colorado. <br /> <br />Sixteen humpback chub were collected in September 1995 at Black Rocks from the <br />Colorado River in Colorado near the state line. The pUlpOse of this collection was to create <br />a refugia population to safeguard genetic material in the event of a catastrophic loss in the <br />Black Rocks population. No broodstock development or reintroduction objectives have been <br />identified for humpback chub in the Upper Basin due to the relative stability of five existing <br />populations in the Yampa, Desolation-Gray, Black Rocks, Westwater and Cataract Canyon <br />sites. <br /> <br />To date, stocking and propagation planning within the Recovery Program has <br />proceeded on a reach by reach basis for select species. One of the recurring problems for <br />guidance and planning within the Recovery Program has been the identification of "long- <br />term" fish needs for propagation (beyond the upcoming year), and identification of facility <br />requirements to meet propagation needs for anticipated restoration stocking plans. This plan <br />is intended to describe restoration stocking needs anticipated for the listed fish species for all <br />candidate rivers or river reaches within the Upper Basin in the state of Colorado. Stock <br /> <br />2 <br />