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<br />9 <br /> <br />policy on controlled propagation. Developing the broodstock should not compromise the <br />viability of any extant aggregations (i.e., it may be appropriate only to collect gametes or <br />YOY from the mainstem aggregations). Gametes, YOY, or adult fish may be collected <br />specifically for a new captive breeding population following development of the <br />comprehensive plan and genetic analysis. The disposition and use of the existing <br />humpback chub at Willow Beach National Fish Hatchery must be determined, and may <br />include research or serving as part of a captive breeding population. <br /> <br />5.0 PROPOSED PROJECTS AND IMPLICATIONS TO OTHER <br />RESOURCES FROM IMPLEMENTATION <br /> <br />The Ad Hoc Committee developed a number of proposed projects to address threats to <br />humpback chub, included as Appendix C, and a timeline chart, included as Appendix D. <br />Potential completion of a TCD on Glen Canyon Dam in spring 2007 would create a <br />major landmark in terms of management actions, research, and monitoring. <br /> <br />Implementation of management actions to benefit the humpback chub may impact other <br />resources in Grand Canyon. These impacts may occur as a result of redirected efforts and <br />funding of humpback chub research and monitoring. Implementation of these <br />management actions must be done consistent with the mission and management <br />objectives of the GCDAMP. Management actions recommended in this report are <br />intended to complement and support the mission of GCDAMP, but it is also recognized <br />that implementing a part or all of these management actions will likely require additional <br />funding. <br /> <br />LITERATURE CITED <br /> <br />Douglas, M.E. and P.c. Marsh. 1996. Population estimates/population movements of <br />Gila cypha, an endangered cyprinid fish in the Grand Canyon region of Arizona. <br />Copeia 1996: 15-28. <br /> <br />Evans, P. 1993. A "recovery" partnership for the upper Colorado River to meet ESA <br />Section 7 needs. Natural Resources and Environment 71:24-25. <br /> <br />Grand Canyon Monitoring and Research Center (GCMRC). 2003. An overview of status <br />and trend information for the Grand Canyon population of humpback chub, Gila <br />cypha. Prepared by the Grand Canyon Monitoring and Research Center for the <br />Glen Canyon Dam Adaptive Management Work Group, Flagstaff, AZ. <br /> <br />Haines, B. and T. Modde. 2002. Humpback chub monitoring in Yampa Canyon, 1998- <br />2000. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River <br />Endangered Fish Recovery Program, Denver, CO. <br /> <br />Hudson, M.l. and l.A. Jackson. 2003a. Population estimates for humpback chub (Gila <br />cypha) and roundtail chub (Gila robusta) in Desolation/Gray Canyons, Green <br /> <br />98800 <br />