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001726 3 Focused Support for Humpback Chub Actions - Several activities were implemented during FY 2003-2005, related to humpback chub. Some of the proposed actions were deemed to be either heading to completion in FY 2005, or were projects not sufficiently well developed to have been implemented yet. Pending completion of the Humpback chub plan by the Adaptive Management Work Group, the GCMRC proposes that funds for concurrent population estimates be budgeted in future work plans until such time that a final determination is made about whether such work needs to be implemented. If such estimates are not deemed essential to the program, then the funds become available for support of other research and monitoring activities, such as ongoing implementation of experimental treatments. In the FY 2006 work plan, the GCMRC proposes a balanced fiscal approach to science programming that continues focused research tied to development of a core monitoring plan, as well as continued implementation of experimental non-flow treatments outlined in the 2002 experimental plan. The Center contends that this approach is the most logical strategy to follow until such time that additional research and monitoring plans are developed and adopted for implementation under available funding. GEOGRAPHIC SCOPE The geographic scope of the Glen Canyon Dam Adaptive Management Program (GCDAMP) is the Colorado River main stem corridor and interacting resources in associated riparian and terrace zones, located primarily from the forebay of Glen Canyon Dam to the western boundary of Grand Canyon National Park (Figure 1.1). It includes the area where dam operations impact physical, biological, recreational, cultural, and other resources. The scope of Adaptive Management Program activities may include limited investigations into some tributaries (e.g., the Little Colorado and Paria Rivers). The lateral scope is an issue of ongoing research and investigation to determine where the effects of dam operations are located along the floodplain and where opportunities exist for mitigation of dam operations (e.g., sediment in the Paria River, or humpback chub breeding habitat in the Little Colorado River). The Adaptive Management Program may do research outside the geographic scope defined above to obtain needed information. Such linkages with other areas "should be made on a case-by-case basis, considering ecosystem processes, management alternatives, funding sources, and stakeholder interests," (NRC, 1999:43; Loveless, 2000). GCMRC FY2006 Annual Work Plan (Draft February 15,2005)