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IN •[lLY t United States Department of the Interior c E BUREAU OF U1ND MANAGEMENT Cp1.ORADO STATE OFFICE ROOM 700. COLORADO STATE SANK oU1LDINQ Is00 BROADWAY OENVER, COLORADO 00202 SEP ? 191 Memorandum N To: Regional Director, Regional 6, Fish & Wildlife Service From: State Director, Colorado Subject: Draft Humpback Chub Recovery Plan We have reviewed subject and make the following comments and suggestions. Present Distribution and Abundance The location and abundance of~humpback chubs is incompletely known, Much additional inventory work needs to be done to establish location and extent of remaining populations. In fact, the Bureau will undertake such an inventory during FY 79 to identify unknown populations which may be effected by our land management practices. This point of incomplete knowledge of humpback chub populations should be stated more clearly in the draft plan. And, especially, identification N-1 of present habitat for the purpose of Critical Habitat designation should not be done until the results are available from the inventory work done by the Bureau during FY 79. Parts of the proposed recovery efforts itemized in the plan are already being undertaken by BLM in Colorado. We presently have under contract aquatic studies pertinent to the recovery plan on the Yampa and White Rivers. We also have funded work to develop a taxonomic description of larval fish forms of endemic species of the Upper Colorado Basin. Agency~Funding Our participation in the recovery effort for this species obviously depends on funds being made available for this purpose by congressional AF-2 appropriation. Our success 1n obtaining these funds for other endangered species (peregrine falcon, Colorado squawfish) has been very poor. .~.~.. S".' 11 X78 52 Save Energy and Yocc Serve America! ~tunufe s~y~ ~