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01872 ' Funding for assisting in the development of an LCR management plan is contained in the 2005 GCDAMP budget recommended to the Secretary of the Interior by AMWG. ELEMENT 3 Develop actions that will help ensure the continued existence of the razorback sucker by first sponsoring a workshop within one year following the biological opinion. Following review of the workshop results, the Service will recommend a course of action and develop a Memorandum of Understanding with Reclamation and other entities who may wish to participate. PROGRESS ON ELEMENT 3 Reclamation sponsored a workshop on the endangered razorback sucker on January 11 and 12, 1996. The results of the workshop were sent to participants. including the Service, on February 12. 1996. The Service has not initiated development of the Memorandum of Understanding for razorback sucker management. In the Service's response to Reclamation's third progress evaluation, dated May 27,1999, several action items of interest to the Service were identified. Because the only known extant population of razorback sucker above Hoover Dam is in Lake Mead (Holden and others 2000), we believe these actions should be addressed primarily by the Lower Colorado Region Reclamation office and members of the Lower Colorado River Multi-species Conservation Program. However, we are partially addressing two of the actions-nono native fish control and provision of experimental flows that could affect habitat of razorback sucker in upper Lake Meadothrough the GCDAMP. STATUS OF ELEMENT 3 OnQoinQ. Reclamation has completed the workshop, which was the first step for this element. It is our understanding that the next step for satisfying this element is for the Service to recommend a course of action and to develop a Memorandum of Understanding with Reclamation and other entities who may wish to participate. ELEMENT 4 Establish a second spawning aggregation of humpback chub downstream of Glen Canyon Dam. PROGRESS ON ELEMENT 4 Impediments to establishment of a second spawning aggregation of humpback chub in the Colorado River include unsuitable environmental conditions, e.g., water temperature, and the presence of non-native competitors and predators. As indicated above, under element 1 b, Reclamation made a determination on feasibility of the TCD for Glen Canyon Dam in 2002 (Baron and others 2003) and has initiated environmental compliance necessary for the construction and testing of a TCD at Glen Canyon Dam. Brown trout control in Bright Angel Creek and a feasibility assessment of nononative control in other tributaries are being done by GCNP (Leibfried and others 2003) and Reclamation funded a project conducted by the Arizona Game and Fish Department to evaluate sampling gear for capture of channel catfish and carp in the LCR. Rogers and others (2003a) evaluated the abundance and distribution of non-native predators related 8