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. . 6 3. Razorback sucker workshop Reclamation agrees with this action and will complete the workshop in Fiscal Year 1995. Reclamation's Denver Service Center, Flagstaff office has begun the preliminary planning efforts. Funds for the workshop are included within the Fiscal Year 1995 budget. The process will include assembling a group of experts to evaluate the results of the existing information and to formulate specific areas of concern and future research needs for the Service's use. Reclamation's Grand Canyon Area Office, located in Boulder City Nevada, has jurisdiction over the areas we believe have potential for conservation of the razorback sucker and will participate in this effort. 4. Second Spawning Aggregation of Humpback chub This element has been identified as a common element in the EIS and Reclamation will make every effort to implement it in coordination and cooperation with fishery experts and other stakeholders. A quantitative definition of what will constitute a second spawning aggregation and whether attempts should be made to establish this population in a tributary or the mainstem are needed. The areas which have been previously discussed with the Service are under the jurisdiction of Reclamation's Grand Canyon Area Office. The data needs to accomplish planning efforts have been given consideration i~ the development of the interim monitoring plan. Other Endangered Species Issues Several other issues related to endangered species below GCD also require discussion. We remain concerned about the presence of reproducing populations of non-native fishes and their potential to negatively impact recovery of the HBC through predation and/or competition. We believe it would be prudent to review the management of non-native fish with AGF and the National Park Service. For example, implementation of angling regulations which result in suppression of these species and additional restrictions on stocking should be given greater emphasis. We would also like to address the incidental take statement as it relates to the Kanab ambersnail. Although the RPA (page 35) says "Studies of high steady flows in the spring may include studies of habitat building and habitat maintenance flows." (emphasis added), page 40 indicates that habitat building and maintenance flows are included in the RPA. It is our understanding the Service supports the inclusion of the Beach/Habitat building flows in the Proposed Action. Survey information on the extent and elevation of habitat for this species has been collected recently through a cooperative effort between the Arizona Game and Fish Department (AGF) and Reclamation using the Service's Section 6 (ESA) funds. This data, which was not available during the preparation of the Opinion, indicates that potential habitat totals approximately 836 square meters, including both major plant species within the habitat (monkey flower and water cress). The table on page 25 of the Opinion indicates that 86