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~ :i: : , ~,-, ~ <' ~ ,:' 5. Characterization and hatchery populations decisions. (t, comparison of genetically wild and " to facilitate making wise management ~. ".~ " ~.( . ~.:~ 4 . Developing low-risk genetic sampling methods to identify, characterize, and mark discrete populations. Identification of genotypic and phenotypic changes over time and trying to relate those changes to habitat alteration. D. Tasks. study Methods and Approach. The U.S. Fish & Wildlife Service has recently completed a Cooperative Agreement with the smithsonian to conduct the above work over the next four to five years. This work will be conducted as a part of the Upper Colorado River Basin Recovery Implementation Program. Members from the consultation team will be requested to participate on the ad hoc UBRIP work committee. 6. -. ,it' The initial literature review on the status of the Gila taxonomy has begun. A work plan and protocol for collection of fishes is also being completed with a preliminary report due by March 30, 1990. Beginning in Fiscal Year 1990, the program manager will select an ad hoc review panel, the program manager will develop work statements, issue contracts, and review products as they are developed. Humpback chub from the LCR and the mainstem Colorado" . ~ River wlll be included as part of the overall upper basin contracts. }) ~~ ~ ;i..', ,.r~< t... E. Timinq of the Proposed Work. Work on the Gila taxonomy issue has already begun with an initial/literature review due by October 1, 1989. Proposed efforts in Fiscal Year 1990 are now being reviewed by the Technical Group of the Upper Basin Recovery Implementation Committee. Beginning in Fiscal Year 1991, a three or four-year research program is anticipated to fully answer the Gila taxonomy questions. F. Estimated Costs. ir~ [% :,.of. [r~ ~.:.; ~V" ,>:. Fiscal Year 1989 Fiscal Year 1990 Fiscal Year 1991 ............ . No specific funding amount is attributable to Grand canyon work ~ -;::z '~.'!... ,. ',' ~~I The funding for this conservation measure is being programmed totally as part of the on-going Recovery Implementation Program. G. Products Expected. End products of this conservation measure will include an accurate Gila taxonomy evaluation, field methods to allow discrimination among and between species, including the identification of hybrids, a system of low-risk tissue sampling, and a genetic baseline data set on wild and hatchery populations that will serve as the foundation for future propagation and genetic management. .. ~>;: .,':- 5 I