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1 1 H I bonytail > 30 cm into Lake Mohave (USFWS 1994b). Based on our current knowledge, most of the fish <25 cm were eaten by predators or otherwise perished because of their small size. Larger fish have either been eaten, failed in some other way, or have yet to enter the catch (Minckley and Thorson 2003). Annual week-long trips have been made to Lake Mohave during the spring since 1980 to collect additional bonytail broodstock. These trips generally resulted in few or no bonytail collected,' although occasionally ten or more fish were taken (Minckley and Thorson 2002). In addition to these trips, in 2001 and 2002, collecting efforts for larger fish were expanded to five weeks. One large 52 cm bonytail was collected in 2002 and transferred to Willow Beach National Fish Hatchery. It was later transported to Dexter National Fish Hatchery but died enroute (Minckley and Thorson 2003). Another five week effort will be made in 2003 to collect bonytail for broodstock. Applicable Recovery Goals and Management Strategies: ' Recovery Goal. Maintain a genetic refugia and/or self-sustaining population while moving towards recovery. ' Downlisting Criteria: 1. Genetic variability of bonytail identified and a genetic refuge ' (e.g. in Lake Mohave, Lake Havasu, or other suitable locations) is maintained over a 5-year period. 1 u 2. Two self-sustaining populations (e.g., mainstem and/or tributaries) are maintained over 5-year period, starting with the first point estimate acceptable to the Service, such that for each population. a. The trend in adult (age 4+; >250 mm TL) point estimates does not decline significantly, and b. Mean estimated recruitment of age-3 (150-249 mm TL) naturally produced fish equals or exceeds mean annual adult mortality, and c. each point estimate exceeds 4,400 adults (MVP). Delisting Criteria: 21