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~ Little Hills State Wildlife Management Area • CDOW 5-FC-CU-DW030 $50,000 ~ A variety of big game habitat and wetland improvement projects were conducted ~ on the Colorado Division of Wildlife Management Area. Willow and cottonwood • plantings were installed to revegetate riparian areas. Springs providing important water sources for big game on high elevation summer ranges were ~ fenced to protect them from livestock trampling and pollution. This action improved the outflow quantities and qualities from the springs. ~ Wetlands were rehabilitated by dredging and developed with new water outlet ~ and control structures. Small riparian wetlands were enhanced with hay bale dams to control erosion, spread water and elevate groundwater tables. ~ Hunter camping areas were installed with primitive toilets and game processing ~ stations to improve public use. ~ 1996 Completed Projects ~ Bonytail Pen Culture Research ~ USFWS 6-AA-CU-FW130 $10,500 ~ The USFWS sponsored this Arizona State University research project at its • Parker Research Station, outside Parker, Arizona. Funds were for purchase and construction of floating pens and other miscellaneous equipment to run the study ~ and for graduate student stipends during the course of the study. The FWS ~ contributed its Office Cove, an isolated inlet off Lake Mohave, bonytail chubs (an ~ endangered fish), and other technical assistance at no charge to this agreement. ~ The study showed that pen rearing of bonytail chubs is viable and provide a ~ relatively inexpensive and care-free method of rearing chubs free of predatory ~ impacts. Moreover, the study revealed that stocking the pens with chubs at • intermediate densities (approximately 18 fish/cubic meter of cage space) with a wide range of fish sizes provides optimal growth potential. These results could ~ have important implications if pen rearing becomes a selected method of rearing ~ bonytail chubs in Lake Mohave or elsewhere. ~ An unpublished manuscript was provided at the conclusion of this study. Title: ~ Sowka, P.A., and P/E. Brunkow and J.P. Collins. 1997. Effects of stocking ~ density and size variability on growth and survival of cage-cultured bonytail chub ~ (Gila elegans), Dept. of Zool. ASU, Tempe AZ. unpubl. ms. 16pp. + tbls. ~ ~ , w ~, H