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. . . . . . . . . . . to be delivered in 30-45 days. Suggestions on implantation-suture techniques' were solicited .from a number of individuals who had successfully completed simi~ lar studies. The major contributions were: William Klontz and Robert White, Idaho State University; Charles Ziebell, University of Arizona; and Ronald Goede, Utah Division of Wildlife Resources. Suturing methods were demonstrated by a physician/surgeon, Dr. Thomas Hannum, Brigham City, Utah. Practice of suture and implantation techniques was conducted at the Utah Division of Wildlife Re- sources, Logan Experimental Hatchery, under the supervision of Ron Goede. Utah suckers (Catostomus ardens) were used as test fish. Additional testing (described below) of surgical techniques was conducted in the field before a final method was decided on (Appendix). Since radio equipment was not expected until May, discussions between BID/WEST, the Contracting Officers (Harvey Doerksen and Carl Armour), and other FWS personnel (Bill Miller) concluded that field collection of adult Colorado squawfish (Phases II and III) should proceed so that fish would be available when the telemetry equipment arrived. This alteration in the planned sequence of the study was initiated to conserve time and money and increase chances of successful completion. The order in which the phases were actually conducted and the work that was accomplished in each phase are surrmarized below in chronological se- quence. APRIL 22 THROUGH 30 - START PHASES II AND III During this period, an extensive electrofishing effort was exerted in the primary study site in an attempt to capture adult squawfish suitable for implant- ation of radio tags. Although many squawfish were captured, it soon became ob- vious that fish exceeding 1362 g (3 lbs) in weight were extremely rare, and that the hoped-for 2270 g (5 lbs) fish would probably not be captured. Based upon the 6