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<br />Task 3 <br /> <br />Task 4 <br /> <br />Complete final report with recommendations for this reach on the <br />effectiveness/feasibility oflarge scale removal efforts on channel catfish. <br /> <br />Complete a Public Involvement Plan during the beginning stages of this <br />project in order to identify and address the public's concerns. PIPI2. <br /> <br />IV. Study Schedule: 1997-98 <br /> <br />V. Relationship to the RlPRAP: <br /> <br />General Recoverv Program Sup!,ort Action Plan <br />1Il Reduce negative impacts of nonnative fishes and sportfish management <br />activities (nonnative and sportfish management) <br />Reduce negative interactions between nonnative and endangered fishes <br />Identify and implement viable active control measures <br />ldentify options (including selective control removal) 10 reduce negative <br />impacts of problem species and assess regulations and options (including <br />harvest) to reduce negative impacts on native fishes from nonnative <br />sportfish <br />Green River Action Plan: Mainstem <br />III Reduce negative impacts of nonnative fishes and sportfish management <br />activities (nonnative and sportfish management) <br />Reduce negative interactions between nonnative and endangered fishes <br /> <br />IlI.A. <br />IlI.A.2. <br />IlI.A.2.a. <br /> <br />1l1.A. <br /> <br />VI. Accomplishments ofFY97 Tasks and Deliverables, Discussion ofInitial Findings and <br />Shortcomings: Considerable effort was expended during the summer of 1997 preparing a <br />press release that explained our methodology, motivation, and expected outcomes of this <br />removal study. The target audience was Green River residents, and pertinent business <br />persons (whitewater rafting concessionaires). An information packet was made available <br />prior to commencing field work. A Public Involvement Plan document has been drafted <br />and is being incorporated into efforts to make the public aware and involved. SEE <br />A IT ACHMENT 1. <br /> <br />SUMMARY OF REMOV AL ACTIVITIES IN THE LOWER GREEN RIVER <br /> <br />The high flows and cool water temperatures during the summer of 1997 delayed the start <br />offield work until July 29, 1997. The Gray Canyon stretch is only eight miles long and <br />due to several areas of steep gradient the study design differed greatly from the <br />concomitant effort in the Uintah Basin. The eight mile stretch was subdivided in to four <br />one-mile study reaches or zones. Two of these study reaches served as controls and two <br />as removal sections with a short buffer zone separating each. Channel catfish were given <br />a site-specific fm clip in each of the control reaches and native fish were either PIT or <br />FLOY tagged. Catfish were removed from the removal sections; native fish were <br />uniquely marked as in the control. sections. All native fish and a sub-sample of non- <br />natives were measured and weighed. Sampling consisted offyke netting (3 nets per mile) <br /> <br />2 <br />