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<br />razorback spawning bar. As soon as it has been determined that pre-existing <br />easements/encumbrances on the property will not be affected by Recovery <br />Program construction and management activities, then the transaction will be <br />finalized. Installation of manifolds and pipelines to divert selenium-laden <br />waters to the river and breaching of levees is tentatively scheduled for FY <br />2004. <br /> <br />· Razorback sucker survival and growth in floodplain wetlands - Razorback <br />. sucker and bonytaillarvae were stocked into the Stirrup wetland in April 2002, <br />with nonnative fish species composition/abundance representative of a recently <br />reset (dried up) and newly inundated wetland. By August 13, 2002, larval <br />survival ranged from 0.4% to 1.9%, average length ranged from 2 inches to 3.7 <br />inches. Research in this area of investigation is continuing in 2003. <br /> <br />III. Nonnative Fishes and Sportfishing <br /> <br />Goal: Minimize the impacts of nonnative fishes and incidental take associated with sport <br />fishing on the endangered fishes. <br /> <br />Status: <br /> <br />· New control efforts began in FY 03 to remove channel catfish and smallmouth <br />bass from the Yampa and Duchesne rivers; and channel catfish from the <br />Colorado, White, and Green rivers. FY 03 work follows a treatment/control <br />research approach to evaluate effectiveness in depleting the target nonnative <br />fishes. Evaluation of response of the native fish community to nonnative fish <br />control activities will begin in FY 04. <br /> <br />· Efforts to remove northern pike from the Yampa River and translocate these . <br />fish to off-channel ponds to provide sportfishing opportunities continue to be <br />successful. In 2002,538 northern pike were removed from the Yampa, and <br />most were transferred to nearby public fishing areas. Biologists also removed <br />42 northern pike from the Green River in Utah. <br /> <br />· In late November or early December, biologists will meet to discuss their <br />research findings from 2003 nonnative fish management activities. At that <br />time, the Recovery Program will determine what future directions these <br />projects will take. <br /> <br />· As of April 2003, the Utah Division of Wildlife Resources, Colorado Division <br />of Wildlife, and the Fish and Wildlife Service have removed more than 27,300 <br />channel catfish; 23,800 nonnative centrarchids; and 319,500 nonnative <br />cyprinids from rivers in the Upper Colorado River Basin. <br /> <br />· Construction of Elders Pond was completed on September 19, 2002. The pond <br />was filled during spring 2003. Because oflow flows and logistical constraints, <br />only a few channel catfish from the White and Duchesne rivers were stocked <br />into the pond during 2003. <br /> <br />9 <br />