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<br />UMe. <br /> <br />not necessarily an indication of which lands will pass all of <br />the tests or for which lands mutually acceptable agreements can <br />be reached, <br /> <br />Objective 3. Evaluate the response of the river ecosystem (including the <br />response of native and nonnative fish populations) to <br />reconnection of the floodplain to the main channel of the <br />river, <br /> <br />There are three scales of evaluation in the Floodplain Habitat <br />Restoration Program: <br /> <br />-Site-specific evaluation. to answer questions such as "What <br />fishes are using the floodplain habitats? What fishes are <br />reproducing in the habitats? What are the effects of levee <br />removal on the immediate area?" <br /> <br />-Segment-specific evaluation, to answer questions such as "What <br />happens to fish species composition, distribution, and relative <br />abundance in the river adjacent to a functioning series of <br />floodplain habitats? What are the effects of levee removal on <br />the river segment?" <br /> <br />-Basin-wide evaluation to monitor/evaluate effects of <br />restoration activities on endangered. native. and nonnative <br />species status and trends. and effects on ecosystem macro- <br />parameters, <br /> <br />In each case, "success" wi 11 be defined primarily as the <br />positive response of razorback suckers and other endangered <br />fishes to habitat restoration activities, <br /> <br />Objective 4. Conduct site-specific experimental manipulations. <br /> <br />Old Charlev Wash <br /> <br />Old Charley Wash is a floodplain depression that was restored <br />for testing hypotheses on floodplain habitat and razorback <br />restoration, It has inlet and outlet water control structures, <br />fish screens to allow access of small fishes but prevent access <br />by larger fishes. and a collection kettle for more-efficient <br />harvesting of fishes. <br /> <br />IB <br />