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I Goals, Objectives and Hypotheses <br />GOAL - TO RESTORE AND ENHANCE NATURAL FLOODPLAIN HABITATS AND FUNCTIONS THAT <br />SUPPORT RECOVERY OF NATIVE FISHES (ESPECIALLY THOSE THAT ARE ENDANGERED) IN THE <br />UPPER COLORADO RIVER BASIN THROUGH SELECTED FLOODPLAIN RESTORATION VIA LEVEE <br />REMOVAL <br />LEVEE REMOVAL OBJECTIVES <br />1. RECONNECT SELECTED FLOODPLAINS WITH CHANNEL <br />2. ASSESS LEVEE REMOVAL AS A METHOD FOR FLOODPLAIN RECONNECTION <br />3. EVALUATE SYSTEM RESPONSES TO LEVEE REMOVAL <br />4. USE MANIPULATED SITES (E.G., OLD CHARLIE) TO ASSESS THE IMPORTANCE OF <br />TIMING AND DURATION OF INUNDATION <br />5. DESIGN AND HSAPLEMENT ADAPTIVE MANAGEMENT STRATEGIES <br />SPECIFIC HYPOTHESES <br />Hl: FLOODPLAIN HABITATS RESULT IN AN INCREASE IN FOOD RESOURCES <br />AND AVAILABLE HABITAT FOR NATIVE FISHES <br />H2: TERRACES AND DEPRESSIONS EXHIBIT DIFFERENT DYNAMICS WITH <br />RESPECT TO THE NATIVE FISH COMMUNITY DUE TO DIFFERENCES IN <br />FOOD SUPPLY AND TIMING AND DURATION OF INUNDATION <br />H3: TERRACES AND DEPRESSIONS PRODUCE DIFFERENT CONDITIONS FOR THE <br />SURVIVAL AND PRODUCTION OF ENDANGERED NATIVE FISHES BECAUSE <br />OF DIFFERENCES IN PREDATION RATES BY NONNATIVE AND/OR OTHER <br />NATIVE FISHES <br />' H4: THE INTERACTION BETWEEN NONNATIVE FISH PREDATOR USE AND <br />FLOODPLAIN GEOMORPHOLOGY (DEPRESSION VS TERRACE) WILL RESULT <br />i? IN CHANGES IN THE COMPOSITION OF THE FISH COMMUNITY