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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />RECOMMENDATIONS <br /> <br />1. <br /> <br />Nonnative, small-bodied cyprinids, common carp, and channel catfish dominate backwater <br />habitats in the Colorado River and should be the primary focus of control actions to reduce <br />their abundance in these potential nursery habitats. Methods of control would impact all <br />nonnative fish species present in these habitats, but measures of success would target these <br />more abundant species. <br />Mechanical removal of nonnative fish from backwaters via seining should be evaluated for <br />short-term benefits to Colorado pikeminnow, razorback sucker, and other native fish <br />species. <br />Mechanical removal of channel catfish and common carp from summer backwaters via <br />trapping or government-controlled commercial-type harvest should be evaluated for <br />effectiveness in reducing these two species. <br />Limiting the escapement of centrarchids from floodplain ponds and small reservoirs should <br />be continued to reduce development of concentration sites in backwaters, and in <br />anticipation of recovery program objectives to expand available flooded bottomland <br />habitats for endangered fishes. This recommendation is derived more from the perceived <br />increase in centrarchid abundance based on results of more recent studies rather than the <br />evidence presented in this study alone. <br /> <br />2. <br /> <br />3. <br /> <br />4. <br /> <br />43 <br />