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<br /> <br />lJJ2~u5 <br /> <br />TABLE OF CONTENTS <br />PREFACE Ii <br />ACKNOWLEDGMENTS iii <br />EXECUTIVE SUMMARY Iv <br />SECTION I. INTRODUCTION 1 <br />SECTION II. SCOPE OF THE NONNATIVE PROBLEM 4 <br />General 4 <br />Endemic Colorado River Fishes 4 <br />Decline of Native Fishes 5 <br />Introduction of Nonnative Species 7 <br />Effects of Nonnatives on the Endemic Colorado River Fauna 8 <br />Nonnative Species of Concern 12 <br />SECTION III. INSTITUTIONAL FRAMEWORK 13 <br />General 13 <br />Federal Agency Responsibilities 13 <br />Endangered Species Act 14 <br />Nonindigenous Soecies Act 14 <br />Lacey Act 15 <br />Executive Orders and Policy Statements 15 <br />State Responsibilities and Regulations 17 <br />SECTION IV. NONNATIVE FISH CONTROL 19 <br />Conflicts, Attitudes and Progress 19 <br />vii <br />