Report of the First Workshop on the Conservation and - IUCN SSC ...

Table <strong>of</strong> Contents
Page
Introduction 1
Contents and Organization <strong>of</strong> this <strong>Report</strong> 2
1. Background 3
1.1. Indo-Pacific Humpback Dolphins – General 3
1.2. Hong Kong/PRE Population 3
1.3. Western Taiwan Population 4
1.4. Environmental Context 4
1.5. Vulnerability <strong>of</strong> Humpback Dolphin Populations 7
2. Threats 8
3. Scientific Uncertainties 11
3.1. Abundance and Distribution 11
3.2. Trends 12
3.3. Habitat Requirements 12
3.4. Population Discreteness 12
3.5. Movement Patterns 13
3.6. Health Status 13
3.7. Precautionary approach to research methods 13
3.8. Importance <strong>of</strong> carcass salvage and necropsy 13
4. Management Goals and Options for Mitigation 15
4.1. Management Goals 15
4.2. Options for Mitigation 16
4.2.1. Reduced Freshwater Flow into Estuaries 16
4.2.2. Habitat Loss 16
4.2.3. Bycatch in Fisheries 16
4.2.4. Environmental Contaminants 17
4.2.5. Area-based Approaches 17
4.2.6. Captive Breeding for Conservation 18
4.3. Beneficial Effects on O<strong>the</strong>r Species, Including Humans 18
4.4. General Recommendations 18
References 19
Table 1. Threats and information needed to better understand or address <strong>the</strong>m. 21
Table 2. Priority biological knowledge related to conservation goals. 23
Table 3. Mitigation/management options for <strong>the</strong> four main threats 25
APPENDIX 1: WORKSHOP AGENDA 26
APPENDIX 2: LIST OF WORKSHOP PARTICIPANTS AND OBSERVERS 29
APPENDIX 3: ABSTRACTS OF PRESENTATIONS TO THE FIRST SYMPOSIUM
ON THE CONSERVATION AND RESEARCH OF INDO-PACIFIC HUMPBACK
DOLPHINS, SOUSA CHINENSIS, OF THE WATERS OF TAIWAN
APPENDIX 4: RESEARCH ACTION PLAN FOR THE HUMPBACK DOLPHINS
OF WESTERN TAIWAN
APPENDIX 5: THE STOCKHOLM CONVENTION 43
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