再生水产养殖：自然积极水产养殖的环境和经济效益（英）2025

Regenerative Aquaculture: The Environmental andEconomic Benefits of Nature-Positive AquaculturePublic Disclosure Authorized INTEGRATING AQUACULTURE INTO LANDSCAPES AND SEASCAPESCASE STUDY REGENERATIVE AQUACULTURE THE ENVIRONMENTAL AND ECONOMICBENEFITS OF NATURE POSITIVEAQUACULTURE 2025 CONTENTS ACKNOWLEDGEMENTSIXGLOSSARYXIABBREVIATIONSXVEXECUTIVE SUMMARYXVIITHE CHALLENGE AND OPPORTUNITYXVIIAIMSXVIIORGANIZATION OF THE REPORTXVIIIFINDINGS AND INSIGHTSXX1CONCEPTS UNDERLYING AN INTEGRATED LANDSCAPE AND SEASCAPE APPROACH IN AQUACULTURE1BACKGROUND2WORLD BANK PRIORITIES AND GOALS3CREATING AN ENABLING ENVIRONMENT5WORLD BANK INITIATIVES THAT SUPPORT REGENERATIVE AQUACULTURE, ECOSYSTEM SERVICES,BIODIVERSITY FINANCE, AND PRIVATE SECTOR MOBILIZATION5STRATEGIC PRIORITIES IN WORLD BANK PROJECTS5ENVIRONMENTAL BENEFITS AND ECOSYSTEM-BASED AQUACULTURE62ECOSYSTEM SERVICES PROVIDED BY AQUACULTURE13BACKGROUND14EVIDENCE AND EXAMPLES OF ECOSYSTEM SERVICES FROM AQUACULTURE18INCORPORATING AQUACULTURE’S ENVIRONMENTAL BENEFITS INTO GLOBAL SUSTAINABILITY TARGETS22BRIDGING GLOBAL ECOSYSTEM SERVICES WITH LOCAL COMMUNITY BENEFITS23A REGIONAL VIEW OF THE POTENTIAL OF ECOSYSTEM SERVICES24EMPOWERING WOMEN IN AQUACULTURE: ADVANCING SOCIOECONOMIC EQUITY, FOOD SECURITY, ANDECOSYSTEM SERVICES25SOCIAL AND POLITICAL CHALLENGES IN IMPLEMENTING INTEGRATED AQUACULTURE263FINANCING ECOSYSTEM SERVICES29BACKGROUND30EXPANDING AND DIVERSIFYING FINANCING MECHANISMS31POLICY AND INVESTMENT FRAMEWORKS32THE PATH FORWARD: A CALL FOR STRATEGIC AND INCLUSIVE FINANCING32CORPORATE-FACING MARKET MECHANISMS INVOLVING TRADING AND CREDITING32HOW IFC CAN CATALYZE MARKET-BASED SOLUTIONS FOR NUTRIENT AND CARBON TRADING36CONSUMER-FACING MARKET MECHANISMS TO DRIVE FINANCING37IFC’S STRATEGIC ROLE IN DRIVING SUSTAINABLE AQUACULTURE THROUGH CONSUMER-FACING MARKET MECHANISMS40OVERCOMING CHALLENGES TO CONSERVATION FINANCING40EVIDENCED-BASED DECISION MAKING FOR AQUACULTURE PAYMENTS FOR ECOSYSTEM SERVICES41COMPREHENSIVE ANALYSIS OF FINANCING MECHANISMS FOR ECOSYSTEM SERVICES: SUPPORTING LARGE-AND SMALL-SCALE PRODUCERS44 4NOVEL CASE STUDIES FOR ADVANCING INTEGRATED DESIGN AND ECOSYSTEM SERVICES CASE STUDY 1: SEAWEED AQUACULTURE IN SRI LANKA49CASE STUDY 2: OYSTER AQUACULTURE IN SENEGAL61CASE STUDY 3: INTEGRATED MANGROVE RESTORATION AND AQUACULTURE SYSTEMS IN GUINEA70 5ALIGNMENT WITH WORLD BANK PRIORITIES AND MANDATES79 SUMMARY AND CONCLUSIONS85 REFERENCES APPENDICES APPENDIX A. RESOURCES FOR GUIDING THE DESIGN, MONITORING, AND EVALUATION OFECOSYSTEM SERVICES FROM AQUACULTURE104APPENDIX B. STRUCTURE, FUNCTION, AND CHALLENGES OF INTEGRATED MULTITROPHIC AQUACULTURE105APPENDIX C. CRITERIA FOR NATURE-BASED SOLUTIONS AND AQUACULTURE-BASED EXAMPLES106APPENDIX D. ANALYSIS OF TRUE PRICING IN AQUACULTURE109APPENDIX E. FINANCING APPROACHES EMPLOYED IN AQUATIC SECTORSTHAT COULD BE REPLICATED IN CONSERVATION-BASED AQUACULTURE111APPENDIX F. METHODOLOGY OF THE AQUACULTURE CONSERVATION FINANCING DECISION-MAKING MATRIX113APPENDIX G. IMPLEMENTING INTEGRATED AQUACULTURE IN SRI LANKA114APPENDIX H. CONSIDERATIONS FOR THE IMPLEMENTATION OF INTEGRATED AQUACULTURE—SENEGAL120APPENDIX I. CONSIDERATIONS FOR IMPLEMENTATION OF INTEGRATED AQUACULTURE—GUINEA125 BOXES 1:EXAMPLE IN PRACTICE: MAKING SEAWEED FARMING MORE SUSTAINABLE IN TANZANIA572:EXAMPLE IN PRACTICE: ENABLING PRODUCTIVE SEAWEED FARMING UNDER A FUTURE OF CLIMATE CHANGE, BELIZE593:EXAMPLE IN PRACTICE: VALUING THE ECOSYSTEM SERVICES OF OYSTER AQUACULTURE IN VIETNAM654:EXAMPLE IN PRACTICE: INTEGRATED AND CLIMATE-SMART SHRIMP AQUACULTURE IN INDONESIA725:EXAMPLE IN PRACTICE: TAKING A VALUE CHAIN APPROACH TO DEVELOPMENT OF SUSTAINABLE, LOW-CARBONSHRIMP, ECUADOR76 FIGURES 1:STRATEGIC PRIORITIES OF THE WORLD BANK GROUP’S MISSION42:ECOSYSTEM SERVICES AND ENVIRONMENTAL CO-BENEFITS OF DIFFERENT SPECIES AND SYSTEMS IN MARINEAQUACULTURE, INTEGRATED AQUACULTURE, AND INTEGRATED MULTITROPHIC AQUACULTURE73:INTEGRATED MULTITROPHIC AQUACULTURE: FARMING SPECIES OF DIFFERENT TROPHIC LEVELS TO TAKE ADVANTAGEOF ORGANIC AND INORGANIC NUTRIENTS THAT THE VARIOUS ORGANISMS MAKE AVAILABLE114:EIGHT INTERCONNECTED CRITERIA OF THE INTERNATIONAL UNION FOR CONSERVATION OF NATURE AND NATURALRESOURCES GLOBAL STANDARD FOR NATURE-BASED SOLUTIONS155:CONTINUUM OF HABITAT AND BIODIVERSITY EFFECTS FROM AQUACULTURE, FROM NEGATIVE TO NEUTRAL TO POSITIVE,DEPENDING ON SPECIES, EQUIPMENT, AND FARM MANAGEMENT PRACTICES USED166:DRIVERS AND ENABLERS OF ECOSYSTEM SERVICES AND ENVIRONMENTAL BENEFITS ARISING FROM AQUACULTURE187:MODELED ESTIMATES OF POTENTIAL EMISSIONS AVOIDED BY FARMING 10 SQUARE KILOMETERS OFGRACILARIAINSRI LANKA IN A RANGE OF PRODUCT REPLACEMENT SCENARIOS548:MODELED ESTIMATES OF POTENTIAL AVOIDED EMISSIONS FROM FARMING 10 SQUARE KILOMETERS OFULVAIN SRI LANKA IN A RANGE OF PRODUCT REPLACEMENT SCENARIOS559:NEGATIVE AND POSITIVE IMPACTS OF BIVALVE AQUACULTURE SYSTEMS ON BLUE CARBON HABITATS64 MAPS 1:ECOREGIONAL-SCALE RESTORATIVE AQUACULTURE POTENTIAL, WEIGHTED AT A