Impact of Climate Change and Aquatic Salinization on Fish Habitats and Poor Communities in Southwest Coastal Bangladesh and Bangladesh Sundarbans
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World Bank, Washington, DC
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Fisheries constitute an important source
of livelihoods for tens of thousands of poor people in the
southwest coastal region of Bangladesh living near the
UNESCO Heritage Sundarbans mangrove forest, and they supply
a significant portion of protein for millions. Among the
various threats fisheries in the southwest coastal region
and Sundarbans mangrove forest will face because of climate
change, adverse impacts from increased aquatic salinity
caused by sea level rise have been identified as one of the
greatest challenges. This paper focuses on 83 fish species
consumed by poor households in the region. Using the
salinity tolerance range for each species, 27 alternative
scenarios of climate change in 2050 were investigated to
assess the possible impacts of climate change and sea level
rise on aquatic salinity, fish species habitats, and the
poor communities that consume the affected fish species. The
results provide striking evidence that projected aquatic
salinization may have an especially negative impact on poor
households in the region. The estimates indicate that areas
with poor populations that lose species are about six times
more prevalent than areas gaining species.
Palabras clave
FISH PRODUCTION, FISH, FISH HABITAT, LAND USE ZONING, DETERMINANTS, THRESHOLDS, ADVERSE IMPACTS, ADAPTIVE MANAGEMENT, FISH RESOURCES, FISHERIES PRODUCTION, COASTAL RIVERS, HABITATS, FRESHWATER FISHES, CRITICAL HABITATS, FISH BIOMASS, FISHERIES POLICY, TROPICAL ECOSYSTEMS, SURFACE WATER, SUSTAINABLE MANAGEMENT, COMMERCIAL FISH, MARTEN, COASTAL ZONE, MANGROVES, BAY, AQUATIC RESOURCES MANAGEMENT, PELAGIC FISH, OPEN ACCESS, TIGER, BIOMASS, SOIL RESOURCE, DIETS, MARINE SCIENCE, ABSOLUTE VALUE, COMPARATIVE ECOLOGY, AQUIFER SYSTEM, RIVER NETWORK, FISH DIVERSITY, COASTAL ECOSYSTEMS, MIGRATION, CONSERVATION OF BIODIVERSITY, BIODIVERSITY, FRESH WATER FISH, SPECIES, CONSERVATION PROJECT, RAINFALL, EXPLOITATION OF RESOURCES, FRESH WATER FISH, ACTION PLAN, RIVER SYSTEMS, BIOLOGICAL SCIENCES, PREDATORS, FISH YIELDS, FISH DIVERSITY, GEOGRAPHIC INFORMATION, FRESHWATER FISH SPECIES, RESERVES, COASTAL ECOSYSTEMS, SHAD, NATURAL RESOURCES, FISH ABUNDANCE, DESTRUCTIVE FISHING, FISH HABITATS, LAND USE, CLIMATE VARIABILITY, CATFISH, SPECIES’ HABITAT, COASTAL AREA, BASIN, NATIONAL FISHERIES, RIVER BASIN MANAGEMENT, ECOSYSTEM, MIGRATION OF FISH, FRESH WATER, FRESHWATER FISH SPECIES, AQUATIC RESOURCES, HABITAT LOSSES, COASTAL FISHERIES, FISHERIES RESOURCES, HABITAT LOSS, CLIMATE CHANGE, REFUGE, COMMERCIAL VALUE, CARP, AQUACULTURE, IMPACT OF CLIMATE CHANGE, COASTAL COMMUNITIES, BIOLOGY, FIELD RESEARCH, PROTECTION, FORESTS, BIODIVERSITY CONSERVATION PROJECT, LAKE, DRY SEASON, FOREST, DISTRIBUTION OF FISH, COASTAL LAND USE, ASSESSMENT REPORT, MARINE ECOSYSTEMS, HABITAT, MARINE FISHERIES, FOOD, ISSUES, POPULATION ESTIMATES, ECOLOGICAL IMPACTS, STREAMS, FRESH WATER, CRABS, FISHERIES, CAT, ANIMAL PROTEIN, ANCHOVY, OCEANS, COASTAL REGIONS, ECOSYSTEMS, FIN, LANDSCAPE, FISHING CAPACITY, MARINE FISH, CLIMATE CHANGE SCENARIOS, HABITAT CHANGE, ACTION PLANS, BREEDING, CONSERVATION, LOCAL FISHERMEN, FOOD SUPPLY, COASTAL REGION, CREEKS, ECOLOGY, WATER POLLUTION, MARINE RESERVES, ANIMAL, TROPICAL FISHERIES, NATIONAL FISHERIES POLICY, RIVER SYSTEMS, LIVELIHOODS, HABITAT SIZE, SMALL FISH, ZOOLOGICAL SOCIETY, SHARK, ADAPTATION TO CLIMATE CHANGE, BIODIVERSITY CONSERVATION, FRESHWATER FISH, SEA LEVEL, LIVING AQUATIC RESOURCES, SALINITY DATA