Fish diversity & production
- Majority of the wetlands of Ganga and Brahmaputra basin sustain less than 50 number of fish species
- Decline of fish diversity (23-54%) due to climatic variability and anthropogenic stressors from Gangetic wetlands
- Gradual decrease in natural fish fauna production (especially SIFs) from majority of the wetlands
- Decrease in fish production with reduced rainfall and increasing temperature showing influence on fish production from open waters
- Invasion of exotics in rivers and wetlands with more pronounced impact on native fish fauna
Loss of fish diversity in floodplain wetlands of West Bengal
