Fishing Ban Sparks Early Recovery in River Biodiversity

China’s 10-year fishing ban in the Yangtze River is already showing promising results, halting decades of biodiversity decline and allowing fish populations to begin recovering.

“Ambitious conservation actions can halt biodiversity loss in the Yangtze River,” researchers wrote in the journal Science, noting improvements in fish biomass, species diversity, and the return of some threatened species after the ban took effect in 2021.

Monitoring between 2018 and 2023 shows fish biomass increasing, species diversity improving, and many fish displaying stronger body condition, signs that the river ecosystem is stabilising. Researchers also recorded the early return of threatened species, suggesting habitats are becoming healthier again. Combined with cleaner water, habitat restoration and reduced vessel traffic, the fishing ban is helping the Yangtze’s vast river system regain ecological balance and offering a powerful example of how large-scale conservation can revive freshwater biodiversity.