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Coral Bleaching
June 19 , 2020
1494 days
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- The Gulf of Mannar (GoM), spread around 21 islands, suffers significant damage caused by livelihood-linked human threats and climate change.
- The islands and the reef areas collectively constitute the Gulf of Mannar Marine National Park (GMMNP).
- Corals in the GoM usually bleach in summer if the water temperature surpasses 30˚C, but they recover when it drops in August.
- According to recent study Cyclones Amphan and Nisarga have saved the Gulf of Mannar corals from mass bleaching.
- The windstorms along with two low pressures have significantly lowered seawater temperature in summer.
- It is expected that the bleached corals will completely recover by July-end without facing any mortality, provided the present climatic condition continues.
- Reduction in sewage inflow, industrial and human activities and halt in fishing during the lockdown have also assisted in improvement of reef health, resulting in enhanced fish population and faster coral recovery.
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