01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-05-0247 |
| Title of Abstract | Intensified Coral Bleaching Events During Marine Heatwaves In the Andaman and Nicobar Coral Reef Region |
| Authors | SUBASH KISKU* |
| Organisation | Berhampur university |
| Address | Berhampur university , bhanja bihar ,760007 Berhampur, Odisha, India Pincode: 760007 E-mail: subashkisku@gmail.com |
| Country | India |
| Presentation | Oral |
| Abstract | Abstract: Marine heatwaves (MHWs)⿿prolonged periods of unusually high sea surface temperatures⿿are intensifying with global climate change and pose a growing threat to marine ecosystems. Coral reefs in the Indian region of the North Indian Ocean are particularly vulnerable, with major bleaching episodes observed in recent decades. This study investigates the link between extreme MHWs and coral bleaching events in 2010, 2016, and 2024, focusing specifically on coral reef regions in the Andaman and Nicobar Islands. Our objective was to identify a combination of thermal stress criteria that would capture the most severe MHWs in this region and encompass all known bleaching-associated events. Using satellite-derived sea surface temperature anomalies, we analysed the spatial extent, intensity, and ecological consequences of these heatwaves. The results reveal a strong relationship between high-intensity MHWs and widespread coral bleaching, influenced by regional oceanographic conditions, cumulative thermal stress, and coral species' resilience. This research provides critical insights into the vulnerability of Indian coral reef ecosystems and underscores the urgent need for region-specific conservation strategies and climate adaptation measures to enhance reef resilience and ensure the survival of these ecosystems in a rapidly warming ocean. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | Keywords: Andaman and Nicobar, coral bleaching, Indian Coral Reefs, Marine heatwaves, Mass coral bleaching, Sea surface temperature |
| For Awards | no |