World Dugong Day 2026 is observed on May 28 to raise awareness about dugongs, the gentle marine mammals often called “sea cows.” Dugongs live in shallow coastal waters and depend almost entirely on seagrass meadows for food, making them a key indicator of ocean health. Globally, dugongs are listed as Vulnerable on the IUCN Red List, while several regional populations face sharper decline due to habitat loss, fishing pressure, coastal pollution, and seagrass degradation.
Why World Dugong Day Matters
Dugongs are among the few marine mammals that are fully herbivorous. By grazing on seagrass, they help maintain healthy underwater meadows, which support fish nurseries, protect coastlines, and store blue carbon.
Their survival is directly linked to seagrass ecosystems. When seagrass disappears due to pollution, dredging, coastal construction, or warming seas, dugongs lose their primary food source and become more vulnerable to starvation and strandings.
Key Dugong Facts
Fact |
Detail |
|---|---|
Common name |
Sea cow |
Scientific name |
Dugong dugon |
Global status |
Vulnerable |
Main food |
Seagrass |
Habitat |
Shallow coastal waters of the Indian and western Pacific oceans |
Major threats |
Seagrass loss, fishing nets, boat strikes, hunting, and pollution |
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India’s Dugong Conservation Focus
India has only around 200 dugongs left in the wild, making their conservation a national priority. They are mainly found in the Gulf of Mannar, Palk Bay, Gulf of Kutch, and the Andaman and Nicobar Islands.
Tamil Nadu created India’s first Dugong Conservation Reserve in Palk Bay in 2022. In 2025, the reserve also received recognition at the IUCN World Conservation Congress, strengthening India’s role in dugong protection.
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Major Threats to Dugongs
- Seagrass destruction: Coastal development and pollution damage feeding grounds.
- Fishing gear entanglement: Dugongs can get trapped in nets and drown.
- Boat traffic: Collisions can injure or kill dugongs in shallow waters.
- Slow reproduction: Dugongs mature late and have long birth intervals, making population recovery slow.
- Marine pollution: Studies from Tamil Nadu have found toxic metals in stranded dugongs, raising concern over polluted seagrass habitats.
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A Global Warning for Marine Ecosystems
Recent reports from Thailand show that dugong populations along the Andaman Coast may have fallen sharply after seagrass die-offs, highlighting how quickly local populations can collapse when habitats degrade.
World Dugong Day 2026 is therefore not just about one species. It is a reminder that protecting dugongs also means protecting seagrass beds, coastal biodiversity, fisheries, and blue carbon ecosystems that millions of people depend on.
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