Why in the news?

  • According to the IUCN, the global population of green sea turtles has risen by 28% since the 1970s.

Green Sea Turtle

  • Distribution:
    • Found in tropical and subtropical waters across the Atlantic, Pacific, and Indian Oceans.
    • Commonly nests on sandy beaches and feeds in shallow coastal waters, lagoons, and seagrass meadows.
  • Features:
    • The Green Sea Turtle (Chelonia mydas) is the largest hard-shelled sea turtle species in the world.
    • The name “green” refers not to its carapace (which is olive to black) but to the green-colored fat beneath its shell.
    • It plays a vital ecological role as a keystone species in tropical marine ecosystems, maintaining healthy seagrass beds and coral reefs.
    • Spends nearly its entire life underwater, surfacing only to breathe or nest on beaches.
    • Lifespan: Estimated 60–70 years.
    • Natal Homing: Females return to the same beach where they hatched to lay eggs.
    • Nesting occurs mainly at night, with 50–200 eggs per clutch.
  • Ecological Importance:
    • Acts as a keystone species by maintaining seagrass bed productivity, ensuring the stability of marine ecosystems.
    • Supports nutrient cycling between marine and coastal ecosystems.
  • Threats Faced:
    • Coastal development, pollution, fishing net entanglement, climate change, and illegal egg collection.
    • Rising sea surface temperatures affect nesting success and sex ratios.
  • Conservation Status:
    • IUCN Red List: Least Concern
    • CITES: Appendix I – International trade prohibited.
    • Wildlife (Protection) Act, 1972: Schedule I