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EnvironmentSource: The Hindu

Threats to Olive Ridley Turtle Nesting Season

Saturday, 10 January 2026
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Key Points

Threats to Olive Ridley Turtle Nesting Season: The ongoing nesting season for olive ridley turtles is jeopardized by human activities, including fishing net-related carcasses and disruptive artificial lighting. Conservation efforts are crucial for their survival and the health of marine ecosystems. This issue is significant for UPSC aspirants, particularly for GS Paper 3, which covers environmental conservation. Last Updated: 2026-01-10

Key Facts About Olive Ridley Turtles

  • Olive ridley turtles are the smallest sea turtles with a heart-shaped carapace.
  • Found in tropical regions of the Pacific, Indian, and Atlantic Oceans.
  • They are omnivorous, feeding on jellyfish, snails, crabs, and algae.
  • Known for synchronized mass nesting called 'arribada'.
  • Each female lays about 100-140 eggs during nesting.
  • Key nesting sites include Gahirmatha and Rushikulya.
  • All sea turtle species in India, including ORTs, are protected under the Wildlife Protection Act, 1972.
  • ORTs are listed as Vulnerable on the IUCN Red List.

India's Marine Biodiversity Conservation

The conservation of olive ridley turtles is crucial for maintaining marine biodiversity, which aligns with India's strategic environmental goals. Protecting these turtles supports the health of marine ecosystems, which are vital for the fishing industry and coastal communities. India's commitment to biodiversity is reflected in its international rankings and efforts to meet global conservation targets.

Related Government Schemes/Policies

  • Operation Olivia: Enforces fishing bans to protect turtles.
  • Turtle Excluder Devices (TEDs): Reduce accidental captures in fishing nets.
  • Tagging programs: Track ORT migration patterns.
  • Telemetry Study (2025–2027): Monitors ORT behavior in Tamil Nadu.

UPSC Relevance

  • GS Paper 3: Environmental conservation, biodiversity, and wildlife protection.
  • Prelims: Questions on species characteristics, conservation status, and key nesting sites.
  • Mains: Analytical themes on biodiversity conservation strategies and human impact on ecosystems.

FAQ Section

  • What is the olive ridley turtle?
    Olive ridley turtles are the smallest sea turtles, known for their heart-shaped carapace and synchronized mass nesting called 'arribada'.
  • Why is the olive ridley turtle important?
    They play a crucial role in marine ecosystems by maintaining the health of seagrass beds and coral reefs, which are essential for marine biodiversity.
  • What are the key features of olive ridley turtle conservation?
    Key features include the use of Turtle Excluder Devices (TEDs), Operation Olivia, and tagging programs to monitor migration and reduce bycatch.

Detailed Coverage

  • Olive ridley turtles are the smallest sea turtles with a heart-shaped carapace.
  • Found in tropical regions of the Pacific, Indian, and Atlantic Oceans.
  • They are omnivorous, feeding on jellyfish, snails, crabs, and algae.
  • Known for synchronized mass nesting called 'arribada'.
  • Each female lays about 100-140 eggs during nesting.
  • Key nesting sites include Gahirmatha and Rushikulya.
  • All sea turtle species in India, including ORTs, are protected under Wildlife Protection Act, 1972.
  • ORTs are listed as Vulnerable on the IUCN Red List.
  • Operation Olivia enforces fishing bans to protect turtles.
  • Turtle Excluder Devices (TEDs) reduce accidental captures in fishing nets.
  • Tagging programs track ORT migration patterns.
  • A Telemetry Study (2025–2027) will monitor ORT behavior in Tamil Nadu.
  • Illegal poaching and egg trade are major threats despite an international ban.
  • Accidental bycatch in fishing nets is a leading cause of mortality.
  • Conservation during nesting season is vital for population health.
  • Current threats highlight the need for urgent conservation measures.
Environment

Practice Questions

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This phenomenon, characterized by the synchronized emergence of female Olive Ridley turtles to lay eggs on the same beach, is crucial for the species' reproductive success and is often referred to as a mass nesting event. What is this phenomenon called?