Home / Environment / Odisha Beaches Host Unprecedented Olive Ridley Migration
Odisha Beaches Host Unprecedented Olive Ridley Migration
16 Sep
Summary
- Nearly 700,000 olive ridley turtles nested at Rushikulya in 2025.
- Turtles navigate thousands of miles using Earth's magnetic field.
- Only 0.1% of hatchlings are estimated to survive to adulthood.
Odisha, India, experienced a record-breaking olive ridley turtle nesting event in 2025, drawing nearly 700,000 turtles to Rushikulya beach alone. This annual phenomenon, known as the Arribada, occurs between December and April. Thousands of adult female turtles migrate from the ocean to lay eggs on familiar shores.
The turtles undertake this remarkable journey, sometimes over a decade after their own birth, navigating thousands of miles using magnetoreception to find their natal beaches. Despite their incredible survival instincts and the vast number of eggs laid—100 to 150 per turtle—only an estimated 0.1% of hatchlings survive to adulthood.
These vulnerable sea turtles face numerous threats, including bycatch, poaching, habitat disruption from artificial lighting, and the pervasive impacts of climate change and marine debris. Ensuring the survival of these ancient mariners remains a critical conservation challenge.
