ZSI starts tagging olive ridleys to track migration path

Context

The Zoological Survey of India has started tagging endangered olive ridleys to track their migration path in the off-shore waters of Odisha.

The tags are made up of aluminum.
Platform Transmitter Terminals (PTTs) or tags, permits an online monitoring of migratory routes.
Generally, these are radio transmitters that transmit a signal that can be detected by polar orbiting satellites.
The Study was conducted to know the migration path.
The study was then carried out to know their movement in sea so that the area can be avoided for hydrocarbon exploration.
It will help in protecting the migration routes from the any anthropogenic activities.

The Rushikulya beach, Odisha is one of the largest mass nesting sites for sea turtles.
The Gahirmatha Marine Sanctuary, the Devi river mouth, Odisha and West Bengal are other sites.
They are alsofound on the shores of the Andaman Islands.

Characteristics of beach chosen by Olive Ridley Turtle

Olive riddle generally choose nest in the beach having following characteristics:

Beach must be accessible from sea.
It should be high enough to prevent inundation of eggs by high tide.
The substrate must facilitate gas diffusion and be moist and fine to prevent collapse of Eggs.
The coastal water should be low salinity and high humidity.