Published On: Fri, May 17th, 2013

Gangetic dolphins falling prey to pesticides, poaching

Lucknow: When it comes to protecting an endangered species, casual efforts never works and in fact it always eludes desired results. This is probably what is happening in case of gangetic dolphins in Uttar Pradesh where its numbers are fast dwindling.

A gangetic dolphin frolicking in Girwa river of Katerniaghat Wildlife Sanctuary in Uttar Pradesh, India.

A gangetic dolphin frolicking in Girwa river of Katerniaghat Wildlife Sanctuary in Uttar Pradesh, India.

One of the most endangered aquatic species, gangetic dolphins are found mainly in Ganga and Girwa river of Katerniaghat wildlife sanctuary in Bahraich district of Uttar Pradesh. These dolphins can be seen frolicking in serene and clear water of river Girwa. The river Karnali which originates from Himalaya, on emerging in the plains splits into two – one is called Girwa and the other Kauriala. These two rivers reunite again and then joined by yet another river Mohana to form the mighty river Ghaghara.

The dolphins which are generally blind, catch their prey by emitting ultrasonic waves which on reaching the prey reflects back and forms an image on the brain of the dolphin, enabling the animal to catch its prey. This is an unique phenomenon observed in a predatory animal.

Heavy use of pesticides, release of untreated domestic effluents and inorganic fertilizers are considered to be the main culprits coupled with poaching for meat for decline of this beautiful species.

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