In brief
Approximately 6,327 dolphins inhabit India's rivers, but they are endangered due to habitat destruction and human activity. Efforts to conserve the Gangetic river dolphin, named India's national aquatic animal, have emerged, yet challenges persist.
India's rivers, particularly the Ganges, host around 6,000 dolphins, but their future hangs in the balance. Unlike oceanic dolphins, these Gangetic dolphins navigate murky waters with echolocation, possessing unique adaptations like long snouts and nearly blind eyes. A recent survey conducted by the Wildlife Institute of India indicates that only 6,327 river dolphins survive in the country, with 6,324 being Gangetic and a mere three from the Indus river, which primarily spans Pakistan. Both species are classified as endangered by the IUCN. The fascinating history of river dolphins reveals their evolution from marine relatives millions of years ago as they adapted to life in shallow rivers after oceanic floods. This new survey, the first of its kind, is critical for monitoring dolphin populations amidst alarming mortality rates. Since 1980, over 500 river dolphins died, often due to entanglement in fishing nets or intentional hunting for their flesh and blubber. Conservation efforts have gained momentum since the Gangetic dolphin became India's national aquatic animal in 2009, aided by an action plan and a research center set to open in 2024. However, serious threats remain, including poaching, vessel collisions, and habitat disruption from increasing river cruise tourism. Conservationists warn that rising boat traffic may lead to a decline reminiscent of the Baiji dolphin's extinction in the Yangtze River. Known for their reliance on echolocation due to their poor eyesight, river dolphins are particularly susceptible to accidents with boats and are challenged by a slow reproductive rate. Yet, optimism persists among conservationists like Ravindra Kumar Sinha, who believes that governmental initiatives have significantly contributed to their survival, although much more needs to be done to ensure a stable future for these unique aquatic mammals.
