India’s rivers are home to a unique creature: the Gangetic dolphin. These dolphins, which are nearly blind and swim differently from their oceanic cousins, are facing serious threats to their survival. A recent survey revealed that there are about 6,327 river dolphins in India, with the vast majority being Gangetic dolphins. There are only three Indus dolphins, primarily found in Pakistan.
The Ganges River, one of the most important rivers in India, is a key habitat for these dolphins. Unlike their ocean counterparts, Gangetic dolphins swim sideways and spend much of their time underwater. They have long snouts and rely on echolocation to find their way in the murky waters.
Researchers from the Wildlife Institute of India conducted a comprehensive survey of 58 rivers across ten states from 2021 to 2023. This survey is crucial for understanding the population of river dolphins, which have faced many challenges over the years. Since 1980, at least 500 dolphins have died, many due to accidental entanglement in fishing nets or intentional killings.
Conservation efforts have increased awareness about these dolphins. In 2009, the Gangetic dolphin was named India’s national aquatic animal to help boost conservation efforts. Recent initiatives, including a 2020 action plan and a new research center opening in 2024, have aimed to improve their numbers. However, conservationists warn that much work remains to be done.
Dolphins continue to be at risk from poaching for their meat and blubber, which is used as fishing bait. Additionally, many fishermen do not report accidental dolphin deaths due to fear of legal repercussions, as Indian wildlife laws impose strict penalties for such incidents.
River cruise tourism has also increased in recent years, adding to the threats faced by these dolphins. The noise and disturbances from cruise ships can significantly impact their habitat. Experts worry that increased boat traffic could push Gangetic dolphins closer to extinction, similar to the fate of the Baiji dolphins in China’s Yangtze River.
These river dolphins have adapted over millions of years, evolving from marine ancestors. They once thrived in flooded areas but now face challenges due to their specialized adaptations. Their poor eyesight and slow swimming speed make them vulnerable to collisions with boats. Furthermore, they have a slow reproductive rate, with females giving birth to just one calf every two to three years.
Despite these challenges, there is hope for the future. Conservationist Ravindra Kumar Sinha believes that government initiatives have made a positive impact. He acknowledges that while progress has been made, there is still much to accomplish to ensure the survival of these remarkable creatures in India’s rivers.