India has recently carried out its first complete survey of river dolphins that found 6,327 dolphins across 28 rivers in eight states, almost all of which belong to the Ganges river dolphin species. This species falls under the Endangered species and is India’s national aquatic animal. India also holds about 90 percent of the global population of Ganges river dolphins.
What are the Findings of the Study?
- Uttar Pradesh: 2,397 dolphins, the highest number among states.
- Assam: 635 dolphins.
- History: The estimate of about 4,000-5,000 dolphins in the late 20th century was reduced to 1,800 in the following years.
- Deaths: More than 500 dolphins died from bycatch and killing since 1980.
What are the Endangering Factors?
Entanglement in fishing nets is the main threat, while sand mining, dams and habitat fragmentation are making the situation worse in Brahmaputra river.
Could There be a Change in Any Area? – Ganges river dolphin
In Bihar’s Bhagalpur region, the number of dolphins has increased from 95 dolphins to 200 dolphins in the last 27 years. A new study is to be conducted in early 2026.
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