In Nilphamari’s Jaldhaka upazila, unscrupulous fishermen are reportedly using improvised power systems known as ‘IPS’ to catch fish in local rivers, putting native species at risk of extinction. The practice is widespread in the Teesta, Buri Teesta, and Charalkata rivers, where electricity generated from IPS devices is released into the water at night, electrocuting fish and other aquatic life within a radius of several meters.

Residents report that the activity intensifies during the monsoon season when river water levels rise. Locals from Dawabari and Golmunda unions said organized groups operate boats at night, killing mother fish and fry alike, leading to a sharp decline in native fish populations. The demand for local fish remains high in markets, but supply from rivers has drastically fallen.

Jaldhaka Upazila Fisheries Officer Ariful Islam confirmed awareness of the issue and said that public awareness campaigns and legal measures are under consideration to curb the illegal practice.