A fish kill was reported on Saturday along the Phalguni river near Bengre, Sulthan Battery, and Bokkapatna in Mangaluru, according to local residents. This incident comes days after environmental activists raised concerns about pollution and demanded the removal of a temporary coffer bund constructed for a bridge connecting Tannirbhavi and Sultan Battery.
Locals Allege Pollution Leading to Fish Deaths
Residents have alleged that increasing pollution levels, caused by the coffer bund obstructing natural water flow, resulted in the death of fish. Many inhabitants have also reported experiencing rashes and skin irritation upon contact with the river water.
According to local sources, a portion of the coffer bund was reportedly dismantled on Saturday, which may have exacerbated the situation.
Fisherman's Account
Fisherman Satish Kotian told TOI that the fish likely died due to an inability to breathe. He explained that the blockage reduced water flow, leading to stagnation and pollution. Kotian further alleged that chemical discharge into the river contributed to the problem, adding that contact with the water causes itching and rashes.
After part of the bund was removed and water began flowing into the sea, pollutants spread across Bengre, Bokkapatna, and Kudroli, resulting in fish deaths in several areas. However, normal water circulation may resume within two to three days.
Environmental Group's Perspective
Suresh Udupa of the National Environment Care Federation (NECF) suggested that sewage sludge may have entered the river. He opined that the fish deaths could have occurred due to the mixing of chemical-laden water and accumulated sludge once the flow was disturbed.
Official Response
A senior official from the Karnataka State Pollution Control Board stated that water samples have been collected and results are pending. Notices have been issued to the Commissioner of Mangaluru City Corporation and the Managing Director of Mangaluru Smart City Limited. The official speculated, "We suspect that the first rain could have resulted in sewage contamination or saltwater intrusion."
