Hundreds of dead fish found in Bishan-Ang Mo Kio park river
Hundreds of dead fish were found floating in the river at Bishan-Ang Mo Kio Park by residents on Tuesday, causing a stench in the area that lingered till Wednesday afternoon.
About 400 fish were caught in clumps along the banks or on rocks by the three-kilometre long river, especially on the stretch close to Bishan Road. Many were decomposing under the hot sun.
National water agency PUB said that it was notified about the dead fish on Tuesday morning, and immediately sent contractors to clean up the river. The clean-up was completed by 3pm on Wednesday, the spokesman added.
PUB explained that lower levels of dissolved oxygen in the water caused by recent hot and dry weather could have killed the fish. It said that only two species of fish - tilapia and mayan cichlids - were found dead.