Fisher-folks know a river better than most others. Fish diversity is unfailing indicator determining river health. Unfortunately given the pollution load and lack of fresh flowing water, the Delhi stretch of Yamuna river is biologically dead. Hence fishing activities are rare and not much is known about the current fishermen community.
Situation was better in the past. Many people still fondly recollect, memory of bathing in a pristinely flowing Yamuna in Delhi around 1970s. They also describe their narrative of enjoying plenty of fish variety. Elderly in Greater Noida even claim watching ‘Sush’ dolphin in the river during their childhood.
Now the river is in continual degradation. It gets some clean water during monsoon, when adjoining areas face flood threat.