Subhan Ali, a young fisherman, couldn’t catch a single fish from the Indus river on Monday. For hours, he waited at the riverbank that touches the Hussainabad neighbourhood in Latifabad — a town situated in the suburbs of Hyderabad — but his makeshift fishing rod came out empty after every attempt. “We call it chambi,” he explained to Dawn.com, referring to the makeshift fishing rod — a wooden frame glued together from multiple pieces of wood and a net tied at one end — as we caught up with him at the downstream Hyderabad-Kotri railway bridge on the left bank of the Indus. Ali had tied a piece of foam around his waist with a rope. “This [foam] helps me float in the river as long as I am in there,” he remarked. A group of young fishermen holding one end of the net while their colleagues venture into the Indus river. Most days, he swims in the river on both sides as well as in the rivercourse, wherefrom the main current of the Indus flows. While entering the river, Ali holds the chambi tight. “As soon as a fish...