Flooding that caused destruction elsewhere, brings joy and hope to those at the bottom of the Indus river Pakistani fishermen on the Indus delta at dusk. Fish catches have increased dramatically since the 2010 floods. Photograph: Declan Walsh / guardian.co.uk

By Declan Walsh in Keti Bunder, www.guardian.co.uk
Tuesday 5 October 2010 09.43 BST Ali Hussain’s sun-beaten face cracked into a broad smile, revealing a set of ferociously rotten, red-stained teeth corroded by years of chewing tobacco and betel nut. He had been asked his opinion of this year’s flood. “We’re happy with it, of course,” the fisherman said, standing outside his house on the mud flats of the Indus delta. “We’ve been waiting for this water for the past 14 years.” The curse of the rest of Pakistan has been a blessing for the delta, a maze of mangroves and shabby fishing villages at the bottom of the 1,900-mile river. Here, the fresh water that ravaged the rest of the country is bringing new life and renewal. Fishermen report an abundance of fish. Catches are up 20% in the last month, and could rise another 50% as the season progressed, said Ahmed Ullah of the Pakistan Fisherfolk Forum, which has 5,000 members on the delta. “For other people the floods have been bad news. But for us it was the only way to defeat the sea,” he said. Perhaps more significantly, the floods have brought an ecological windfall. Decades of building irrigation and hydro-electric dams further up the Indus drained the river of its force, allowing salty fresh water to infiltrate the delta. Mangrove plants on the mudflats perished – the acreage was halved between the 1950s and 2009 – while nearby farming land became uncultivable. Now the swell of fresh water – known locally as mithi, or sweet water – has injected new life into the sagging ecosystem. The provincial government says the mangroves are growing again as the salt water is pushed back. “We have a new defence against the sea,” said Mohsin Chandna, head of the Sindh coastal department, as he weaved a small boat through the creeks of the delta, pointing to thriving mangrove nurseries. A revitalised delta could, in time, turn marshes into agricultural land and herald a return of birds and other wildlife. Keti Bunder, a grotty little port that has been slowly dying over the years, could be revived. “Suddenly things are changing very fast,” said Chandna. …

Pakistan’s floodwaters welcomed along Indus delta