Kochi fishermen are having a hard time, with the demand for fresh-water fish going down. The reason is not far to seek - a large number of fish died in the Periyar river a fortnight
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/fish-are-dying-effluents
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fisheries