Many indigenous species of fish are facing extinction in Narsingdi district due to widespread use of pesticides and chemical fertilizers in the cropland land for boosting production.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/indigenous-species-fish-face-extinction-narsingdi
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-sun-bangladesh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fisheries-0
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/narsingdi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pesticides
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chemical-fertilisers
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia