ENVIRONMENTAL IMPACT ASSESSMENT (EIA) OF SHRIMP FARMING IN THE COASTAL REGION OF BANGLADESH

摘要

The purpose of the study was to investigate the impact of the semi-intensive and extensive shrimp farming on the water quality of the coastal region of Bangladesh. Water samples were collected from the adjacent river (water intake canal), inside pondsand outlet (water discharge canal) of the semi-intensive and extensive shrimp farm at Cox's Bazar coastal belt in Bangladesh. The samples were analyzed for temperature, transparency, pH, salinity, total alkalinity, ammonia (NH_3), nitrite (NO_2), phosphate (PO_4), DO, BOD, COD etc. by using standard methods. The present study shows marked variation in water quality of the adjacent river water, pond water and discharge water from semi-intensive and extensive shrimp farm. In consequence, the ability of the area to serve as a nursery for juvenile shrimps, feeding ground for small fish, other flora and fauna in the waterways are directly and indirectly affected.