The impacts of shrimp farming on water quality and effluent loading of shrimp farms in
southwest (Khulna) and southeast (Cox's Bazar) regions of Bangladesh was investigated
during March-August and August-October season, respectively. Water salinity fluctuated
from 3.0 to 15.0 ppt in the southwest, whereas it was between 2.5 to 20.0 ppt. in southeast
region. Total ammonia nitrogen as recorded in most farms of Cox's Bazar region was
higher (0. 1160.438 mg/L) than the recommended level of shrimp farming. Mean values
of total ammonia nitrogen and total nitrogen at the outlet of shrimp farms were higher
than those of inlet in both regions. Mean values of phosphate phosphorus and total
phosphorus at outlet were lower than inlet except in harvest time of Penaeus monodon.
Total suspended solids were deposited on the bottom of shrimp farms in both regions,
which resulted in higher concentration in inlets than outlets in both regions
