ASSESSMENT OF NUCLEAR ABNORMALITIES IN THE PERIPHERAL ERYTHROCYTES OF FISH SPECIMEN OF SUNDARBANS COASTAL ZONE, WEST BENGAL, INDIABANI MONDAL, KEYA BHATTARCHARYA, SNEHASIKTA SWARNAKAR AND SOUMENDRA NATH TALAPATRA
The nuclear abnormalities (NAs) in the peripheral erythrocytes of fish is an important measure to identify genotoxins in water. The present study was attempted to evaluate the frequencies of several NAs in the peripheral erythrocytes of fish, Liza parsia Ham. inhabited at estuarine water of Sundarbans coastal zone. Two study sites were selected, the Hatania-Doania river connected to Hooghly river as downstream site and 2Km upstream site. The frequencies of different NAs in the peripheral erythrocytes of test fish were studied during monsoon. The present results indicate an alarming risk of genotoxicity through the induction of NAs in the peripheral erythrocytes of fish L. parsia at a level of P<0.001 when compared between downstream and upstream. It is suggested that regular monitoring is needed for genotoxin(s) contamination level in the estuaries by genetic biomonitoring in all seasons, which is lacking in the estuaries of coastal zones at Sundarbans.