Physico-Chemical Parameters of the Andoni River System-Niger Delta, Nigeria

Monthly variations in the physico-chemical parameters of the brackish waters of the Andoni River System were conducted from January 1999 to December 2000. Parameter ranges for the two years were 26.05 to 32.1°C (temperature); 6.38-8.90 (pH), 12-220/00 (salinity) and 5.00-12.3 mg L-1 for dissolved oxygen. Observed fluctuations seemed to agree with the dynamic nature of brackishwater system.