Pollution Research Paper

STUDY OF PHYTOPLANKTON DURING HIGH AND LOW TIDES IN THE TIDAL ESTUARIES OF KALIMIRENG RIVER

UUN YANUHAR, FERI SETIAWAN, AWALIA OKTAVIANA, MUHAMMAD MUSA AND DIANA ARFIATI

Abstract

Industrial activities around the tidal estuary of Kalimireng River affect the level of water pollution. Potential pollution indicators were described–plankton profile and water quality. The aim of this study is to determine the water quality of Kalimireng River, identify and characterization of phytoplankton during high and low tides in Kalimireng River. This research was conducted in January-March 2018. The water quality results of Kalimireng river were reported on pH 5.70-7, flow velocity 10.3 cm/sec, temperature with a range of 26-29!, brightness level 7.4 cm, salinity 2.90-7.54 ppm, CO2 ranged from 12–29.30 mg/L, dissolved oxygen (DO) ranged from 7-9.8 mg/L, TOM in the range of 22.27–9.9 mg/L, nitrate ranged from 0.340-0.535 mg/L and Orthophosphate ranged from 0.085-0.34 mg/L. However, plankton analysis results found Nitszchia longissima, Nitzschia acicularis, Lynbya aestuarii, Scenedesmus acutus, Arthrospira maxima, Coelastrum sp, Echinosphaerella limnetica, Gramatophora marina, Oscillatoria sp, Anabaenopsis sp, Chladopora spp, Chlamydomonas sp. Based on the results of phytoplankton observations, the plankton was founded to be tolerant to the quality of contaminated water, for example, Nitzschia with a high abundance. This result was supported by the results of water quality analysis which shows the water quality of the Kalimireng River was categorized as mild polluted.