Identification of Fitoplankton Density on Litoral Zone Lake Kerinci

Abstract

Research about identification of density phytoplankton had been studied in litoral zone Kerinci Lake. Five stations has been choosen by purposive sampling along litoral zone. The samples were colleted by filtering water through plankton net. The samples has been identified and analyzed in Environmental Boards UPTD Laboratory and laboratory Department of Biology IAIN Kerinci. 53 spesies phytoplankton has been identified consist of three class. Average of individu/liter of Bacillariophyceae (36650), Chlorophyceae (3000) and  Cyanophyceae (4000). Highest total of density phytoplankton found in station one are 386 individu and the less density phytoplankton found in station five are 4 individu.. The result of physicochemical properties measuring were temperature ranged from 23⁰C - 25⁰C, pH 5,5-6, BOD 4,8 – 48,96 mg/l, COD 10 – 19 mg/l, nitrit 0,03 – 1,1 mg/l and amoniac 1,9 – 2,7 mg/l. Based on the total density and physicochemical factors of Kerinci Lake refer to oligotrophic condition.