ABUNDANCE AND COMPOSITION OF PHYOTOPLANKTON IN JATIGEDE RESERVOIR

environment

The study was conducted in the Jatigede Reservoir from August to October 2019 the purpose of this study was to determine the abundance and composition of phytoplankton in the Jatigede Reservoir. The method used is a survey method with primary and secondary data collection. Sampling was carried out 5 times with a span of 7 days at 4 stations which were divided based on water input. The results showed that the abundance of phytoplankton ranged from 6978 ind/L – 150697 ind/L with a composition consisting of 49 genera, 22 orders, 11 classes and 5 phyla. Physical and chemical parameters of the waters obtained temperature ranged from 26.58-27.48oC, 168 – 0.238 mg/L, brightness 0.28 – 0.93 meters, pH 7.96 – 8.30, nitrate 0.168 – 0.238 mg/L , phosphate 0.148 – 1.61 mg/L.

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