Primary Productivity of Jatigede Reservoirs in Sumedang, West Java
Asian Journal of Fisheries and Aquatic Research,
Jatigede Reservoir is a reservoir located in Sumedang West Java which is built for irrigation, raw water, power generation, tourism, and capture fisheries. This research aims to determine the value of primary productivity as one of the indicators of the water body feasibility of the Jatigede reservoir to capture fisheries activities. The study was conducted in August – September 2019. Sampling is carried out at 4 stations on the surface, half the depth of compensation, and the depth of compensation. Estimation of primary productivity using chlorophyll-a concentration measurement method. The results of measurement of water quality parameters in the Jatigede reservoir include transparency range of 19,5 cm – 116,5 cm, temperature with a spread of 26,58 – 27,48oC, pH with a range of 7,69 – 8,40, carbon dioxide with a range of 4,190 mg/L – 9,219 mg/L, current ranges from 0.136 m/s – 0,216 m/s, BOD5 with a range of 11,027 dissolved oxygen ranges from 6,4 mg/L – 7,1 mg/L, ammonia ranges from 0,006 mg/L – 0,039 mg/L, nitrates ranged from 0,168 mg/L – 0,216 mg/L, and phosphate range 0,139 mg/L – 0,185 mg/L. Results from the measurement of chlorophyll-a ranged from 0,035 mg/L – 0,062 mg/L. This results in showing the Jatigede reservoir of oligotrophic water because the primary productivity in the waters of the Jatigede Reservoir is relatively low if calculated based on the concentration of chlorophyll-a.
- Primary productivity
- Jatigede reservoirs
- water quality
How to Cite
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