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LAKE SENTANI |
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+The Sentani lake is the only one in Irian Jaya included in the program. It drains through the Jafuri river to the Pacific Ocean. There is available a background study for the Sentani Hydro Scheme conducted by a Canadian company. However, this did not give much information on the limnology of the lake.
The lake was
stratified (RTR 51.5), with an anoxic hypolimnion. Traces of hydrogen sulfide
could be detected in the hypolimnion, and carbon dioxide concentrations were
from 2.2 to 3.0 mg/l. Total nitrogen varied from 0.234 to 0.899 mg/l N and total
phosphorus from 0.013 to 0.040 mg/l P. Chlorophyll a concentration was 2.39 mg/m3,
biomass 0.24 mg/l and transparency 2.6 meters. The dominant algal species was
diatomophyte Aulacoseira granulata, which comprised of 47 % of the
biomass. Also cyanophytes and chlorophytes were found. The lake showed some
signs of eutrophication.
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