Dissolved organic carbon concentration of a natural water body and its relationship to water color in Central Kalimantan, Indonesia |
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| Authors: | Toshiyuki Ishikawa Trisliana Yurenfrie Ardianor Sulmin Gumiri |
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| Institution: | (1) Present address: Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan;(2) Graduate School of Environmental Earth Science, Hokkaido University, 10-5 Kita, Kita-ku, Sapporo 060-0810, Japan;(3) Faculty of Fishery, University of Palangkaraya, Indonesia |
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| Abstract: | In Central Kalimantan, Indonesia, the water of lakes and rivers showed high dissolved organic carbon (DOC) concentration,
5-50mgC/l. There was a clear relationship between DOC concentration and pH. DOC also contributed to low water transparency
in the studied lakes. Water colors measured by spectrophotometer showed a strong relationship with DOC concentration, indicating
high applicability of water color measurement for estimation of DOC. The development of a simple but quick estimation of DOC
will contribute to understanding the seasonal dynamics of DOC, which might regulate both abiotic and biotic conditions in
aquatic ecosystems in this area. |
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| Keywords: | DOC Water color Tropical limnology Kalimantan Island |
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