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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. 相似文献
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Akifumi Ohtaka Makoto Uenishi Linda Wulandari Yulintine Liwat Ardianor Sulmin Gumiri Masao Nagasaka Haruo Fukuhara 《Limnology》2014,15(2):191-197
The faunal composition of “interrhizon” invertebrate communities associated with submerged parts of three kinds of macrophytes, Eichhornia crassipes, Gramineae spp. and Polygonum tomentosum, were studied in an oxbow lake, Lake Tundai, with acidic water (pH 3.9–4.4) in the peat swamp area of Central Kalimantan. The pH, turbidity, and chlorophyll-a concentration in the surface waters tended to be higher in macrophyte stands than in open waters near the stands. Thirty-one taxa belonging to three groups of invertebrates, Arachnida, Insecta, especially chironomids, and Isopoda, were found from the root systems, of which insects were the most abundant in every macrophyte stand. The interrhizon invertebrates accounted for 0.16–8.7 g wet wt m?2 among three vegetational stands. The diversity and abundance of interrhizon invertebrates are low in Lake Tundai; this could be due to low pH and/or low productivity in the lake water. 相似文献
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