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Journal : JURNAL TEKNOLOGI LINGKUNGAN

DISTRIBUSI SPASIAL ZOOPLANKTON DI DANAU LINDU, DAN BEBERAPA FAKTOR YANG MEMPENGARUHI KELIMPAHANNYA lukman, lukman
Jurnal Teknologi Lingkungan Vol. 6 No. 2 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.656 KB) | DOI: 10.29122/jtl.v6i2.341

Abstract

Lake Lindu is located in conservation area, the Lore Kalamanta National Park, and still on natural condition. Therefore, it is interesting to recognize their biological condition, especially zooplankton existence. It was observed the zooplankton spatial distribution on March 2001 and evaluated the factors which influenced to their abundance. Four sampling station at rivers, inlet of the lake, five in lake waters body at 0 m; 3 m , 5 m, and 10 m water depth were studied. Supporting data, namely organic content on COD(Chemical Oxygen Demand) parameter was measured on same location, for a while phytoplankton and heterotrophyc bacteria data from secondary data. There were five genus zooplankton, namely Ceriodaphnia (Cladocera), Diaptomus, Cyclops (Copepoda), Brachionus and Filinia (Rotifera). It was not found zooplankton at rivers, therefore average of abundance in lake water body ranged 37 - 376 ind.l-1, and based of depth stratum their abundance show to maximize at three meters depth. Zooplankton abundance seem correlate support factors quadratically, positively to COD and abundance of heterothrophyc bacteria, but negatively to phytoplankton abundance.
PEMBEBANAN DAN DISTRIBUSI BAHAN ORGANIK DI WADUK CIRATA lukman, lukman
Jurnal Teknologi Lingkungan Vol. 3 No. 2 (2002): JURNAL TEKNIK LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.504 KB) | DOI: 10.29122/jtl.v3i2.246

Abstract

Pemanfaatan Waduk Cirata untuk pengembangan budidaya ikan sistem karamba jaring apung (KJA) cenderung berlebihan, sehingga menimbulkan dampak beban pencemaran bahan organik yang cukup tinggi. Penelitian pembebanan bahan organik dan distribusinya telah dilakukan di Waduk Cirata pada bulan Agustus tahun 2000, untuk mengetahui kontribusi sumber-sumber muatan organik dan bebannya pada komponen ekosistem.Beban organik allochtonus dari inlet (S.Citarum) mencapai 0,234 kg.dt-1 atau 7.393 ton per tahun, sedangkan beban organik autochtonus dari sistem KJA rata-rata 6.556 ton per tahun. Pada kolom air terdapat bahan organik total yang berkisar antara 13,9–22,7 mg.l-1, dan pada sedimen terdapat bahan organik total rataan per wilayah antara 152,5–188,6 mg.berat kering g-1 sedimen.