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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Marine Research in Indonesia Makara Journal of Science
Nuchsin, Ruyitno
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Immunology & microbiology Veterinary

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Journal : Makara Journal of Science

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SCREENING BAKTERI PENGHAMBAT UNTUK BAKTERI PENYEBAB PENYAKIT PADA BUDIDAYA IKAN KERAPU DARI PERAIRAN BANTEN DAN LAMPUNG Hatmanti, Ariani; Nuchsin, Ruyitno; Dewi, Julinasari
Makara Journal of Science Vol. 13, No. 1
Publisher : UI Scholars Hub

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Screening for Inhibitor Bakteri for Pathogenic Bacteria in Groupers Culture in Banten and Lampung Waters. A research about screening of inhibitor bacteria for pathogenic bacteria in grouper culture was done during 2005 in Marine Microbiology Laboratory, Research Center for Oceanography LIPI. Inhibition test was done using paper disc method for three isolates of pathogenic bacteria in his research, they were: Vibrio harveyii, 9.2/Luka/TSA and 8.2/Luka/TSA. The result shows that from 39 isolates of inhibitor bacteria from Banten and 27 isolates of inhibitor bacteria from Lampung only two isolates showed inhibition effect to the growth of three isolates of pathogenic bacteria. found inhibit the three strains of pathogenic bacteria mentioned above. The two isolates of inhibitor bacteria were 9L/AL-4/KNG/BLC/BOKN/BJN and 5L/AL-4/KNG/BJN, which were isolated from Bojonegara, Banten.
DISTRIBUSI VERTIKAL BAKTERI DAN KAITANNYA DENGAN KONSENTRASI KLOROFIL-a DI PERAIRAN KALIMANTAN TIMUR Nuchsin, Ruyitno
Makara Journal of Science Vol. 11, No. 1
Publisher : UI Scholars Hub

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Vertical distribution of bacteria population in relation to chlorophyll-a in East Kalimantan waters. Study on distribution of bacteria population and its relation to concentration of chlorophyll-a has been conducted in August – September 1999 in East Kalimantan waters. The purpose of the study was to observe the correlation between population of bacteria and concentration of chlorophyll-a in water column. Acridine Orange Epifluorescence Microscopy method was used to analyze bacteria population, while fluorometric method was used to determine chlorophyll-a concentration. The result of the study showed that bacteria population was positively correlated to chlorophyll-a concentration, area with high bacteria population has high concentration of chlorophyll-a. The high bacteria population was found in the water columnh of the 25 m deep,as well as for chlorophyll-a concentration, ranged between (4 and 90) x 106 cell per ml and (0.2 and 1.14) mg per m3 respectively. It was concluded that vertical distribution of bacteria population was closely correlated to the concentration of chlorophyll-a
Co-Authors Ariani Hatmanti Dewi, Julinasari Djoko Hadi Kunarso DWI ANDREAS SANTOSA Harayama, Shigeaki Harpasis S. Sanusi Sulistiani, - Tri Prartono Yamazoe, Atsushi Yeti Darmayati