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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Folia Medica Indonesiana
Subagyo Yotopranoto
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Agriculture, Biological Sciences & Forestry Environmental Science Other

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EFFECTIVENESS OF Betta splendens AS A BIOLOGICAL PREDATORY AGAINST Aedes aegypti LARVAE Saniya Hanum Permata; Subagyo Yotopranoto; Kusmartisnawati Kusmartisnawati
Folia Medica Indonesiana Vol. 51 No. 4 (2015): Oktober - December 2015
Publisher : Faculty of Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.716 KB) | DOI: 10.20473/fmi.v51i4.2857

Abstract

Dengue Hemorrhagic Fever (DHF) is caused by dengue virus and transmitted by Aedes aegypti mosquito. There are several fish species known to be used as a biological predator of Aedes aegypti larvae, such as Betta splendens. The purpose of this study was to examine Betta splendens as a biological predator of Aedes aegypti larvae. The larvae used were in the fourth stage. The Betta splendens consisted of four replicate groups, 3 and 6 months male age group, and 3 and 6 months female age group. The effectiveness rate of predation was only counted based on the speed of eating of 25 larvae in the aquarium containing 3 liters of water. Statistical test was performed with Annova with the parameters fish body weight and time to prey. The longest mean of preying time was found in 3 months aged male fish group (mean body weight = 1.474 grams), with a mean time of prey = 153.80 seconds. The shortest mean preying time was found ini 6 months aged female fish group (mean body weight = 2.566 grams), with a mean time of prey = 142.41 seconds. In conclusion, female 6 month-aged fish with highest mean body weight is most effective againts Aedes aegypti larvae. The body weight can affect the speed of preying, but body weight is only one of some variables that affect the speed and effectiveness beside gender and age of Betta splendens.
ISOLATION OF Streptomyces sp. FROM LAPINDO MUD SOIL, SIDOARJO, EAST JAVA PROVINCE, INDONESIA AS A LARVICIDE CANDIDATE AGAINST Aedes aegypti Subagyo Yotopranoto; Rochmah Kurnijasanti; Etik Ainun Rohmah
Folia Medica Indonesiana Vol. 53 No. 2 (2017): JUNE 2017
Publisher : Faculty of Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.549 KB) | DOI: 10.20473/fmi.v53i2.6355

Abstract

Streptomyces sp. is a bacterium that can live in many kind of habitations e.i. marine, sea sponge, coastal area, soil, desert soil, river bank etc. Many antibiotics and secondary metabolites are produced by this bacterium. Several secondary metabolites of the bacterium can be used as an insecticide against insects including mosquito larva.The purpose of this study was to search and isolate until species of Streptomyces sp. from Sidoarjo Lapindo mud soil in East Java province that can be used as a larvicide against Aedes aegypti larva, the dengue haemorrhagic fever vector.The method of study was to collect several mud soil samples from Sidoarjo Lapindo. The collected samples were cultured in ISP-4 media for producing mix-cultures. Then, to isolate the suspected colony of Streptomyces sp. by culturing again in several replications on ISP-4 media in petri-dish. The pure isolates were cultured in ISP-4 slant media. There were could be obtained eight pure isolates of Streptomyces sp.The characterization of 16S rRNA of Streptomyces sp. was done in order to determine the species. DNA isolation was done and followed by DNA sequencing, then compared to Gene Bank with BLAST program. The results showed that the sequence nucleotide bases of Streptomyces Sp-D6 had high similarity to Streptomyces sp. 171524, beside the sequence nucleotide bases of Streptomyces Sp-D7 and Sp-D9 had high similarity to Strepto-myces sp. ACT-01578 and ACT-175695. These three species can be used as larvicide candidate against Ae. aegypti.
Microscopic-Based Trend in Imported Malaria among Workers of Trenggalek District Returning from Kalimantan Island, Indonesia During 2012 – 2016 Heny Arwati; Kusmartisnawati Kusmartisnawati; Subagyo Yotopranoto; Poppy Hidayat; Yoes Prijatna Dachlan
Journal of Tropical Life Science Vol. 9 No. 1 (2019)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.09.01.14

Abstract

Malaria in Indonesia remains a significant health problem. Trenggalek District is one of the receptive malaria areas in East Java Province, Indonesia, with mainly imported malaria from outside Java Island. The people of this district accustomed to traveling to outside Java where malaria is endemic for temporary working purposes. Usually, they have acquired malaria infection in the areas where they worked and brought to their homeland during their return to the district. The number of imported malaria cases depend on the returning season of the workers. When no workers return from outside Java malaria case is zero. During the year of 2012-2016 microscopic examination of Microscopic examination of Giemsa-stained thick blood films of the workers have been done in the working activity of Pandean Primary Health Center on their arrival from Kalimantan Island either by active or passive case detection. Microscopically positive data were reported herein to describe the trend of imported malaria in the studied areas. A total number of malaria-infected workers were 118 cases. The trend towards increasing case number yearly between 2012 and 2013 being 1.35%, then decreasing between 2013 and 2016 to only 4 cases in 2016. Different patterns of imported malaria by month were seen in each year but no specific pattern throughout the year. The Plasmodium vivax infection was predominant every year and followed by Plasmodium falciparum and mixed infection of those two species. Trends of imported malaria cases in Trenggalek district were decreased and increased irregularly in each month yearly. However, the number of cases declined annually during 2013 – 2016. Antimalarial prophylaxis and insecticides prevent the workers from malaria infection.
Co-Authors Etik Ainun Rohmah Heny Arwati Kusmartisnawati Kusmartisnawati Poppy Hidayat Rochmah Kurnijasanti Saniya Hanum Permata Yoes Prijatna Dachlan