Jusup Subagja, Jusup
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DISTRIBUTION OF BALI STARLING (Leucopsar rothschildi) IN NUSA PENIDA ISLAND Sudaryanto, FX.; Subagja, Jusup; Pudyatmoko, Satyawan; Djohan, Cut Sugandawaty
SIMBIOSIS Vol 6 No 2 (2018)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2018.v06.i02.p02

Abstract

Bali Starling (Leucopsar rothschildi Stresemann, 1912) is endemic bird to the Bali Island. Since 1966, Bali Starling has been categoried as Critically Endangered by the IUCN Red List of Threatened Species, and the Indonesian Government Regulation No. 7 of 1999 on Preservation of Fauna and Flora. Conservation of Bali Starling has been done in the Bali Barat National Park, but has not succeeded yet. Therefore, starting in 2006 the conservation of the Bali Starling is also done in the Nusa Penida Islands, Klungkung Regency. To examine the successful of conservation of Bali Starling in Nusa Penida Islands, need the studies as follows: How is the distribution of Bali Starling? This research aims to study the success of conservation of Bali Starling in Nusa Penida Island. Specifically, the purpose of this research were to study distribution of Bali Starling. Materials and methods used in this research was known from questioned to the people in the area, and also conducted exploration. Distribution of Bali Starling in 2006 was only in three locations, and being expanded in 2015 there were at least in 12 locations. Keywords:     Bali Starling, Leucopsar rothschildi, Nusa Penida Island, Bali,distribution  
Sistematik Numerik Strain-Strain Anggota Genus Pseudomonas Pendegradasi Alkilbenzen Sulfonat Liniar Berdasarkan Sifat Fenotip dan Protein Fingerprinting Suharjono, Suharjono; Sembiring, Langkah; Subagja, Jusup; Ardyati, Tri; Lisdiana, Lisa
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 12, No 1 (2007): February 2007
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.138 KB) | DOI: 10.24002/biota.v12i1.2536

Abstract

Bacteria strains consisting of Pseudomonas sp. strain J and R isolated from river ecosystem polluted and Pseudomonas sp. strain A and B isolated from river ecosystem unpolluted by detergent were capable to degrade of LAS. The objective of this research was to determine similarity value by numerically of LAS-degrading Pseudomonas strains based on phenotype character and protein fingerprinting using three reference strains consist of Pseudomonas putida FNCC071, P. fluorescens FNCC070, and P. aeruginosa FNCC063. Phenotype characteristics examined are cellular and colony morphology, biochemical nature, capability to degrade polysaccharide, tolerance to various environmental factors and antibiotics, and ability to ferment sugar. Cellular protein fingerprinting was analyzed using SDS?PAGE discontinuous. Strains classification was determined based on Simple Matching Method similarity index by UPGMA (Unweight Pair Group Method with Average) algorithm. Based on phenotype nature, all strains have similarity value 0.61; however, based on cellular protein fingerprinting, those strains have similarity value 0.52. All strains of LAS-degraded were including in the genus of Pseudomonas.
Penggunaan Operkulum dalam Penentuan Umur pada Rhinoclavis sinensis Gmelin 1791 (Gastropoda: Cerithiidae) Zahida, Felicia; Subagja, Jusup
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 3 (2010): October 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.641 KB) | DOI: 10.24002/biota.v15i3.2601

Abstract

Age determination of the sample specimen is very important for population dynamic research of R. sinensis (Gastropoda : Cerithiidae). Operculum is a ?hard? part stick on the dorsal portion of the foot of gastropods. Operculum appeared on the day of the snails are born and have their own specific shape, size, and materials composition. The aim of this research was to describe the use of operculum in age determination of R. sinensis. The method used in this research was: the operculums were soaked into saturated sodium hydroxide, washed and mounted them in Canada balsam, and observed using binocular microscope. Regression analysis was used to find the relationship between length of operculum to length of shell, and number of adventicious layers of operculum to length of shell. The research resulted that the length of operculum was comparable with the shell length, with the regression line of Y=0.113X +1.898 (R2=0.857). The growth of adventitious? layers of the operculum coincided with the growth of the shell that in the second year, the growth of adventitious layers was two layers a year. At the age of three and four, the growth was one layer a year. During the fifth, sixth and seventh years, the growth was only a layer within three years. The regression line was Y=0.168X (R2=0.872).