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INDONESIA
JURNAL BIOLOGI INDONESIA
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Arjuna Subject : -
Articles 847 Documents
Keragaman Genetika Ramin [Gonystylus bancanus (Miq.) Kurz] dari Provinsi Riau Berdasarkan Profil Random Amplified Polymorphic DNA Kusumadewi, Yulita; Poerba, Yuyu S.; Partomiharjo, Tukirin
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i2.3157

Abstract

ABSTRACTGenetic Diversity of Ramin [Gonystylus bancanus (Miq.) Kurz] from Riau Province Based onRandom Amplified Polymorphic DNA Fingerprint. Gonystylus bancanus is a commercialtimber found only on peat swamp forests, scatteredly distributed in Sumatra and Kalimantan.Their existence is now under severe threat due to habitat conversion. One of the remainingnatural populations of ramin was in Riau Province, Sumatra. This study aimed to assessgenetic diversity of this species within their natural populations in Riau Province using RandomAmplified Polymorphic DNA (RAPD). RAPD profiles were obtained by performing PCRamplification using five arbitrary primers. One hundred and eleven putative loci of RAPD werescored and analysed using Popgene and NTSYS software. Eleven of RAPD bands werecommonly found in all populations and 16 bands were distinctively found in certain populations.These unique bands may serve as population diagnostic marker for such populations. Theaverage genetic diversity within population (0.1606) was lower than that of among populations(0.1894). Genetic differentiation (Gst) indicated that 95.56% of total genetic diversity in raminwas attributed to the differences among populations. The highest genetic diversity was foundin population 3 (He:0.1858) and 3 (I:0.2864), while the lowest genetic variation was observed inpopulation 1 (He: 0.1438) and 2 (I: 0.2201). Total genetic diversity for all population (Ht) was0.1982 with an average value of genetic diversity within populations (Hs) was 0.1606. The lowlevel of genetic diversity found in ramin with high population differentiation may suggest thatthese remaining populations was undergoing genetic bottleneck resulted from severe habitatfragmentation.Keywords: genetic diversity, populations, ramin, Gonystylus bancanus, RAPD.
Kajian Fenetik Pomacea spp. (Moluska: Gastropoda: Ampullariidae) Indonesia Berdasarkan Morfologi Cangkang Isnaningsih, Nur R.
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (119.779 KB) | DOI: 10.14203/jbi.v9i1.142

Abstract

ABSTRAKKeong emas Pomacea merupakan keong introduksi yang kemudian menjadi jenis invasif di Indonesia karenakeberadaannya sebagai hama menjadi ancaman bagi dunia pertanian. Identitas dan status taksonomi keong ini masihmenyisakan banyak permasalahan, salah satunya adalah karena tingginya variasi morfologi. Melalui studi ini ingindigali informasi mengenai bagaimana model pengelompokan dari berbagai variasi Pomacea yang ada di Indonesia.Hasil konstruksi fenetik menggunakan software Clad97 dari 22 spesimen Pomacea terhadap 20 karakter cangkangmenunjukkan bahwa jenis ini tidak menunjukkan pengelompokan berdasarkan lokasi. Secara umum terdapat tigapengelompokan besar. Kelompok 1 merupakan kelompok spesimen dengan kesamaan karakter bentuk dan ukurancangkang, dominasi apertur, dimensi cangkang serta penebalan peristome. Kelompok 2 terdiri dari beberapa subkelompokdengan kesamaan ciri sutura yang tidak melekuk, bentuk seluk tubuh yang menyiku, serta warna cangkangjingga kekuningan. Adapun spesimen-spesimen dalam kelompok 3, memiliki kesamaan ciri ukuran cangkang yangbesar, dominasi apertur besar, TC dan LC lebih dari 60 mm, LA lebih dari 35 mm, serta terdapat penebalan peristome.Kata kunci : Keong emas, Pomacea, invasif, variasi, pengelompokan
Kelimpahan dan Keragaman Kapang pada Sampel Tanah di Sekitar Kawasan Taman Nasional Gunung Ciremai, Jawa Barat Ilyas, Muhammad
JURNAL BIOLOGI INDONESIA Vol 5, No 3 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i3.3180

Abstract

ABSTRACTThe Abundance and Diversity of Fungi Inhabiting Soil Samples from Mount Ciremai NationalPark, West Java. A study on isolation and identification of mould inhabiting soil samples hasbeen conducted. The objective of the study was to isolate and identify mould inhabiting soilsamples from Mount Ciremai National Park, West Java. The mould isolation was based onsample dillution method with Rose Bengal Cloramphenicol Agar mould isolation media. Theabundance of mould counted by measuring the average Colony Forming Unit (CFU)/ml of allmould colonies which growth on isolation media by Total Plate Count (TPC) method. Thediversity of isolated mould was identified based on morphological character. The result showedthat the average of mould colonies between 8,5x103-11,3x104 CFU/ml. The result of mouldidentification showed that nine mould generas are Aspergillus (6 species), Chaetomium (2species), Eupenicillium, Gliocladium, Mucor, Penicillium (6 species), Rhizopus, Trichoderma(2 species), and two groups of unidentified sterile mould.Key words: abundance, diversity, mould, soil samples, Mount Ciremai National Park
Kajian Pemberian Pakan Alternatif terhadap Konsumsi, Kecernaan, dan Efisiensi Penggunaan Pakan pada Jelarang Paha Putih (Ratufa Affinis Raffles, 1821) Farida, Wartika Rosa; Prijono, Siti Nuramaliati
JURNAL BIOLOGI INDONESIA Vol 9, No 2 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i2.170

Abstract

Four cream-coloured giant squirrel (Ratufa affinis) consisted of one male and three females used in this study to determinethe effect of feeding alternatives on consumption, digestibility, and feed efficiency use. During the studyeach of the animals was placed in individual cages equipped with sleeping box. Feed given were consisting of Guava(Psidium guajava), sweet corn (Zea mays), coconut (Cocos nucifera), peanut (Arachis hypogea), cucumber (Cucumissativus), mung bean sprouts (Vigna radiata), and sunflower seed (Helianthus annuus). Feedstuffs are given based onthis animal preferences on the grain in its natural habitat. Feed given cafetaria and drinking water available ad libitum.Results showed that the average of dry matter consumed by male was 45.95 g / head / day and by female 39.14g / head / day; rough protein by male 6.99 g / head / day and by female 5.76 g / head / day ; gross energy by male2392 cal / head / day and by female 2116 cal / head / day. Feed efficiency use of male is 13,99% and female is12,63%. The average of body weight gain of the male animal is higher than that of the female, namely 6.43 g / head /day and 4.88 g / head / day respectively. The average value of digested organic matter or Total Digestible Nutrient(TDN) was higher in the female animal, namely 95.41%, than that of the male, namely 92.68%; as well as digestedenergy or Digestible Energy (DE) in the female animal was higher than that in the male, namely 93.60% and91.17%, respectively.
Peroksidasi Lipid oleh Parasetamol dan Ekstrak Air Panas Teh Hijau (Camellia sisnensis ) pada Sel Khamir Candida tropicalis yang di Simpan pada Suhu Rendah Julistiono, Heddy
JURNAL BIOLOGI INDONESIA Vol 8, No 1 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i1.3070

Abstract

ABSTRACTLipid Peroxidation by Paracetamol and Hot Water Extract of Green Tea (Camellia sinensis ) in Yeast Candida tropicalis preserved in Low Temperature. The use of C. tropicalis cell as a tool to evaluate antioxidant property of green tea to protect oxidative stress caused by paracetamol in cell level was investigated in our laboratory. Immediate availability of cell culture will significantly reduce the time of cell preparation. Low temperature preservation of cell culture is one of methods to produce cell cultures. However, low temperature might affectphysiological state of the cell. In this study, effect of low temperature preservation (4 ºC, 10 days) on the oxidative response of yeast cell treated with paracetamol and hot water extract of green tea had been investigated. Cells incubation with paracetamol 0.3 % for 2 h caused oxidative stress in both fresh and preserved culture since the content of a marker of oxidativestress, peroxyd lipids increased significantly. Whereas, concentration of peroxidised lipids in preserved cultures was lower than that of fresh culture. Increasing of peroxydized lipids followed with decreasing of cell viability in fresh culture but not in preserved culture. Green tea withconcentration of 0.1 % decreased peroxyd lipids in fresh cultures treated with paracetamol but not in preserved cultures. Green tea with concentration of 0.2 % or 0.4 % in increased peroxyd lipids in fresh cultures treated with paracetamol but not in preserved cultures. The data indicated that green tea did not show anti- or pro-oxidative effect in cultures preserved in low temperature treated with paracetamol. However, induction of super oxide dismutase (SOD), an antioxidant defense enzyme, was not observed in cell preserved in low temperature. The study revealedthat low temperature might make the cell more resistant against prooxidative properties of paracetamol.Keywords: C. tropicalis, oxidative stress, low temperature, paracetamol, green tea
Geologi Batuan Dasar Gunung Ciremai Jawa barat Samodra, Hanang
JURNAL BIOLOGI INDONESIA Vol 4, No 5 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.986 KB) | DOI: 10.14203/jbi.v4i5.3213

Abstract

ABSTRACTThe Stone Geology Structure of Ciremai Mountain West Jawa. A Middle to LateMiocene rocks association around the Ceremai Volcano, namely the Cinambo, Cantayanand Bantarujeg Formations is a deep marine sediment that physiographically belongs tothe Bogor Zone. As a submarine fan system, this turbidite sediment has already progradedto the north. The provenance of sediments is a landmass that occupied the southern partof the deep basin. Shallowing of the basin during Late Tertiary is roled by Plioceneclaystone forming of the Subang, Kaliwangu and Citalang Formations. The claystonewas deposited in a middle neritic to fluviatile environment. During the early Quaternarytime the deep basin has totally become a landmass and the building of Ceremai Volcanowas started. The difference kind of rocks will influence chemical composition of soil,and the diversity of vegetation is possibly implied by this phenomenon.Key words: stone. structure, geology, ciremai
Populasi, Ko-okurensi dan Preferensi Habitat Areca macrocalyx di Pulau Waigeo-Papua Barat Widyatmoko, Didik
JURNAL BIOLOGI INDONESIA Vol 11, No 1 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3501.742 KB) | DOI: 10.14203/jbi.v11i1.2160

Abstract

Research on population status, co-occurrence and habitat preference of the New Guinean palm Areca macrocalyx Zippelius ex Blume in hill forests of the Waigeo island (West Papua) was conducted in 2012 at six different habitat types: river bank, hill slope, hill top, intact, disturbed and converted forests. Population sizes varied spatially and were dominated by seedlings (62%) and juveniles (24%), indicating a growing population, in which recruitment and mortality were simultaneously continuous and density dependent. A. macrocalyx seemed to prefer specific habitats where river banks situated in the intact forest being the most suitable habitat. Although this palm still tolerated hill tops, the populations were suppressed and seemed to be sensitive to disturbance and changes in water table. A number of interrelating edaphic factors appeared to influence the abundance of this palm with a preference for well-drained soils with a high magnesium (Mg2+) content. High alkaline concentrations also corresponded to the density of the palm. Based on the association levels calculated using the Ochiai method, four tropical species (i.e. Licuala graminifolia, Tabernaemontana aurantiaca, Orania regalis, and Sommieria leucophylla) were positively associated with A. macrocalyx while ten other species were negatively associated. The palm tended to occupy sites with low-moderate C/N ratios where most sampled populations occurred in habitats with the average C/N values of lower than 10. Based on the r-squared values, exchangeable Mg2+ and Ca2+ appeared to have more influence on plant density and frequency than on canopy and basal area. Mortality was higher among the early growth stages but becoming very low in adult individuals. These findings suggest that edaphic factor is a determinant of the abundance and occurrence of the palm. To conserve the most important remaining populations, it is crucial to protect the most suitable sites and the existing-interconnected biotic factors in the reserve.  Keywords: Areca macrocalyx, population, co-occurrence, habitat preference, Waigeo island 
Variasi Gen Mitokondria Cytochrome b pada Dua Jenis Burung Kakatua Putih (Cacatua alba dan C. moluccensis) Astuti, Dwi
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (112.178 KB) | DOI: 10.14203/jbi.v7i2.3113

Abstract

ABSTRACTVariation in The Mitochondrial Cytochrome b Gene in The Two White Cockatoo Species (Cacatua alba and C. molucensis). DNA sequence variation in the 791-bp of mitochondrial cytocrome b gene in the two white cockatoo species (C. alba and C. moluccensis) were analyzed in this study. Two pairs of internal primers used to amplify two fragments of cytochrome b from 30 individuals cockatoo. The results show that there were genetic variations among individuals of C. alba and C. moluccensis. Twenthy eight haplotypes occured in 30 individuals studied; 14 haplotypes (Hca1-Hca14) in 16 individuals of C. alba, and 14 haplotypes (Hcm1-Hcm14)in 14 individuals of C. moluccensis. Hca5 was dominant and owned by 3individuals (H37, KBS62, 28, BBP88). Within C. alba there were 18 variable sites, 0.00701 of nucleotide diversity (Pi), 0.975 ± 0.035 of haplotype diversity (Hd), and 0.005 ± 0.002 of mean genetic distance. Whitin C. moluccensis there were 18 variable sites, 0.00830 of Pi, and 0.9999± 0.028 of Hd, and 0,010 ± 0.002 (0.001-0.010) mean genetic distance. Divergence between C. alba and C. moluccensis was 0.064 ± 0.088 %. Neigbor-joining (NJ) analysis showed two main clusters consisted of : C. alba and C. moluccensis separately, and indicated that althoughthere were some variations in the DNA sequences, but the individuals within a species remain clustered in the same cluster.Key words: genetic variation, mitochndrial cytochrome b, cockatoo bird, Cacatua alba, Cacatuamoluccensis
Aktivitas Enzim Selulase dari Khamir Candida sp. dan Debaryomyces sp. yang Diisolasi dari Lahan gambut Taman Nasional Bukit Duabelas Jambi Kanti, Atit
JURNAL BIOLOGI INDONESIA Vol 4, No 1 (2006): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.864 KB) | DOI: 10.14203/jbi.v4i1.3273

Abstract

ABSTRACTCellulalytic Activity of Candida sp and Debaryomyces sp Isolated from Peat Soil ofBukit Duabelas Natural Park, Jambi. Candida sp. and Debaryomyces sp. YeastDegrading cellulose Isolated from Peat Soil in Bukit Duabelas National Park, Jambi. Theobjective of study was to investigate the characteristic of yeast that are able to solubilizecellulose. The yeast was isolated from soil of Tarnan Nasional Bukit Duabelas Jambi.Out of 2 1 ioslates tested 2 isolates Candida sp. (Isolate J I) and Debaryomyces sp. (IsolateJ2) were able to solubilize Carboxymethyl cellulose. Other isolated soil yeasts wereRhodotor& sp, and C~ptococcusp . Medium acidity during cell cultivation variedbetween 5.8 to 7.2. The CMC-ase activity was 5.9 unit and 5.4 unit for isolate J1 andisolate 52 respectively. The Km of isolate J1 and isolate 52 were 7.7 x 10" and 8.4 x 1 0-2(% b/v) respectively. Vmaks of isolate J1 and J2 was 8.28 xlW3 dan 30.66 x lo-) pgglukosa/ml enzyme /minute, respectively.Key words: Cellulolytic Yeasts, Candida sp., Debaryomyces sp., Enzymes Activity,Taman Nasional Bukit Duabelas
Rapid Assessment on Biodiversity in Logged Forest of Tesso Nilo, Riau Province, Sumatra Prawiradilaga, Dewi M.; ., Purwaningsih; Susiarti, Siti; Sidik, Irvan; Suyanto, A.; Rachmatika, Ike; Noerdjito, Woro A.; Marakarmah, A.; Sinaga, M. H.; Cholik, E.; Saim, A.
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.132 KB) | DOI: 10.14203/jbi.v10i2.2106

Abstract

Tesso Nilo area which is located at Riau province covers an area of 188.00 ha. Recently, it is famous because of asharply increased in encroachment activities for forest conversion, especially for oil palm plantations and villagesites. It was conducted in logged forest around Segati river, Toro river, Mamahan river and Sawan river in June2003. The results showed that the area had the high richness of plant species which was indicated by the high valueof Mennhenick index. Records from the 1 ha studied plot identified a total of 360 species included 165 genera and57 families with 215 tree species 305 sapling species. Some important tree species which were included in the RedList of IUCN were ‘gaharu’ (Aquilaria malaccensis), ‘ramin’ (Gonystylus bancanus), Shorea spp. and Dipterocarpusspp. The local community utilized 83 species of medicinal plants and 4 species of toxic plants for fishing. The totalnumber of recorded bird species was 114 species represented 29% of the total Sumatran bird species. The mostimportant bird species were the Wrinkled Hornbill (Aceros corrugatus), Crestless Fireback (Lophuraerythrophthalma), Crested Fireback (Lophura ignita) and Hooked-billed Bulbul (Setornis criniger). The total numberof recorded mammal species was 34 species or 16.5% of 206 species of Sumatran mammals. The most importantmammal species included Sumatran tiger (Panthera tigris sumatrae), Sumatran elephant (Elephas maximussumatrensis), the Sun bear (Helarctos malayanus) and three species of primates: Hylobates agilis, Presbytis femoralisand Macaca nemestrina. The herpetofauna contained 15 reptile species and 18 amphibian species. The mostimportant herpetofauna was the endangered False Gharial (Tomistoma schlegelii) and the vulnerable Common Softshelledturtle (Amyda cartilaginea). The number of recorded fish species was 50 represented 18% of the totalSumatran fish species (272 species). The important fish species were Breinsteinea sp. and Chaca bankanensis whichwere unique and rare. Since insects are the largest group of animal, this study only focused on beetles. Theidentified beetles were classified into 644 species and 34 families. The important beetles were the Longhorn beetles(Cerambycidae) and the Scarab beetles (Scarabaeidae).The small mammal parasites consisted of ectoparasites whichwere categorized into 14 species and endoparasites which were categorized into 2 orders and 3 species.Keywords: biodiversity, logged forest, richness, Sumatran tiger, Sumatran elephant

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