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INDONESIA
JURNAL BIOLOGI INDONESIA
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
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Articles 17 Documents
Search results for , issue " Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA" : 17 Documents clear
Adaptasi Ekofisiologi Terhadap Iklim Tropis Kering: Studi Anatomi Daun Sepuluh Jenis Tumbuhan Berkayu Rindyastuti, Ridesti; Hapsari, Lia
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2290.447 KB) | DOI: 10.14203/jbi.v13i1.3089

Abstract

ABSTRACTStudy on foliar anatomic structure of tropical plants are useful to study various aspects of plant life related to photosynthetic, productivity, carbon sequestration, adaptation to environmental stresses as the results of global climate change, etc. This study was conducted to investigate foliar anatomic structure of ten tropical woody plant species including Barringtonia asiatica, Dracontomelon dao, Heritiera littoralis, Diospyros discolor, Calophyllum inophyllum, Antidesma bunius, Schleichera oleosa, Syzygium cumini, Madhuca longifolia dan Adenanthera pavonina; also to discuss its implication to ecophysiological adaptation to tropical dry climate. The results showed that ten woody plant species studied had variation of adaptation pattern to dry tropical climate, exposure to high light intensity or open shade and photosynthesis activity. Plant species in Group II (Antidesma bunius, Madhuca longifolia and Adenanthera pavonina) has relatively higher adaptation compared to Group I (Diospyros discolor, Calophylum inophyllum, Dracontomelon dao, Schleichera oleosa, Heritiera littoralis, Baringtonia asiatica and Syzygium cumini). Some foliar anatomic structures including palisade shape and size, stomatal index, stomatal density, spongy mesophyll thickness, the ratio of P/T and P/S are important characters that can be used as indicator of changes in environmental factors; particularly the density of stomata as indicators of climate change in dry tropic area.Keywords: adaptation, dry climate, eco-physiology, foliar anatomy, woody plant
Kajian Populasi Kepiting Kenari di Pulau Batudaka Kepulauan Togean, Sulawesi Tengah dan Rekomendasi Manajemen Populasi Heryanto, Heryanto; Wowor, Daisy
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3104

Abstract

ABSTRACTThis study aimed to quantify the population of Birgus latro in the Batudaka di Togean islands, Central Sulawesi. The research on robber crab was conducted in Batudaka Island, Togean, Tomini Bay, Central Sulawesi. In the study site, 21 plots measuring of 50x50 m2 were created bounded by raffia. Feed in the form of shredded coconut is placed in each plot in the afternoon. At night was performed observations and catchs. In the "base camp" every crab crab carapace caught measured in carapace length and weight. During the study, 277 crabs were caught, consisted of 173 males (62.45%) and 104 (37.55%) females. Based on the formula calculation of Schiller (1992) population figures obtained 821 803 ± 195 030 crabs in Batudaka Island. By regression analysis between carapace length with weight, it was found that the growth of B. latro is negative allometric, i.e., weight gain is faster than the increase length of carapace. The weight gain of female is slightly higher than that of the male. Whether male crab population or female equally composed of 9 age groups. This study showed that 66.7% of male crab and 29.1% of female crab has entered the market size.Keywords: Birgus, crab, carapace
Identification and Characterization of Infectious Bronchitis Virus (IBV) in Indonesia Dharmayanti, Ni Luh Putu Indi; Indriani, Risa
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3095

Abstract

ABSTRACTInfectious Bronchitis Virus (IBV) is an acute viral and highly infectious disease which attacks the respiratory system of chicken. The impact of economic losses is very large since it decreases the egg production and itcauses the abnormal of egg shapes, decreased of body weight and death. In Indonesia, the IBV disease is still a serious problem in poultry regarding to many variants which arise from mutations of the IB virus. The decreasing possibility of the vaccination effectiveness due to incompatibility of strains used towards the virus circulated in the field. The variants of IB virus have not been well-documented in Indonesia since the lack of characterization of this virus. In this study, we characterize the IB virus isolates obtained from our local outbreaks in the field in order to determine the variant of IB virus in Indonesia and provide recommendations for the improvements of IB vaccine seed viruses which is adapted to IB virus circulating in the field. The IB virus characterized in this study shows close genetic relationship with the IB virus from Taiwan and China. However, it did not correlate with the local IB virus that has been found previously.Keywords: Identification, Character, IBV, Indonesia
Pertumbuhan Optimal Bakteri Laut Pseudomonas aeruginosa LBF-1-0132 dalam Senyawa Piren Safitriani, Safitriani; Thontowi, Ahmad; Yetti, Elvi; Suryani, Suryani; Yopi, Yopi
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3100

Abstract

ABSTRACTPyrene is a high molecular weight chemical compound belongs to polycyclic aromatic hydrocarbon (PAHs) group that are difficult to degrade by environment. Biodegradation techniques using indigenous marine bacteria are used to be as an effort to reduce pollutants that are carsinogenic. The objectives of this research are to screen of 18 marine bacteria isolates qualitatively by sublimation method and quantitatively by growth test and to optimize degradation activity of marine bacteria isolates by pyrene concentration and cell concentration. Identification by 16S rDNA and phylogenetic tree analysis were conducted to determine the molecular basis of bacterial identity. The result of sublimation showed that 15 isolates were positive result for pyrene degradation and classified to 3 groups. The first group consisted of 5 isolates that can produce clear zone, while the second group are 5 isolates with isolate color changes. The third group have both of activities. Growth test showed that isolate LBF-1-0132 has high potency to degrade pyrene compound. Isolate LBF-1-0132 is capable of degrading pyrene compounds optimally at concentration of 600 ppm and optimum cell concentration of 20. Based on 16S rDNA gene analysis, isolate LBF-1-0132 is Pseudomonas aeruginosa with 98% identity.Keywords :pyrene, marine bacteria, optimization, 16S rDNA identification
Utilization of Garlic with and without Addition of Enzymes on Black-capped Lory (Lorius lory Linnaeus, 1758) in Captive Breeding Sari, Andri Permata; Nugroho, Herjuno Ari; Maharani, Sinta
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3090

Abstract

ABSTRACTPhytogenic feed additives are plant-derived product such as herbs, spices, and essential oils used in animal feed to improve their performances and health. Garlic (Allium sativum) is well-known as a spice and herbal medicine. Garlic possesses antimicrobial activity and increase nutrient digestibility in animal. The objectives of this study were to compare the effect of supplementing garlic, exogenous enzyme and combination of both on Black-capped Lory (Lorius lory) in digestibility and bacterial count on excreta. Five Black-capped Lory were used in the study and fed with control diet (K1), control diet supplemented with garlic powder (K2), control diet supplemented with Allzyme SSF (K3), and control diet supplemented with both garlic powder and Allzyme SSF (K4). Variables observed include feed consumption, Apparent Metabolizable Energy (AME) value and bacterial count in excreta. Adding enzyme to the diet increased AME compared to control. AME value of K1 was 3,579 kcal/kg, meanwhile AME value of diet K3 and K4 were 3,690 kcal/kg and 3,619 kcal/kg respectively. Adding garlic to the diet did not give significant improvement to AME value. The highest inhibition of bacterial population was in K2 mash. Combination of allzyme and garlic addition showed decreased in bacterial number.Keywords: Allzyme SSF, AME value, bacterial population, black-capped Lory, garlic
Aplikasi Kajian DNA Molekuler dan Fenotipik Pada Program Pelepasliaran Burung Kakatua Zein, Moch Syamsul Arifin; Haryoko, Tri; Fitriana, Yuli Sulistya; Sulistyadi, Eko; Prawiradilaga, Dewi Malia
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.497 KB) | DOI: 10.14203/jbi.v13i1.3105

Abstract

ABSTRACTThere are six species of cockatoos in Indonesia which are well known as exotic, smart, and they can be trained in a variety of attractions. Thus, many people want to keep those birds as pets. All of pets which have been kept by community should be evaluated from various aspects before being reintroduced to their natural habitat. The examination of sex and species of illegal cocktoos play as a key role for the reintroduction programme. Theobjective of this study was to evaluate the reliability and effectivity of evaluation technique of morphometric and molecular for reintroduction programme of cockatoos. We used the COI gene sequences from 68individuals of cockatoos from pet communities in and around Jakarta and four sequences from GenBank. The phylogenetic analysis used the neighbor-joining method, in which the genetic distance matrix calculations with Kimura 2-parameter models that are implemented on a pairwise distance calculation in the MEGA program version 6:05. The result of the genetic variation of the cockatoo species which shows intraspecific divergence was Cacatua alba (n=4)= 0%, C. galerita (Australia n=9)= 0.6%, C. galerita (Indonesia n=53)= 0.3%, C .goffiniana (n=3)= 0%, C. moluccensis (n=7)= 0.1%, and C. sulphurea (n=2)= 0.3%, with a range of 0-0.6%. The results indicate that the average of intraspecific of COI in the cockatoos community was 0.25±0.055%, and interspecific divergences ranged from 3.1 to 11.6%. The phylogenetic tree shows the monophyletic clade of cockatoo species in Indonesia. In addition, DNA barcode analysis and molecular sexing could correct the error and doubts the result of five individual species identification and two individual sexing identification of C.galerita by morphological identification. The results of morphological examanation base on body weight, body length and head-bill length of C. galerita triton were not significantly different (P?0,5). Finally, 19 individuals C. galerita triton and two individuals P. aterrimus were reintroduced to their natural habitat.Keywords: cockatoo, barcodes DNA, reintroduction
Keragaman Jenis Khamir Penghasil Etanol yang Diisolasi dari Makanan Fermentasi di Kepulauan Riau Sumerta, I Nyoman; Kanti, Atit
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (901.807 KB) | DOI: 10.14203/jbi.v13i1.3096

Abstract

ABSTRACTInformation on genetic diversity of fermentative yeast which produce ethanol is very crucial in developing biofuel production in Indonesia. Research on ethanol producing yeasts is interest of many scientist. The objective of study was to reveal yeast diversity in Indonesian fermented foods that able to produce ethanol. The sample of fermented foods were collected in the traditional market in Karimun Besar Island, Kepulauan Riau. Yeast isolation was performed using serial dilution with direct plating and enrichment culture with glucose as carbon source. Fifteen of isolates were isolated and identified by amplification of D1/D2 region LSU 26S rDNA. Its ethanol production characteristic was analyzed base on fermentation activity and measurement with gas chromatography for ethanol content. The result revealed that 8 yeast species were found belong to Ascomycetous and grouped into 5 clades which are able to produce ethanol. The highest ethanol production was obtained by Saccharomyces cerevisiae Y15Kr107 (3.53%) followed by Torulaspora delbrueckii Y15Kr104 (1.63%), Saccharomyces cerevisiae Y15Kr093 (1.58%), Candida glabrata Y15Kr110 (1.4%), Torulaspora delbrueckii Y15Kr103 (1.29%), Candida glabrata Y15Kr108 (1%), Torulaspora globosa Y15Kr094 (0.92%), Kodamaea ohmeri Y15Kr096 (0.61%), and Pichia kudriavsevii Y15Kr106 (0.31%) Y15Kr105 (0.21%) Y15Kr109 (0.16%). Other yeasts strains did not produce ethanol but may play different role in fermentation process.Key words: yeast, fermented food, ethanol, Kepulauan Riau
Struktur Genetik Populasi Burung Betet Jawa (Psittacula alexandri alexandri) Berdasarkan Sekuen DNA Mitokondria Gen ND2 Astuti, Dwi
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3101

Abstract

ABSTRACTThis study was aimed to determine the structure and genetic characteristics of the Javan Parakeets (Psittacula alexandri alexandri) in some populations in Java Island based on ND2 gene sequences. This study used 26 birds composed of 9 birds from Bogor (West Java), 8 birds from Cepu/Blora (Central Java), 5 birds from Yogyakarta (DIY), and 4 birds from Ngawi (East Java). Blood samples were taken from each bird and DNA was extracted, and then a single fragment of ND2 gene was PCR amplified. A totaly of 1020-bp of DNA sequence of all individual birds were analyzed and produced low genetic distance between bird populations: 0.0031 ± 0.0010 (0.0024 ± 0.0012 to 0.0058 ± 0.0022). The highest genetic distances among individual bird were found in the Yogya’s population followed and were lowest in Cepu/Blora’s population. There were 16 haplotype sequences (Hpa Hpa1-16) found in 26 birds. There were some identical haplotypes in each population, but each population has different haplotypes from each other. The highest haplotype diversity and nucleotida diversity were found in Yogya’s and Bogor populations. NJ tree showed that each individual bird clustered together corresponded to the population/progeny.Keywords: Javan Parakeets, Psittacula alexandri alexandri, population, ND2 gene sequence genetic distance, diversity
Floristic and Forest Structural Study in Batangtoru Watershed, North Sumatra Sambas, Edy Nasriadi; Siregar, Mustaid
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (701.596 KB) | DOI: 10.14203/jbi.v13i1.3091

Abstract

ABSTRACTA Forest ecology research has been done in Batangtoru watershed, North Sumatra to determine the species composition and vegetation structure. The study was conducted by using plots in four locations: Purnama,Gerhana, Kejora, and Teluk Nauli. A total of 387 species in 184 genera and 77 families were found. The species richness of trees (dbh >10 cm) was 192 species in 116 genera and 55 families, the richness of saplings(dbh 2 - 10 cm) was 211 species in 111 genera and 55 families, while the richness of seedlings (dbh <2 cm) was 153 species in 95 genera and 50 families. Tree density ranged from 850–1,700 individuals/ ha, while basalarea was around 66.76 to 104.54 m2/ha. The forest canopy at Purnama and Gerhana plots was relatively similar, forming three layers, while the Kejora and Teluk Nauli plots were simpler with only two canopy layers. Basedon a principal components analysis of tree species, the forests in the research area tended to form three community types: 1) forest dominated by Pentaphylacaceae, 2) mixed dipterocarp forest, and 3) forest garden,or natural forest communities enriched with a variety of economically valuable forest tree species and therefore classified as an agroforestry system.Keywords : Floristic, structure, forest community type, Batangtoru watershed, North Sumatra
Notes on the Mass Occurrence of the Ciliate Mesodinium rubrum (non-toxic red tide) in Malacca River, Malaysia Pau, Suriyanti Su Nyun; Nasir, Dzulhelmi Muhammad; Usup, Gires
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3106

Abstract

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