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INDONESIA
JURNAL BIOLOGI INDONESIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 847 Documents
 26   27   28   29   30 
Hutan Gambut Suaka Margasatwa Giam Siak Kecil dan Hutan Gambut PT Arara Abadi – Popinsi Riau; Vegetasi dan Kerusakannya Sadili, Asep
JURNAL BIOLOGI INDONESIA Vol 12, No 1 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i1.2307

Abstract

This study aims to determine state of plant vegetation stands within of damage level at the Giam Siak Kecil wildlife sanctuary (Tasik Betung area) and Conservation Forest PT Arara Abadi (Bukit Batu area) - Riau. Several plots of different vegetation types were used in this study. The number of plots develoved in Tasik Betung were 13 plots, while in Bukit Batu were 11 plots (50 x20 m). The plots were  conducted for trees (10 x10 m) and belta (5 x 5 m). The two study sites were generally susceptible to interference, especially in Tasik Betung. The total number of trees and belta were recorded for 178 species, 91 genera and 43 families. The main trees species at Tasik Betung was dominated by Pandanus Artocarpus (IV=17,35%), while Bukit Batu was Gonystylus bancanus (IV=21,35%), The  belta  category at Tasik Betung was dominated by Gymnacanthera contracta (IV=19,31%), while  in Bukit Batu was Mangifera parvifolia (IV=34,71%). Species protected  of Endangered species found were Dillenia excelsa, Garcinia bancana, Shorea parvifolia, S. teysmaniana, S.uliginosa, Vatica rassak, and V. umbonata.  Keywords: Bukit Batu, peat swamp forest, Riau, vegetation, Tasik Betung. 
Merekonstruksi Habitat Curik Bali Leucopsar rothschildi Stresemann, 1912 di Bali Bagian Barat Noerdjito, Mas; Roemantyo, Roemantyo; Sumampau, Tony
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 | DOI: 10.14203/jbi.v7i2.3120

Abstract

ABSTRACTHabitat Reconstruction of Bali Starling Leucopsar rothschildi Stresemann 1912 in WesternPart of Bali Island. Bali Starling Leucopsar rothschildi Stresemann 1912 is an endemic speciesof north western part of lowland of Bali Island. The land use changes of original habitat BaliStraling to resettlement and agriculture area since the year 1980, has caused this speciesmoved to the marginal habitat in the Prapatagung Peninsula and resided in Telukkelor areas. Inwet season this bird in Prapatagung Peninsula can have enough food from vegetation in themonsoon forest in Telukkelor, but in dry season the birds must look for the food in evergreenforest near Prapatagung. At the end of 2005, this species was categorized as an extinct speciesin the wild, but population in captured are still abundant. In 2007 and 2008, the release of thisbird in the nature has been done in Prapatagung peninsula area. In following year birdmonitoring showed that some pairs of these birds can breed sucessfully.The development of Bali province has caused the end of adding more the electrical powersupply from Java electrical power system. To transmite the electrical power to Bali, extra highvoltage electrical power transmission infrastructure (SUTET) that will be passing and cuttingthe lowland forest ecosystem in Prapatagung Peninsula is needed. Other infrastructures suchas Jawa–Bali bridge and high way were under studied to develop in similar area. Theinfrastructures were assumed will decrease the carrying capacity of evergreen forest insupporting Bali Starling food especially during dry season. Based on the recent condition,study on the habitat recovery of Bali Starling should was conducted especially on the originalhabitat that already changed. The results showed that local state land tenure of Sumberklampok,Sumberbatok, Tegalmuara and Tanjunggelap as in the past known as Bali Starling habitatshould be returned back their function as home of Bali Starling. To support this action plantinventarisation has been conducted to understand the rest of plant diversity in supportingBali Starling conservation.Key words: Bali starling, Leucopsar rothschildi, reconstruction, habitat.
Pengaruh Kompos dan Berbagai Pupuk Hayati terhadap Pertumbuhan dan Hasil Temulawak (Curcuma xanthorrhiza) Sugiharto, A.; Widawati, Sri
JURNAL BIOLOGI INDONESIA Vol 3, No 9 (2005): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i9.3280

Abstract

ABSTRACTThe Influence of Compos and Several Biofertilizers on the Growth and the Harvesting ofTemulawak (Curcuma xanthorrhiza). Curcuma xanthorriza is one of the potentialmedicinal plants. Usually this plant is planted only as additional plant among the mainhorticultural plants. This plant is used as medicine plant, and usually grown not in fertile soils.So, this research tried to use the additional fertilizer such as compost and the potentialmicrobes. The aim of the research was to know the influence of the compost and the potentialisolates on the growth of the Curcuma xanthorrhiza. The research had been done at the greenhouse with Randomized Completely Design, by using polybag with 20 cm diameter. Therewas three replications. The results analyzed with ANOVA method, and Duncan Test at 0,05.The used soil was podsolik yellowish red that collected from Darmaga, Bogor. The resultshowed that the use of compost and biofertilizer increased the harvesting of the tubers from15,76% to 52,79%. The using of either BPP isolates or the mycorrhyza, increased the driedweigh of tubers of Curcuma xanthorrhiza.Keywords : Compost, potential microbes, Curcunla xanthorrhiza
Pengaruh Pemberian Kompos dan Pupuk Hayati terhadap Aktivitas Fosfatase dan Urease pada Tanah yang Ditanami Brokoli (Brassica oleracea L.) Rahmansyah, Maman; Antonius, Sarjiya
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 | DOI: 10.14203/jbi.v11i1.2163

Abstract

Organic farming basically work on improving organic soil substrate which give impact to plant growth promoting bacteria. On the other hand, the use of agrochemicals leave chemical residues in the soil. In an effort to get the quality of organic matter and selected microbes as a biofertilizer material, this research had been done. Half ripe composting (HRC) process of organic substrate was utilized to enrich soil containing agrochemical residue, while ripe compost (RC) substance amended to soil free residue. That compost was used in broccoli cultivation. Microbial degrading pesticide was added to compost as biofertilizer formula. Even though plant biomass and the yield of flower was unclearly affected, but moreover the HRC application as due to “semi-on-site-composting” practices in soil containing agrochemical residue would cut off compost processing time. Soil microbial activity measured through soil respiration, urease and phosphomonoesterase indicated that the value was lower in samples collected from the soil free residue compared with soils containing residues. Utilization of chicken manure resulted in the availability of high nitrogen compounds and causing imbalance absorption by plants, compared with the use of HRC and RC in this study. Keywords: soil respiration, phosphatase, urease, Brassica oleracea L. 
Isolasi Bakteri Pendegradasi Phenanthrene dari Batanta-Salawati Raja Ampat Papua Riffiani, Rini
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 | Full PDF (652.216 KB) | DOI: 10.14203/jbi.v6i2.3153

Abstract

ABSTRACTIsolation of Bacteria Degrading Phenanthrene in Batanta- Salawati Districts Raja AmpatPapua. Polycyclic aromatic hydrocarbons (PAHs) are important environmental contaminantsin soil and water. These compounds have a potential risk to human health, as many of them arecarsinogenic and toxic to marine organisms such as diatome, gasthrophode, mussel, and fish.Phenanthrene is one of the hazardous hydrocarbon compounds. The purpose of this researchwas to characterize microbial strains from Batanta-Salawati Raja Ampat Papua Island and theirability to remove phenanthrene. Two isolates were identified at their physiological characteristicsbased on salinity tolerance, pH tolerance and the composition of nitrogen base. Molecularidentification based on 16S rRNA gene sequences indicated that bacteria had the highestsimilarity with Rhodobacteraceae bacterium F9 and Roseobacter sp. RW 37.Rhodobacteraceae bacterium F9 could grow optimum on ONR7a media with 5% salinity andat pH of 5-7,5 while Roseobacter sp. RW 37 could grow optimum on ONR7a media with 2%salinity and at pH of 6,2-7,5.Key words: Phenanthrene, physiological characteristic, molecular identification, Raja Ampat
Hidrolisis Xilan Bagas Menggunakan Xilanase Bacillus subtilis XJ28 dan Karakterisasi Enzimnya A, Gading Wilda; ., Yopi; Meryandini, Anja
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 (2865.185 KB) | DOI: 10.14203/jbi.v11i1.2150

Abstract

Xylanase extracellular enzyme is produced by various microbes. Hydrolysis of bagasse xylan can produced xylooligosaccharide. The main components of hemicellulose was xylan at bagasse. IdentificationBacillus subtilisXJ28 using primer 16S RNA. The qualitative test used Congo-Red stainning, whereas quantitative test used Dinitrosalicyclic Acid (DNS) methode. The hydrolyzing product was analysed used TLC (Thin Layer Chromatography). This research aims were to characterized xylanase from isolate XJ28 and analyzing the hidrolyzing product from xylan bagasse. Pretreatment process included delignification using sodium hypochlorite 1% and xylans extraction using alkaline (NaOH 15%) as the solvent. The result of the xylans extracted from bagasse was 9,9% xylan and after purification was obtained 3,4% soluble xylan. Xylanase activity has the highest activity at 96 h of incubation time with activity 11,3 U/mL. Xylanase Bacillus subtilis XJ28has the optimum condition at pH 7 and 50 ºC and stable up to 72 hr of  incubation time at room temperature and 4 ºC. The hydrolysis product using xylanase crude enzyme was reducing sugar with molecular weight around  of sucrose and oligosaccharide. Keywords: xylanase, xylan bagasse, hydrolysis, TLC. 
Cendana (Santalum album ) dan Keanekaragaman Inang Sekundernya Di Daerah Pesisir Kolbano, Nusa Tenggara Timur Wawo, Albert H.; Abdulhadi, Rochadi
JURNAL BIOLOGI INDONESIA Vol 3, No 3 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (183.651 KB) | DOI: 10.14203/jbi.v3i3.3468

Abstract

ABSTRACTSandalwood (Santalum album ) and diversity of their host secondary in Kolbano Village, Lesser Sunda Island. The population of sandalwood (Santalum album ) declined every year because is not cultivated yet by the local people. Inhibiting factors are not possess the knowledge and skills on sandalwood cultivation especially in host plant of sandalwood comprehension. Forest fire and illegal logging lead to lose of flora diversity and deteriorate of sandalwood growth. Result of this research shows that population of sandalwood in Kolbano Village is very low are four plants in Kampong Fatu Un and seven plants in kampong Spaha. In kampong Fatu Un was found eight species plant that compose to unity formation with sandalwood and seven species of them are secondary host of sandalwood. In kampong Spaha was obtained nine species plant that compose to sandalwood formation and seven species of them are secondary host of sandalwood. The highest distribution frequency of plant in two mentioned kampong was got by leucaena (Leucaena glauca) plant with respectively value 51.28% (Fatu Un) and 53.57 % (Spaha), whereas diversity value belong to Simpson Index were 0.71 (Fatu Un) and 0.64 (Spaha).Key words: Sandalwood, host plant, Kolbano village, Lesser Sunda Island
Bird Diversity in Several Habitat Types in Pondok Ambung Research Station, Tanjung Puting National Park, Central Kalimantan Purnomo, Harri; Mulyani, Yeni A.; Mardiastuti, Ani
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.528 KB) | DOI: 10.14203/jbi.v8i2.3041

Abstract

Diversitas Burung pada Beberapa Tipe Habitat di Stasiun Riset Pondok Ambung TanjungPuting Kalimantan Tengah. Penelitian diversitas burung yang dilakukan di kawasan hutangambut, dataran rendah, hutan kerangas dan hutan bekas kebakaran dilakukan setiap hari duakali yaitu pukul 6:00 - 09:00 dan 15:00-18:00 pada kurun waktu 38 hari mulai 29 Juli hingga 5September 2009. Metode pengamatan yang dilakukan adalah metode”point count” dan hasilyang diperoleh tercatat 107 jenis (38 famili) ada di kawasan stasiun ini, dan masing-masing ada48, 50, 45 dan 50 jenis burung dapat dijumpai di hutan gambut, hutan sekunder dataran rendahswamp, hutan kerangas dan hutan bekas kebakaran.Kata Kunci: Diversitas burung, habitat, Tanjung Puting
Kajian Hidro-Klimatologi Daerah Cirebon-Indramayu-Majalengka- Kuningan (Ciayu Majakuning) Gunawan, Dodo
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 | Full PDF (1339.787 KB) | DOI: 10.14203/jbi.v5i3.3187

Abstract

ABSTRACTCase Study of Hidro-Climatology at Cirebon-Indramayu, Majalengka-Kuningan (Ciayu Majakuning). Case Study Water balance calculation has beenconducted in the region of Cirebon, Indramayu, Majalengka and Kuningan or abbreviatednicely as the Ciayu-MajaKuning region. The hidro-climatological component such asevapotranspiration and precipitation were calculated using the NOAH Land-Surface Model(LSM). Model output of monthly data used in the calculation span in the period of 2001-2007.The model has grid box or model resolution of 25 km x 25 km. From the calculation, it is obtainedthat the average of evapotranspiration in this region is 3.1 mm/day or 90 m/month. The maximumvalue of 3.8 mm/day is occurred in May whereas the minimum value of 2.8 mm/day is occurredin December. The highest monthly precipitation occurred in the mountain region (Kuningan)of 450-500 mm/month. In this study area, the period of August-November is the water deficitwhile the period of December-July is the water surplus period in term of water balance. Fromdistrict division point of view, Indramayu is the driest area, and gradually following thetopography height, Kuningan district is the wettest area. Implication of these results to watermanagement aspect is that the dry Area such as Indramayu needs more water supplies byirrigation for agriculture. The sustainable of hydrology cycle path way from Kuningan andMajalengka as the water resources because of highly precipitation to the downstream area(Indramayu and Cirebon) where the precipitation are less is very important in this region.Key words: Water balance, evapotranspiration, hydrology cycle, NOAH-Land-Surface Model
Resolusi Kerancuan Perkiraan Luas dan Laju Deforestasi Hutan Mangrove di Indonesia Suyadi, Suyadi
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.v9i2.177

Abstract

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