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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 28 Documents
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Search results for , issue "Vol 9, No 3 (2008)" : 28 Documents clear
ANALISIS BEBAN PENCEMARAN DAN KAPASITAS ASIMILASI DANAU SENTANI, PAPUA SEBAGAIUPAYAKONSERVASI LINGKUNGAN PERAIRAN Auldry F Walukow; D Djokosetiyanto; KholiPdan KholiPdan; Dedi Soedharma
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.777

Abstract

The Lake Sentani has problems. Firstly, high of erosion number i.e. 94.52 ton/ha/year of which the value is higher than erosion tolerance at average 25 ton/ha/year.Secondly, high concentration of chemical pollution such as Cu (0.0201- 0.1081 mg/L) and Zn (0.21 - 0.36 mg/L) which these values are above water quality standard approved by the government as ruled in PP 82 Tahun 2001 about the management of water quality and water pollution. Therefore research and management are needed to find solution for the sustainability of this lake. The aims of this research is to be acquainted with carrying capacity of Lake Sentani through analyzing 1) the pollution load, and 2) the assimilation capacity of Lake Sentani aquaculture. The collected information is important for future aquaculture environmental management and conservation. Result shows that the pollution loads from river are obtained as follows (ton/month): TDS (441.806 to 775.287), BOD (3.510 to 7.801) and COD (7.737 to 16.055).The assimilation capacities from lake are obtained as follows (ton/month): TDS (12.18494), BOD (11.31973) and COD (122.4184).The number of pollution loads (TDS, BOD and COD) are under the assimilation capacity.
TINGKAT KELANGSUNGAN HIDUP FRAGMEN KARANG Acroporaformosa YANG DITRANSPLANTASIKAN PADA MEDIA BUATAN YANG TERBUAT DARI PECAHAN KARANG (RUBBLE) Nur Fadli
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.782

Abstract

Coral reefs around the world continue to decline.Corals killed by natural or anthropogenic disturbances are often degraded into rubble. This rubble is dynamic, easily shifted by storms and currents which may forms "killing fields" for coral juveniles, hindering coral recovery. In order to rehabilitate the coral reef, artificial substrates are always used as artificial reefs both for coral transplantation and recruitment. Unfortunately, most artificial substrates are expensive and used material from outside of the ocean (for example concrete/cement base). In order to develop a new low-cost artificial substrate that can be replacing the concrete/cement-base as a media for coral transplantation and coral recruitment, the modified coral rubble were tested in Seribu Islands, Jakarta. Two different net (nylon and polyethylene) were used to form or to shape rubble into a compact shape, stable and strong substrate.The stability of the rubble and the complexity of the surface which is created by the net make this substrate suitable for coral transplantation and coral recruitment. In 6 m, the highest survival was recorded for coral fragments that were transplanted on cement-base (58%). The lowest survival was recorded on nylon + rubble (16%). While, in 10 m, the highest survival was found on cement-base (40%) and the lowest was on polyethylene + rubble (3%). The modified coral rubble is a potential method for coral transplantation and coral recruitment. However, this approach requires testing at additional sites to determine the replicability of the results.
AKTIVITAS NITROGENASE BINTIL AKAR DAN KADAR KLOROFIL DAUN KACANG HIJAU {Phaseolus radiatus L.) PADA BERBAGAI JENIS DAN KADAR ASAM FENOLAT AWahid Rauf
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.787

Abstract

Phenolic acids are one of the many secondary metabolites causing toxic upon the growth and development of plant. Phenolic acids are produced by plant and subsequently released into soil, and appears to be involved in biochemical interaction between plants and other living organisms in soil. The research was conducted to study the effect of various kinds and doses of phenolic acids on nitrogenases activities and cholorophyll content of mungbean. Research was done in the glass house of Soil Science Departemen, Faculty of Agriculture, Gadjah Mada University (GMU) from April to June 2004. The experiment was arranged by randomized block design in three replications. The treatment consist of four kinds phenolic acid i.e. vanilic, p-coumaric, ferulic and p-1hydroxybenzoic with concentration at 250, 500, 1000 and 1500 mg kg-Â respectively. One treatment was without phenolic acids as control. Result indicated that phenolic acids could reduce nitrogenases activities and chlorophyll content up to 53.35% and 29.98% respectively. The toxicity of p-hydroxybenzoic against both nitrogenases activities and chlorophyll content was higher than other phenolic acids.
STUDI FITOKIMIA Ocimum spp.: KOMPONEN KIMIA MINYAK ATSIRI KEMANGI DAN RUKU-RUKU Sri Budi Sulianti
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.778

Abstract

Isolation of essential oils of two species of Ocimum (kemangi and ruku-ruku) were done by hydrodistilation. The chemical composition of those essential oils were analysed by GC-MS. Totaly 38 chemical components of kemangi essential oil were identified, and six of them are the major chemical constituents, ie. ethyl hexadecanoic acid (17.72 %), ethyl octadecanoic acid (14.83 %), ethyl 9-octadecenoic acid (10.62 %), methyl eugenol (4.88 %), Z-citral (7.02 %) and geranial (7.86 %), On the other hand, the essential oil of ruku-ruku contain 31 components with the main five major chemical components, i.e. ethyl hexadecanoic acid (19.33 %), ethyl octadecanoic acid (15.39 %), ethyl 9-octadecenoic acid (11.30 %), methyl eugenol (8.69%) and zerumbona (4.76 %).
DETEKSI LOGAM BERAT PADA PERAIRAN, SEDIMEN DAN SIRIP IKAN BADUKANG {Anus caelatus HAN A. maculatus) DIMUARA SUNGAI KAHAYAN DAN SUNGAI KATINGAN, KALIMANTAN TENGAH Edison Harteman; Dedi Soedharma; Adi Winarto; Harpasis S Sanusi
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.783

Abstract

The study sites were located in the river mouths of Kahayan and Katingan Rivers of Central Kalimantan. The purpose of this study was to evaluate concentration of heavy metals on the water, sediment, Arius (catfish) fin through concentration and bioconcentration factor (BCF); data were analysed by regression and correlation analysis. Collected samples were water and fish.Water sample and fish bone were analysed by Atomic Absorption Spectrophotometer (AAS). The results indicated that the concentrations of Pb>Cd>Hg were occurred in the water and hard fins, which the bioconcentrations of Hg>Cd>Pb were in the hard fins, while the bioconcentration factors (BCFs) of Pb>Hg>Cd were in the sediment.Moreover, it seems that heavy metals in the waters absorpted and accumulated by sediment and hard fins increased along with heavy metal concentration in the water, whereas heavy metals in the sediment absorpted and accumulated by hard fins increased along with heavy metal concentration .in the sediment.
KEANEKARAGAMAN TUMBUHAN HUTAN "GUNUNG LUMUT" KABUPATEN PASIR, KALIMANTAN TIMUR Harry Wiriadinata
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.788

Abstract

The diversity of forest plants found in three locations in Gunung Lumut Protected Forest, East Kalimantan had been studied in November 2005 in which 252 number of herbarium specimen have been collected, encompassing 194 of herbs and shrubs,33 of trees, 21 numbers of climbers and 4 numbers of orchids.Among the collections like some members of Begoniaceae are interesting for their limited distribution and endemicity.
HUBUNGAN TRANSPIRASI DENGAN HASIL DAN RENDEMEN MINYAK BIJI JARAK PAGAR (Jatropha curcas L.) Charles Y Bora; E Sulistyono; S Yahya; Z Mahmud
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.779

Abstract

The objective of this research was to evaluate the relationship between transpiration, yield and seed oil content of jatropha/jarak pagar (Jatropha curcas L.). The research was conducted at Cikabayan Research Garden of IPB July 2007-July 2008.The experimental design was Randomized Block Design with two factors and three replications. The first factor was genotype of Jatropha: IP-1A, IP-1M and IP-IP. The second factor was irrigation frequency: 7, 14, 21 and 28 days.The observed variables were evapotranspiration and yield component.The results show that the irrigation frequency of 7 days gave a higher evapotranspiration and transpiration rate than 14, 21 and 28 days irrigation frequencies. The differences affected yield component of each genotipe. The interaction effects between genotype and irrigation frequency were fruit number per plant. The transpiration positively and strongly related to fruits number, seed productions and oil production. Increased transpiration was followed by increasing on fruit number 0.014 (0.112 fruits/1/plant) for IP-1A and 0.024 (0.183 fruits/1/plant) for IP-IP; and increasing by 0.029 g (0.23 g/1/plant) for IP-1A and 0.024 g (0.19 g/1/plant) for IP-IP in seed productions. The transpiration correlated to oil production but not to oil content. Each mm of transpiration increased the oil production 0.0094 g (0.075 g/1/plant) for IP-1A and 0.0073 g (0.058 g/1/plant) for IP-IP. Water use of IP-IP genotype was more efficient than IP-1A in fruits number, but the IP-1A genotype more efficient in seed and oil productions. The differences on growth and yield responses of the jatropha genotypes to transpiration can be used as the model to describe the relationship between transpiration and growth and yield of the plant.
KONSTITUEN KIMIA MINYAK ATSIRI TIGA JENIS TUMBUHAN FAMILI RUTACEAE Yuliasri Jamal; Sri Budi Sulianti
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.784

Abstract

Hydrodistilation process of Feroniella lucida, Clausena harmandiana and Swinglea glutinosa leaves, 0.15%, 0.25 % and 0.20% essential oils were obtained respectively. The GC-MS analysis results shows the essential oil of Feroniella lucida contains w-desil ethanoate (38.23%), 1-decanol (11.01%), 1-decanol acetate (10.82%), and the essential oil of Clausena harmandiana contains a-pinene (12.23%) and copaene (12.40%).On the other hand, the essential oil of Swinglea glutinosa contains isocariophylene (10.09%), 3,3,7,7-tetramethyl-5-(2-methyl-l-prophenyl)-tricyclo 4.1.0.02.4 heptane (21.80%) and nerolidol type 2 (21.34%).O

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