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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 2,125 Documents
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KERAGAMAN MAMALIA DISEKITAR DAERAH PENYANGGA TAMAN NASIONAL GUNUNG HALIMUN, KECAMATAN CIPANAS, KABUPATEN LEBAK Agustinus Suyanto; Gono Semiadi
BERITA BIOLOGI Vol 7, No 1&2 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i1&2.2062

Abstract

The fieldworks for inventory and collection on mammals in Gunung Halimun National Park (OHNP) had been carried out for long time; however the works only focused on the areas belong to Bogor District. Therefore, the fieldwork was carried out in the buffer zone of the GHNP in Lebak District.The fieldwork had collected 70 numbers consisted of 16 species of mammals, of which five species were new records for GHNP and of those five species, two species (Glischropus javanus and Myotis sp.)were new collection for the Museum Zoologicum Bogoriense-Research Center for Biology-The Indonesian Institute of Sciences (LIPI).The Baduy people were noticed to hunt fruit-bats from some caves for their food.It was suggested a monitoring activity on the utilization of fruit-bats should be conducted for the conservation of the fruit-bats.Further fieldwork outside the Bogor District in the future should also be considered, particularly on the area along the river.
KEHIDUPAN UDANG REGANG, MACROBRACHIUM SINTANGENSE (DE MAN) FEIZAL SABAR
BERITA BIOLOGI Vol 2, No 3 (1979)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i3.1392

Abstract

Pengetahuan mengenai perkembangan dan kehidupan udang pada umumnya sangat penting untuk memecahkan masalah hubungan antar jenis dalam sistematika, begitu juga dalam usaha pembibitan dan pemeliharaan.Dari sekitar 37 jenis udang air tawar yang terdapat di Indonesia, hanya dua jenis yang telah dipelajari kehidupannya, yaituMacro brachium rosenbergi (de Man) danM. idae (Heller),yang dilakukan oleh Ling & Merican (1962) dan Nataraj (1947). Dalam bulan Mei, Juni dan Juli 1976 telah di laksanakan pengamatan terhadap perkembangan dan perilaku kehidupan udang regang. Macrobra chium sintangense- (de Man 1898), baik stadium larva maupun yang dewasa.Udang regang adalah udang air tawar yang umum dijumpai, tersebar luas di Muangthai, Malaysia, Kalimantan, Sumatera dan Jawa (Holthuis 1950).Udang tersebut dipelihara di akuarium tanpa banyak mengalami kesukaran dan perlakuan.
THE GROWTH DYNAMICS ON TREE SPECIES OF FAGACEAE FAMILY IN A TROPICAL MONTANE RAIN FOREST OF WEST JAVA, INDONESIA Herwint Simbolon
BERITA BIOLOGI Vol 5, No 6 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i6.1071

Abstract

A one ha (100 x 100 m ) permanent plot each was established at sub-mountain (1000 m altitude) and mountain forests (1800 m altitude)in Gunung Halimun National Park,West Java in 1996.Both plots were monitored periodically in order to understand the population dynamics of tree species, an important aspect on understanding forest ecology.Number of individuals and total basal areas of Fagaceae species represented about 10 and 20.5% of total species in sub-mountain and 38 and 56.1% of total species in mountain forest.The distribution pattern of tree height(H, in m) of the similar diameter (D in cm) was consistently lower in mountain forest than of sub-mountain forest.The highest mortality index in sub-mountain and mountain forests was occurred on Lithocarpus sp.(ruui) and Castanopsis acuminatissima, respectively.As a whole, in both study sites, number of mortal individuals of all Fagaceae species during 1996-200 was higher than of recruit individuals.The growth and population dynamics of the Fagaceae species in both sites within 1996-2000 study periods were also discussed.
PERTUMBUHAN, SINTASAN DAN PRODUKSI IKAN NILA MERAH (Oreochromis niloticus) YANG DIBERI KOMBINASI PAKAN KOMERSIL DAN AMPAS TAHU HASIL FERMENTASI Hidayat Suryanto Suwoyo; Sri Redjeki Hesti Mulyaningrum; Rachman Syah
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.3305

Abstract

The study aimed to evaluate the combination between commercial feed and fermented tofu waste feeding for growth, survival rate and production of red Tilapia Oreochromis niloticus in pond. The study was conducted in Experimental Pond Installation of Research Institute for Coastal Aquaculture, Maros, South Sulawesi, using eight ponds with 2,500 m2 in size. Red Tilapia fingerlings (±8 cm in length) were reared for 112 days with 1 individu/m2 of stocking density. The feeding treatments were of 100% commercial feed (A), 75% commercial feed + 25% fermented tofu waste (B), 50% commercial feed + 50% fermented tofu waste (C), and 25% commercial feed + 75% fermented tofu waste (D). Feeding frequency was given twice a day using concentration 10% of biomass weight in the first month, and decreased by 3% of biomass weight in the fourth month. Experimental was designed by a completely randomized designed consisted of four treatments and two replications for each treatment. Observed variables were growth, survival rate, feed conversion ratio, production, and water quality. Present study indicated that different levels of combination of commercial feed and fermented tofu waste had significant effect on growth (P<0.05), but did not have significant effect on survival rate, production, and feed conversion ratio (P>0.05). Feeding by combination of 75% commercial feed + 25% fermented tofu waste could be utilized optimally by Tilapia. During experiment, pond water quality was in conducive condition to support the growth and survival rate of red Tilapia.
POTENSI EKSTRAK PEGAGAN (Centella Asiatica) DAN KUNYIT (Curcuma longa) UNTUK MENINGKATKAN AKTIVITAS ENZIM GLUTATION PEROKSIDASE (GSH Px) PADA JARINGAN HATI TIKUS Tuti Aswani; Wasmen Manalu; Agik Suprayogi; Min Rahminiwati
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1832

Abstract

This experiment was designed to study the effect of pegagan (Centella asiatica) and turmeric (Curcuma longa) extracts on the activities of glutathione peroxidase (GSH- Px) in liver of white Spraque Dawley rat aged 2 months old with average weight of 200 grams. Pegagan was extracted using infuse method, and turmeric was extracted using dekokta method. The activity of GSH-Px was measured using Flohe and Gunzler’s methods. Extract pegagan and turmeric were assumed to have both preventive and curative treatments. For the preventive treat- ment, extract pegagan and turmeric at concentrations of 22.05 mg/ml : 184.1 mg/ml could increased the activity of GSH-PX enzyme, i.e. 232.60 ± 21.40 mU / mgprotein. This was approximately 79% than the levels of GSH- Px enzyme in normal liver without paracetamol which was 190.78 ± 9.28 mU/mgprotein. For the curative treatment, extract pegagan and tumeric at concentration of 22.05 mg/ml : 184.1 mg/ml could improved GSH- Px enzyme activity (i.e. 239.01 ± 47.40 mU/ mgprotein). This figure was about 92% higher than the levels of GSH-Px enzyme in the liver normal without paracetamol which was 190.78 ± 9.28 mU/mg protein. Pegagan and turmeric extracts with a high concentration could increased the activity of GSH-Px enzyme, thus potential as curative treatment.
KAJIAN PENGARUH SEL IMOBIL Arthrobacter NRRL B-3728 TERHADAP AKTIVITAS DAN STABILITAS ENZIM GLUKOSA ISOMERASE Triantarti Triantarti; Hendro Santoso M
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i3.1224

Abstract

This project focused on the immobilization of glucose isomerase (GI) from Arthrobacter B-3728. The whole cells immobilization technique using glutaraldehyde and gelatine type B220 was used in this research. The optimum time for harvesting Arthrobacter cells was determined before immobilization.The Arthrobacter cells were harvested after 56-72 h fermentation when the GI activity reaching 0.515-0.603 U/ml broth. The best treatment for cell immobilization was found using 5% gelatine when the GI activity reaching 0,888 U/ g immobilized cells. The optimum pH was not changed (pH 8) but the sensitivity to the pH was changed for immobilized cells compared to the free cells. However, the stability of the immobilized cells was lower compared to the free cells for long isomerization process. Further research are still needed for the development of immobilization technique for Arthrobacter B-3728.
ESTIMASI BIOMASA DAN KARBON TERSIMPAN PADA Pinus merkusii Jungh. & de Vriese DI HUTAN PINUS GN. BUNDER, TN. GN. HALIMUN SALAK Ruddy Polosakan; Laode Alhamd; Joeni S. Rahajoe
BERITA BIOLOGI Vol 13, No 2 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i2.684

Abstract

A study on the biomass and carbon stock estimation of Pinus merkusii Jungh. & de Vriese plantation has been conducted on 17-years and 30-years old pine forest in Gunung Bunder, Halimun Salak National Park. The method used was the allometric with non destructive technique. The results showed that pine trees density of 30-years old pine was 542 trees ha-1 ; the basal area (BA) was 26.8 m2 ha-1; trees density of 17-years old pine was 1,398 tree ha-1 with BA was 36.2 m2 ha-1. The estimation of biomass, carbon sinks and CO2 sequestration of 30-years old pine were 203.7, 96.5 and 354.2 ton ha-1, respectively. Meanwhile, the estimation of biomass, carbon sinks and CO2 sequestration of 17-years old pine were 188.3, 86.8 and 318.5 ton ha-1, respectively. Value of the environmental services derived from the CO2 absorption for the development of a pine forest ranged from US.$ 1,847.09 to 2,054.22, at two ages of pine trees.
KEANEKARAGAMAN DAN DAYA DEGRADASI SELULOSA JAMUR TANAH DIHUTAN BEKAS TERBAKAR WANARISET-SEMBOJA, KALIMANTAN TIMUR Suciatmih Suciatmih
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i2.2026

Abstract

In order to know the effect of isolation method on the occurrence and capability of soil fungi to degrade cellulose,a study was conducted in postburning forest in Wanariset-Semboja, East Kalimantan. Soil fungi were isolated using three isolation methods:incubation at 45° C, treatment with 50 % ethanol for 15 minutes, and heat treatment at 70° C for 15 minutes.Plates for heat incubation and for other methods were incubated at 45° C and 27° C for three days, respectively. Cellulose degradation test of isolated fungi was examined using Carboxy Methyl Cellulose (CMC) media. Results showed that isolation method affected diversity and population of soil fungi. Heat treatment at 70° C for 15 minutes appeared to have highest diversity and population of soil fungi. Eupenicillium Javanicum var javanicum (van Veyma) Stolk & Scott, Talaromyces byssoclamydoides Stolk & Samson, T. flavus(Klocker) Stolk & Samson, T. stipitatus C.R. Benjamin, and Penicillium argillaceum Stolk et al. were dominant in postburning forest in Wanariset-Semboja, East Kalimantan. Twenty-one isolated fungi degraded cellulose.
TANAMAN BERPERAWAKAN SEDANG DAN TINGGI DI PEKARANGAN TELUKNAGA, CITEUREUP DAN PACET S. ATMOWIDJOJO; Z. FACHRUROZI
BERITA BIOLOGI Vol 3, No 2 (1985)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i2.1360

Abstract

S. ATMOWIDJOJO & Z. FACHRUROZI. 1985. Plants with medium and tall statures in the kitchen gardens in Teluknaga, Citeureup and Pacet. Berita Biologi 3(2): 37 - 48. Analyses on plants of kitchen gardens showed the presence of 25 species of middle-stratum and 23 species of higher stratum in three studied localities. For the middle-stratum, only 28% were found in common, while the higher stratum 21.73%. Bananas were the most common middle-stratum found in 3 localities, coconut and mango tiees were the most common in Teluknaga, and rarnbutans in Citeureup. Fertilizers were used only at the most 25%, but for clove and citrus trees in Citeureup and Pacet by more than 50% growers. Most of the fertilizer used was manure, but for higher stratum plants in Teluknaga synthetic fertilizers were used more. Pest management was not commonly practiced. If done, synthetic insecticides were generally used.
REGENERASIPROTOPLAS TANAMAN TERUNG DAN KETAHANAN REGENERAN TERHADAPPENYAKIT BAKTERILAYU Ali Husni
BERITA BIOLOGI Vol 7, No 6 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i6.862

Abstract

Protoplasts regeneration was studied on 3 cultivars of eggplant (pupel, green, ang white fruits) and the regenerant were tested for their resistance to bacterial wilt. The researh was conducted in different steps, including protoplast isolation, protoplast purification, protoplast culture, cell suspention dilution, shoot regeneration, plantlet aclimatization, and testing for the resistant to bacterial wilt. Observations were made for protoplast number of each cultivar, protoplast cell wal formation, cell division, number of cell colony, microcalli, and shoot, percent of plantlet survival, in acclimatization, and the resistance of regenerants to bacterial wilt. Data was analized by calculating the average, percentage, and standart deviation. Results show that the combination of 0.5% cellulase Onozuka RS, 0.5% macerozyme R-10, 0.05% MES, and 9,1% mannitol in CPW solution was able to isolateds alot of sprotoplast (10 ) in each cultivars. The first culture incubation with out lighty in both (KM8P and VKM) media and reach which 0,2 mg/1 2,4-D, 0,5 mg/1 zeathin, 1 mg/1 IAA, promoted the formation of cell wall and cell division developed to microcalli. Regeneration media of MS, applied with vitamin MW, 0,1 mg/1 NAA, and 2 mg/1 zeathine produced 13 shoots.. From 21 regenerants acclimatized only 15 regenerants survive. There were differences among the regenerants in their resistance to bacterial wilt,3 regenerants resistant, 2 regenerant recovery (tolerant) and 10 regenerants were susceptibel.

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