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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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KEKERABATAN Maxomys surifer (Miller 1900) ASAL SUMATRA, JAWA DAN KALIMANTAN BERDASARKAN VARIASI MORFOLOGINYA Ibnu Maryanto; MH Sinaga
BERITA BIOLOGI Vol 4, No 4 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i4.1270

Abstract

Examination of morphological variation on Maxomys surifer from Sumatra, Jawa and Kalimantan were conducted using 60 adult specimens.Univariate and multivariate statistical analyses of 20 skull and four external characters showed that Maxomys surifer was not sexually dimorphic (P >0.05). The discriminant analysis based on skull characters indicated that Sumatran population had two distinct group; north (Ketambe and Tapanuli) and South to Central Sumatra, the north of Sumatra form was closer to Kalimantan and Jawa.
STUDI PERKEMBANGAN GONAD IKAN BETOK (Anabas testudineus Bloch) DENGAN RANGSANGAN HORMON Suriansyah Suriansyah; Agus Oman Sudrajat; Muhammad Zairin Jr
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i4.769

Abstract

The purpose of this study was to evaluate the effect of water in oil in water (w/o/w) emulsion containing 17a-methyltestosterone on gonad development of climbing perch. The results showed administration of 200 ug/kg 17o-methyltestosterone in w/o/w emulsion enhanced gonad development of climbing perch. In this treatment, testosterone concentration increased but estradiol-17p concentration decreased. Both hormones ranged 10,55-15,13 ng/dl and 0.96-5.66 ng/dl, respectively. This treatment also accelerated the development of egg diameter which were eggs e" 0.20 mm became 71.00% after 60 days, and development of egg nucleus position into germinal vesicle breakdown (GVBD) in day 60 was about 17.50%.
EPIFIT DAN LIANA PADA POHON DI HUTAN PAMAH PRIMER DAN BEKAS TERBAKAR KALIMANTAN TIMUR, INDONESIA Herwint SIMBOLON
BERITA BIOLOGI Vol 8, No 4 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i4.2115

Abstract

Epiphytes and lianas on the trees grown in three categories of gradation of Mixed Dipteroearp Forests (natural, lightly degraded and heavily degraded after forest fires) have been studied in Bukit Bangkirai Nature Recreation Park, East Kalimantan.166 species of epiphytes and lianas were found in those three study plots, among them 89; 134 and 56 species were distributed in the natural, lightly degraded and heavily degraded forest plots, respectively. 30 species were distributed widely in three types of forests, 37 species were tend to be the shade tolerant species and 16 species as light demanding species, since they were distributed in the closed and open forests, respectively. The most common species that distributed in those three studied plots were Derris elegans, Spatholobus gyrocarpus and Embelia ribes. Number of epiphytes and lianas on the single individual tree host were increase as the tree diameter increased. Number of species of epiphytes and lianas on a species of host were increased as the number of individuals were increased, indicates that most of these epiphytes and lianas were not host specific.
KEMAMPUAN MEROMBAK KARBOHIDRAT, PROTEIN DAN LEMAK JASAD RENIK YANG BERASAL DARI KECAP ELIDAR ELIDAR; DUDI D. SASTRAATMADJA; S. SAONO; S. BROTONEGORO
BERITA BIOLOGI Vol 2, No 5 (1979)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i5.1400

Abstract

Di Indonesia umumnya kecap dibuat secara fermentasi yang masih bersifat tradisional. Bahan dasar yang telah dimasak dibiarkan saja ditumbuhi berbagai jenis jasad renik. Adakalanya sampai ditumbuhi lebih dari 20 jenis kapang, di samping bakteri dan khamir. Karena belum dipakainya jasad renik tertentu dalam pembuatan kecap secara tradisional tadi maka mutu kecap yang dihasilkan akan berbeda-beda. Dalam proses fermentasi kecap penting adanya jasad renik yang mempunyai kemampuan kuat dalam perombakan serta efisien dalam penguraian bahan substrat dengan waktu fermentasi yang pendek. Menurut Prescot & Dunn (1949) kapang yang aktif dalam fermentasi kecap adalah Aspergillus sp., yang merombak karbohidrat dan protein. Bakteri dan khamir di samping ikut merombak jugamenentukan pembentukan rasa dan aroma.Jasad renik dengan daya rombak yang tinggi diharapkan dapat dimanfaatkan dalam perbaikan cara-cara pembuatan serta mutu kecap. Untuk mendekati persoalan peranan jasad renik dalam proses fermentasi kecap perlu diteliti kemampuan jasad renik tersebut, terutama peranannya dalam merombak karbohidrat, protein dan lemak. Data yang dilaporkan berikut ini merupakan salah satu hasil penelitian Proyek ASEAN Bidang Kedelai dan Bahan Pangan Berprotein Tinggi.
RHIZOSPHERE FUNGI OF GUNUNG HALIMUN NATIONAL PARK Nandang Suharna
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.v5i6.1079

Abstract

An ecological study was conducted to assess the occurrences of rhizosphere fungi in three dominating trees (Altingia excelsa, Schima wallichii and Castanopsis javanica) within Gunung Halimun National Park.Rhizosphere trees in Gunung Halimun National Park was mainly dominated by Trichoderma (47%), followed by Penicillium (16%), Cunninghamella (10%),Mortierella (15%),Acremonium (7%), and Humicola (6%).Similar composition of rhizosphere fungi was shown by the three trees and mainly consisted of Trichoderma and Penicillium.There was negative correlation of rhizosphere to fungal composition which was shown by C.javanicus and the positive correlation was shown by A. excelsa and S. wallichii.Based on total of fungi encountered, Trichoderma was found to be the most common and dominant fungus in rhizosphere of those trees.Other fungi were also considered common were Penicillium, Mortierella, Cunninghamella, Acremonium and Humicola. Based on the number of samples, the frequency of the occurrence of Trichoderma was the highest (100%), followed by Penicillium (88%),Cunninghamella (59%), Humicola (47%), Acremonium (41%), Mortierella (35%), Verticillium (18%), Cylindrocladium (12%), Aspergillus (6%), and Gliocephalotrichum (6%).
HUBUNGAN SEBARAN MAMALIA KECIL DENGAN KONDISI LINGKUNGAN DI HULU DAS CITANDUY, JAWA BARAT Maharadatunkamsi Maharadatunkamsi
BERITA BIOLOGI Vol 18, No 1 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i1.3376

Abstract

Citanduy watershed is one of major watersheds in Java that located through north to south covering four regencies, these are: Ciamis, Tasikmalaya, Garut and Cilacap. As a consequences of environmental changes, this watershed that covering an are about 473.967 ha has faced in deterioration on its roles. This research was aimed to study on the distribution of small mammals at the upper of Citanduy watershed according to their habitat and altitudinal changes. Results indicated that 20 species of small mammals clustered in three groups of habitat. Group 1 consisted of small mammals that occupied the habitat of mixed pines-calliandra. Group 2 comprised of small mammals lived at secondary forest, bambu plantation, and mixed secondary forest-bamboo; and group 3 were mainly occupied shrub. In addtion, an altitude was also affected the distribution of small mammals in the area surveyed. The results of this study are to be used as a basic information that describe the quality of upper Citanduy watershed.   
SEBARAN KEPITING MANGROVE (CRUSTACEA: DECAPODA) YANG TERDAFTAR DI KOLEKSI RUJUKAN PUSAT PENELITIAN OSEANOGRAFI-LIPI 1960-1970 Rianta Pratiwi; Rahmat Rahmat
BERITA BIOLOGI Vol 14, No 2 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i2.1854

Abstract

Brachyura is a group of Crustaceans species often found in mangrove areas. Mangrove crabs in this study were from mangrove areas found in almost all Indonesian waters that were stored in the Reference Collection of Marine Biota Division, Research Center for Oceanography, Indonesian Institute of Sciences (LIPI) from 1960 to 1970. The aim of this study was to assess the presence and distribution of mangrove crabs from the waters of Indonesia as a search and as a reference collection from 1960 to 1970.A total of 359spesimens were observed, consisted of 54 species, 22 genera, and seven families. The data were stored in a database system to perform spatial information analisys.
SKRINING AKTIVITAS ENZIM Bacillus sp. YANG DIISOLASI DARI TAMAN NASIONAL GUNUNG HALIMUN Iman Hidayat
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&2.1232

Abstract

Fifty strains of Bacillus sp. isolated from Gunung Halimun National Park (GHNP) were characterized. All strains are characterized by amylase, protease, phosphatase, ligninase, and cellulase activity.Thirtyseven isolates gave positive reaction for amylase activity, 46 isolates for protease activity, 3 isolates for phosphatase activity, 3 isolates for ligninase activity, and 36 isolates for cellulose activity.These findings indicates that Bacillus sp. that isolated from GHNP is a potential microbe for enzymes technology and biotechnology application.
TINJAUAN KEANEKARAGAMAN MOLUSKA AIR TAWAR DI BEBERAPA SITU DI DAS CILIWUNG - CISADANE Ristiyanti M. Marwoto; Nur R. Isnaningsih
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.v13i2.692

Abstract

The freshwater molluscs (snails and bivalves) can be found in many type of water course either flowing or stagnant water. Some of them have survived living in bad condition such as polluted water. There are 199 situ (small lakes) in Jabodetabek (Jakarta, Bogor, Depok, Tangerang, Bekasi) have been reported but only 20 % were in good condition, even 12% have dissapeared that caused by silting up of the situ. The aim of the study was to evaluate the diversity of the molluscs as well as to know the condition of on 36 situ along Ciliwung River and Cisadane River. Based on the collected samples, there were 13 species of snails and three species of bivalves. The freshwater snails Filopaludina javanica, Melanoides tuberculata, Pomacea canaliculata always occur in these situ but the bivalves Anodonta woodiana, Pilsbryoconcha exilis and Corbicula javanica only occur in situ Ciranji and Kemuning along Cisadane and Ciliwung rivers, respectively. The decreasing of the mollusc diversity was about 38% in Ciliwung River and 73% in Cisadane River, caused by polluted and silting up of the situ .
ANALISA VEGETASI HUTAN RIPARIAN DATARAN RENDAH DITEPI SUNGAI NGGENG, TAMAN NASIONAL KAYAN MENTARANG, KALIMANTAN TIMUR Purwaningsih Purwaningsih
BERITA BIOLOGI Vol 9, No 5 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i5.1992

Abstract

Study on the riparian forest of Nggeng River bank at Kayan Mentarang National Park was carried out with quadrate method. It would cover species composition and vegetation structure. The results of a floristic inventory of trees with DBH e" 10 cm in a lowland riparian forest of Nggeng river side show that 106 species, consist of 53 genera and 29 families in the plot of 2 hectare sampled. The two leading families in terms of number of species were Dipterocarpaceae and Myrtaceae while according to the total sum of importance values were Dipterocarpaceae and Fabaceae. The common species in two plots were Saraca hulletii, Parashorea parviflora, Dipterocarpus oblongifolius, Castanopsis motleyana, and Dryobalanops lanceolata. The diversity of the river-side were lower than the other forest in Kalimantan and in north is more rich of species than south plot. The forest type on the river side were shown mixed dipterocarp forest, because the forest dominated by dipterocarps species. Forest structure on the sides of Nggeng River were shown there were some emergent trees, they are up to 45 m tall and in diameter >100 cm. Some emergent trees in the location were such as Parashorea parviflora, Dipterocarpus oblongifolius and Shorea spp. Lists on the most 10 leading family trees, 10 leading family saplings, density, frequency and important values of each inventory plants species are provided.

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