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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
 192   193   194   195   196 
FAUNA IKAN DI SUNGAI CIMADUR, CIUJUNG DAN CIBERANGDI SEKITAR TAMAN NASIONAL GUNUNG HALIMUN, KABUPATEN LEBAK, BANTEN Ike Rachmatika; G Wahyu Dewantoro; S Sauri
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&2.1233

Abstract

Fish fauna survey were conducted in Cimadur, Ciujung and Ciberang Rivers. From these studies six fishes species were found as additional record for fishes living in Gunung Halimun National Park and its adjacent area. This finding brings the fish species living at this park to be sixty.In this record, it includes Cypriniid fishes that attain large size: Barbodes balleroides and Osteochilus hasseltii, found in the segment of the middle of R. Ciujung (18.3 m asl).
VEGETASI ALAMI DAN PERUBAHANNYA SETELAH 22 TAHUN (1986 - 2008) DI HUTAN TANAMAN Altingia excelsa Noronha CANDIKUNING-BALI Mustaid Siregar; Ni Kadek Erosi Undaharta
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.v13i2.693

Abstract

Research at the three locations of Altingia excelsa Noronha plantations in Candikuning, Bali has been carried out to examine the changes in vegetation that grows naturally in the low layer after 22 years (1986 -2008). The results showed that 40 species of seedling, and 4 species of shrubs and young trees were found in three plots of the plantation forest. Compared to the results of the previous study, 22 years before the present study (1986), species richness was decreased dramatically accompanied by changes in species composition. Crown cover of herbs group were decreased, but shrubs and young trees were increased except for the plot 1938 due to edge effects. Lightdemanding species were disappeared and replaced by shaded-tolerant species. The primary tree species which are commonly found in the surrounding natural forest and previously found in research plots had been disappeared, and replaced by late secondary tree species, and seedlings of A. excelsa which is actually animmigrant species. Succession under the plantation forest of A. excelsa are generally slow.
SISTEM SOSIAL JANTAN MONYET HITAM SULAWESI (Macaca nigra) DI CAGAR ALAM TANGKOKO-BATUANGUS, SULAWESI UTARA Saroyo Saroyo
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.v9i5.1993

Abstract

A study on male social system of Sulawesi crested black macaque {Macaca nigra) has been conducted at Tangkoko-Batuangus Nature Reserve, North Sulawesi from January to October 2008.The aim of this research was to evaluate the male social system based on the social interaction among the males.The material was a habituated group called Rambo II that had 7 adult males and 19 adult females at early stage observation. Dominance hierarchy was determined with ad libitum sampling based on their results in agonistic interaction at 3 early-days of every month. The dynamics of the dominance hierarchy was traced during 10 months. Determination of dominance hierarchy linearity used Landau's index of linearity. Data of approaches among the males and their copulation frequency was collected with focal animal sampling.Approaches interaction data were analyzed for the direction of their approaches and the scoring of approachee responds that consisted of positive, neutral, negative, and without approaching.Results showed that during 10 months, there were 3 adult males that emigrated from Rambo II and one adult male that immigrated into the group.All dominance hierarchy had linearity indexes 1.0 that meant the hierarchies are perfect linear or linear and transitive.The a-male had highest frequency of copulation both with estrous and non-estrous females.For mid-rank male, on the other hand, the frequency was not always related to their rank. There was a tendency that dominate males approached subordinate males that was proved with their up/down index. Negative respond showed by subordinate males due to approaching by dominate ones was higher than the opposite. This result indicated that dominance played role in spatial controlling and freedom of interaction, for subordinate individual, the dominate presentating likely intimidated them. From those results, it can be concluded that the social system of male Sulawesi crested black macaque in not egalitarian and more despotic, different with the social system of the female that is considered as egalitarian.
POLA RESPIRASI DAN PEMASAKAN BUAH AVOKAD H. SUTARNO; M.H. SIAGIAN
BERITA BIOLOGI Vol 3, No 6 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i6.1327

Abstract

H. SUTARNO & M.H. SIAGIAN, 1986.respiration type and ripening of avocado fruits. Berita Biologi 3(6) : 283 - 286. Respiratiqn late and ripening of avocado fruits under storage at 25°, 28 ± 1°, 31°, and 33°C were investigated. Respiration, rate increased obviously after stored for seven days. The longest ripening period was six days i.e. from 6th to 11th days under 31°C storage.The best ripening fruit performance was obtained from storage at 31°C and 28±1°C for 7 days.
KERAGAMAN GENETIK POPULASI IKAN NILA {Oreochromis niloticus) DALAM PROGRAM SELEKSI BERDASARKAN RAPD Otong Zenal Arifin; Estu Nugroho; Rudhy Gustiano
BERITA BIOLOGI Vol 8, No 6 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i6.826

Abstract

Objectives of the study was to discover genetic variability and genetic relationship of paternal half sib population of nile tilapia (Oreochromis niloticus) under Selection Program Scheme at Research Institute for Freshwater Aquaculture, in Bogor, West Java.Four populations from unrelated selected breeders were observed for genetic variability using RAPD. The analysis of amplification from each locus and fragments were used to estimate DNA polymorphisms, heterozygosity, fst and genetic distance.The range of heterozygosity of four examined populations was 0.1760-0.2168 with level polymorphic between 47.66% and 64.86%.The highest heterozygosity and polymorphic was on population 1 and the lowest one was on population 2. Fst test showed significance among the populations. The closest relationship was between population 1 and 4 (0.1978) and the furthest was population 2 and 3 (0.3289).
C0-CULTURE OF AMYLOLYTIC FUNGI Aspergillus niger AND OLEAGINOUS YEAST Candida orthopsilosis ON CASSAVA WASTE FOR LIPID ACCUMULATION Atit Kanti; I Made Sudiana
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v16i2.2207

Abstract

The objective of study was to evaluate the effectiveness of co-culture between amylolytic fungi  Aspergillus niger and lipid accumulating yeast Candida orthopsilosis for lipid accumulation on cassava waste. When grown in 5 % starch medium, all microbes was able to grow, but best growth was observed on Aspergillus niger, other microbes grew slower. Moderate growth was observed  on Saccharomycopsis fibuliger.  The two isolates were then selected for further studies. Aspergillus niger and Saccharomycopsis fibuliger were amylolytic microbes. The amylolytic activities were affected by temperature, pH and nitrogen sources.  Optimum temperature and pH for enzyme production were 30°C and 7.0 respectively. Both yeast extract and sodium nitrate were good nitrogen sources for amylase production. On cassava waste, the highest biomass and total lipid content were obtained by co-culture of Aspergillus niger and lipid accumulating yeast Candida orthopsilosis. Major lipid composition was oleic acids and strearic acids. The ability of co-culture of Aspergillus niger and lipid accumulating yeast Candida orthopsilosis grew and accumulated lipid on cassava waste would suggest that these culture were candidate for biofuel production.
KAJIAN EVALUASI LAHAN UNTUK PENGEMBANGAN CENDANA DINUSA TENGGARA TIMUR Marwan Hendrisman; Hendri Sosiawan; Gatot Irianto
BERITA BIOLOGI Vol 5, No 5 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i5.1468

Abstract

Komoditas kayu cendana menyumbangkan Pendapatan Asli Daerah (PAD) sampai 40% untuk Propinsi Nusa Tenggara Timur (NTT),sehingga dapat dijadikan komoditas andalan bagi Propinsi ini. Pulau Sumba dan Pulau Timor diduga merupakan tempat asal tumbuh cendana, sehingga untuk pengembangan budidaya cendana dapat dicari daerah yang mempunyai ekosistem yang mirip dengan daerah asalnya.Teknologi budidaya tepatguna bagi cendana perlu dikembangkan untuk memperluas areal tanam komoditas tersebut.Untuk itu perlu dibentuk suatu dewan riset cendana secara lintas sektoral dari berbagai disiplin ilmu.
HUBUNGAN AIR DAN TANAMAN DIPELAJARI SECARA TERINTEGRASI DENGAN MODEL SIMULASI DINAMIK Nuril Hidayati
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i2.1152

Abstract

Water is the most crucial factor in affecting plant growth and production.In order to assess the complex relationship between plant and water,a dynamic model of crop growth was constructed by interlinking plant growth and soil water models.The growth model mainly consists of physiological processes, i.e.photosynthesis, respiration, partitioning, leaf growth and phenological development.The photosynthesis and partitioning models are based on SUCROS, extended in two ways, the calculation of light use efficiency as a function of air temperature and extinction coefficient as a function of LAI.The development model was calculated based on thermal time concept.Water balance model comprises evaporation and transpiration as water losses, and rainfall and irrigation as water sources at 1 m - depth. Evaporation was based on Penmann Monteith formula.Both models were linked by relating the degree of growth reduction to water deficits. Simulation results showed a good agreement with observed data in predicting soil water deficits and crop water use for all of the treatments, i.e.irrigated, irrigated just after flowering, dry and rainfed.Despite the model predicted soil water considerably well, it tent to overestimate soil water deficits in the beginning of the growing period for both years. The results also showed a good agreement between simulated and observed dry matter production,especially under irrigated and rainfed conditions.
KUALITAS UMBI BEBERAPA KLON KENTANG (Solanum tuberosum L.) DATARAN MEDIUM UNTUK KERIPIK Ali Asgar
BERITA BIOLOGI Vol 12, No 1 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i1.515

Abstract

Quality testing of several potato clones (Solanum tuberosum L.) planted at mid level area for potato chips. Objective of the research is to test the quality of clones/cultivars resulted from selection. Quality test of 8 selective clones was conducted from November 2010 to February 2011 in post-harvest laboratory of Research Institute for Vegetables Lembang. Research was arranged in randomized complete block design with 4 replications. Treatments consisted of 1) klon 395195.7, 2) klon 397073.7, 3) Granola (control), 4) Merbabu-17(control), 5) 394614.117, 6) CIP 3970.77.16, 7) CIP 391846.5, and 8) CIP 394613.32. The result of research showed that differences in potato clones (as raw material) have different characteristic on specific gravity, dry matter, reducing sugar content, moisture content, starch content. There were also differences in oil content, color, flavor, crispyness and appearance of chips produced. The best clones for potato chips were Merbabu-17 (specific gravity 1.08 g/ml, dry matter 11.18%, reduction sugar 0.60%, moisture content 88.82%, starch content 4.52% and fat content of chips 38.66%), and CIP394613.32 (specific gravity 0.99, dry ingredient 12.17%, reduced sugar 0.09%, moisture content 87.83%, starch content 3.50%, fat content of chips 28.25%), and Granola (specific gravity 1.02, dry matter 17.70%, reduction sugar 0.12%, moisture content 82.30%, starch content 6.67%, fat content of chips 38.21%).
POLA KECENDERUNGAN PENANGKAPAN BURUNG-BURUNG LIAR BERNILAI EKONOMIS DAN IMPLIKASI KONSERVASINYA: STUDI KASUS DITANAH GROGOT, KABUPATEN PASER, PROVINSI KALIMANTAN TIMUR Rachmat Budiwijaya Suba; Aditya Rakhman; Rustam Rustam
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i6.1949

Abstract

The study aims at quantifying trade scale of some economically wild birds and describing captured trends which have been practised by wild bird catchers. The study was conducted in Tanah Grogot, Paser District, East Kalimantan Province, from September to December 2008, by surveying wild bird market and interviewing catchers and sellers. We measured two main attributes of market dynamics; first, each species availability in the market as the percentage of market days sampled where the species appeared; second, daily abundance of a species as the monthly average number of each bird per day for all days sampled. Seven wild bird species that have been traded commodities for years were White-rumped Shama Copsychus malabaricus (25.41%; 602.25+70.79 individuals per month), Yellow-vented Bulbul Pycnonotus goiavier (11.47%; 111.25+12.50 individuals per month), Crested Myna Acridotheres cristatellus (12.30%; 73.25+10.44 individuals per month), Spotted Dove Streptopelia chinensis (5.73%; 22.00+12.83 individuals per month), Hill Myna Gracula religiosa (12.30%;12.00+0.82 individuals per month), Greater Green Leafbird Chloropsis sonneratii (7.38%; 11.75+2.50 individuals per month) and Magpie Robin Copsychus saularis (6.56%; 8.75+1.71 individualsper month). Specific capture location within Paser District could reflect distribution and habitat preference of each bird species.

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