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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
 111   112   113   114   115 
KEANEKARAGAMAN KUMBANG LUCANID {Coleoptera: Lucanidae) DI TAMAN NASIONAL BOGANINANIWARTABONE, SULAWESI UTARA Roni Koneri
BERITA BIOLOGI Vol 10, No 2 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i2.1971

Abstract

The objective of the research is to study the lucanids beetle diversity (Coleoptera: Lucanidae) in Bogani Nani Wartabone National Park, North Sulawesi. Research was conducted between June 2008 and August 2008. Ecological samplings were conducted in three degrees of forest habitat (primary forest, secondary forest and margin forest). Beetles were surveyed by using light traps. Results indicates that number of species recorded are 82 individuals consist of 10 species. This results also indicates that habitat type has a strong effect on lucanid beetle community. Statistical analysis shows significant different of species richness, abundance and species diversity among habitat types.
BEBERAPA METODE PENGAMBILAN EKTOPARASIT PADA BURUNG MERPATI POS (COLUMBA LIVIA GMELEN) JANITA AZIZ; M. AMIR
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1305

Abstract

JANITA AZIZ & M. AMIR. 1988.Some ectoparasites collecting methods of racing pigeon (Columba livia Gmelin). Berita Biologi 3(8):382 - 385.Extraction of ectoparasites of living racing pigeons was done using modified "Fait Isle".The insectisides used for the extraction were pyrethrum,caumaphos and chloroform.The number of acarines extracted during the night was higher than that during the day.In addition insecticides spraying treatment extracted more acarines than fumigation.From the 3 kinds of insecticides used,chloroform proved to kill more acarines than the other two insecticides.
POPULASI POHON JENIS DIPTEROCARPACEAE DITIGA TIPE HUTAN PAMAH KALIMANTAN Herwint Simbolon
BERITA BIOLOGI Vol 9, No 1 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i1.803

Abstract

Data of Dipterocarpaceae species have been extracted from 8 studied plots of 1-ha each, distributed in three types of natural forest in Kalimantan (those were 4 plots in mixed dipterocarps forest, 2 plots in peat swamp forest and 2 plots in heath forest types) for further population analysis. Number of Dipterocarpaceae species in mixed dipterocarps forest type was higher than of in two other forest types, however mean number of individual per species was higher in peat swamp and heath forest types than of in mixed dipterocarps forest type. Some of Dipterocarpaceae species are adapted to heath and peat swamp forest type conditions indicated by the number and distribution of population of the species in both forest types. The higher the population number of juvenile trees 5-10 cm in diameter, the lower population number of mature trees of diameter 50cm up, indicated the higher tree population the higher mortality rate. However, survivorship of tree will higher as the tree diameter higher. Survivorship of trees in mixed dipterocarp forest is higher than of in peat swamp and heath forest types.
KEANEKARAGAMAN KHAMIR YANG DIISOLASI DARI SUMBER DAYA ALAM PULAU ENGGANO, BENGKULU DAN POTENSINYA SEBAGAI PENDEGRADASI SELULOSA I Nyoman Sumerta; Atit Kanti
BERITA BIOLOGI Vol 15, No 3 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i3.2220

Abstract

The present study revealed the occurrence and diversity of yeasts from natural resources of Enggano Island. The yeasts were isolated from soil, sediment, leaf, leaf litter, fruit, and flower. Isolation was performed using direct plating, membrane filtration, ballistospore-falling and enrichment culture using glucose, xylose and xylan as carbon source. After isolating, yeasts were screened for its cellulolytic potency. The occurrence of yeasts in different isolation technique are clearly found. Most of 87 yeasts isolated, abundant in leaf, soil, and sediment sample. The total yeasts isolated were classified into 32 species based on D1/D2 LSU 26S rDNA sequences analysis which genera of Candida were predominant (33%). The predominant yeast species were identified as Candida tropicalis (16,1%), Cyberlindnera saturnus (16,1%), and Rhodosporidium paludigenum (11,5%). Screening on carboxymethyl cellulose medium, there are 43 isolates within 22 yeasts species have cellulolytic activity. Four species of Basidiomycetous have high activity which includes Pseudozyma antartica Y15Eg001; Pseudozyma hubeiensis Y15Eg015; Anthracocystis chrysopogonis Y15Eg072; Cryptococcus laurentii Y15Eg017 and two from Ascomycetous are Sarocladium bactrocephalum Y15Eg226, Y15Eg227. Some of cellulolytic yeast isolates are indicated as new species candidate and required to reconfirm in another conserve regions to ensure its taxonomic position. Various yeasts isolated from Enggano Island with its cellulolytic potency should contribute to scientific information regarding microbial genetic resources of outer islands of Indonesia.
MENYELAMATKAN CENDANA DENGAN PARADIGMA ATUR-DIRI-SENDIRI Otto Soemarwoto
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.v5i5.1446

Abstract

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POTENSIAL AIR PADA TURGOR LOSS POINT TUMBUHAN HUTAN GAMBUT DALAM KONDISI STRES GENANGAN DIKAWASAN SUNGAI SEBANGAU, KALIMANTAN TENGAH B. P Naiola
BERITA BIOLOGI Vol 5, No 3 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i3.1117

Abstract

Water is one of the main phenomenons dominating the life cycle of biodiversity components in tropical peat land area in Central Kalimantan. However, the exist of water is no longer as a determinant positive factor in the life of plants in that area; instead, water has became a factor creating other problems i.e. flooding stress. This report deals with study on the physiological aspects of tropical peat land plant species. Three species were used namely tumih (Combretocarpus rotundatus),belangeran (Shorea balangeran) dan ramin (Gonystylus bancatus).Employed Pressure-Volume Curve generated from Pressure Chamber, this study were concentrated on the water potential at turgor loss points(?total ??po)in flooding conditions. It is assumed that (?total  ??po)) is important in explaining the adaptation ability of these plants to flooding stress. Results shows that ( ?total ??po)in tumih was (-1,06 MPa), belangeran (-1,53 MPa) and ramin (-1,51 MPa) were not significant different between the three species; thus they had similar ability in responding to flooding stress. However, turgor pressure of these species were significantly different; thus the ratio of each MPa decrease of turgor pressure of each species against their own (?total  ??po)were different where tumih (0.73 MPa), balangeran (0,78 MPa) and ramin (0,81 MPa). It is suggested that tumih would reach early turgor loss point than the other two species due to its smaller turgor pressure.Comparisons of (?total ??po)among some tropical species were also presented. Due to the relationship between the three water potential components (total water potential, osmotic potential and turgor pressure),thus (?total ??po)maybe genetically controlled, thus it is worth to encourage for further study on this topic.
KOMPOSISI JENIS DAN POTENSI ANCAMAN TUMBUHAN ASING INVASIF DI TAMAN NASIONAL GUNUNG HALIMUN-SALAK, JAWA BARAT Sunaryo Sunaryo; Tahan Uji; Eka Fatmawati Tihurua
BERITA BIOLOGI Vol 11, No 2 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i2.493

Abstract

A study on species composition and threat potential of invasive plant species was conducted in the Gunung Halimun-Salak National Park,Cidahu Resort, West Java. We developed two plots of different altitudes. The result showed that there were four invasive alien species possessing potential threat to the ecosystem and native species in the National Park, i.e. Piper aduncum (Piperaceae, with an Important Value of 20,70); Calliandra calothyrsus (Mimosaceae, IV = 9,11), Austroeupatorium inulaefolium (Asteraceae, IV = 18,77), and Clidemia hirta (Melastomataceae) as shrub. The threats of invasive plants happen in open forest area and could occur from the residential or public places.
EVALUASI PERFORMA PERTUMBUHAN DAN HETEROSIS PERSILANGAN ANTARA IKAN NILA NIRWANA (OREOCHROMIS NILOTICUS) BETINA DENGAN IKAN NILA BIRU (OREOCHROMIS AUREUS) JANTAN F2 PADA KONDISI TAMBAK HIPERSALINITAS Adam Robisalmi; Bambang Gunadi; Priadi Setyawan
BERITA BIOLOGI Vol 19, No 1 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i1.3758

Abstract

Srikandi Tilapia is one of the superior hybridized varieties between black tilapia (Oreochromis niloticus) and blue tilapia (Oreochromis aureus). This fish has fast growth and high salinity tolerance. In its development, efforts are needed to improve and improve its genetic quality. Spawning srikandi tilapia using the parent of male blue tilapia F2 (family selection) is expected to improve performance better than the previous generation.The purpose of this study was to evaluate the growth performance and heterosis value of Srikandi tilapia produced from the extraction of female Nirwana strain tilapia with male blue tilapia F2. Hatchery activities were carried out in freshwater by mass spawning method on the 25 m2 pool. Enlargement activities were carried out at brackish water pond with salinity 25–40 g / L, using net measuring 3×5×1 m3 for 120 days. The stocking density used is 15 fishes / m2. The results of this study indicate that at the final test, the hybridization of Nw ♀x Au (F2)♂ has the best performance with the average of long gain16.60 ± 0.41cm, weight gain 215.33 ± 12.19 g and survival rate 78.50 ± 02.12. Evaluation of heterosis values on the characters of length, weight, survival, and biomass showed a positive value both on the hybridization of Nw ♀x Au (F2)♂ and Au (F2)♀x NW♂. The highest high parent heterosis value for blue tilapia broodstock is shown by population Nw ♀x Au (F2)♂ with values in each character of 6.96% (length), 26.06% (weight), 2.63% (survival), 28.57% (biomass). 
PIRAMIDA UMUR DAN PENGELOMPOKAN POPULASI IKAN BONTI-BONTI (Paratherina striata) SECARA SPASIAL DI DANAU TOWUTI, SULAWESI SELATAN Syahroma Husni Nasution
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i5.1912

Abstract

Bonti-bonti (Paratherina striata) is an endemiz and vulnerable fish in Lake Towuti and L. Mahalona. The fish population tend to decreasing due to intensive fishing and habitat quality decline. This study was aimed re reveal the age pyramids and the grouping of fish populations as a basis for describing condition and diversty of fish populations. The study was conducted in L.Towuti at five stations. Samples were collected using experimental gillnet with mesh sized ], ¾, 1, dan 1¼ inches. Meansurement of morphometric characters of  fish consist of 22 characters. Results shows that fish population at each station features a different age pyramid. at station inlent of L. Towuti and Loeha Island, the age pyramid type which is dominated by juveniles a reletively rapid population growth. At station Cape Bakara, outlet of lake Towuti and Beau, the age pyramid type tend to be mederate. This shows the fish population is dominated by medium-size, fish populations in stable condition. Obtained 12 characters that have a strong correlation values. ANCOVA test results showed no difference in morphometric characters between the stations in male and female. Based on ANCOVA test assumed that the Bonti-Bonti at fish station is a population group.  
STUDI BUDIDAYA JAMUR Lactarius sp. DI WAMENA, IRIAN JAYA HID Latupapua; YB Subowo
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.v4i4.1272

Abstract

Research on the cultivated of mushroom of Lactarius gp.had been conducted in Wamena,Jayawijaya district of Irian Jay a. There were 6 kinds of media which consisted of 2 kinds of sawdust wood (Nothofaeus sp.and Paraserianthes falcataria).Each sawdust wood added in 3 level of nutrition (0%, 50% and 100%).The experimental design which had been used was factorial which arranged with completely randomized design by using 10 replications.The result showed that the micellia had grown on all of media.However,the fruiting body formation occured on the media which made of P.falcataria sawdust added in 0%; 50% and 100% nutrition and on the Nothofagus sp sawdust added in 100% nutrition.The highest yield of fruiting body had been showed on P. falcataria sawdust medium added in 100% nutrition.

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