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BERITA BIOLOGI
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Articles 2,125 Documents
ANALISA BEBERAPA SIFAT FISIKA KIMIA AIR TERHADAP ADANYA BLOOMING MICROCYSTIS AERUGINOSA KUTZ. DI BAGIAN TENGAH WADUK JATILUHUR KABINAWA, I NJOMAN K.
BERITA BIOLOGI Vol 3, No 7 (1987)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.42 KB) | DOI: 10.14203/beritabiologi.v3i7.1317

Abstract

I NJOMAN K.KABINAWA 1987.Analysis of some physical-chemical factors affecting the blooming of Microcystis aeruginosa Kutz. in the central part of the man made lake Jatiluhur. Berita Biologi 3(7) : 321 -325. An investigation on some physicai-chemical factors which may affect the occurence of blooming Microcystis aeruginosa Kutz.was conducted in the central part of the man made lake Jatiluhur from April to June 1981. Observation was carried out in the morning (07.30 -09.00) and in the afternoon (12.30 - 14.00) in the interval three a week. The investigation,included physical-chemical properties of the water,a quantitative and volumetric assessment of the Microcystis colonies.The water of this man made lake is considered relatively suitable for the growth of many aquatic organisms.At the commence of the blooming of the algae the oxygen, calcium, phosphate and nitrate content tend to increase, and so the water temperature.During the blooming of the Microcystis the number of colonies 39,585 and 35,685 per litre was achieved, while the volume was about 0.32 - 0.34 ml per litre.
KEMAMPUAN MEROMBAK KARBOHIDRAT, PROTEIN DAN LEMAK JASAD RENIK YANG BERASAL DARI KECAP ELIDAR, ELIDAR; SASTRAATMADJA, DUDI D.; SAONO, S.; BROTONEGORO, S.
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 | Full PDF (155.257 KB) | 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.
KERAGAMAN SUARA KODOK PURU BESAR {Phrynoidis aspera (Gravenhorst, 1829)} ASAL JAWA BARAT Kurniati, Hellen
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 | Full PDF (1420.683 KB) | DOI: 10.14203/beritabiologi.v12i1.517

Abstract

Giant River Toad {Phrynoidis aspera (Gravenhorst, 1829)} is a largest generalist toad that is able to adapt to a variety of habitats and elevations. The complete calls of Giant River Toad had not been published before. To know all of sound characters of the toad, a total of five individuals males P. aspera vocalization were recorded on 30 October 2010 (1 individual; air temperature: 23.1°C; water temperature: 18.1°C) by using an Audio Technica AT875R microphone, the sound was recorded on a Fostex FR 2LE in WAV format; and on 22-24 September 2011 (4 individuals; air temperature 21.0°C-23.4°C; water temperature 21.6°C-22.0°C) in Curug Nangka, Mount Salak foot hill,West Java by using PCM-M10 Sony Recorder. The toad has four types of call: (1) Call type 1, consists of impulses without harmonic and average band width is 317.44 Hertz and average of amplitude is 40.43; (2) Call type 2, consists of pure tone with many sub-harmonics, average range frequency is 1420.28 Hertz and average of amplitude is 42.67; (3) Call type 3, consists of impulses and pure tone with two weak harmonics and average band width is 373.81 Hertz and average of amplitude is 48.19; (4) Call type 4, consists of impulses without harmonic and average band width is 792.62 Hertz and average of amplitude is 51.01. Based on the number of calls that were recorded of five individuals from the Mount Salak foot hill, call type 4 is its major call (common advertisement call), but the three others call types are minor calls.
ANALISA ASAM ORGANIK DAN ASAM AMINO PADA NATTO YANG DIFERMENTASI OLEH 7 STRAIN BACILLUS NATTO Joko Sulistyo; SULISTYO, JOKO
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 | Full PDF (303.539 KB) | DOI: 10.14203/beritabiologi.v3i6.1326

Abstract

JOKO SUUSTYO. 1986. Analysis of organic acid and amino acid in natto fermented by 7 strains of Bacillus natto. Berita Biologi 3 (6): 277 - 282. The ability of seven strains of Bacillus natto produced a number of organic and amino acid components in natto were investigated. Raw, submerced and autoclaved soybeans for natto contained 1.15% 0.46% and 0.77% in organic acid and 0.19%, 0.30% and 0.30% in amino acid, while after fermentation those range were 0.36 - 0.90% in organic acid and 2.86 -6.08% in amino add. During submercing, autoclaving and fermenting, citric acid component decreased down very sharply to about one hundredth of starting level. While acetic,iso-butiric and iso-valeric components increased up to 84.92%, 96.60% and 95.87%, respectively. Mean while, glutamic acid, iso-leucine,leucine andphenylalanine components of amino acid increased up to 84.36%, 90.52%, 91.67% and 95.88%, respecti
PERANAN BEBERAPA SERANGGA PENGUNJUNG PERBUNGAAN PADA PENYERBUKAN COLOCASIA ESCULENTA VAR. ESCULENTA DAN C. GIGANTEA KRAMADIBRATA, KARTINI; HAMBALI, G.G.
BERITA BIOLOGI Vol 2, No 7 (1983)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.031 KB) | DOI: 10.14203/beritabiologi.v2i7.1409

Abstract

Jenis talas Colocasia esculenta (L.) Schott di Jawa mempunyai dua varietas botani yaitu C.esculenta var. esculenta yang umumnya tumbuh di dataian rendah dan C. esculenta var. antiquorum (Schott) Hubbard & Rehdei yang tumbuh liar di tepi-tepi sungai lereng pegunungan. Jenis lainnya yaitu C. gigantea (Bl.) Hook. f. (talas padang, sontrang) biasa tumbuh liar di hutan jati dan tawa. Perbungaan talas-talas budidaya jarang dihasilkan sehingga penanaman daii biji tidak lazim dilakukan dan perbanyakan tanaman lebih dikenal dengan anakan. Kaiena itu penelitian yang menyangkut biologi pembungaan dan penyerbukan kedua jenis Colocasia tersebut sampai saat ini sedikit sekali yang telah dilapoikan.
NEW RECORD OF EURYCOMA APICULATA A.W. BENN (SIMAROUBACEAE) FROM FOREST RESERVE OF KENEGERIAN RUMBIO, RIAU, INDONESIA Zulfahmi, Zulfahmi; Aryanti, Ervina; Rosmaina, Rosmaina
BERITA BIOLOGI Vol 18, No 3 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i3.3683

Abstract

During extensive field surveys in the 2015 year, Eurycoma apiculata A.W. Benn has been found for the first time in the forest reserve of Kenegerian Rumbio, Kampar District of Riau province. This finding is a new record of the medicinal plant in Indonesia. The taxonomic description and photographs of the species are given in this article.  
EKOLOGI MAKAN IKAN GLYPTOTHORAX MAJOR (BLGR) (BAGARIDAE, SILURIFORMES) DI SUNGAI ALAS, ACEH TENGGARA RACHMATIKA, IKE; WIRJOATMODJO, SOETIKNO
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 | Full PDF (166.586 KB) | DOI: 10.14203/beritabiologi.v3i8.1308

Abstract

IKE RACHMATIKA & SOETIKNO WIRJOATMODJO.1988.Feeding ecology of Glyptothorax major Blgr) (Bagaridae, Silurifoimes) in the Ala River,South East Aceh. Berita Biologi. 3(8): 396 399.A study on the feeding ecology of Glyptothorax major (Blgr) was conducted in the Alas River South East Aceh, Sumatra during early dry season, January 1983.Index of Preponderance analysis showed that this species is a benthic-insect feeder It was found that the food habit of immature and mature fish is slightly different.The mature fish's food habit is more varied than the immature's. Based on the concept of the "availability factor"of prey species,a tendency was also found that the mature fish is a more opportunistic of using food resources than the immature's.The supposed mechanisme of this difference and its relation with condition factor values is discussed.
PERBANDINGAN MORFOLOGI GENITALIA BEBERAPA JENIS LALAT DACUS ANGGARWULAN, ENDANG; ADISOEMARTO, SOENARTONO
BERITA BIOLOGI Vol 2, No 2 (1977)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.566 KB) | DOI: 10.14203/beritabiologi.v2i2.1391

Abstract

Salah satu hama yang menyebabkan penurunan mutu buah-buahan adalah jenis-jenis lalat Dacus. Larva lalat ini umumnya hidup pada bagian tumbuhan yang mempunyai daging lunak, teiutama buah. Larva berasal dari telur yang diletakkan oleh induknya pada permukaan buah dan yang kemudian membor lebih ke dalam ±2- 4 mm (Metcalf & Flint 1962). Selain merusak warna buah, larva Dacus juga mengeluarkan semacam zat yang dapat mengubah susunan jaringan daging buah hingga berwarna lebih tua.lembek dan berasa pahit.Karena kerusakan yang ditimbulkannya, usah memberantas Dacus telah dilakukan dengan berbagai cara, antara lain dengan bahan kimia, dengan pembajakan atau penggenangan di sekitai tanaman (karena pupa Dacus memerlukan tanah untuk perkembangannya),atau dengan pemberantasan secara biologi dengan menggunakan parasit larva Dacus seperti Opius fletcheri (Baltazar 1966) yang terdapat juga di Jawa.Penggunaan metode pemandulan jantan dalam pengendalian populasi Dacus mungkin dapat dipertimbangkan (Lindquist 1969).Salah satu segi yang dianggap sebagai penentu keberhasilan pemandulan jantan ialah cukupnya pengetahuan mengenai bentuk dan struktur luar genitalia lalat ini.Karena itu telah dilakukan penelitian perbandingan yang meliputi morfologi edeagus,testis dan surstilus pada yang jantan serta morfologi ovipositor, indung telur dan spermateka pada yang betina.
FAUNA IKAN DI SUNGAI CIKANIKI, TAMAN NASIONAL GUNUNG HALIMUN Fish Fauna in Cikanini River, Mount Halimun National Park Rachmatika, Ike
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.v4i4.1275

Abstract

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KOMPONEN HAYATI YANG SERING DIJUMPAI DI PEKARANGAN KASUS TELUKNAGA, CITEUREUP DAN PACET SASTRAPRADJA, D.S.; IMELDA, M.; ADISOEMARTO, S.
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 | Full PDF (811.446 KB) | DOI: 10.14203/beritabiologi.v3i2.1359

Abstract

D.S. SASTRAPRADJA, M. IMELDA & S. ADISOEMARTO.1985. Biological components frequently encountered in the kitchen gardens : thein Teluk Naga, Citeureup and Pacet.Berita Biologi 3 (2) : 25 - 36. Based on the grouping into ornamental plants, fruit trees, vegetables, medicinal plants, industrial plants and tu'oer crops, the vegetation of kitchen gardens showed uniform peicentage in the three study localities.The highest was occupied by ornamental plants, followed by lruit trees and vegetables, then industrial and medicinal plants, while the least was tuber crops.However, the three localities showed variations in frequency classes of each plant group, whilst in total, these frequency classes were uniform. Animal comiponents in the kitchen gardens were represented by variaous numbers of species in the three localities.In any case, chickens were the dominant group of animals, These birds were raised traditionally in most cases.Of the decomposing insects, each of the three localities showed their specificities. The coastal area was dominated by underground beetles, the interior low land by termites and the higher altitude by dung beetles. Different compositions were showed also by the insect pest groups.

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