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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
 132   133   134   135   136 
EFEKTIFITAS METODA VAKSINASI FLEXIBACTER PADA BENIH IKAN KERAPU MACAN, Epinephelus fuscoguttatus DI HATCHERI Fris Johnny; Des Roza; Zafran Zafran
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.v13i2.695

Abstract

Vaccination is one of the approaches against infectious diseases in cultured marine fish. The purpose of this study was to evaluate the effectiveness of Flexibacter vaccine in juvenile of tiger grouper (Epinephelus fuscoguttatus). Nine hundred of tiger grouper with total length of 7-8 cm reared in nine concrete tanks. For each three tanks, fishes were vaccinated with injection, immersion, and without vaccination as control. Booster was delivered at 10 and 30 days after first vaccination. Challenge test with live Flexibacter bacteria was performed 90 days post vaccination. Observations were made on clinical symptoms and survival rates which presented in relative percentage survival(RPS).The experiments were performed in completely randomized design with three replicates. The data then analyzed with ANOVA. The results showed that the antibody titer values of vaccinated fish were higher then unvaccinated fish, namely 128 for injection, 64 for bathing and 4 for control. Survival rates of vaccinated fish following challenged test were higher than control and significantly different (P<0.05), i.e. 88.67% (with RPS of 60%) for injection and 83.33% (with RPS of 50%) for immersion and 66.67% for controls. It is suggested that Flexibacter vaccine administered through injection and bathing are effective to increase immunity of tiger grouper against Flexibacter infection
PENGARUH 2,4-D DAN BA TERHADAPINDUKSIKALUS EMBRIOGENIK PADA KULTUR MERISTEM JAHE {Zingiber officinale Rose.) Rama Riana Sitinjak; Otih Rostiana; Karyono Karyono; Titin Supriatun
BERITA BIOLOGI Vol 8, No 2 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i2.2037

Abstract

The aim of this study was to evaluate the effects of 2,4-dichlorophenoxyacetic acid (2,4-D) and N -benzyladenin (BA) to embryogenic callus induction of meristem culture in ginger {Zingiber officinale Rose). Completely Randomixed Design was applied using factorial pattern, replicated 3 times. Two factors were assigned i.e: 2,4-D (1.0, 2.0 and 3.0 mg/L) and BA (0.0, 1.0, 3.0 and 5.0 mg/L). Result showed that 2,4-D and BA significantly affected the embryogenic callus induction. The highest embryogenic callus (93.33%) was achieved on MS (Murashige & Skoog) containing combination of 1.0 mg/L 2,4-D and 3.0 mg/L BA, after 8weeks incubation.Histological evaluation informed that the incubation of embryogenic calli started from cortex cells adjacent the meristem vascular tissues.
PENGARUH KMnO4 TERHADAP SIFAT FISIK DAN KANDUNGAN KIMIA SELAMA PEMASAKAN BUAH PISANG AMBON G. PANGGABEAN; H. ROCHAENI; I. VIVANINGDIAH; P. CITROREKSOKO
BERITA BIOLOGI Vol 3, No 7 (1987): (Supplement)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i7.1371

Abstract

G. PANGGABEAN, H. ROCHAENI, I. VIVANINGDIAH & P. CITROREKSOKO. 1987. The effect of KM11O4 on physical and chemical consituents during the ripening of "pisang ambon" Suppl. Berita Biologi 3 : 11 - 16.The experiments were conducted in order to study the effect of potassium permanganate (KMnO) on the physical characteristic and biochemical constituents of the pisang Ambon at difference stage of maturity such as 70, 80 and 90 days. The concentrations of the KMnO4 were 0, 75, 100 and 125 ppm.The parameters of the physical characteristic were the colour,moisture content and the firmness of the fruits.While the biochemical constituents were the reducing sugar, caroten and the vitamin C content.The results of the treatment indicated that the colour, moisture content and firmness almost similar to the fruits as the control. The reducing sugar fruits of the age 70 days with the treatment of KMnO4 75 ppm was higher than that of the fruits of the age 80 and 90 days.However, all the fruits which were treated with KMnO4 had no affect on the caroten content.Meanwhile,the vitamin C content of the treated fruits were lower than that of the fruits without treatment.The pH of ripening fruits were not significantly difference between treated and untreated fruits.
SPECIES RICHNESS AND HABITAT PREFERENCES OF HERPETOFAUNA IN GUNUNG HALIMUN NATIONAL PARK, WEST JAVA [Kekayaan Jenis dan Preferensi Habitat Herpetofauna di Taman Nasional Gunung Halimun] Hellen Kurniati
BERITA BIOLOGI Vol 7, No 5 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i5.877

Abstract

Studi kekayaan jenis herpetofauna (amfibia dan reptilia) telah dilakukan di dalam dan sekitar Taman Nasional Gunung Halimun pada bulan September 2001-September 2002.Metode yang digunakan untuk mengetahui kekayaan jenis adalah dengan pengamatan langsung,penyinaran menggunakan Iampu senter, tangkap langsung dan perangkap lem pada semua habitat herpetofauna di sepuluh lokasi penelitian, yaitu Citalahab, Cibunar, Cianten, Cigadog, Gunung Wangun, Gunung Bedil, Gunung Botol, Legok Karang dan Cikeris.Dari kelompok amfibia didapatkan 25 jenis, sedangkan untuk reptilia 31 jenis; yang termasuk dalam lima suku kodok,empat suku reptilia kaki empat dan empat suku ular. Enam jenis endemik Jawa dijumpai, yaitu Leptophryne cruentata, Microhyla achatina, Huia masonii, Nyctixalus margaritifer, Philautus vittiger, Rhacophorus javanus dan Spenomorphus puncticentralis.Hasil dari penghitungan koefisien indeks kesamaan Jaccard memperlihatkan bahwa sepuluh lokasi survai terkelompok menjadi dua grup besar, yaitu grup hutan dan grup area terganggu.Tipe vegetasi, habitat dan ketinggian tempat merupakan faktor-faktor ekologi utama yang mempengaruhi penyebaran herpetofauna di Taman Nasional Gunung Halimun.
PERTUMBUHAN IKAN BANDENG (Chanos chanos) ANTARA BENIH HATCHERY SKALA RUMAH TANGGA DAN GENERASI KEDUA (G-2) TERSELEKSI Daniar Kusumawati; Zafran Jamaris; Titiek Aslianti
BERITA BIOLOGI Vol 17, No 1 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i1.2937

Abstract

Currently, there is a national concern regarding to the decrease of milkfish production from ponds in North Java due to a low quality of milkfish seed produced by small scale hatcheries in Bali, which is the main producer of milkfish seed. The quality of seed is strongly related to the quality of eggs (fertility), while quality of eggs produced depends on the management of brood stocks carried out by the hatcheries. Growth rate and growth hormone profiles are some of the biological aspects that could be used as a basis/benchmark to evaluate quality level of milkfish seed reared in ponds. The aim of this experiment was to evaluate growth rate and growth hormone profile performance between selected G-2 seed and small scale hatcheries seed as control population the growth rate. Research on grow-out of milkfish seed was conducted at the IMRAD ponds facility in Pejarakan, using milkfish seed produced by small scale hatcheries as well as selected second-generation (G-2) seed, each with the density of 5000 seed/pond (1 pond=0.5 ha). The seeds were fed with dry pellet and reared for 5 – 6 months. The results showed that the seed produced with standard operational procedure (SOP) by small scale hatcheries were having longer (F hit. = 13.68 > F tabel 1%) and heavier body washt (F hit. = 18.98 > F tabel 1%) better than selected G-2 seed and small scale hatcheries seed without SOP with high growth hormone concentration (F hit. = 4.95 > F tabel 5%).
Laporan sementara PengaruhTanamanObat2an Dari familia zingibiraceae terhadap fertilitas Lalat rumah Musca domesticai Leinr Mohamad Amir
BERITA BIOLOGI Vol 1, No 2 (1968)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v1i2.1529

Abstract

Naik turunnja populasi serangga pada waktu tertentu sangat tergantung kepada faktor2 kuntji (Key faktors) jang mampengaruhi perkembang-biakannja..Beberapa djalan untuk menekan djumlah populasi seragga ini sampai seketjil mungkin telah ditempuh, antara lain dengan tjara atirilisasi
IMPACTS OF DRY SEASON AND FOREST FIRE 1997-1998 EPISODES ON MIXED DIPTEROCARP FOREST AT BUKIT BANGKIRAI, EAST KALIMANTAN [Pengaruh Musim Kering dan Kebakaran Hutan Episode 1997-1998 Terhadap Hutan Dipterocarp Campuran di Bukit Bangkirai, Kalimantan Timur] Herwint Simbolon; Mustaid Siregar; Seiji Wakiyama; Naozumi Sukigara; Yasuhisa Abe; Hideyuki Shimizu
BERITA BIOLOGI Vol 6, No 6 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i6.1200

Abstract

Kawasan Kalimantan Timur mengalami musim kemarau panjang yang merangsang terjadinya kebakaran hutan yang luas pada 1982-1983 dan 1997-1998.Naskah ini mengemukakan hasil penelitian di Bukit Bangkirai, Kalimantan Tengah mengenai dampak dari kemarau panjang dan kebakaran hutan 1997-1998 terhadap diversitas tumbuhan pohon hutan dipterokarp campuran.Penelitian dilakukan dengan cara memperbandinkan hasil pencacahan tumbuhan pohon berlingkar batang setinggi dada lebih daripada 15cm yang terdapat dalam tiga petak penelitian, masing-masing: lha di hutan alam yang tidak terbakar (K-plot), 0,3 ha di hutan yang terbakar ringan (LD) dan lha di hutan yang terbakar berat (HD).Hasil penelitian menunjukkan bahwa musim kemarau panjang 1997-1998 menyebabkan 12,02% mortalitas individual pohon di hutan alam yang tidak terbakar, yang terlihat dari pohon mati berdiri tegak akibat kekeringan, atau kehilangan 21,67% dari total basal area. Secara keseluruhan terlihat bahwa kebakaran hutan menyebabkan kerusakan berat terhadap struktur dan komposisi hutan. Secara kumulatif, kemarau panjang dan kebakaran hutan menyebabkan mortalitas individual pohon berkisar 36-70% dan kehilangan total basal area antara 45-85% dan menyebabkan lantai hutan terbuka terhadap penyinaran matahari langsung karena menurunnya penutupan tajuk sebesar 23-79%.Kebakaran hutan juga berdampak terhadap penurunan biodiversitas tumbuhan pohon sebesar 23-79% pada tingkat jenis, 53-66% pada tingkat marga dan 18-21% pada tingkat suku.Tercatat perubahan komposisi jenis pada hutan yang terbakar; dominasi jenis Dipterocarpaceae dipetak hutan tak terbakar (K) menjadi dominasi pionir sekunder Macaranga gigantea-Vernonia arborea di petak terbakar berat (HD) dan dominasi Macaranga gigantea-Shorea smilhiana di petak terbakar ringan (LD).Beberapa jenis seperti Durio acutifolius dan Syzygium incarnaium mungkin dapat digolongkan sebagai jenis yang relative lebih tahan terhadap api.
PENELITIAN NYALI DI TAMAN NASIONAL GUNUNG GEDE PANGRANGO DAN TAMAN NASIONAL GUNUNG HALIMUN SALAK, JAWA BARAT, INDONESIA Erlin Rachman; Eka Fatmawati Tihurua; Sunaryo Sunaryo
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i1.652

Abstract

Research on gall (including field and laboratory observations and field collecting) have been conducted in the Mounts Gede Pangrano (MGPNP) and Halimun Salak National Parks (MHSNP). This research focused on gall shapes, host plant species, and parts of the host plants infected by galls. The result showed that there were 169 gall numbers in MGNP and 127 numbers in MHSNP have been collected. Distribution of plant species infected by the galls were rather same in the both conservation areas. In MHSNP seven families mostly infected by galls: Araceae, 4 species of 5 gall numbers collection in the family (=4/5), Elaeocarpaceae (5/5), Euphorbiaceae (7/9), Lauraceae (8/11), Moraceae (6/7), Melastomataceae (4/4) and Rubiaceae (9/12). In MGPNP the composition is only fairly different: Araliaceae (4/6),Euphorbiaceae (8/13), Lauraceae (9/12), Melastomataceae (5/6), Moraceae (13/22), Myrtaceae (9/11) and Rubiaceae (6/13). At least 23 gall shapes were found in both locations. The most common shape of galls found in MGNP was irregular, while in MHSNP was globular.Galls were mostly (90%) collected from leaf including peduncles and leaf venations. The other parts included twigs, branches, stems, flowers,and fruits. The most common insect found investing galls (i.e. insect gallers) was the midges (54.4%) followed by mites (18.5%), psyllids (11.1%), thrips (6.3%), coccids (1.9%), and aleurodes (1.9%).
STRUKTUR DAN KEKAYAAN JENIS TUMBUHAN MANGROVE PASCA-TSUNAMI DI PULAU NIAS Onrizal Onrizal; Cecep Kusmana
BERITA BIOLOGI Vol 9, No 4 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i4.2005

Abstract

Mangroves is an essential natural resources and vital component tor coastal areas both ecology and socio-economic.Adapted mangrove vegetation on tsunami disaster is important information for mangrove rehabilitation post-tsunami.The aim of the research was to determine the structure and species richness of mangrove vegetation post-tsunami in Aceh and Nias Island by vegetation analyses and inventory methods, field survey was carried out in March 2005 - three months after tsunami disaster.We found 20 adapted mangrove species post-tsunami in Nias island, dominated by Rhizophora apiculata. Land system of KJP was compound of 17 adapted mangrove species, and land system of PTG and KHY were each compound of 7 adapted mangrove species, Based on our research, we recommended that R. apiculaw is the first priority species to be used for mangrove rehabilitation in Nias island.
ANATOMI DAUN DAN STATUS KEDUDUKAN TAKSONOMI LUISIA LATIPETALA DIAH SULISTIARINI
BERITA BIOLOGI Vol 3, No 4 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i4.1339

Abstract

DIAH SULlSTIARINI. 1986, Leaf anatomy and the taxonomy status of Luisia latipetala. Berita Biologi 3(4) : 143 - 145.- In the recent publications, Luisia latipetala J. J. S. has always been considered as a synonym of L. zollingeri Reichenb. f. Based on an investigation of the leaf anatomy of 12 herbarium specimens (position, frequency and size of the stomata, guard cell and epidermis arrangement, sclereid distribution and cutin layer countour) it is concluded that the two species should be regarded as separate species.

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