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INDONESIA
JURNAL BIOLOGI INDONESIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 847 Documents
 56   57   58   59   60 
EFEKTIVITAS SPIRULINA SEBAGAI IMMUNOSTILULAN PADA IKAN PATIN JAMBAL (PANGASIUS DJAMBAL) Simanjuntak, Sorta Basar Ida; Wirawidjaja, Achmad Maad; Dana, Darnas; Supriyadi, Hambali
JURNAL BIOLOGI INDONESIA Vol 3, No 3 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i3.3471

Abstract

ABSTRACTEffectivity of Immunostimulant Spirulina to Jambal Catfish (Pangasius djambal). Four kinds of diet with difference doses of Spirulina (0 gr.kg-1 diet; 2 gr.kg-1 diet; 4 gr.kg-1 diet and 6 gr.kg-1 diet) is experimented to jambal catfish (Pangasius djambal Bleeker). The aim of research to observed histology limphoid organs. This research is done during 28 days and challenged by intraperitoneal with Aeromonas hydrophila, one of pathogen bacteria on the 29th. The lymphoid organs of fish as taken every weeks to observed histology until the 42nd. The result showed that difference doses of Spirulina influence the histology of lymphoid organs jambal catfish. The dose of Spirulina 4 gr.kg-1 diet is effective to increase the immunity of jambal catfish bodies.Key Words : Spirulina, immunostimulant, lymphoid organ, Aeromonas hydrophila, jambal catfish
PRODUKTIVITAS KLON KATUK (SAUROPUS ANDROGYNUS (L.) MERR.) TRIPLOID PADA BERBAGAI KOMBINASI PERLAKUAN PEMUPUKAN DAN WAKTU PEMANGKASAN Juhaeti, Titi; Lestari, P.; Utami, N W
JURNAL BIOLOGI INDONESIA Vol 11, No 1 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v11i1.2158

Abstract

Ease of access, affordability and continuity of katuk production is important to support a variety of supplements industry-katuk based being developed at this time. The problem is the existing clones and its cultivation technique has not been able to fulfil the market needs. Therefore clone assembling was done to produce triploid katuk with larger leaves size. In this paper we put forward the research on the fertilization and pruning time that appropriate to support the leaf production of triploid katuk. The study was carried out at the experimental plot in Botany Division of Research Center for Biology-LIPI. The experimental designs was Nested RCBD Design, the main plot were 2 level of pruning time (P1: 3 Weeks After First Pruning (MSPP) and P2: 5 MSPP). The subplots were fertilization (K: Control, B: Beyonic, B ¼: Beyonic + NPK¼, B ½:  Beyonic+ ½ dose NPK and NPK: NPK without Beyonic). The growth parameters observed were plant height, number of leaves, the leaf size, were done every week until 8 weeks after planting (WAP). The first pruning to harvest shoots were done at 8 WAP, and the next pruning were done according pruning time treatment i.e. P1 and P2. The pruning was done 3 times. The variables observed at pruning time were shoot length, number of leaves, leaf size, the pruned fresh weight and the fresh weight of edible parts. The result indicated that the triploid katuk clones showed a good response to fertilization both growth and leaf production. The biofertilizers can be combined with the use of inorganic fertilizers to increase edible part of pruning harvest production. Keywords: pruning time, bioorganic fertilizer, triploid katuk, pruning harvest production 
FOREST CONDITION ANALYSIS BASED ON FOREST CANOPY CLOSUREWITH REMOTE SENSING APPROACH Primajati,, Mahendra; Harto, Agung Budi; Sulistyawati, Endah
JURNAL BIOLOGI INDONESIA Vol 7, No 1 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i1.3124

Abstract

ABSTRAKAnalisis Kondisi Hutan Berdasarkan Tutupan Kanopi Menggunakan Pendekatan RemoteSensing. Pengurangan luasan hutan masih menjadi problem di Indonesia teristimewa untukPulau Jawa dengan kondisi populasi penduduk yang terpandat. Untuk mengetahui seberapajauh perubahan kawasan Gunung Papandayan terhadap fungsi bentang ekologinya makadicoba analisis satelit SPOT 2 tahun 2008 dengan standart koreksi pada level 2A. Prosesingdata satelit dilaksanakan dengan melakukan pengukuran awal meliputi radiometri, geometri,dan koreksi topografi untuk memisahkan bentuk bentang penggunaan berupa hutan dan ataulainnya. Penutupan kanopi dicatat menggunakan foto digital dan dianalisis menggunakanperangkat lunak RGBFisheye. Hasil penelitian dapat ditunjukkan bahwa kawasan Papandayanterdiri dari kawasan hutan terbuka (10-40%), semi tertutup (40-70%) dan tertutup (>70%). Hasilanalisis juga dapat dihitung seluas 16,846 ha. Sebagian hutan merupakan hutan semi terbuka(49,38% atau 8983 ha) yang terdiri dari 3604 tapak sedangkan hutan terbuka terdiri dari 15,07%(2741 ha) dan tersusun 16450 tapak.Kata kunci: Kondisi hutan, tutpan kanopi, photograph, Gunung Papandayan.
DAYA ANTI S(NPLRY1OCOCCUS AUREUS DARI FERMENTASI DAUN BEBERAPA JENIS TUMBUHAN OBAT Kasim, Erniwati; Yulinery, T.; Hardiningsih, R.; Triana, E.; Napitupulu, R.N.R.
JURNAL BIOLOGI INDONESIA Vol 3, No 9 (2005): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i9.3283

Abstract

ABSTRACTAnti Staphylococcus aureus of the Fermented Leaves of Several Medicinal Plants. Thisresearch tried to enhance the antimicrobial activity especially against Staphylococcus aureusby fermenting the leaves with Acetobacter-Saccharomyces. The result showed that thesuspension of the leaves of Psidium guajava, Hibiscus rosasinensis, Daucus carota, Morindacitrifolia, Pyrus malus, Apium graviolens and Piper betle could inhi bit the growth of S.aureus,wh i le Persea gratissima, Amaranthus caudatus and Nothopanax scutellaria did not.Keywords : Staphylococcus aureus, medicinal plants, antimicrobial
ANNONACEAE DARI WAWONII, SULAWESI TENGGARA ANNONACEAE FROM WAWONII ISLAND, SOUTH EAST SULAWESI Rugayah, Rugayah
JURNAL BIOLOGI INDONESIA Vol 10, No 1 (2014): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i1.330

Abstract

Wawonii Island is one of small islands located in the southeast of Sulawesi, with an area of approximately 6500km2. Exploration activities and inventories have been conducted in the year 2003-2006, more than 900 plantspecies have been identified, including fern and cultivated plants. Annonaceae included one of the families foundin this area. Ten species were listed belongs to 8 genera, namely Anaxagorea (A. cf. luzonensis A. Gray), Annona (A.muricata L., A.squamosa L.), Artabotrys (A. suaveolens (Blume) Blume), Cananga (C.odorata (Lam .) Hook.f.,&Thomson), Monoon (Monoon sp.), Polyalthia (P. celebica Miq.), Pseuduvaria (P. reticulata (Blume) Miq. andUvaria (U. littoralis (Blume) Blume, Uvaria sp.). One species of its Pseuduvaria reticulata as a new record forSulawesi. Identification keys to the genera, and its distribution will be discussed in the paper.Keywords: Annonaceae, Wawonii island, S.E. Sulawesi
IMPACT OF INVASIVE ANT SPECIES IN SHAPING ANT COMMUNITY STRUCTURE ON SMALL ISLANDS IN INDONESIA Rizali, Akhmad; Rahim, Abdul; Sahari, Bandung; Prasetyo, Lilik Budi; Buchori, Damayanti
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3083

Abstract

Dampak Invasiv Species Semut pada Pembentukan Struktur Komunitas Semut di Kawasan Pulau-Pulau Kecil di Indonesia. Peneletian tentang pengaruh spesies invasif di kawasan pulau-pulau kecil menjadi perhatian konservasi yang sangat penting,teristimewa pengaruhnya terhadap fauna lokal dan teristimewa untuk semut-semut endemik yang menjadi kajian pada penelitian ini. Pada kajian ini penelitian dilakukan di tiga pulau yaitu Pulau Bokor, Rambut dan Untung Jawa. Semut diambil menggunakan metode pitfall trap. Metode penghitungan dengan model korelasi dan linier digunakan untuk mengukur penyebarannya secara acak di setiap pulau. Diperoleh tiga species invasif dua diantaranya yaitu Solenopsis geminata dan Paratrechina longicornis dapat dijumpai di ketiga pulau tersebut sedangkan untuk Anoplolepis gracilipes hanya dijumpai di Pulau Rambut. A. gracilipes dan S. geminata merupakan spesies yang melimpah dan komposisi keterdapatannya berkorelasi dengan faktor habitat (F2, 52 = 19.469, p<0.001).Kata kunci: Semut, keragaman jenis, spesies invasif
NEMATODES OF OTUS LEMPIJI (HORSFIELD, 1821) AND GONOCEPHALUS KUHLII FROM CIREMAI MOUNTAIN, WEST JAWA Dewi, Kartika; Purwaningsih, Endang; Riyanto, Awal
JURNAL BIOLOGI INDONESIA Vol 4, No 5 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i5.3224

Abstract

TULISAN PENDEKNematodes of Otus lempiji (Horsfield, 1821) and Gonocephalus kuhliiFrom Ciremai Mountain, West Jawa
DEFORESTATION AND IT IS IMPLICATIONS FOR SUMATRAN TIGERS IN BUKIT BARISAN SELATAN NATIONAL PARK, SUMATRA Suyadi, Suyadi; Jaya, I Nengah Surati; Wijanarto, Antonius B.; Wibisono, Haryo Tabah
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i1.148

Abstract

Taman Nasional Bukit Barisan Selatan (TNBBS) memiliki ekosistem yang lengkap mulai dari hutan dataran rendahtermasuk hutan mangrove hingga hutan dataran tinggi. Taman nasional ini teridentifikasi sebagai area konservasiprioritas utama untuk harimau sumatra (Tiger Conservation Unit 1). Akan tetapi, banyak tutupan hutan yang digunduli (deforestasi). Deforestasi bukan hanya menjadi ancaman besar bagi kelestarian hutan tetapi juga terhadappopulasi harimau sumatra. Penelitian ini menghubungkan data citra satelit Landsat dengan data survei harimaumenggunakan kamera otomatis (camera traps) untuk mengetahui pola deforestasi, populasi harimau, dan implikasideforestasi terhadap populasi harimau. Hasil penelitian menunjukan sekitar 27% tutupan hutan di TNBBS telahhilang. Rata-rata laju deforestasi dalam satu dasawarsa terakhir (1998 - 2006) sebesar 18,76 km2/tahun. Jumlahharimau menurun dari 57 individu pada tahun 1998 menjadi 22 individu di tahun 2006, dan kepadatan populasinyajuga menurun dari 2,25 individu/100km2 menjadi 1.16 individu/100km2. Harimau di TNBBS memilikihabitat yang bervariasi mulai dari hutan dataran rendah termasuk mangrove ikutan hingga dataran tinggi.Kata Kunci: Deforestasi, Mangrove, Camera Trap, Citra Satelit, Harimau Sumatra, Taman Nasional Bukit BarisanSelatan
PENGARUH STRUKTUR DAN KOMPOSISI VEGETASI DALAM MENENTUKAN NILAI KONSERVASI KAWASAN REHABILITASI DI HUTAN WANAGAMA I DAN SEKITARNYA Purnomo, Danang Wahyu; Usmadi, Didi
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i2.3048

Abstract

The Effectof Vegetation Structure and Composition in Determining the Conservation Value of Rehabilitation Area in the Wanagama I Forest and Surroundings. Wanagama I Forest has many types of land use that distinguished by a combination of agroforestry systems. The aim of the research is to determine the conservation value based on the bird diversity in each of the land use types and to understand the effect of vegetation structure and composition on bird diversity. The conservation value was measured using two factors, namely diversity index (H?) and conservation value index (CVI). Bird diversity was estimated using point counts method,while vegetation structure and composition was observed using systematic nested sampling. The highest H? and CVI were found at the old growth forest (H?= 2.328, CVI = 2.556) while thelowest were detected at the bush (H? = 1.607, CVI = 1.941). Rehabilitation effort significantly increased bird diversity. In accordance, vegetation structure and composition i.e. cover density,the number of species, dominance, and canopy strata, significantly affected the bird diversity (F = 2.979, P = 0.005). However, canopy strata (B = 0.20, P = 0.001) and density of vegetation atsapling level (B = 0.12, P = 0.036) were the most significant factors. Dominant species such as Gliricidea sepium and Tectona grandis were causative factors that attracted the olive-backedsunbird (Nectarinia jugularis) and insectivorous (Pycnonotus aurigaster and Orthotomus sepium).Keywords: Conservation index, diversity index, density, dominance, composition and structure, Wanagama I Forest
KAJIAN AWAL FUNGSI GUNUNG CIREMAI SEBAGAI HABITAT PENTING BAGI ‘BUMBLEBEE’, BOMBUS RUFIPES LEPELETIER 1836 (HYMENOPTERA: APIDAE) Kahono, Sih
JURNAL BIOLOGI INDONESIA Vol 5, No 3 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i3.3191

Abstract

TULISAN PENDEKKajian Awal Fungsi Gunung Ciremai Sebagai Habitat Penting Bagi?Bumblebee?, Bombus rufipes Lepeletier 1836 (Hymenoptera: Apidae)

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