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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 16 Documents
 1   2 
Search results for , issue "Vol. 18 No. 2 (2018): Juli - Desember" : 16 Documents clear
DISTRIBUTION AND SURVIVAL OF MEGAPODIUS REINWARDT FOR ECOTOURISM CONTRIBUTING ON MOYO ISLAND Muhammad Yamin; Khairuddin Khairuddin
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (564.469 KB) | DOI: 10.29303/jbt.v18i2.931

Abstract

Abstract: Megapodius reinwardt is one of the protected bird species in Indonesia. The protection toward megapodius reinwardt because of limited distribution, high economic value, has an important ecological role, has a unique, difficult breeding in captivity, the population is drastically shrinking and getting scarce.Based on this condition, the purpose of this research is to know population distribution mapping, active nest study, disturber population in order to support the atraction tourism and conservation of Megapodius reinwardt at Moyo island. Survey and observation are used to collect research data. The distributionofMegapodius reinwardt is spread around Moyo Island. The nest is located in the forest and it build by heap of soil with high 150 centimeters until 175 centimeters and diameters up to 825 cm. The location of Megapodius reinwardtnests are mostly in secundary forest than primary forest and savana at 25 m above sea level. The r-product moment correlation coefficient (r = 0,484) conclude that, Varanus sp, Sus barbatus, Prinodon linsang, Haliastur indus, Microhierax fringillarius, and human as predators are not significant to influence the nests and population of Megapodius reinwardtdecrease. So the existence of Megapodius reinwardtmanagement is needed according to in-situ cencervation on Moyo Island forEcotourism Contributing Keywords:   Ecotourism, distribution, Megapodius, survival.
PERTUMBUHAN RUMPUT LAUT KAPPAPHYCUS ALVAREZII HASIL KULTUR JARINGAN Nunik Cokrowati; Andy Arjuni; Rusman Rusman
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.075 KB) | DOI: 10.29303/jbt.v18i2.740

Abstract

         The purpose of this study is to determine the right planting point and seed weight to produce optimal growth Kappaphycus alvarezii. Seaweed cultivation method used is bottom off method and seed used is tissue culture seaweed. This research was conducted from February to April 2016 at Nambung beach, Sekotong Subdistrict, West Lombok regency, West Nusa Tenggara Province. This research used experimental method in field with experimental design that used is Factorial Random Design (Factorial RAL). Treatment consists of 2 factors, where the first factor is 3 different planting point (10 meters from coastline, 20 meter from coastline and 30 meters from the coastline) and the second factor is the weight of different seeds (1.5 gram and 50 gram seed weight). The results showed that the planting position of seaweed and the weight of the seeds used gave effect to absolute growth. The interaction between planting position and seed weight also gives Kappaphycus alvarezii a significantly different growth. The conclusion of this research is the use of planting point and seed weight give interaction to each other.Keywords: growth, tissue culture, bottom off method, weight, cultivated
CONSORTIUM OF WALLACEAN MICROALGAE IN WEST NUSA TENGGARA FOR BIODIESEL PRODUCTION Suripto Suripto; Lalu Japa
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.305 KB) | DOI: 10.29303/jbt.v18i2.881

Abstract

Abstract : This study aims to explore the species richness of biodiesel-producing microalgae in the waters of West Nusa Tenggara to develop renewable energy source, environmentally friendly, and not compete in land use with the agricultural sector. Microalga  samples were collected from various waters in West Nusa Tenggara Province using the concentration method. Species determination   and data analysis of microalgae was carried out at the Biology Laboratory, University of Mataram to calculate the abundance of each species. The dominant species of biodiesel-producing microalgae were isolated and cultured by a closed culture system method. The oil content of the microalgae biomass produced was extracted by  a liquid-liquid extraction method using n-hexane as a solvent. The results show that of the 49 species of marine microalgae identified in the waters of West Nusa Tenggara, there are 12 species of microalgae which are biodiesel producers. Of the 30 freshwater microalga species, only 8 species of microalgae are producers of biodiesel. The microalgae community of marine waters of West Nusa Tenggara is dominated by Bacteriastrumdelicatulum, B. variance, Chaetocerosaffinis, C. liciniosum, C. lorenzianum, Gyrosigma sp., Oscillatoria sp., Pseudonitzschia spp., and Thalassionemanitzschicoides, while freshwater microalgae communities are dominated by Microcystis aeruginosa, M. incerta, Nostoc sp., Pediastrumboryanum, and Staurastumcristatum. The dominant types of biodiesel-producing microalgae isolated and cultured are Chaetocerosamini, Nannochloropsisoculata and Nitzschia spp. Each cell density of C. amini, N. oculata, and Nitzschiaspp in culture 7 days after isolation was 3,600,960,000,  4,375,360,000, and  3,368,640,000 cells / liter respectively  with oil content 34, 68, and 46%. Key words: biodiesel, microalgae, Wallacea, West Nusa Tenggara
UJI TOKSISITAS ESCHERICHIA COLI ASAL DAGING TERHADAP SEL VERO Widodo Suwito; Andriani Andriani
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.945 KB) | DOI: 10.29303/jbt.v18i2.795

Abstract

Abstract: Verotoxigenic Escherichia coli (VTEC) is responsible for serious human illnesses. Source of VTEC is cattle faeces which beef contamination. The aims of this study was to determine the ability of E. coli which beef contamination from traditional market to damage the vero cells monolayer. A total of 35 E. coli isolates and vero cells monolayer were used in these study. All isolates E. coli were re-indentified with biochemistry and vero cells monolayer were uesed to determination verotoxigenecity tests. None of E. coli isolates showed damage the vero cells monolayer, so there are not verotoxigenik E. coli. The study showed that all isolate E. coli which beef contamination from tradiotional market none damage the vero cells, so there are not verotoxigenic. Key words: E.coli, beef, vero cell Abstrak: Escherichia coli verotoksigenik (VTEC) menyebabkan penyakit pada manusia. Sumber VTEC adalah feses sapi yang dapat mengkontaminasi daging. Tujuan penelitian ini adalah mengetahui kemampuan E. coli yang diisolasi dari daging sapi di pasar tradisional dalam merusak sel vero monolayer. Sebanyak 35 isolat E. coli dan sel vero monolayer digunakan dalam penelitian ini. Isolat E. coli di identifikasi ulang secara biokimia dan untuk menentukan sifat verotoksigenesitasnya menggunakan sel vero monolayer. Semua isolat E. coli tidak bersifat verotoksigenik karena tidak mampu merusak sel vero. Penelitian ini menunjukkan bahwa E. coli yang mengkontaminasi daging sapi dari pasar tradisional tidak bersifat verotoksigenik.  Kata kunci: E.coli, daging, sel vero. 
KARAKTERISASI MORFOLOGI TANAMAN PISANG DI DAERAH LOMBOK Rina Kurnianingsih; Mursal Ghazali; Sri Puji Astuti
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.096 KB) | DOI: 10.29303/jbt.v18i2.790

Abstract

Abstract:The aim of this research is to identify cultivars of bananas are cultivated in the Lombok based on morphological characterization (pseudostem, leaves, and flowers). This research was explorative by identifying directly into the field of cultivated banana cultivars. There are 19 cultivars of banana plants cultivated in Lombok. There are variations in the morphological characteristics of the pseudostem, leaves, and flowers, except on petiole margins, male bract shape, and lobe colour of compound tepal. Especially for the characterization of free tepal, only one Ketip cultivars that do not have free tepal. Key words : Banana, morphological, characterization Abstrak: Tujuan dari penelitian ini adalah mengidentifikasi jenis pisang yang dibudidayakan di daerah Lombok berdasarkan karakterisasi morfologi (pseudostem/batang semu, daun dan bunga). Penelitian ini bersifat eksploratif dengan mengidentifikasi secara langsung ke lapangan jenis tanaman pisang yang dibudidayakan. Terdapat 19 kultivar tanaman pisang yang dibudidayakan di Lombok. Karakteristik morfologi bervariasi pada pseudostem, daun, dan bunga, kecuali pada keadaan tepi pelepah daun, ukuran bractea, warna lobe pada compound tepal. Khusus untuk karakteristik free tepal, hanya kultivar Ketip yang tidak memiliki free tepal.  Kata Kunci : Pisang, Morfologi, Karakterisasi
DAFTAR ISI JURNAL BIOLOGI TROPIS JULI - DESEMBER 2018 Redaksi Jurnal Biologi Tropis
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.045 KB) | DOI: 10.29303/jbt.v18i2.1470

Abstract

TERLAMPIR

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