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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 2,562 Documents
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JENIS-JENIS MAKROALGA EPIFIT PADA BUDIDAYA (Kappaphycus alvarezii) DI PERAIRAN TELUK GERUPUK LOMBOK TENGAH Mursal Ghazali; Mardiana Mardiana; Menip Menip; Bangun Bangun
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 (178.561 KB) | DOI: 10.29303/jbt.v18i2.861

Abstract

Abstract:Epiphytes are organisms that attach to other organisms to support their growth and development. One type of epiphytes that has a negative impact on the host is algae (macroalgae). This algae is a competing organism for cultivation algae (Kappaphycus alvarezii). This research was conducted From May to October 2017 in Gerupuk Bay, Central Lombok. The aim of the research is to find out the types of macroalgae epiphytes on macroalgae kappaphycus alvarezii. This research was conducted using exploratory methods by taking seaweed samples overgrown with epiphytes, the research data obtained were descriptive analisys. As supporting data, environmental parameters are measured including temperature, pH, salinity, DO, phosphate, and NH4. Based on the results of exploration found 13 species of epiphytic algae in kappaphycus alvarezi cultivation, namely: Chaetomorpha linum, Chaetomorpha linum, Cladophora dalmatica, Acanthophora spicifer, Batrachospermum sp, Callithamnion sp., Caulachantus ustulatus, Ceramium sp, Hypnea spinnosa, Hypnea spinella, Hypnea sp, Polysiphonia brodiaei , Spyridia filamentosa. The type of epiphytes found that grows in both cultivation methods and some others are found only in one method. Meanwhile, data on environmental parameters are in the optimal range for macroalgae growth.This data is expected to be used as a consideration for the cultivateddevelopment in the Gerupuk Bay cultivation center. Keywords : Macroalgae, Epiphytes, Aquaculture,  Kappaphycus alvarezii
APLIKASI TEKNIK ENVIRONMENTAL DNA(eDNA) UNTUK DETEKSI SPESIES Cheraxquadricarinatus (VON MARTENS 1868) MENGGUNAKAN SAMPEL AIR Vella Nurazizah Djalil; Achmad Farajallah; Yusli Wardiatno
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 (430.507 KB) | DOI: 10.29303/jbt.v18i2.878

Abstract

Cherax quadricarinatus merupakan spesies introduksi yang berasal dari Australia. Siklus hidup yang cepat dan toleransi yang tinggi terhadap lingkungan mengakibatkan C. quadricarinatusmudah menginvasi ekosistem perairan. Penelitian ini bertujuan untuk mengaplikasikan teknik eDNA secara cepat untuk deteksi C.quadricarinatus. Teknik ekstraksi dilakukan dengan menggunakan teknik pengendapan. Validasi keberadaan C.quadricarinatusdilakukan dengan menggunakan metode pengembangan PCR dan desain primer spesifik. Hasil menunjukkan bahwa keberadaan C.quadricarinatusterdeteksi sebanyak 60%dari keseluruhan badan perairan. Kombinasi protokol deteksi eDNA dan metode pengembangan PCR, serta primer spesifik yang didesain dapat digunakan untuk mendeteksi keberadaan C. quadricarinatus.Kata kunci :Cherax quadricarinatus, Environmental DNA, deteksi, keberadaan, PCR
KAJIAN MORFOLOGI DAN MIKROMORFOLOGI (SISIK SERTA TRIKOMA) 4 JENIS Pyrrosia Mirb. (Polypodiaceae) DI PROVINSI RIAU Nery Sofiyanti; Mayta Novaliza Isda
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 (507.07 KB) | DOI: 10.29303/jbt.v18i2.857

Abstract

Pyrrosia merupakan  golongan tumbuhan paku epifit dari family Polypodiaceae. Penelitian ini bertujuan untuk mengkarakterisasi morfologi (rhizoma, ptiolus dan lamina) dan mikromorfologi (sisik dan trikoma) dari 4 jenis Pyrrosia yang umum dijumpai di Provinsi Riau, yaitu Pyrrosia heterophyla, Pyrrosia lanceolate, Pyrrosia longifolia dan Pyrrosia pillosheloides.  Hasil karakterisasi morfologi menunjukan variasi pada organ yang diamati, terutama pada ukuran ptetiolus, bentuk dan ukuran lamina. Hasil pengamatan pada sisik menujukan varias pada warna sisik, jumlah rambut pada sisik dan posisinya. Sedangkan trikoma pada ptiolus dan lamina menunjukan persamaan bentuk yaitu stelata.
KOMPOSISI JENIS MAKROALGA DI PERAIRAN PULAU HARI SULAWESI TENGGARA (Spesies Composition Of Makroalga In Hari Island, South East Sulawesi) Ira Ira; Rahmadani Rahmadani; Nur Irawati
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 (525.47 KB) | DOI: 10.29303/jbt.v18i2.770

Abstract

AbstractMakroalga is a large algae with a thallus body structure and has a chlorophyll pigment. Macroalga has an important role in marine waters both ecologically and economically. This study aims to provide information about the diversity of macroalgae in the waters of the Hari Island and the wealth of macroalgae in South East Sulawesi. The study was conducted in the waters of Hari Island, South East Sulawesi from mei to juli 2016. The observation was done by observing all types of macroalgae found in the area traversed. The results of the study found that the number of macroalgae species consisted of 25 species consisting of 11 orders, 14 families, 17 genera. The species composition was dominated by chlorophyta class (44%), rhodophyta class (28%) and phaeophyta class (28%). The water quality of Hari Island waters is still within the range that supports macroalgae growth. Keywords: Composition, macroalgae, Hari Island AbstrakMakroalga merupakan alga yang berukuran besar dengan struktur tubuh berupa thallus dan memiliki pigmen klorofil. Makroalga memiliki peranan penting di perairan laut baik secara ekologi maupun ekonomi. Penelitian ini bertujuan untuk memberikan informasi tentang keanekaragaman jenis makroalga di perairan Pulau Hari, sehingga diharapkan dapat memberikan gambaran kekayaan makroalga di Sulawesi Tenggara. Penelitian dilaksanakan di perairan Pulau Hari Kabupaten Konawe Selatan pada bulan mei-juli 2016. Pengamatan dilakukan dengan sistim jelajah yaitu mengamati semua jenis makroalga yang ditemukan pada area yang dilalui. Hasil penelitian jumlah jenis makroalga yang ditemukan terdiri atas 25 spesies yang meliputi 11 ordo, 14 famili, 17 genus. Komposisi jenis didominasi oleh kelas Chlorophyta (44 %), kelas Rhodophyta (28 %) dan kelas Phaeophyta (28 %). Kualitas air di perairan Pulau Hari masih berada dalam kisaran yang mendukung pertumbuhan makroalga. Kata kunci: Komposisi jenis, makroalga, pulau hari
STUDI ANALISIS KUALITAS AIR SUNGAI BRANGBIJI SUMBAWA BESAR Dwi Mardhia; Viktor Abdullah
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 (230.628 KB) | DOI: 10.29303/jbt.v18i2.860

Abstract

Sungai Brangbiji merupakan sungai yang melintasi kota Sumbawa. Di sekitar sungai Brangbiji terdapat sejumlah indutri tahu tempe. Industri tahu tempe tersebut merupakan industri kecil dimanadalam proses pengolahannya menghasilkan limbah baik berupa limbah padat maupun limbah cair. Limbah cair tahu tempe dengan karakteristik mengandung bahan organik tinggi dan kadar BOD, COD yang cukup tinggi, jika langsung dibuang ke badan air, maka akan menurunkan daya dukung lingkungan pada perairan tersebut. Limbah cair dari Industri tahu tempe di sekitar sungai Brangbiji langsung dibuang ke Sungai Brangbiji tanpa melalui suatu pengolahan terlebih dahulu, hal ini berpotensi besar mencemari sungai Brangbiji. Tujuan penelitian ini adalah 1) Menganalisis kualitas limbah cair industri industri tahu tempe di Kelurahan Brangbiji, 2) Menganalisis kualitas air sungai Brangbiji, 3) Menganalisis pengaruh limbah cair industri tahu tempe terhadap kualitas air sungai Brangbiji, 4) Merumuskan strategi pengelolaan lingkungan penanganan limbah cair industri tahu tempe. Metode yang digunakan dalam penelitian adalah metode survey, obyek kajiannya adalah kualitas air limbah industri tahu tempe dan kualitas air sungai Brangbiji. Penentuan sampel secara purposive sampling. Analisis data dilakukan secara deskriptif kualitatif. Hasil penelitian menunjukkan semua sampel air limbah industri tahu tempe untuk parameter pH, suhu, TDS, TSS, BOD, COD dan ammonia melebihi baku mutu. Kualitas air sungai Brangbiji berdasarkan parameter pH, suhu, TDS, TSS, BOD, COD dan ammonia melebihi baku mutu air kelas 1 dan 2 tetapi masih memenuhi baku mutu air kelas 3 dan 4. Pengaruh limbah industri tahu tempe terhadap kualitas air sungai Brangbiji dapat dilihat pada peningkatan konsentrasi parameter TSS, BOD, COD dan ammonia pada bagian hilir sungai. Adapun strategi pengelolaan lingkungan yang dapat dilakukan adalah penyediaan IPAL Komunal, pemanfaatan limbah menjadi bentuk lain yang bermanfaat dan perlu adanya monitroring rutin kualitas sungai Brangbiji. 
FLUKS GAS RUMAH KACA CO2, CH4 DAN N2O PADA LAHAN EKOSISTEM MANGROVE DI SUNGAI TALLO, MAKASSAR (Fluxes of greenhouse gases CO2, CH4 and N2O from mangrove soil in Tallo River, Makassar) Rahman Rahman; Yusli Wardiatno; Fredinan Yulianda; Hefni Effendi; Iman Rusmana
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 (547.688 KB) | DOI: 10.29303/jbt.v18i2.755

Abstract

Studies on the fluxes of greenhouse gases in mangrove ecosystems especially during tides are relatively scarce. The research was conducted in Tallo River Makassar which is a mangrove ecosystem habitat. Gas sampling was done by utilising size 0,5x0,5x1 m3 chamber through a syringe during the tidal periods. Gas analysis was done using gas chromatography methods. The research shows that the flux of CO2 gasduring high tide was 204,84 mg m-2 hr-1 or 1,79 kg m-2 year-1  and 183,81 mg m-2 hr-1 or 1,61 kg m-2 year-1 during low tide, while the flux of CH4 gaswas 0,75 mg m-2 hr-1 or 0,007 kg m-2 year-1  during high tide and 0,62 mg m-2 hr-1 or 0,005 kg m-2 year-1 during low tide, and the flux of N2O gaswas 0,141 mg m-2 hr-1 or 0,0012 kg m-2 year-1  during high tide and 0,145 mg m-2 hr-1 or 0,0013 kg m-2 year-1  during low tide. Keywords : greenhouse gas flux, mangrove ecosystem, Tallo River
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. 

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