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All Journal Biospecies Jurnal Biologi Udayana AL KAUNIYAH Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Biologi Universitas Andalas Jurnal Riau Biologia Jurnal Ilmiah Pertanian Jurnal Biodjati Jurnal Biologi Tropis Biosaintifika: Journal of Biology & Biology Education Bio-Lectura Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal KALANDRA
Mayta Novaliza Isda
Jurusan Biologi FMIPA Universitas Riau, Kampus Bina Widya Panam, Pekanbaru, Riau, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences

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Journal : Jurnal Riau Biologia

 1 
Laju Produksi Serasah Pada Dua Vegetasi Dominan Hutan Mangrove Di Desa Bukit Batu Kabupaten Bengkalis Provinsi Riau EFENDI, RANNY ARIESTA; KHAIRIJON, KHAIRIJON; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 3, No 1 (2018)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Desa Bukit Batu, Kabupaten Bengkalis, Riau merupakan salah satu desa yang terletak di kawasanekosistem mangrove, beberapa jenis mangrove, termasuk Sonneratia sp dan Rhizophora sp ditemukan padaekosistem ini. Tujuan dari penelitian ini untuk menentukan perbedaan laju produksi serasah pada dua jenisvegetasi dominan di ekosistem mangrove.Daerah penelitian dibagi menjadi tiga zona yaitu Zona I, Zona II,dan Zona III.10 littertrap berukuran 50 cm x 50 cm dipasang disetiap zona menggunakan metode purposivesampling.Serasah yang tertampung diambil 1 (satu) minggu sekali selama 6 (enam) minggu, serasahdianalisis dengan menimbang berat kering.Parameter lingkungan yang diamati adalah suhu udara, salinitas,kelembaban, curah hujan, suhu tanah, pH tanah dan kerapatan vegetasi. Total produksi serasah tertinggididapatkan pada zona III yaitu 376,09 g/m2/minggu. Persentase produksi serasah paling tinggi pada ke tigazona adalah organ daun sebesar 75%.
Induksi Tunas dari Eksplan Kotiledon dan Epikotil In Vitro Jeruk Siam (Citrus nobilis Lour.) Asal Kampar pada Media MS CAHYATI, SRI; ISDA, MAYTA NOVALIZA; LESTARI, WAHYU
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Citrus nobilis Lour. (Siam Orange) from Kampar is one of the main fruits in Riau Province that is highlyconsumed by many people, but nowadays its productivity is lower due to pests and diseases. In order tomaintain the availibility of citrus from Kampar and to conserve this plant, an effort that can be done is byusing in vitro culture with the use of a combination of growth regulator; cytokine and auxin usingcotyledons and epicotyl explant. This study aimed to determine the best explant source and to know theeffect of the concentration combination of BAP, kinetin, and NAA that optimal in inducing plant shoot ofSiam orange. This study was conducted at Laboratory of Integrated Biology, Department of Biology,Faculty of Mathematics and Natural Sciences using a completely randomized design (CRD) with variousconcentrations of treatments, and observed for 42 days. The results showed that the percentage of lifeexplants, swelling cotyledon, and epicotyl explants was 100%, the percentage of best shoot formation was60% on the epicotyls explant with 1.0 mg/l BAP + 0.5 mg/l kinetin + 0.5 mg/l NAA. The percentage ofcallus formation only found in epicotyls explants with the highest percentage (100%) at 2.0 mg/l BAP +0.5 mg/l kinetin +1.0 mg/l NAA.Keywords: Citrus nobilis Lour., cotyledons, epikotil, in vitro, shoot induction.
Penaksiran Biomassa dan Karbon Tersimpan pada Ekosistem Hutan Mangrove di Kawasan Bandar Bakau Dumai MANDARI, DESTI ZARLI; GUNAWAN, HARIS; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Mangrove forest ecosystem has a function as an absorber of Carbon dioxide (CO2) from the air and storecarbon in the form of biomass. The research was conducted in December 2014 until January 2015, andaimed to determine the total amount of above-ground biomass and the carbon stock as well as therelation of the three conditions of the development of mangrove forests in the area of Bandar Bakau,Dumai, Riau Province. The plot was made by using transect line plot method, 50 x 50 m in size with atotal of 3 plots along the coastline. Each plot contained 5 (five) sub-plots (10 x 10 m) that randomlydetermined. The results showed that along the transect line was found 10 species of mangrove, i.e.Xylocarpus granatum, Rhizophora apiculata, Rhizophora mucronata, Bruguiera gymnorrhiza, Avicenniaalba, Avicennia marina, Sonneratia alba, Lumnitzera racemosa, Lumnitzera littorea, and Scyphiphorahydrophyllacea. The vegetation was dominated by Xylocarpus granatum with a density of 2128 trees/haand Rhizophora apiculata with a density of 1472 trees/ha. The highest total biomass and carbon stockgenerated by X. granatum with total biomass 78.6 ton/ha equivalent to 39.3 ton of C/ha. The total value ofbiomass produced from the whole plot is 115.85 ton/ha with a total carbon content stored at 57.91 tonC/ha.Key words: Above-ground Biomass, Carbon stored, Mangrove density, Xylocarpus granatum
Induksi Tunas in vitro Jeruk Siam (Citrus nobilis Lour.) Asal Kampar pada Berbagai Konsentrasi Sukrosa FATONAH, SITI; ISDA, MAYTA NOVALIZA; LESTARI, WAHYU
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

This study aimed to determine the most effective concentration of sucrose for a shoot induction fromcotyledon explants of Citrus nobilis from Kampar. Cotyledon explants were cultured on Murashige andSkoog (MS) medium containing sucrose at various concentrations without supplemented with growthregulators. The treatments consisted of five concentrations of sucrose, i.e. 0, 20, 30, 40, 50, 60 g /l. Theresult showed that all explants on different concentrations of sucrose treatment had the percentage ofliving and the percentage of shoot induction reached 100%. The best response for shoot induction aftereight weeks of culture was observed on MS medium supplemented with 50 g/l sucrose with the number ofshoot was 2, shoot length was 4,125 cm, and leaf number was 5,74 strands.Key words: Citrus nobilis lour., concentration of sucrose, in vitro, shoot induction
Tingkat Kerusakan Ekosistem Mangrove di Desa Teluk Belitung Kecamatan Merbau Kabupaten Kepulauan Meranti UMAYAH, SARI; GUNAWAN, HARIS; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

The destruction of mangrove forest ecosystems in Teluk Belitung Village, Kepulauan Meranti, wascaused by various human activities such as industrial activities, illegal logging, and coastal erosion.Rehabilitation efforts was needed to preserve mangrove forests. The community involvement had animportant role in determining the success of mangrove rehabilitation. This study aimed to determine theextent of mangrove forest ecosystem destruction based on the density and mangrove forest cover.Furthermore, this research described local community participation level and their knowledge inrehabilitation efforts of mangrove forest ecosystem. This study was conducted in Teluk Belitung,Subdistrict of Merbau, Kepulauan Meranti from November 2014 to March 2015. This study usedobservation, questionnaire, and interview methods to investigate the destruction of mangrove forestsecosystem and local community involvement in mangrove forests rehabilitation. The results showed thatthe region has suffered damage to the mangrove with a total density value of 626.67 trees/ha andmangrove forest cover in all types of <50%. The level of public participation was affected by socialstatus, planning, attitudes, and community rules in Teluk Belitung.Keywords: mangrove, community, participation, rehabilitation
Co-Authors Adil Azzahwantara Adjie, Agung Purnomo Afragenia Zelfira Agung Purnomo Adjie Alzira Salsabillah Anwar, Nurhayati Appriliya Destiyana Ariya Permata Asih Rahayu Ajeng Agesti Asri Ria Lestari Ayu Azhari Chica Ollivia Fibrianti Defila Yanti Desita Salbiah DESTI ZARLI MANDARI, DESTI ZARLI Dewi, Reza Puspita Dhini Yulianti Diana Agriani Diandra Prudentia Dyah Iriani EFENDI, RANNY ARIESTA Elli Indriana Putri Elsya Desviyanti Elvianis Elvianis Ennie Chahyadi ERWINA JULIANTARI, ERWINA Fajar Nugraha Febby Ika Desyana Fitmawati Fitmawati Fitmawati Fitmawati Fitmawati Fitmawati Fitmawati Fitmawati Fitria Elysye Ningrum Fransisca Elvarina Hariono, Eko Haris Gunawan Ikhwan Taufik Ilahi, Rizky Nanda Kurnia Ismu Sodaqti Isra Fariza KHAIRIJON, KHAIRIJON Lailani Sabrina Laura Aprilia Ayu Kusuma Wahyu Priyadika M. Athallah Dzikri Alhady M. Rizqy Pratama Syah Marlina Agustina Sitinjak Maulana Ishak Maya Sari Meutia Hanum Meyla Suhendra Mimi Safitri Muhammad Asyraf Muhammad Tamyis Lutfi Hakim Nadia Kristina Najmi Fadhila Nithami Nery Sofiyanti Nia Ivanka Noto Prasetio Nurhafidha Ramadhani Nurhayati Anwar Oriza Athalia Ronald Pangeran Saud Fransisco Putri Maisarah Qintara Sahira Rafi Shadiq Alvi Rahmi Fitri Rana, Syafia Diang Ranny Wirmasari Rasyidah Ulfa Reza Puspita Dewi Riche Afrilla Riski Saputra Rizal Noor Rodesia Mustika Roza Rosmaina Rosmaina Saputra, Agus Sarah Novita Sari Umayah, Sari Savanah Zahra Sinaga, Patar Siti Fatonah Siti Fatonah Siti Fatonah SRI CAHYATI, SRI Surjawati Surjawati Syafia Diang Rana syafroni Pranata Syahrul M. Tirtha Juliana Titrawani Titrawani Vina Dwi Amanda Wahyu Lestari Wahyu Lestari Wulan refolla Yana Lisa Warni Yulia Rahmi