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Jurnal Biologi Universitas Andalas
Published by Universitas Andalas
ISSN : -     EISSN : 23032162     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 261 Documents
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Jenis-Jenis Foraminifera Bentik di Teluk Bayur Padang, Sumatra Barat Radilla Silmiah; - Jabang; Siti Salmah
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

A study on benthic Foraminifera in Padang, West Sumatra was conducted from June 2012 to January 2013. The main purpose of this study was to determine the types spesies of benthic foraminifera at Teluk Bayur, Padang, West Sumatra. Samples of foraminifera were collected purposively at Teluk Bayur. A total of six spesies of foraminifera (Quinqueloculina lamarckiana, Triloculina fichteliana, Miliolina subrotunda, Spiroloculina communis, Operculina ammonoides and Operculina complanata) was collected that belong to 2 Suborder (Miliolina and Rotaliina), 3 family (Hauerinidae, Spiroloculinidae, and Nummulitidae), and 5 genera. The highest number of individuals was from suborder Rotaliina (Operculina complanata 64.597 individuals).Keywords : Foraminifera, Benthic, Teluk Bayur
Jenis-Jenis Semut (Hymenoptera: Formicidae) di Bangunan Kampus Universitas Andalas Limau Manis Padang Anna Febry Astuti; Henny Herwina; - Dahelmi
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

Abstract

Study about ants species (Hymenoptera: Formicidae) at campus building was conducted in Andalas University Limau Manis Padang from September 2012 to April 2013. Direct collection method and baited traps were used to collect ants at 12 building. A total of 11 species that belonging to four subfamily, six tribe, and 11 genera and 859 individual of ant was collected. Myrmicinae was the highest in number of species (four species), followed by Dolichoderinae (three species) only two species were found as Formicinae and Ponerinae. Six of collected species are recognized as ant pests. Keywords: ant, pest, campus, building
Variasi Morfologi Arachnothera longirostra (Passeriformes, Nectariniidae) (Latham, 1790) Aldino Fauzil Fanani; Wilson Novarino; Djong Hon Tjong
Jurnal Biologi Universitas Andalas Vol 1, No 1 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.1.%p.2012

Abstract

Research about morphological variation of Arachnothera longirostra (Passeriformes, Nectariniidae) on Harapan Rainforest (Jambi), The Biological Education and Research Forest (BERF) and Marapi Mount have been conducted from September 2011 to February 2012. The samples have been collected directly on the field and data were analyzed on Animal Taxonomy Laboratory, Biology Departement, Faculty of Mathematics and Natural Sciences, Andalas University, Padang. Based on the (analysis) result using Kruskall-Wallis Test, the females were found five of nine variation morphological characters and the males were found seven characters. Based on Mann-Whitney U test was found one character that appeared consistenly different to females such as WDTB (Wide Bill), while for males were found two characters such as WDTB (Wide Bill) and LGTR (Long Tarsus). Phenogram obtained by UPGMA analysis showed close relationship between populatiaon of A. longirostra from both of Marapi and HPPB populations.Keywords: morphology, variation, nectariniidae, Arachnothera longirostra
Pengaruh Lama Pelapukan Media Limbah Industri Teh Terhadap Pertumbuhan Miselium Produksi Jamur Kuping Hitam (Auricularia polytrica (Mont.) Sacc.) Mitra Angelia; - Periadnadi; - Nurmiati
Jurnal Biologi Universitas Andalas Vol 2, No 4 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.4.%p.2013

Abstract

The study about effect of media composting duration from industrial waste of tea production to the mycelium growth and production of black ear mushroom (Auricularia polytrica (Mont.) Sacc.) was conducted from December 2012 to February 2013 in the Laboratory of Microbiology, Department of Biology, Andalas University, Padang. This study aimed to determine the effects of media composting duration to the mycelium growth and production of black ear mushrooms. The research was designed by using completely randomized design (CRD) in five treatments of Composting duration, they were 0, 1, 3, 5 and 7 days in 5 replications. The result showed that the treatment of 5 days media composting was the optimum length of time for 32 days the growth of mycellium, the weight of fruiting bodies was 50.89 g, the widest diameter of the cap of fruiting body was 9.05 cm, the cellulase activity of the mycellium in the baglogs was 4,769 units/g and producing the highest content of glucose after composting was 153.526 µg/g. Keywords: composting duration, waste of tea, Auricularia polytrica, mycelium growth.
Jenis-Jenis Serangga Pengunjung Bunga Pacar Air (Impatiens balsamina Linn. :Balsaminaceae) Nadra Khairiah; - Dahelmi; - Syamsuardi
Jurnal Biologi Universitas Andalas Vol 1, No 1 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.1.%p.2012

Abstract

A study of visitor insects to the flower of Impatiens balsamina Linn. has been conducted in two locations, i.e. Ulu Gadut, Bandar Buat, Lubuk Kilangan Subdistrict, Padang City and Koto Tinggi, Surian, Pantai Cermin Subdistrict, Solok Regency in February 2012. The purpose of the study was to determine the species of visitor insects of the flowers of Impatiens balsamina. Direct collection method by using insect net was used in this study. Insects were identified at Laboratory of Animal Taxonomy, Biology Department, Faculty of Mathematics and Natural Sciences, Andalas University, Padang. The results showed that 16 species of insects that belong to 16 genera, 9 families and 3 orders were recorded. The visitor insects were dominated by Hymenoptera order (68.75%) followed by Lepidoptera (18.75%) and Diptera (12.50%).Keywords: Impatiens balsamina, insects, visitors, flower, species
Struktur Kelompok, Daerah Jelajah, dan Jenis Makanan Ungko (Hylobates agilis) di Hutan Pendidikan dan Penelitian Biologi Universitas Andalas Yunila Berliana; - Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study on group structures, home ranges and plant species eaten by agile gibbons (Hylobates agilis) at The Biological Education and Research Forest, Andalas University was conducted from June to November 2012. Group structures were figured out through direct count method during field surveys, while plants eaten by the gibbons were recorded using ad-libitum observation. There were 15 gibbons which belong to three monogamous groups. Structure of the groups consisted of one adult male and one adult female, one subadult, 1-2 juveniles, and 0-1 infant. Sex ratio of the population was 1.1 : 1. Average home range was 10.9 ha. Population density of the gibbons in a defined area of 62.76 ha was 23.9 individu/km2 and group density was 4.78 group/km2. There were 17 species of plant eaten by the gibbons, those species belong to 11 families, where the highest number of species belong to Euphorbiaceae and Moraceae.Keywords: Hylobates agilis, group structure, home range, food plant
Uji Aktivitas Antibakteri Ekstrak Kental Tanaman Pisang Kepok Kuning (Musa paradisiaca Linn.) terhadap Staphylococcus aureus dan Escherichia coli Ayu Putri Ningsih; - Nurmiati; Anthoni Agustien
Jurnal Biologi Universitas Andalas Vol 2, No 3 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.3.%p.2013

Abstract

Antibacterial activity of crude extracts of pisang kepok kuning plants (Musa paradisiaca Linn.) were tested against Staphylococcus aureus and Escherichia coli. Roots, corms, pseudoterms, flowers, and ripe fruits of pisang kepok kuning cultivar were macerated with ethanol 96% and evaporated in a rotary evaporator at 50C. All of crude extracts were screened for its antibacterial activity by using Agar Well Diffusion Method with concentration based on 200 grams of fresh weight. This research used Completed Randomized Design (CRD) with nested pattern, four replications, and consist of two factors. First factor was bacteria and the second factor was crude extracts of pisang kepok kuning such as roots, corms, pseudoterms, flowers, and ripe fruits. The results showed that all of crude extracts have significant antibacterial activity against S. aureus and E. coli. Crude extract of the corm has highest antibacterial activity against S. aureus with diameter of inhibition area was 20,391 mm with inhibition zone type isirradical and diameter inhibition area 18,962 mm for E. coli that has radical zone.Keywords : Musa paradisiaca Linn., S. aureus, E. coli, antibacterial
Uji Antimikroba Curcuma spp. Terhadap Pertumbuhan Candida albicans, Staphylococcus aureus dan Escherichia coli Rahmi Adila; - Nurmiati; Anthoni Agustien
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study about the effect of fresh extract of Curcuma spp on the growth of Candida albicans, Staphylococcus aureus and Escherichia coli was conducted from March to July 2012 at Microbiology Laboratory, Faculty of Sciences Andalas University. This experiment used nested completely randommized design. The result showed that fresh extracts of Curcuma spp. have different growth inhibition effects on C. albicans, S. aureus dan E. Coli. Temulawak (Curcuma xhantorrhiza) has the highest inhibition effect to the growth of C. albicans (13.07 mm), S. aureus (15.75 mm) and E. coli (31.56 mm). The lowest bactericidal consentration of fresh extract rhizome of temulawak for E. coli were 12.5% and 25%, but there is no inhibition effect to the C. albicans and S. aureus.Keywords: Curcuma, antimicrobial, extract, pathogen microbial
Keanekaragaman Jenis Orchidaceae (Anggrek-anggrekan)Di Kawasan Hutan Lindung Gunung Talang Sumatera Barat Febry Fihendra Musa; - Syamsuardi; Ardinis Arbain
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

Taxonomical study of Orchidaceae at Talang Mountain had been done from September 2012 to March 2013. Plant samples were collected along climbing path of Talang Mountain using survey method. Those samples were processed and identified at Herbarium of Andalas University (Herbarium ANDA) Padang. This study found 23 species of orchids which belong to 16 genera (i.e. Arundina, Bulbophyllum, Ceratostylis, Coelogyne, Chelonistele, Dendrobium, Dendrochilum, Eria, Hylophila, Liparis, Oberonia, Peristylus, Phaius, Pholidota, Sphatoglotis, and Trichoglottis). Fifteen species were ephyphytic and eights pecies were teresterial plant. One speciesof the orchids (Eria merapiensis Schltr.) is endemic in Sumatra.Keywords : orchidaceae, species, identification, Talang Mountain, endemic.
Komposisi dan Struktur Zooplankton di Danau Singkarak Jenie Wulandari; Afrizal S; Jabang Nurdin
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

Abstract

The research about compotition and structure community of zooplankton in lake Singkarak has been done from March 2013 until May 2013. This study used purposive method and zooplankton sampling was done by using vertical filtering from 10 stations. The results shown that there were 16 species zooplankton with Crustacea (8 species), Protozoa (3 species) and Rotifera (5 species). Average population density of zooplankton were 32.43 ind./l with varying type on each station. Diversity index were 0.79-1.52 and highest was found at station II and IX (H’=1.73) and lowest was found at station IV (H’=1.73). Equitability index was 0.32-0.91% higest was found at station X (E=0.91) and lowest was found at station IV (E=0.32). Similarity index was 31.25-76.92%. Based on the diversity index of zooplankton show that the community was relatively stable. Key words : Singkarak, Zooplankton, Structure, Composition, Community

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