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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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Spatial Distribution and Population Characteristics of Xylocarpus sp. in North Halmahera Regency North Maluku A.R Tolangara; Nurul Amalia R.L; Abdu Mas’ud; Sundari Sundari
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i1.3055

Abstract

North Halmahera Regency is one of the mangrove spots of the Xylocarpus sp species with a fairly abundant amount. This study aims to determine the distribution map of Xylocarpus sp species and population character of Xylocarpus sp in North Halmahera Regency. This research was conducted from April to June 2021. The method used included a mapping survey of Xylocarpus sp by recording the coordinates from GPS for each Xylocarpus sp found. Determination of population character of Xylocarpus sp was done by observing plant morphology related to vitality and periodicity. Data analysis was carried out by processing coordinate data and observational data on the character of the population of Xylocarpus sp into a base map through a GIS application. The results showed that the species Xylocarpus sp. found in North Halmahera district was Xylocarpus granatum. The distribution pattern of Xylocarpus granatum in North Halmaera is spread in groups. Population characteristics show Xylocarpus granatum in very low sociality conditions, vitality in a well-growing state, periodicity in flowering and fruiting conditions.
Jumping Spider (Arachnida: Salticidae: Araneae) in Serang Residential Area, Banten: Inventory Study Using A Photographic Approach Riski Andrian Jasmi; Herlina Putri Endah Sari; Muhammad Nazri Janra
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i1.3044

Abstract

Ecosystem changes due to human activities can affect habitats for several organisms, such as spiders. Spiders have an important role as a predator for mosquitoes, flies, and ants. One of the spider families is Salticidae. Most species from Salticidae are cosmopolitan and often found in an area with dense human activity, such as residential areas. Study about spider species in residential areas is important to determine the effect of urbanization on spider diversity. This research aimed to study about spider species from Salticidae family found in the Serang Residential Area. The individual spider was caught directly by hand, then documented with macro photography techniques. Data analysis was carried out by describing the morphological characters. The results showed 5 species, namely Hasarius adansoni, Menemerus nigli, Menemerus fulvulus, Plexippus paykulli and Plexippus petersi. Documentation using good photography helps in making identification easier. This research is expected to be used as a reference for further research about a spider in a residential area.
The Abundance of Odonata Insect in Lebak Swamp, Bukit Baru, Palembang, Indonesia Novin Teristiandi; Riyanto Riyanto
Jurnal Biologi Tropis Vol. 21 No. 1 (2021): Januari - April
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i1.2456

Abstract

Lebak swamp in Bukit Baru has been largely degraded due to reclamation activity. Lebak swamp plays important role as land resource in Bukit Baru, Palembang. The aim of this study was to examine the composition of Odonata in lebak swamps in Bukit Baru, Palembang, Indonesia. The transect line (1 km) was used to collect odonata in the study area. This study recorded 8 species during the study period. The highest diversity of odonata was found in site A1. The highest abundance of odonata was recorded at site A2 and A4 and dominated by Ceriagrion coromandelianum and Orthetrum sabina. Neurothemis ramburii had the lowest abund  ance at site A1 and A2, but absent at site A3 and A4. The occurrence of odonate species are lower at site around anthropogenic activity suggests the need to protect the lebak swamp so that such uncommon species will not go into local extinction. Neurothemis ramburii can become potential species to evaluate the rate of disturbed environment. 
JENIS-JENIS TUMBUHAN PAKU DI PULAU RANGSANG, KEPULAUAN MERANTI, RIAU DAN KARAKTERISTIK MORFOLOGI-PALINOLOGI Nery Sofiyanti; Afni Atika Marpaung; Rissan suriatno; Syafroni Pranata
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i1.1711

Abstract

Abstrak: Pulau Rangsang meupakan salah satu pulau utama di Kabupaten Kepulauan Meranti, Provinsi Riau yang mempunyai keunikan habitat bagi berbagai jenis flora termasuk golongan tumbuhan paku. Namun data mengenai keanekaragaman flora paku di pulau ini belum pernah dilaporkan sebelumnya. Tujuan dari penelitian ini adalah untuk menginventarisasi jenis-jenis tumbuhan paku di Pulau Rangsang serta mengkarakterisasi morfologi dan sporanya.  Pengambilan sampel dilakukan dengan metode eksplorasi sedangkan pembuatan preparat spora dengan metode asetolisis dan tanpa asetolisis. Sebanyak 23 jenis tumbuhan paku telah di identifikasi di lokasi kajian, yang tergolong dalam 8 Famili, 3 Ordo dan 1 Divisi Polypodiophyta. Tipe dasar spora yang ditemukan adalah monolete, dan trilete, dengan laesura monosulkat dan trikomonosulkat. Tipe spora berdasarkan ukuran yang ditemukan adalah ukuran spora medium dan spora besar.Kata Kunci: Morfologi, kawasan pesisir, paku laut, palinologi, sporaAbstract: Rangsang Island is one of main island of Kepulauan Meranti, Riau Province that poses a uniqe habitat for flora including ferns. However, the data of fern diversity from this island had not been reported. The aim of this study were to inventory ferns from Rangsang Island and to characterize their morphologies and spore characteristics. Sample collection was carried out using exploration method, while spore preparation used acetolysis and non acetolysis method. A total of 23 fern species are identified from the study sites. They belong to 8 families, 3 orders from Division Polypodiophyta. Basic spore type observed in this study are monolete and trilete, with monosulcate and trichomonosulcate laesura. Spore types based on its size found in this study are medium and large spore.Keywords: coastal area, morphology, palynology, sea fern, spore
Application of Water Hyacinth Liquid Bio-Organic Fertilizer Using Trichoderma Sp Bio-activator on Growth and Production of Green Mustard Plants (Brassica rapa var. Parachinensis) Febiayu Aloatuan; Centhya Victorin Maitimu
Jurnal Biologi Tropis Vol. 20 No. 3 (2020): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i3.2058

Abstract

Mustard greens (Brassica rapa var. Parachinensis) are known vegetables among consumers and have high economic value. Besides being used as a vegetable, mustard greens are also used for the treatment of various diseases so that they are included in the vegetable group which has an important role in meeting the needs of food, nutrition and medicine for the community. To increase the growth and production of green mustard plants, it is necessary to apply liquid bio-organic fertilizers that are sourced from organic materials with good nutrients needed by plants, one of which is water hyacinth weed. To improve the quality of water hyacinth liquid bio-organic fertilizer, it can be applied with the bio-activator Trichoderma sp which functions to produce liquid bio-organic fertilizer with high nutrients for plant growth and production. The purpose of this study was to determine the growth of mustard greens including plant height, number of leaves and leaf width and to test the production of mustard greens including caratenoids and vitamin C content. This study used a completely randomized design (CRD) with a single factor, namely fertilizer. Liquid organic (POC) water hyacinth fermented using Trichoderma sp. which consists of 5 levels of fertilization doses, namely A (0 ml / L), B (8 ml / L), C (16 ml / L), D (24 ml/L) and E (32 ml/L) with 5 repetitions. Based on the results of analysis of variance, it showed that the dosage treatment of water hyacinth bio-organic fertilizer with the bio-activator Trichoderma sp had a significant effect on p <0.05 on plant height, leaf width and the number of green mustard leaves at 4 weeks of age 21 day after planting. with the results of the chemical content test which showed that treatment E (32 ml/L) contained Karetenoid (0,2596 mg/100g of material) and vitamin C (0.2784 mg/100 g of material). The best dose based on the results of the study was treatment E (32 ml/L) which had a higher average plant height, leaf width and number of leaves compared to other treatments and had high vitamin A and vitamin C content. To increase the growth and production of mustard greens and other horticultural cultivation processes, it is advisable to use liquid bio-organic fertilizer for water hyacinth with the bio-activator Thricoderma sp as an alternative to natural, environmentally friendly liquid organic fertilizer.
The Effect of Adding Iodine to the Feed to Increase Growth and Survival Rate of Carp Seeds (Cyprinus carpio) Ayu Nirmaniar Fadliani; Ayu Adhita Damayanti; Ibadur Rahman
Jurnal Biologi Tropis Vol. 20 No. 2 (2020): Mei - Agustus
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i2.1698

Abstract

One of the factors that greatly influence the successful growth of cultivated fish is feed. The aim of this study was to examine the effect of iodine addition on the growth and survival rate of carp (Cyprinus carpio) seeds. This study used a completely randomized design (CRD) method with 4 treatments and 3 replications. 10 fish per unit each, with treatment P0 (feed without adding iodine), P1 (feed + iodine at a dose of 10 mg / kg), P2 (feed + iodine at a dose of 20 mg / kg), P3 (feed + iodine at a dose of 30 mg / kg). The results showed that there was no significant effect (p> 0.05) on the growth rate, feed conversion and survival rate of goldfish. So it can be concluded that the addition of iodine in feed supplementation up to a dose of 30 mg / kg does not have a significant effect on the growth rate of length and absolute weight, feed conversion, survival rate and iodine content in the body of goldfish (Cyprinus carpio). The best recommended dose of iodine for growth is 20 mg / kg of feed, although the results were not significantly different for growth. However, it can have an effect on the iodine content in the body of goldfish.
Study of dug well water quality in Labuan Bajo, Indonesia Daniel Wolo; Anna S. Rahmawati; Melania Priska; Insar Damopolii
Jurnal Biologi Tropis Vol. 20 No. 3 (2020): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i3.2135

Abstract

The dug well water quality in community settlements needs assessment to ensure its quality. The water has to meet the required physical, chemical, and bacteriological standards. This initial research aimed to determine the dug well water quality in Kampung Ujung, Komodo District, Labuan Bajo City, WestManggarai Regency in September 2019. The research method was used survey and laboratory. The two dug well was taken used a purposive sampling technique. The test parameters include temperature, turbidity, pH, smell, Total Suspended Solid (TSS), sulfate, Total Dissolved Solid (TDS), nitrate, nitrite, Total Hardness, Dissolved Oxygen (DO), nitrogen ammonia, total coliforms, and Escherichia coli. The analysis physically, chemically, and biologically of two dug well water samples were had done examined. The result showed that the parameters of TDS, nitrate, nitrite, E. coli, and DO exceed the Class I Water Quality Standard. The research concluded that the quality of both dug well water in the Kampung Ujung Labuan Bajo area was not suitable for use as material raw drinking water. Furthermore, the government should provide other water sources such as the addition of storage tanks for raw water, so that people do not entirely depend on dug well water.
Effectiveness of Metabolite Substance Filtrates of Actinomycetes isolates from Kebun Raya Bogor against the growth of Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi: In Vitro study Muhammad Zaidan Tsani Ariandi; Meiskha Bahar; Hany Yusmaini; Fajriati Zulfa; Cut Fauziah; Andri Pramesyanti
Jurnal Biologi Tropis Vol. 21 No. 1 (2021): Januari - April
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i1.2466

Abstract

Actinomycetes are found in soils with loose, humus, dry characteristics and around plant roots. Actinomycetes produce secondary metabolite compounds as antibacterial. Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi are Gram negative bacteria that can cause infection in humans. This study aims to determine the ability of the Actinomycetes metabolite filtrate from Bogor Botanical Gardens as an antibacterial agent against the growth of E. coli, P.aeruginosa and S. typhi in vitro. This study used an experimental design with samples of Actinomycetes isolats originating from the Bogor Botanical Gardens soil using the disc diffusion method on Muller Hinton Agar (MHA) media by looking at the clear zone of bacterial growth around the disc paper. Of the three concentration groups, namely 50%, 60%, and 70%, the largest average inhibition zone is found at a concentration of 70% with the average for the three test bacteria E. coli, P.aeruginosa and S. typhi respectively: 4.23 mm; 3.0 mm and 8.43 mm. The results of the Kruskal - Wallis test with p value = 0.01 showed that there was an effect of the Actinomycetes metabolite filtrate on the growth of the three tested bacteria as antibacterials.  
Centella asiatica Activities towards Staphylococcus aureus and Escherichia coli Growth Sandi Murdiyansah; Dewa Ayu Citra Rasmi; I Gde Mertha
Jurnal Biologi Tropis Vol. 20 No. 3 (2020): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i3.1418

Abstract

Centella asiatica contains some secondary metabolic compounds, e.g. tannin, alkaloid, flavonoid, saponin, and triterpenoid, known as medicinal plants as well, one of which is as a anti-bacterial. The present study aimed at examining the activities of Centella asiatica extract towards the growth of Staphylococcus aureus and Escherichia coli. The extraction of C. asiatica was done by using ethanol and ethyl acetate solvents and the activity test employed seaweed diffusion. The hindrance power of Centella asiatica extract was tested in 30%, 50%, and 95% and the data were analyzed qualitatively with the standard issued by the Clinical and Laboratory Standard Institute and quantitatively with ANOVA. It shows that Centella asiatica extract in the ethyl acetate can hinder the growth of Staphylococcus aureus in the acetate concentration of 50% and 70% at the sensitive level and Escherichia coli at the intermediate level in the extract concentration of 50% and 70%. However, Centella asiatica activities in the ethanol solvent hinders the growth of either Centella asiatica or Escherichia coli with resistant category in the extract concentration of 70%. The hindrance power of Centella asiatica extract in ethyl acetate in the growth of Staphylococcus aureus is significantly more effective than that of Centella asiatica extract in the ethanol solvent
Pest and Disease Identification in Parijoto Plant (Medinilla speciosa blume) at Nglurah Tawangmangu Weli Umiyati; Manda Ayu Pramesti; Elin Pujiastutik
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i3.2970

Abstract

Parijoto (Medinilla speciosa blume) is a tropical plant that has purplish pink fruit often called Asian grape. In Indonesia, parijoto plants are very well known as ornamental plants that have various benefits, from parijoto fruit can be used as anti-inflammatory drugs so that ornamental plants are widely cultivated by the community, especially lovers of ornamental plants and ornamental plant cultivation in Nglurah. Medinilla speciosa blume is very suitable in Indonesia, which has a tropical climate, but the high rainfall in Indonesia in the rainy season should get more attention in caring for it. This makes parijoto plants susceptible to several types of diseases and pests that can damage the beauty of the Medinilla speciosa blume plant. However, the lack of experts in this field makes it very difficult for plant lovers and the cultivation community of Medinilla speciosa blume in Nglurah to solve the problem of diseases and pests that attack the Medinilla speciosa blume plant. The purpose of this study was to determine pests and diseases on Medinilla speciosa blume. This research was conducted in Nglurah Village Rt 01 Rw 02 Tawangmangu for five days on 04 – 08 September 2021. This research uses observation and interview methods. Data were analyzed by qualitative descriptive. This study used 10 samples of the observed Medinilla speciosa blume plant. The tools used are cellphone cameras and stationery. The variables to be observed are pests and diseases. The results of this study found 4 pests and 2 diseases on Medinilla speciosa blume including Fussarium oxysporum, Cercospora sp and Pestalotia sp, mealybugs, caterpillars, snails, grasshoppers. For this reason, the solution for treating parijoto plants to avoid pests and diseases requires extra care such as paying attention to soil moisture, giving appropriate fertilizers, and giving vitamins so that parijoto plants can grow well.

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