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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 43 Documents
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Search results for , issue "Vol. 22 No. 1 (2022): January - March" : 43 Documents clear
Isolation and Analysis of Bioactive Compounds Endophytic Bacteria of Sea Fern (Acrtostichum aureum L.) from Bengkalis Island, Riau Tetty Marta Linda; Azizul Berlyansah; Bernadeta Leni Fibriarti; Nery Sofiyanti; Silvera Devi
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.v22i1.3104

Abstract

Endophytic bacteria have been known to produce high levels of secondary metabolites. The sterile leaves of the sea fern (Acrostichum aureum L.) contain many phytochemical compounds. This sea fern is often found in peat swamp areas. The aim of this study was to isolate, partial characterization, and analysis of bioactive compounds from endophytic bacteria of sea ferns to determine their bioactive compounds. Endophytic bacteria were isolated by a direct technique using nutrient agar (NA) media. In this study, the endophytic bacteria were characterized by macroscopic, microscopic, and Gram. Several tests were further performed, namely phytochemical test and Fourier Transform Infra Red (FT IR) FTIR tests from a crude extract of secondary metabolites of bacteria. The results of the isolation obtained six isolates of endophytic bacteria consisting of all isolates were Gram-negative. The phytochemical test results for the six isolates were positive for alkaloids and saponins but no steroids. Based on the results of phytochemical tests and FT IR, it is suspected that the isolate DSB 1.6 has similarities with the alkaloid functional group. This endophytic bacterial isolate can be developed as a candidate for produced of pharmacological compounds.
Phytoplankton Community as A Bioindicator for Water Quality of Sumi Dam, Bima Regency Muhamad Hairil Anas; Lalu Japa; Khairuddin Khairuddin
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.v22i1.3109

Abstract

The waters of the Sumi dam have an important role in accordance with the purpose of its construction. Therefore, monitoring of water quality becomes necessary because good water quality is an important requirement for every organism. This study aims to examine the water quality of the Sumi dam based on the community and species diversity of phytoplankton. The sampling location was determined based on the purposive sampling method. Water samples were taken in April 2021 using a 20 micron plankton net and preserved with formalin at a concentration of 4% preservation. The results showed that the identified phytoplankton community in the Sumi Dam consisted of 80 species and 13 classes. The index value of the diversity of phytoplankton species in the Sumi dam is high. Based on the index value of the diversity of phytoplankton species as a bioindicator, the waters of the Sumi dam are included in the unpolluted category.
Abundance and Distribution Patterns of Sea Urchins (Echinoidea) at Lakey Beach, Hu'u District, Dompu Regency Fitriyani Fitriyani; Didik Santoso; Karnan Karnan
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.v22i1.3119

Abstract

Sea urchins are marine biota that have many benefits for life, so there is a need for information about the existence of sea urchins. The existence of sea urchins in marine ecosystems has a significant influence on the ecological balance, one of which is for coral reefs, because sea urchins are one of the control of macroalgae populations. The purpose of this study was to determine the species abundance, diversity index, dominance index and distribution pattern of sea urchins (Echinoidea) at Lakey Beach, Hu'u District, Dompu Regency. This type of research is descriptive exploratory using purposive sampling method (chosen method) in determining the three research stations. The data obtained were analyzed using the species formula, the Shanon Wienner diversity index, the Simpson dominance index, and the Morisita index. The results showed that the highest species on the Lakey Coast were Echinometra mathei with values of 0.60 Ind/m² and Echinometra viridis with values of 0.45 Ind/m². The diversity index of sea urchins at Lakey Beach is included in the moderate criteria with a species diversity index value of H'=1.03. The sea urchin dominance index in Lakey Beach is included in the low criteria with a species dominance index of 0.42. The distribution pattern of sea urchins on Lakey Beach includes two criteria, namely flocking and uniform. Types of sea urchins that belong to a grouped distribution pattern are Echinometra mathei and Echinometra viridis. While the types of sea urchins that have a uniform distribution pattern are Diadema setosum, Echinotrix calamaris (brown striped spines), Mespilia globulus, and Tripneustus gratilia. This research can be used as a reference and source of information to see the condition of the ecosystem in Lakey Beach, Hu'u District, Dompu Regency. So that the community and can preserve marine life such as sea urchins (Echinoidea) so that their lives can be maintained.
Potential of Forest Bird Diversity and Abundance in Tretes Waterfall, Wonosalam as an Avitourism Location Muhammad Zahrudin Afnan; Monica Salma Fitriandini; Mahendra Ekalukmana Firmansyah
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.v22i1.3152

Abstract

Tretes Waterfall is an avitourism area because it is located in the Raden Soerjo Grand Forest Park area. The diversity of bird species is very abundant there, especially forest birds. The diversity and abundance of birds are influenced by the condition of the forest which is still beautiful and the availability of various types of trees and other living things as a source of food for a bird. The purpose of this research To analyze the potential diversity and abundance of forest birds in Tretes waterfall, Wonosalam as an avitourism location and Analyzing the carrying capacity of management as Tretes Waterfall, Wonosalam, an avitourism location. The study was carried out from June to September 2021. The method used is the IPA (Index Point of Abudance) method, namely bird data collection is carried out at a certain time where there are 4 observation points and the rapid assessment method. The species of birds found in Tretes Waterfall, Wonosalam were 45 species with the abundance value of bird species at the observation point of residential residents categorized as general. While the abundance of bird species at the observation points of post 1, post 2, and waterfalls is in the frequent category (2.1-10,0). Tretes Waterfall has the potential to be developed as an avitourism area. More in-depth research can be carried out to determine the spatial and temporal distribution of birds in Tretes Waterfall so that avitourism is easier to develop.
The Local Knowledge of Medicinal Plants by The Tanjung Merpati Village Community for The Postpartum and Infant Care Yeni Mariani; Fathul Yusro; Evy Wardenaar; Yuliati Indrayani
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.v22i1.3156

Abstract

Women often experience various health problems with their reproductive organs. They also have to take several treatments during postpartum and infant care. In the community, these treatments generally use medicinal plants and become local knowledge. This study aimed to document the local knowledge of Tanjung Merpati Village community in using medicinal plants for postpartum and infant care. We interviewed a total of 96 respondents, who are the general public in Tanjung Merpati Village. The data obtained were analyzed in the form of use-value (UV), informant consensus factor (ICF), and fidelity level (FL). The analysis results showed 22 species of medicinal plants used for postpartum and infant care. Plants such as kunyit kuning (Curcuma longa), cokur (Kaemperia galanga), entomu (Curcuma xanthorriza), and ginger (Zingiber officinale) have the highest UV values with values respectively (1; 0.96; 0.84 and 0.8). Baby haircare shows the highest ICF value. Several plants have the highest FL value (100), namely manjakani (Quercus infectoria) and asam kanis (Garcinia xanthochymus) (postnatal maternal care), ayau (Litsea sp) (baby poultice), kumis kucing (Orthosiphon aristatus), and coconut (Cocos nucifera) (fever in infants), jackfruit (Artocarpus heterophyllus) (treatment of baby's umbilical wound), lidah buaya (Aloe vera) (baby haircare), mengkudu (Morinda citrifolia) (stomachache and bloating in infants), as well as pisang (Musa sp) and cangkok manis (Sauropus androgynus) (enhance mother breast milk). Conclusions from the results of the study indicate that the people of Tanjung Merpati Village have local knowledge regarding postpartum and infant care, and this knowledge is still well maintained in the community.
Effect of Calcium Carbonate Addition on The Growth and Feed Conversion Ratio of Gourami (Osphronemus goramy) Seed Dewi Nur'aeni Setyowati; Anita Prihatini Ilyas; Awan Dermawan; Sanca Rahmatullah
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.v22i1.3211

Abstract

Gourami is one of the main freshwater fish commodities which has a high economic value. One of the efforts that can be made to increase the productivity of gourami is the provision of macromineral in the form of calcium carbonate (CaCo3). This study aimed to determine the effect of calcium on productivity that would be seen through the growth rate and feed conversion ratio of gourami seed. The study consisted of five doses of calcium carbonate, each of which was repeated three times. As for treating the doses of calcium carbonate, including 1 (0 mg / L CaCO3), 2 (150 mg / L CaCO3), 3 (200 mg / L CaCO3), 4 (250 mg / L) CaCO3) and 5 (300 mg / L CaCO3). The maintenance medium is added with a salinity of 3 ppt in order to save metabolic energy through an osmoregulation mechanism so that the available energy is expected to be used to increase growth. The result or absolute weight growth was not significantly different based on the analysis of variance and linier regression analysis. The analysis of variance showed that no significant different for survival rate of all treatments. The value of feed  conversion ratio was not significantly different based on analysis of variance and linier regression analysis. Addition of calcium carbonate did not give significant difference in the absolute weight growth, survival rate, and feed conversion ratio of gourami seed.
Species Richness of Arboreal Beetle in Suranadi Nature Park Area and Its Potential as a Source of Science Learning in Elementary Schools Mohammad Liwa Ilhamdi; Muhammad Syazali
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.v22i1.3225

Abstract

The beetle data in Suranadi Nature Park is still limited to species that move on the ground. This study aims to analyze: (1) the species richness of the arboreal beetle, and (2) its potential as a science learning resource in elementary schools. This type of research is descriptive research using a qualitative approach. Sampling was carried out on the type of habitat in Suranadi Nature Park, namely the forest area with rice fields and residential areas, air flow and the middle with a dense canopy. The collected samples were identified to determine the species. The richness of this species data is then analyzed qualitatively to determine its potential as a source of science learning in elementary schools. This is done by comparing the species richness data of beetles and elementary thematic books, then the topics are assessed according to their level. The results showed that the species richness of arboreal beetles in Suranadi Nature Park consisted of 19 species from 5 families. The species are Lema sp., Aulacophora similis, Aulacophora quadrimaculata, Aulocophora sp.1, Aulocophora sp.2, Aulocophora sp.3, Aulocophora sp.4, Aulocophora sp.5 Parchicola sp., Podontia sp., Altica cyanea and Lilioceris sp. (family Chrysomelidae), Mimela sp., Mimela langbianica (Rutelidae), Exopholis hypoleuca, Ontophagus taurus, Protaetia fruhstorferi (Scarabaeidae) and Leptura sp. (family Cerambycidae). This arboreal beetle species data may be used as a source for elementary science learning on 33 sub-themes. Of this number, there are two sub-themes that have very appropriate categories, namely Sub-theme 2 The diversity of living things in my environment and Sub-theme 1 Components of the ecosystem.
The Effect of Lemongrass Stem (Cymbopogon citratus) and Salam Leaves (Syzygium polyanthum) Ethanol Extracts on The Number of Bactrocera Fruit Flies Catches Yunisa Sucitra; Syamsul Bahri; I Putu Artayasa
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.v22i1.3237

Abstract

Bactrocera fruit fly (Diptera: Tephritidae) is one of the important pests in horticulture which is very detrimental. Lemongrass stems and salam leaves are be able used as vegetable attractants in controlling fruit fly pests. This study aimed to determine the effect of lemongrass (Cymbopogon citratus) and salam leaves (Syzygium polyanthum) ethanol extract and their mixtures on the number of catches of Bactrocera fruit flies and to determine the effect of the concentration of lemongrass (Cymbopogon citratus) and salam leaves (Syzygium polyanthum) ethanol extract and their mixtures on the number of catches of Bactrocera sp. The experimental design used in this research was a Randomized Block Design (RBD). The collected data were analyzed by F test two-way analysis at 95% significance level, followed by Honest Significant Difference Test (HSD) at 95% significance level. The results showed that the use of traps containing ethanol extracts of lemongrass stems and salam leaves and a mixture of the two had succeeded in catching two strains of fruit flies, namely Bactrocera albistrigata (97 individuals) and Bactrocera carambolae (32 individuals), while traps without these extracts failed to catch Bactrocera fruit flies. It is concluded the treatment of lemongrass stems (Cymbopogon citratus) and salam leaves (Syzygium polyanthum) ethanol extract, and their mixtures significantly effect on the number of Bactrocera fruit fly catches, while the treatment with different ethanol extract concentrations of 35%, 45%, and 55% has no significantly effect on the number of Bactrocera fruit fly catches.
Phytochemical test of several eco-handsanitizer candidates Ratna Dewi Eskundari; Tri Wiharti; Nur Rokhimah Hanik; Fety Fatimah; Umi Salamah; Antik Murwani
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.v22i1.3258

Abstract

Ecoenzymes are natural ingredients formed from the fermentation of fruit and or vegetable residues that have many benefits. One of the benefits of ecoenzymes is that they can be used as eco-handsanitizers; which can be used as a candidate for handsanitizer for those who are allergic to alcohol-based handsanitizer. This study aims to determine the pH, antibacterial, antiviral, and antifungal content of the candidate eco-handsanitizer solution through alkaloid, flavonoid, and saponin test, also fungal-inhibition test. The candidate eco-handsanitizer solution was made from an ecoenzyme solution derived from fruit or vegetable residue and added with aloe vera gel and vitamin C or E. The results showed that eco-handsanitizer candidate solution derived from ecoenzyme solution with a dilution of 1:500 or 1:4 and added with aloe vera and vitamin E had a pH that tends to be acidic after 5 weeks of manufacture. The candidate eco-handsanitizer solution contained alkaloid compounds up to 2nd week for 1:500 dilution or up to 5th week for 1:4. Fungal test also showed positive results of one of the treatments in inhibiting fungal growth until the 11th day. These results were expected to be used as guidelines for further research, such as quantitative and qualitative tests for more sensitive alkaloids, for example using GC-MS. 
Diversity of Annelida Worm as a Bioindicator of Water Quality in Unus Estuary, Mataram Lombok Husnayati Hartini
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.v22i1.3262

Abstract

Condition of river is strongly influenced by the characteristics and the surrounding environment. Unus River is one of the rivers in Mataram City that flows throughout the year. The flow of the Unus River is used by residents for irrigation purposes, household waste disposal, market waste, industrial waste and so on. The purpose of this study was to determine annelida diversity index and to determine chemical and physical conditions of waters. The study was conducted by dividing into 10 stations by stratified random sampling. Physical and chemical parameters measured were pH, temperature, DO, BOD, C Organic, depth and turbidity. Data analysis is descriptively. The results showed that 6 species found in the estuary of Unus such as Tubifex sp, Branchiura sp, Nereis sp, Lumbriculus sp, Capitella sp and Halobdella sp. Ecosystem conditions are not balanced and there is a tendency to high ecological pressure. Physical and chemistry waters quality are still below the quality standard but there is a tendency DO deficit at each station.

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