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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
 56   57   58   59   60 
Antibacterial Activity of Extracts of Wild Mango (Mangifera spp.), Ruellia tuberosa L and Leucobryum sp. Causes of Gangrene in Patients with Diabetes Mellitus Rodesia Mustika Roza; Fitmawati; Hari Kapli; Fitra Suzanti
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4339

Abstract

Plants are the main medicinal source that exists around the world, due to the content of bioactive compounds such as flavonoids, alkaloids, saponins, polyphenols, tannins, terpenoids, and essential oils. These bioactive compounds have antimicrobial activity. The purpose of this study was to analyze the antibacterial activity of a combination extracts of Sumatran wild mango (M. sumatrana, and M. foetida var. Batu), R. tuberosa L.  and Leucobryum sp. against bacteria that cause gangrene wounds in diabetics. Preparation of plant extraction is carried out by the method of maceration using 70% alcohol. Testing of antibacterial activity using the disc paper method 6 mm in diameter at an extract concentration of 10% with seven treatments (P1-P7). The test results obtained the largest inhibitory zone diameter against Staphyococcus aureus ATCC 6538 and S. epidermidis ATCC 12228 both shown in combination II extracts at P7 treatment (2:3:1 ratio), 9.04±1.42 mm and 8.85±0.21 mm, respectively. The results of the inhibitory zone resulting from the combination extract test included criteria of resistance to Staphylococcus. In the positive control, the diameter of the chloramphenicol inhibition zone against S. aureus belongs to the sensitive category, but to S. epidermidis it belongs to the resistant category. Combination of methanol extract from wild mango, R. tuberosa L and Leucobryum sp. has the opportunity as the candidate for natural-based antibiotics to replace synthetic antibiotics.
Evidence of Successful Mangrove Conservation Avicennia marina Viewing from Bivalves Diversity in Central Lombok Ulfah Nurkhaeroni; Agil Al Idrus
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.4360

Abstract

Administratively, the coastal area of Central Lombok Regency is included in the mangrove conservation program which is currently in the process of rehabilitation. Shellfish as one of the associated biota that live in the mangrove ecosystem. This study aims to analyze the diversity (H'), uniformity (E), dominance (D), and abundance (R) of associated biota in the mangrove ecosystem conservation area on the south coast of Central Lombok Regency. Data analysis consisted of determining sampling stations, processing mangrove vegetation data, processing bivalve data, and environmental parameters. The results showed that there were nine types of mangroves, 15 types of bivalves were found. The highest density of mangroves in Dondon was Avicennia marina (84.16%) and the highest relative frequency of mangrove species (66.67%). The lowest mangrove density in Gili Perigi was Rhizophora stylosa (3.1%) and the lowest relative species frequency (6.67%). Furthermore, the highest relative frequency in Tanjung Batutiang is Avicennia marina (30.00%) and the lowest is Avicennia lanata (3.33). While the highest relative frequency in Gili Perigi was Avicennia marina (50.00%) and the lowest was Rhizopora stylosa (6.67%). The highest value of the dominance index on the Dondon Coast was 0.84 and was classified as low, meaning that no species dominated. In conclusion, the Indonesian government has initiated many mangrove Rehabilitation programs through replanting, especially on Lombok Island. This study shows that members of the genus Avicennia marina have the potential to increase the growth and stability of mangrove ecosystems on the south coast of Central Lombok.
Toxicity Test of Cat Whiskers (Orthosiphon stamineus) and Miana (Coleus artropurpureus) Leaves Against Artemia salina Leach Using BSLT Surahmaida
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4382

Abstract

Medicinal plants are a good source of therapeutic drugs because they contain phytochemical compounds. Cat's whiskers (Orthosiphon stamineus) and miana (Coleus artropurpureus) are plants that are widely used as herbal medicines. However, there are no studies related to toxicology to ensure its safety. The aim of this study was to determine the toxicity of 96% ethanol extract of cat whiskers and miana leaves to shrimp (Artemia salina Leach) larvae. Toxicity test was carried out using the Brine Shrimp Lethality Test (BSLT) method with 48 hours old Artemia salina shrimp larvae. The concentration of the extract used was 1 ppm, 2 ppm, 3 ppm, 4 ppm and 5 ppm. The results of the toxicity test showed that the 96% ethanol extract of cat's whiskers leaves had an LC50 value of 8.0855 ppm, while the 96% ethanol extract of miana leaves had an LC50 value of 4.7067 ppm. Based on the results of the study, it can be concluded that cat's whiskers and miana leaves have the potential to be developed as candidates for anticancer drugs.
Quantification Methods of Pigments and its Potential As Biomarkers for Estimation of Phytoplankton Biomass Qadar Hasani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4422

Abstract

Pigments and chlorophyll are essential for the process of photosynthesis and are characteristic of each species of phytoplankton. This study aims to provide an overview of the pigment quantification method and its potential to identify and estimate biomass of phytoplankton. A literature review has been carried out to identify methods for the extraction and quantification of phytoplankton. The results of the study found that there are at least two main methods most commonly used for the extraction and quantification of phytoplankton, namely spectrophotometric analysis and HPLC. Spectrophotometric is considered a good and practical method for estimating chlorophyll. However, the HPLC has also become the main method for investigating the taxonomic composition of phytoplankton populations. The researchers concluded that there was no significant difference in results between two methods. Spectrophotometric analysis is much cheaper and faster than HPLC, make it a good tool for routine evaluation of chlorophyll. However, the use of HPLC has been proven to be the most appropriate for determining concentration of various pigments in the community of phytoplankton. Regardless of the various advantages and disadvantages of both methods, a good understanding of each method should be a concern in terms of selecting the method to be used according to its designation.
The Study of Dragonfly (Odonata) Diversity as Bioindicator of Water Quality in Science Techno Park Spring-Beleknehe Village Chatarina Gradict Semiun; Yulita Iryani Mamulak; Emilianus Pani; Stefanus Stanis
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4477

Abstract

Dragonflies are bioindicator insects for the quality of the aquatic environment, especially springs. This study aims to determine the types of dragonflies that live in the Science Techno Park (STP) spring, Beleknehe village, Nekemese sub-district, Kupang District. STP is owned by Widya Mandiri Catholic University. This research was conducted in September 2022. Data collection consisted of dragonfly samples and abiotic factors. Dragonfly samples were obtained using insect nets and hand sorting, while abiotic factor measurements included physical (TDS, DHL) and chemical (hardness, iron, sulfate, Mn, NO3, NO2) parameters. The results of the study revealed that there were four types of dragonflies namely Neurothemis stigmatizans, Coenagrion lunulatum, Megalagrion sp., and Orthetrum pruinosum. The four dragonflies found showed that the quality of the Science Techno Park spring was still in good condition.
Determination of Chlorophyll Levels of Water Kale Plants (Ipomoea aquatica Forkss) Experiencing Nutrient Deficiencies Sumiati; M. Fatih Salsabila; Akmal Surur
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4478

Abstract

The effect of nutrient deficiency on plants can cause a decrease in plant growth and productivity. The decrease in biomass production is related to the decrease in photosynthesis rate caused by the inhibition of chlorophyll synthesis process. This study aims to determine the chlorophyll content of kale (Ipomoea aquatica) that experienced nutrient deficiencies. The type of research used is an experiment using a completely randomized design (CRD) with three replications. The treatment given was the provision of nutrient solutions: complete, -Ca, -S, -Mg, -K, -N, -P, Fe, -Micronutrients, distilled water and water. The solvent used for maceration was DMSO. The parameters observed were chlorophyll a, chlorophyll b and total chlorophyll content of kale leaves. The results showed that the complete solution had the highest total chlorophyll content of 6.387 mg/L. While the distilled water solution has the lowest total chlorophyll content of 2.982 mg/L. The complete solution has all the nutrients needed by plants so that the growth and development process can run optimally, characterized by high chlorophyll content.
Macrofauna Diversity Associated with Mangrove Roots in West Lombok Regency Wahyu Bintang Ilahi; Muhlis Muhlis; Abdul Syukur
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4483

Abstract

Mangrove is an ecosystem that has a wealth of macrofauna, which includes plant species and biota associated therein, gastropods and bivalves associated with mangroves as living habitat, shelter, spawning and food supply. The purpose of this study was to determine the diversity of macrofauna associated with mangrove species. This research is a quantitative descriptive research with a survey method. The results showed that the diversity of gastropods and bivalves on the gastropod Cemara beach was 2.05. Bivalvia 1.22. Meanwhile in Bagek Kembar. Gastropods 1.73 and bivalvia 1.32 have relatively low diversity. The results of the analysis using the contingency table at the study site were 8 pairs from the Gastropod class and 4 pairs from the Bivalvia class, these pairs tended to associate at the 5% test level. The macrofauna and mangrove species pairs obtained had a positive association of 6 pairs, namely (Telescopium -Avicennia lanata, Terebralia sulcata -Avicennia lanata, Cerithideacingulata-Rhizophora mucronata, Cerithidea cingulata-Avicennia marina, Cerithideacingulata-Sonneratia caseolaris, Batillaria zonalis -Rhizophora stylosa) whereas in class bivalves there are 4 pairs (Anadara antiquata -Avicennia lanata, Anadara antiquata -Ceriops decandra, Gafrarium pectinatum -Avicennia lanata, Lutraria lutraria-Rhizophora mucronata). This pair of macrofauna with mangrove species shows a close relationship between the two. For future mangrove planting, it can be used as a benchmark by looking at macrofauna and mangrove pairs that are positively associated.
Bali Cattle Business Competitiveness According to the Moyo Watershed (DAS) in Sumbawa Regency, West Nusa Tenggara Ahmad Yani; Cecep Budiman; Amrullah; Sukarne
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4497

Abstract

The research objectives were: (1) to analyze the cost of domestic resources for Bali cattle according to the business typology and (2) to analyze the efficiency of the Bali cattle business according to the business typology. The research location was the central area of the Moyo Watershed, Sumbawa Regency, with 50 random respondents and key figures: village heads, heads of livestock groups, intermediary traders, inter-island wholesalers, traders of agricultural tools, materials and medicines as well as the livestock and animal health services of Sumbawa Regency. Methods of taking respondents randomly based on business typology with survey methods and analyzed by (1) domestic resource cost analysis (BSD) and (2) Policy Analysis Matrix (PAM) analysis. From the results of the study, information was obtained that bali cattle breeders in the central area of the Moyo Watershed, Sumbawa Regency, West Nusa Tenggara used 3 (three) business typologies, namely: (1) breeding business typology, (2) savings business typology and (3) combination business typology (1+2). Comparative competitiveness of Bali cattle according to business typology as shown by the respective DRCR values, namely breeding typology 0.54; savings typology 0.49 and combination typology 0.32. The competitive competitiveness shown by the PCR value is the breeding typology of 0.49; savings typology 0.59 and combination typology 0.35.
Eugenol Potential in Cloves as an Analgesic: Literature Review Baiq Adinda Aurelia Salsabila; Amira Fathin Nabila Yusuf; Adinda Citra Renda Gading; Anandito Prabuningrat; Mahacita Andanalusia
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4561

Abstract

Clove (Cloves) is a species of the genus Syzygium, family Myrtacea with the Latin name Syzygium Aromaticum L. or Eugenia Caryophyllata, which is usually used as a spice in cooking and traditional medicine. Because it contains many secondary metabolites, cloves are also used as herbal medicine, namely as a drug to relieve toothache and muscle pain, as well as treat digestive disorders, inhibit blood clotting and lower blood sugar. The review group conducted a study search from several online data centers, namely: Pubmed and Google scholar to obtain studies on the potential of eugenol in cloves as an analgesic. Studies that meet the criteria for writing this article are: (1) studies on the pharmacological potency of eugenol; (2) study research design is a type of original research and experimental; (3) the research subjects in the studies used were in vitro and/or in vivo; (4) The outcome reviewed is the role of eugenol as an analgesic. The author also excludes studies that have one or more predetermined criteria, namely: (1) studies conducted and/or published before 2012; (2) studies on humans as research subjects; (3) the full text of the study is not available. Based on the search method above, five articles were selected.
Test of Mercury (Hg) Content in Mozambique Tilapia Fish (Oreochromis Mossambicus) from Lake Rawa Taliwang Nature Tourism Park, West Sumbawa Regency Hadiatullah; Khairuddin; Didik Santoso
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): 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.v23i1.4563

Abstract

Rawa Taliwang Lake Natural Tourism Park is a freshwater waters located in West Sumbawa Regency with an area of ​​819.20 ha. Rawa Taliwang Lake Natural Tourism Park is dominated by various types of fish, so that local people catch fish in this lake to meet their consumption needs and for sale. In addition, the lake's catchment area also holds mining potential, especially gold. Small-scale gold mining, mostly found in the mountains and hills around catchment area Lake Rawa Taliwang. This mining uses liquid mercury as a gold binder from the ore. Some waste that has an impact on the end of lake water so that it can affect the lake ecosystem. Therefore, research is needed to determine the amount of mercury (Hg) in tilapia mozambique fish (Oreochromis mossambicus) from Rawa Taliwang Lake Natural Tourism Park. This study uses a quantitative descriptive method. In this study, sampling was carried out by purposive sampling at 3 location points with 3 repetitions. The research sample used 9 tilapia Mozambique fish. The data obtained were analyzed using the Atomic Absorption Spectrophotometry (AAS) method. The results showed that the mercury content in tilapia mozambique fish was < 0.001 ppm. So it can be said that in the flesh of tilapia fish no heavy metal mercury (Hg) was detected.

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