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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 2,520 Documents
 132   133   134   135   136 
Population Dynamics of Yellowstripe Scad (Selaroides leptolepis) in Lampung Bay Waters Kartini, Nidya; Yudha, Indra Gumay; Yulianto, Herman; Caesario, Rachmad; Julian, David
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7578

Abstract

Yellowstripe scad (Selaroides leptolepis) is a type of pelagic fish that is dominantly caught in the waters of Lampung Bay and is landed at the Lempasing Coastal Fisheries Harbor. The high market demand for yellowstripe scad means fishing for this fish is carried out throughout the year. The aim of this research was to analyze the population dynamics of yellow trevally (Selaroides leptolepis) in the waters of Lampung Bay. The yellow trevally fish collected during the research came from fishermen's catches in the waters around Lampung Bay. The study's findings demonstrated that the yellow trevally's development pattern was negative allometric, and its condition factor value varied between 0.7509 and 1.0842.  the growth parameters of yellowstripe scad obtained an asymptotic length (L∞) value of 152 mm, the growth coefficient (K) of 0.57/year, and theoretical age (t0) of -0.2191 years. Yellow trevally have a natural mortality value (M) of 0.80 per year, a fishing mortality value (F) of 1.12 per year, and a total mortality value (Z) of 1.92/year. Yellowstripe scad recruitment peaked in the Sunda Strait between May and September, at 18.19% and 13.90%, respectively.
Estimation of Carbon Reserves Above Soil Surface in Agroforestry Patterns in Mount Sasak, West Lombok District Antareja, Gde Margin; Wahyuningsih, Endah; Valentino, Niechi
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7583

Abstract

The increase in greenhouse gases will affect the level of global warming, which is one of the factors causing climate change. The greenhouse gas that has the biggest impact on increasing Earth's temperature is carbon dioxide (CO2). The method for taking sample plots applied in this research is the systematic sampling method with random start, which is point processing which is carried out in a varied or random manner at the start of data collection and then systematically with the distance between plots being balanced. Determining the number of sampling plots refers to the National Forest Inventory (IHN) which states that the minimum limit accepted for sampling intensity is 1%. Therefore, the use of higher sampling in a study will increase the level of accuracy. The reason why candlenuts have a high biomass value is because the average diameter is larger than other types, namely more larger than 35 cm and if the density of Candlenut has a high value this will affect the biomass value to be even higher. This is in accordance with, It is said that tree biomass is calculated using the allometric equation. The carbon value and biomass value of trees will weaken closely, the greater the biomass value, the higher the carbon value. This is due to the stipulated value of 47% carbon content and organic material which is the reason behind this. Based on research findings regarding estimates of above-ground carbon reserves on Mount Sasak, West Lombok Regency, there are carbon reserves of 21,954 tonnes/ha and overall biomass of 46,719 tonnes/ha.
Exploring Potential Aquaculture-Immunostimulant-Peptides Derived from Chlorella sorokiniana Safitri, Nur Maulida; Violando, Wiga Alif; Suhermanto, Achmad; Rizkiah, Riza; Mukhaimin, Iman; Ramli, Taufik Hadi; Puspitasari, Asthervina Widyastami; Zummah, Atiqoh
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): 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.v24i3.7585

Abstract

Chlorella sorokiniana is a microalgae with an outstanding nutritional profile and numerous therapeutic substances that can be used as an immunostimulant, including in aquaculture. This research aimed to investigate and characterize peptides isolated from C. sorokiniana protein using TCA digestion and hydrolyzed enzymatically with trypsin. Peptides were then subsequently identified using Tandem LC-MS/MS and Mascot Distiller. Results showed that the percentage of pure protein yield following TCA digestion was 54.66%, and 12 peptides with lengths ranging from 7 to 23 sequences were discovered after trypsin digestion. These peptides originated from various enzymes and chloroplast proteins, including protein synthesis elongation factor TU, photosystem I iron-sulfur center, photosystem II 43 kDa, Ycf4, ATP-dependent zinc metalloprotease FtsH homolog, nitrate reductase, chloroplastic glucose-6-phospate dehydrogenase, and ATP synthase CF1 alpha chain. These findings demonstrated that C. sorokiniana might serve as a source of immunostimulant peptides and proteins, particularly for aquaculture biota.
Diabetic Retinopathy: A Literature Review Maulida, Rizka Ayu; Afifah, Fiza
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7589

Abstract

Diabetic retinopathy is a complication of diabetes mellitus characterized by visual impairment and potentially blindness. This literature review aims to enhance knowledge about diabetic retinopathy. Sources for this review were gathered through online databases and include review articles, research studies, and professional guidebooks related to the topic. Hyperglycemic conditions associated with diabetes mellitus trigger angiogenesis and inflammatory pathways, leading to diabetic retinopathy. The condition is classified into two types: non-proliferative diabetic retinopathy and proliferative diabetic retinopathy, with management strategies varying depending on the type. As the prevalence of diabetes mellitus increases, so does the expected incidence of diabetic retinopathy, highlighting the need for effective prevention strategies, which include both primary and secondary prevention.
Efficacy of Some Essential Oils that Have The Potential as Vegetable Feromones in Heterogeneous Croping Using The Trap Method Erfandari, Ovy; Hamdani, Hamdani; Wahyuningsih, Eka
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7594

Abstract

The use of pheromones as traps is often used to control various pest. Pheromones that are widely used today usually contain chemical ingredients which in the long term can certainly affect the environment and pest populations the. Pheromones made from essential oils are not widely used controlling pests. In order to formulate and apply the IPM concept it is necessary Testing the efficacy of several combinations of essential oils that have the potential to act as pheromones was carried out vegetable crops to implement pest control based on Integrated Pest Management (IPM). It is hoped that it will be possible to use pheromones derived from essential oils means in the process of controlling pests on plantation crops and commodities other plants and can also be integrated with pest control methods other integrated (PHT). This research was conducted using a randomized design complete (RAL) consisting of 6 (six) treatments which were repeated 3 times. Thus there are 18 (eighteen) experimental sample points. Treatment consists of use of vegetable pheromones derived from patchouli oil, cinnamon oil, oil nutmeg, clove oil, control (water) and combination (all treatments). Research data which was analyzed using Analysis of Variance (ANOVA) followed by a Real Difference test The smallest (BNT) with a significance level of 5% shows that patchouli oil has potential as a vegetable pheromone because it can trap 85 insect/non-insect organisms insect. Based on the results of identifying trapped organisms, insects from the order Diptera were the most dominant in each treatment.
Formulation of Tembelekan Leaf Hand Sanitizer (Lantana camara L.) and Antibacterial Activity Test Against Escherichia coli and Staphylococcus aureus Fauzi, Ziza Putri Aisyia; Putri, Cut Intan Annisa; Aska, Nawalul; Utami, Dinda Sari
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): 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.v24i3.7595

Abstract

Disease-causing microorganisms stick to hands every day through physical contact with the environment. One of the easiest and most appropriate ways to clean them is to wash hands with soap and clean water. This study aims to determine the formulation of tembelekan leaf hand sanitizer (Lantana camara L.) and test its antibacterial activity against Escherichia coli and Staphylococcus aureus. Assessment of the arrangements acquired incorporates organoleptic tests with libertine tests, homogeneity, pH, spreadability, dependability, bothering to chip in skin, and antibacterial movement against Staphylococcus aureus and Escherichia coli by agar dispersion utilizing poke holes. The outcomes showed that the hand sanitizer readiness containing 10% tembelekan leaf remove was the best planning since it was liked by specialists, stable when put away at room temperature for a very long time, didn't cause bothering, and had solid antibacterial movement so that the tembelekan leaf gel planning utilized as a characteristic natural substance can be utilized to clean hands from microscopic organisms that is simple, reasonable and protected to use without utilizing water.
The Relationship of Gender with The Incident of Otosclerosis Based on Ear Location at The Medismart Clinic, Mataram City Azmy Mujahid, Sabila Izzatina; I Gusti Ayu Trisna Aryani; Herpan Syafii Harahap; Hamsu Kadriyan
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7597

Abstract

Otosclerosis is a hearing loss disease with abnormal bone growth in the middle ear. The purpose of this study was to determine the relationship between gender and the incidence of otosclerosis based on ear location at the Medismart Mataram Clinic in 2012-2020. This cross-sectional study was conducted on 63 otosclerosis patients at the Medismart Mataram Clinic. Sampling using the total sampling technique and data were analyzed using the chi square test. The results of the statistical test showed a p-value = 0.108 in other words the p-value is greater than α = 0.05, so it can be concluded that there is no significant relationship between gender and the incidence of otosclerosis based on ear location at the Medismart Mataram Clinic. Based on the results of this study, it shows that the incidence of otosclerosis in male and female patients is not much different, the number, although women are slightly higher. So it is recommended that there is a follow-up to provide the best solution for managing otosclerosis at the Medismart Mataram Clinic.
Detection of the oxa-23 Gene, Marker of Carbapenem Resistance in Acinetobacter baumannii Isolates from RSUD Dr. Moewardi Surakarta Dewangga, Vector Stephen; Nirwana, Ardy Prian; Setiyaningrum, Ratna
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7598

Abstract

Acinetobacter baumannii is a pathogenic germ that is a major problem in cases of hospital-acquired infections. The mortality rate for cases of infectious diseases caused by A. baumannii reaches 23% in hospitalized patients. The increase in the incidence of A. baumannii infections is in line with the increase in the incidence of resistance to antibiotics. The oxa-23 gene is known to be one of the causes of carbapenem resistance in A. baumannii. This study aims to detect the presence of the oxa-23 gene that causes carbapenem resistance in A. baumannii isolates originating from RSUD Dr. Moewardi Surakarta. The research was carried out in a descriptive observational, using Polymerase Chain Reaction (PCR) and electrophoresis techniques, using 20 clinical isolates of A. baumannii obtained from the RSUD Dr. Moewardi. From this research, results were obtained for 8 clinical isolates of A. baumannii from Dr. Moewardi was detected positively as having the oxa-23 gene, so it can be concluded that 40% of the total samples of A. baumannii isolates from RSUD Dr. Moewardi Surakarta was detected to have the oxa-23 gene which causes carbapenem resistance.
Article Review: Pharmacological Activities of Renggak Plant (Amomum dealbatum Roxb.) Cahyani, Dina Fathia; Hidayati, Agriana Rosmalina
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7599

Abstract

The renggak plant (Amomum dealbatum Roxb.) is a native plant of Lombok Island that belongs to the Zingiberaceae family and is traditionally used as a remedy for coughs, diarrhea, arthritis, and eye washes. Ethanol extract from the renggak fruit is reported to contain secondary metabolites such as flavonoids, tannins, terpenoids, alkaloids, steroids, saponins, polyphenols, and several other types of fatty acids, which have various pharmacological activities. This review article aims to provide information on the various pharmacological activities of the renggak plant, including antidiabetic, antiurease, antioxidant, antibacterial, and antifungal activities. The method used in this article is a systematic review of various literature sources. Articles were collected using the Google Scholar and PubMed databases with keywords such as Renggak, Amomum dealbatum Roxb., and pharmacological activities. Based on the data results, it can be concluded that the renggak plant (Amomum dealbatum Roxb.) exhibits pharmacological activities as an antidiabetic, antiurease, antibacterial, antioxidant, and antifungal agent.
Standardization of Non-specific Parameters of Honey from Farmed Bees in Tojo Una Una Islamiati, Utami; Parobe, Alda Iglesias; Yanuarty, Rezky; Tandi, Joni
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - 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.v24i4.7602

Abstract

Honey is a normally sweet arrangement delivered by bumble bees from nectar sources. In the use of honey as an herbal ingredient, however, not all honey in Indonesia has been standardised, so it is necessary to confirm the quality of honey that meets the reference standards set by the government, namely SNI. The purpose of this study was to determine the quality of honey in Tojo Una-una Regency from three different sub- districts: Ampana Tete, Ampana Kota, and Ratolindo, based on standardization using non-specific test parameters. This study used pure honey and honey extract using 96% ethanol solvent. The tests based on non-specific parameters in the form of moisture content were performed by gravimetry, ash content by dry ashing, acidity by titration, and reducing sugar by UV-Vis spectrophotometry, while metal contamination by atomic absorption spectrophotometry, all tests were repeated 3 times. Statistical test results showed that there were significant differences in the quality of honey from three different locations. The results of the research on pure honey and honey extract from Ampana Tete meet the SNI requirements except for the water content test of pure honey which does not meet the SNI.

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