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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
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The Effect of The Solvent-To-Leaf Ratio in The Extraction Process of Moringa leaves on Erythrocyte and Lecocyte of Tilapia Yadin, Yadin; Abidin, Zaenal; Azhar, Fariq
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8265

Abstract

Tilapia (Oreochromis niloticus) is a freshwater aquaculture fish that has a fairly high economic value among the Indonesian people. The purpose of this study was to determine the effect of the ratio between the number of moringa leaves and the extracting solution in the extraction process on total lekocytes and total erythrocyte of tilapia. The research was designed in a completely randomized design (CRD) with 5 treatments, namely the comparison of the number of moringa leaves and water solvents. The treatments are control (A), without extract), moringa leaves 5 gr + 10 ml solvent (B), moringa leaves 40 gr + 10 ml solvent (C), moringa leaves 70 gr + 10 ml solvent (D), and moringa leaves 100 gr + 10 ml solvent (E). Each solution was added to the feed as much as 50 ml / 30 grams and given to the fish for 16 days. Erythrocytes and leukocytes were counted on day 0, day 1, day 2, day 3, day 7 and day 16. The results showed that the addition of moringa leaf extract solution in feed affect (P<0.05) the total erythrocytes and total leukocytes in the first day until the 16th day of administration. The best observation results were shown in the addition of 5 g moringa leaf extract solution dissolved with 10 ml of water.
Relationship between Stress Level, Body Mass Index (BMI), and Smoking Behavior with Severity of Psoriasis at Hospital X in Central Lombok Region Sajjad, Fiqhan Syauki; Handayani, Wendy; Mariam, Lysa; Mulianingsih, Wiwin
Jurnal Biologi Tropis Vol. 24 No. 1b (2024): Special Issue
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.v24i1b.8266

Abstract

Psoriasis is an inflammatory skin disease of the erythrosquamous dermatosis group, related to autoimmune, chronic and relapsing (recurring) nature influenced by genetic and environmental factors as its pathogenesis. Psoriasis cases are increasingly common, although psoriasis is not immediately life-threatening, it causes cosmetic disorders that greatly affect the quality of life of sufferers. This study aims to determine the relationship between stress levels, Body Mass Index (BMI), and smoking behavior with the severity of psoriasis at Hospital X in Central Lombok. This study employs an observational analytic approach with a cross-sectional design. The data were examined univariately and bivariately. The study found a strong correlation between stress levels and psoriasis severity at Hospital X in Central Lombok (p = 0.002). There is a significant link between BMI and the severity of psoriasis at Hospital X in Central Lombok with a p value of 0.006. At Hospital X in Central Lombok, there is a substantial correlation (p value of 0.000) between smoking behavior and the severity of psoriasis.
Computational Study of N-Hexane Extract of Jotang Herba (Acmella uliginosa) Nabillah, Deya Adiby; Kholifah, Eva; Ahmaddhani, Surya
Jurnal Biologi Tropis Vol. 24 No. 1b (2024): Special Issue
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.v24i1b.8268

Abstract

The study investigates the in silico toxicity of n-hexane extract from Acmella uliginosa (Jotang) herb, a plant widely used in traditional medicine. In silico methods, such as molecular docking, toxicity prediction, and ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) analysis, were employed to assess the potential harmful effects of the extract’s chemical constituents. The primary aim was to evaluate the safety profile of the extract in terms of cytotoxicity, mutagenicity, and organ toxicity. The study used computational tools like Pre.ADMET to predict various toxicological endpoints based on the molecular properties of the compounds identified in the n-hexane extract. The results suggested that while some compounds exhibited low toxicity risk, others showed potential mutagenic or hepatotoxic effects. This in silico approach provides a rapid and cost-effective method for preliminary toxicity assessment, offering valuable insights for further in vivo or clinical studies. The findings underscore the importance of integrating computational techniques into the safety evaluation of herbal medicines.
Association of Inducible Nitric Oxide Synthase (iNOS) Gene Diversity with Immunity Characteristics in Kampung Chicken Muhsinin, Muhammad; Jan, Rahma; Maskur, Maskur; Rozi, Tapaul; Kasip, Lalu Muhammad; Al Farizi, Muhammad Salman
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8296

Abstract

The immune system of Kampung chickens is vital for maintaining health and productivity, especially in combating bacterial infections. Among the genetic components involved, the inducible nitric oxide synthase (iNOS) gene is crucial for producing nitric oxide (NO), a molecule with strong antimicrobial properties. This study investigated the association between iNOS (AluI│g.15056T>C) gene polymorphism and immune traits in Kampung chickens to enhance disease resistance. Blood samples from 100 Kampung chickens were genotyped using PCR-RFLP, and immune parameters such as leukocyte count, macrophage activity, and bacterial resistance were evaluated. Statistical analysis revealed significant differences among TT, TC, and CC genotypes. The CC genotype exhibited superior performance, including the highest macrophage activity (91.74±1.92%), activated macrophage capacity (2279.49), and bacterial death rate (60.81±3.54%). These findings suggest that the CC genotype enhances NO production, strengthening the immune response to bacterial pathogens like Staphylococcus aureus and Salmonella Pullorum. Additionally, the polymorphism contributes to improved genetic diversity and immune efficiency in Kampung chickens. The study highlights the potential of incorporating the iNOS CC genotype in selective breeding programs to produce chickens with enhanced resilience. Future research should focus on interacting environmental factors with iNOS expression to optimize its application in chicken production.
Identification of Diversity and Genetic Distance of Indonesian Local Chicken Strains Based on Myostatin Gene Muhsinin, Muhammad; Maskur, Maskur; Jan, Rahma; Rozi, Tapaul; Kasip, Lalu Muhammad; Al Farizi, Muhammad Salman
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8297

Abstract

Indonesian local chickens are essential genetic resources with significant potential for advancing the national poultry industry due to their high genetic diversity, reflecting adaptation to tropical environments and traditional farming systems. This study analyzed the genetic diversity of Kampung, Sentul, KUB, SenSi, and Broiler chickens based on the MSTN g.4842T>G locus. Blood samples from 150 chickens underwent PCR-RFLP analysis using the BsrI restriction enzyme targeting exon 2 of the MSTN gene. Parameters such as observed heterozygosity (Ho), expected heterozygosity (He), polymorphism information content (PIC), and Hardy-Weinberg equilibrium were assessed. Genetic distances were calculated using PHYLIP, and a dendrogram was constructed with UPGMA. The study identified two alleles (G and T) and three genotypes (GG, GT, TT), with the T allele being dominant, particularly in Broiler chickens (78.3%). Ho was lower than He in all populations, indicating a heterozygosity deficit. PIC values ranged from 0.282 (Broiler) to 0.367 (SenSi), classifying the MSTN locus as moderately polymorphic. Kampung and KUB chickens showed the closest genetic relationship, while Broiler chickens were the most distinct. These findings underscore the potential of local chickens in breeding programs for adaptability and productivity. Further research with additional markers is recommended to enhance sustainable poultry farming.
Species Identification and Morphometric Analysis of Bats (Chiroptera) in Saung Cave, Pengembur Village, Central Lombok Elwis, Khalid; Syaputra, Maiser; Sari, Diah Permata
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8300

Abstract

Bats play a crucial role in maintaining the balance of ecosystems, particularly in controlling insect populations. This study focuses on identifying the bat species (Chiroptera) in Saung Cave, Pengembur Village, Pujut Subdistrict, Central Lombok Regency, and exploring their morphological characteristics. The research aims to determine the types of bat species found in the cave and their respective morphometric features. Data were collected using the trap method with mist nets. Descriptive data analysis was used to present the data, while quantitative analysis was applied to the morphometric measurements, including body weight, body length, wingspan, ear length, tail length, tragus, and antitragus. The study identified five bat species: Pro-bruk hutan (Rhinolophus affinis), Pro-bruk lonkos (Rhinolophus acuminatus), Kubar Janggut Hitam (Taphozous melanopogon), Lasiwen Biasa (Myotis muricola), and Barong Besar (Hipposideros diadema). The bats found in Saung Cave exhibit varying sizes, with differences between males and females. Notably, males of Pro-bruk hutan (Rhinolophus affinis), Pro-bruk lonkos (Rhinolophus acuminatus), and Lasiwen Biasa (Myotis muricola) tend to be larger than females, while females of Barong Besar (Hipposideros diadema) and Kubar Janggut Hitam (Taphozous melanopogon) are larger than males. This research contributes to understanding bat biodiversity in the Saung Cave area and highlights the ecological significance of these species in controlling insect populations.
Abundance and Distribution of Microplastics in the Waters of Koroe Onowa Village, Wakatobi Regency Basriah, Basriah; Afu, La Ode Alirman; Emiyarti, Emiyarti
Jurnal Biologi Tropis Vol. 24 No. 2b (2024): Special Issue
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.v24i2b.8320

Abstract

The waters of Koroe Onowa Village, Wakatobi Regency, are at risk of plastic waste contamination due to human activities on land that are carried by currents into the waters. Plastic waste is very dangerous for the health of the aquatic environment, especially marine biota, because the accumulation of microplastics over a long period of time can interfere with the respiratory and digestive tracts of marine biota, and has the potential to harm human health. For this reason, research on microplastics in these waters is needed. This study aims to analyze the abundance and distribution of microplastics in the waters of Koroe Onowa Village. Microplastic sampling was carried out using a modified plankton net method, which was then identified based on the type of microplastic. The results of the study showed that there were four main types of microplastics identified, namely fragments, films, fibers, and pellets, with an abundance ranging from 3.2 to 8.86 particles per liter. Station III, which is a coastal tourism area with dense human activity, showed the highest abundance value, namely 8.86 particles/liter. The results of this study provide an initial overview of the threat of microplastic pollution in the waters of Koroe Onowa and form the basis for better monitoring and waste management efforts in the area, as well as the need for mitigation measures to protect marine ecosystems and ensure the sustainability of coastal resources.
Behavioral Patterns and Honey Yield Between Native and Non-native Stingless Bees in Bali's Ecosystem Wahyudi, I Wayan; Suardana, Anak Agung Komang
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8323

Abstract

The coronavirus disease 2019 (COVID-19) pandemic has led to significant growth in honey bee cultivation in Bali, leading to the introduction of nonnative bee species alongside the indigenous Tetragonula laeviceps. However, the 75% failure rate of nonnative species cultivation between 2020 and 2023 necessitated a deeper understanding of species adaptability in the Bali ecosystem. This study specifically examined the behavioral adaptation and honey production of Heterotrigona itama compared with those of Tetragonula laeviceps in a shared cultivation environment. A seven-month comparative experimental study involving 30 bee colonies (15 H. itama introduced from Lampung and 15 local T. laeviceps) was conducted. Time series sampling was employed at three daily intervals (09:00, 13:00, and 16:00) for behavioral observations, while honey production was measured via nondestructive vacuum extraction. H. itama demonstrated superior honey production (516.3 ml average) to that of T. laeviceps (213.3 ml average). The species exhibited distinct foraging preferences, with T. laeviceps favoring Jatropha integerrima and H. itama preferring Antigonon leptopus and Xanthostemon chrynsanthus. Both species have developed different adaptive strategies for nectar–water content management, with H. itama utilizing sun exposure and T. laeviceps employing smaller storage pots. This study revealed successful coexistence between native and nonnative species through differentiated foraging behaviors and resource utilization strategies, with H. itama showing greater productive capacity attributed to morphological and behavioral differences.
Relationship Between Age, Coffee Consumption and Smoking with The Incidence of Gastro Esophageal Reflex Disease (GERD) Putri, Annisa Zahara; Pramana, Kadek Dwi; Wulandari, Made Ayu Mirah; Khairunnisai, Khairunnisai
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8324

Abstract

One of the most prevalent illnesses in the world is gastroesophageal reflux disease, or GERD. In addition to sleep patterns, eating habits, such as the amount and timing of meals, as well as the acidity of food, can also lead to GERD. The purpose of this study is to investigate how smoking, coffee intake, and age relate to the prevalence of GERD in the province of NTB, particularly in West Lombok Regency. This study used a quantitative approach and a cross-sectional study design. The Chi Square test was employed for statistical analysis after univariate and bivariate data analysis. The results showed that 52% of respondents were women and 48% of respondents were men. 67% of respondents claimed not to have GERD, while 33% reported having it. There is a substantial correlation between age, coffee consumption, and smoking and the occurrence of GERD at Patut Patuh Patju Hospital in West Lombok. The Patut Patuh Patju Hospital in West Lombok has concluded that smoking, coffee use, and age are associated with GERD.
Relationship Between Waist Circumference, Smoking, and Physical Activity with Hypertension at Lenek Community Health Center Fikri, Lalu Muhammad Farros; Utama, Lalu Buly Fatrahady; Rinayu, Nisia Putri; Ariyanto, Suwondo
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8325

Abstract

Non-Communicable Diseases (NCDs), including hypertension, are a major problem and cause of premature death in developing countries. Data on hypertension in NTB is 282,970 with the most sufferers in East Lombok Regency. Non-modifiable hypertension risk factors include age, gender, and heredity, as well as modifiable risks include smoking, alcohol use, obesity, nutrition, and physical activity. The purpose of this study at the Lenek Health Center is to evaluate the link between waist circumference, smoking, and physical activity with hypertension. This study employs a cross-sectional approach and is observational quantitative analytical in nature. Purposive sampling is done using the Slovin formula. This study's sample size was 106 samples. The data was examined using the chi-square test. The findings revealed 106 respondents, the majority of whom had hypertension (74 people, 69.8%), while 32 people (30.2%) did not have hypertension. There is a substantial correlation between waist circumference and hypertension (p = 0.001). Smoking is significantly associated with hypertension (p=0.001). There is a strong link between physical activity and hypertension (p=0.001). The conclusion is that waist circumference, smoking, and physical activity all influence the prevalence of hypertension at the Lenek Health Center.

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