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Kota mataram,
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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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Citrus Fruit Morphology in Gede Market Solo as a Learning Resource for Species Diversity Pangestu, Prestiani Yulia; Hanik, Nur Rokhimah
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): 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.v25i4b.11086

Abstract

Biology learning at the high school level requires teaching resources that can connect theoretical concepts with real phenomena so that students gain more meaningful learning experiences. This study aimed to identify the morphological diversity of citrus fruits sold at Gede Market Solo and assess their potential as a locally based biology learning resource. Data collection was carried out through direct observation by randomly selecting 14 types of citrus fruits from several vendors, documenting their morphological characteristics through photographs, and conducting brief interviews to obtain additional information related to each fruit type. The data were then descriptively analyzed based on several morphological indicators, namely, skin color, skin texture, skin thickness, fruit diameter, fruit shape, and flesh color. The results showed that Pasar Gede Solo contains a highly diverse range of citrus fruits with clear morphological variations across categories and species. These variations enable citrus fruits to be used as real objects in identification and classification activities within biodiversity lessons, allowing students to engage in direct observation and understand concepts more contextually. The diversity of citrus fruits also provides opportunities for students to practice scientific process skills through activities such as observation, recording, comparison, and analysis of morphological features. These findings demonstrate that utilizing locally available citrus fruits can enrich biology learning, strengthen conceptual understanding, foster critical thinking, and cultivate students’ awareness of local biodiversity. This study explicitly highlights the use of morphological diversity of citrus fruits in a traditional market as a contextual and locally based biology learning resource, which has rarely been explored in previous biodiversity learning studies.
Comparison of Two Commercial Concentrates on Carcass Percentage and Internal Organs of Broiler Chickens Firmansyah, Bagas Fajar; Sukaryani, Sri
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): 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.v26i1.11088

Abstract

Commercial concentrates have different nutrient formulations, which may potentially affect body tissue growth and the development of internal organs in broiler chickens, ultimately influencing the percentage of carcass parts and internal organs. This study aimed to determine the effect of feeding two different types of commercial concentrates on the percentage of carcass parts and internal organs of broiler chickens. The experimental design used was a Completely Randomized Design with a one-way pattern consisting of three treatments and four replications. The treatments were P1: 100% commercial concentrate A; P2: 100% commercial concentrate B; and P3: 50% commercial concentrate A + 50% commercial concentrate B. The observed variables included the percentages of thigh, wing, and breast parts, as well as the percentages of heart, gizzard, and liver. The obtained data were statistically analyzed using analysis of variance (ANOVA), and when significant differences were detected, Duncan’s Multiple Range Test was applied. The results showed that the percentages of breast and thigh parts among P1, P2, and P3 did not differ significantly; however, the percentage of wing parts in P1 was significantly lower than in P2 and P3. The percentages of heart and liver in P1, P2, and P3 did not show significant differences, whereas the gizzard percentage in P1 was significantly different compared to P3. It can be concluded that feeding two different types of commercial concentrates significantly affected the percentages of wing and gizzard parts but did not significantly affect the percentages of breast, thigh, heart, and liver.
Effect of Ethanolic Extract of Ketip Banana Peel (Musa paradisiaca forma typiaca) Improves Sperm Viability of Mice (Mus musculus) Following Cigarette Smoke Exposure Saputra, Jagat; Bahri, Syamsul; Setiadi, Dadi
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): 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.v25i4a.11089

Abstract

Cigarette smoke exposure is known to induce oxidative stress that adversely effect male reproductive function, including sperm viability. This study aimed to evaluate the effect ethanolic extract of Ketip banana peel (Musa paradisiaca forma typiaca) on sperm viability on mice (Mus musculus) exposed to cigarette smoke. The experiment employed a factorial design with two factors: duration of cigarette smoke exposure (0, 5, 15, and 30 minutes) and concentration of banana peel ethanol extract (0, 250, and 750 ppm). Sperm viability was assessed using standard microscophic evaluation methods. Stastictical analysis revealed that administration of the ethanolic extract significantly increased sperm viability in cigarette smoke exposed mice, as indicated by an F-value (Fcalculatede = 3604.294) exceeding the critical Ftabel value (3.9777790). the results suggest that the ethanolic extract of Ketip banana peel exerts a protective effect against cigarette smoke-induced reproductive toxicity, potentially due to its antioxidant properties. Therefore, Ketip banana peel extract has promising potential as a natural agen for impeoving sperem quality under oxidative stress conditions.
Community Structure and Dispersion Patterns of Macrophytes and Macrozoobenthos in the Intertidal Ecosystem of the Eastern Pananjung Nature Reserve Agustiana, Muhamad Agung Triyudha; Aulia Safira, Nadya; Savhira Noor, Najmy; Noor Fitriansyah, Muhammad
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): 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.v25i4b.11093

Abstract

The intertidal ecosystem of the Pananjung Nature Reserve plays a vital role yet remains vulnerable to environmental pressures and anthropogenic activities. This study aims to analyze the community structure and distribution patterns of macrophytes, as well as their association with macrozoobenthos, on the eastern side of the Pananjung Nature Reserve. The research was conducted using a purposive sampling method employing line transects and quadrat plots. Inventory results recorded low macrophyte diversity (6 species), significantly dominated by the seagrass Enhalus acoroides and the macroalgae Padina australis. Conversely, the macrozoobenthos community exhibited high diversity with 26 species identified, wherein Charonia tritonis (Gastropoda) was the most dominant species. Distribution pattern analysis indicated that the majority of macrophytes were clumped, except for E. acoroides, which exhibited a uniform distribution pattern. This study concludes that E. acoroides functions as an ecosystem engineer; although the vegetation habitat is classified as simple (Margalef Index 0.53), the morphology and distributional stability of this species create complex microhabitats that support high macrozoobenthos diversity (Margalef Index 5.34). These findings emphasize the urgency of protecting key vegetation species to maintain the trophic balance of coastal ecosystems.
The Use of Six Sigma as A Blood Glucose Quality Control Evaluation in UPTD Health Laboratory of Bandung City Wahyu, Cep; Kafes, Ally; Karwati, Siti
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): 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.v25i4a.11096

Abstract

Six sigma is a statistical analysis method that involves calculations through CV, TEa, and bias values that describe the precision and accuracy of the examination. This study aims to analyze the evaluation of blood glucose examination quality control using six sigma at the Bandung City Health Office Laboratory UPTD. This study uses descriptive research to determine the precision, accuracy, and sigma value of the results of quality control of blood glucose examinations on the Cobas C311 Chemistry Analyzer as material for quality control evaluation in clinical laboratories. The results of the study on the accuracy (d%) and precision (CV%) of the quality control of blood glucose examinations on the Cobas C311 Chemistry Analyzer at the Bandung City Health Office Laboratory UPTD are quite good because the values obtained do not exceed the maximum limit. The results of the performance of the Cobas C311 Chemistry Analyzer on blood glucose examinations at the Bandung City Health Office Laboratory UPTD are considered quite good because the TE value < TEa (CLIA) is obtained. The six sigma value of blood glucose examinations on the Cobas C311 Chemistry Analyzer is obtained 3 sigma which indicates "marginal" where the combination of random errors and systematic errors is still tolerable.
Physiological Responses and Agronomic Characters of Local Rice (Oryza sativa L.) Varieties from Rokan Hilir to Salinity (NaCl) Stress Pujiati, Sri; Adiwirman, Adiwirman; Herman, Herman
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): 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.v25i4b.11103

Abstract

Rokan Hilir District, tidal swamp areas have potential for rice cultivation but often experience rising salinity due to seawater intrusion. This study aimed to analyze the physiological responses and agronomic characteristics of two local varieties, Sigudang and Sikuning, under different salinity levels, and to identify inter-parameter relationships associated with varietal tolerance. The experiment using a Completely Randomized Design (CRD) with two factors: local rice varieties (Sigudang and Sikuning) and four salinity levels (0, 2500, 5000, and 7500 ppm), each replicated five times. Data were analyzed using ANOVA at the 5% level, followed by the BNJ test at 5%, and correlation analysis to determine relationships among parameters. The results of the study showed that salinity stress had a significant effect on almost all physiological parameters and agronomic traits, with reductions at the highest salinity level ranging from 22-76%. Correlation analysis revealed very strong relationships (r > 0,80) between physiological parameters and agronomic traits, indicating that reductions in physiological function due to salinity directly contribute to decreased growth and yield. Conversely, days to maturity showed negative correlations with most parameters, indicating that prolonged maturity reflects a stress response rather than an indicator of tolerance.
Effect of Ethanolic Extract of Ketip Banana (Musa paradisiaca Forma Typiaca) Peel on Sperm Morhology in Mice (Mus musculus) Exposed to Cigarette Smoke Ilmi, Muhamad Yazid Mizanul; Bahri, Syamsul; Lestari, Tri Ayu
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): 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.v25i4a.11104

Abstract

Cigarette smoke exposure is known to induce oxidative stress that lead to morphological damage in spermatozoa. This study aimed to evaluate the effect of ethanol extract of Ketip banana (Musa paradisiaca Forma typiaca) peel on the recovery of sperm morphological damage in adult male mice (Mus musculus) previously exposed to cigarette smoke. The experiment was arranged in in factorial design with two factors. The first factor was the duration of cigarette smoke exposure (0, 5, 15 and 30 minutes), while the second factor was the concentration of ethanolic banana peel extract (0, 250, and 750 ppm). Adult male mice were exposed to cigarette smoke for a defined duration and subsequently treated with ethanol extract of banana peel at different concentration. Sperm morphology was assesed microcopically by using standard procedures. The statistical analysis results showed that administration of ethanol extract of banana peel (F-value = 16.949 > F-critical = 3.40) significantly reduced the percentage of abnormal sperm morphology that induced by cigarette smoke exposure ((F-value = 26.324 > F-critical = 3.01). This finding suggest that ethanol extract of Ketip banan peel has the potential  to restore sperm morphological damage induced by cigarette smoke. Thus, the ethanol extract of Ketip banana peel may serve as a natural antioxidant in mitigating cigarette smoke-induced sperm damage. However, further studies are required to elucidate the underlying mechanism.
The Relationship Between Malaria Parasite Density and Anemia Status in Mau Bokul Village, Pandawai District, East Sumba Parera, Maria Albertini Elfrida; Deo, Dwita Anastasia; Jannah, Insani Fitrahulil; Adang, Gottfrieda Patiencia Taeng-Ob
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): 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.v25i4a.11107

Abstract

Malaria remains a major public health problem in eastern Indonesia, and anemia is a frequent complication among infected individuals. Objective: To analyze the correlation between Plasmodium parasite density and anemia status among residents of Mau Bokul Village, East Sumba. This quantitative study employed a cross-sectional design with consecutive sampling and included 194 respondents. Malaria diagnosis was established through microscopic examination of Giemsa 3%–stained thick blood smears, while hemoglobin levels were measured using a digital device. The association between variables was analyzed using Spearman’s correlation test (p < 0.05). The findings showed a malaria prevalence of 4.1% (8/194), while anemia was identified in 17.52% (43/194) of respondents. All malaria-positive individuals were anemic, with a mean hemoglobin level of 7 g/dL, and most were classified as having severe anemia. Spearman’s test revealed a significant negative correlation between parasite density and hemoglobin levels (r = –0.318; p < 0.001), indicating that increasing parasite density is associated with decreasing hemoglobin concentrations. Parasite density shows a positive correlation with anemia status, underscoring the need for strengthened malaria control and anemia management in endemic settings. Recommendations: Integrate routine Hb screening in malaria case management and reinforce vector control and chemoprevention strategies.
Traditional Processing of Moke Arak Based on Palm Sap in Wogowela Village, South Golewa District Limbu, Nataniel Umbu; Bao, Antonia P.; Lea, Victoria C; Lede, Maria F.H.; Kelly, Mario J.; Leweng, Hendrikus A.
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): 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.v25i4b.11112

Abstract

Wogowela Village is one of the villages in Ngada Regency that has many home-based factories producing Moke Arak, where the production process is passed down from generation to generation from ancestors. The purpose of this study is to determine the process of making moke arak from palm sap water, which is done traditionally in Wogowela Village, South Golewa District, as well as the factors that influence its production process. The method used is descriptive exploratory with three data collection techniques: observation, interviews, and documentation. The process of making moke arak in Wogowela Village includes several stages: harvesting palm sap, collecting palm sap, distillation, and storage. Factors influencing the moke arak production process include high rainfall and the level of fire during distillation. High rainfall and unstable flames will reduce the quality of moke arak. The process of making moke arak in the village is done without fermentation. This differs from the process of making moke arak in some other villages in the regency. The results of this study serve as a scientific reference that not all moke arak in Ngada Regency are made thru the fermentation stage.
Comparison of Total Chromium (Cr) Levels in Blood Samples of Conventional Cigarettes and Electric Cigarettes Users Rizki, Andita Ainal; Lestari, Mastuti Widi
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): 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.v25i4b.11126

Abstract

The extensive levels of heavy metals in the environment constitute a significant toxicity hazard to humans. Cigarettes contain heavy metal ions. Cigarettes that are generally consumed by the public are conventional cigarettes and e-cigarettes. In conventional cigarettes, heavy metals come from tobacco, while in e-cigarettes they come from the constituent components and liquids. One of the metal ions found in the two cigarettes is Chromium (Cr). Normal blood Cr levels are below 1.4 μg/L. The purpose of this study is to determine the difference Cr levels in the blood of conventional cigarette users and e-cigarettes. This study used a cross-sectional approach on 11 blood samples of conventional cigarette users and 11 blood samples of e-cigarette users. The level Cr was tested using an Atomic Absorption Spectroscopy (AAS) method. The results of the Cr level obtained by the Mann Whitney non-parametric test obtained a significant value of 0.005 (p < 0.05) which shows that there is a significant difference in Cr levels between the blood of conventional cigarette users and e-cigarettes.

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