cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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 2,949 Documents
 284   285   286   287   288 
Community-Based Mangrove Conservation Strategies in the Lembar Selatan Ecotourism Area, West Lombok Isrowati, Isrowati; Jupri, Ahmad; Rohyani, Immy Suci; Ahyadi, Hilman
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
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.v26i2.12508

Abstract

Mangrove degradation in Lembar Selatan, West Lombok, threatens ecological functions and community-based ecotourism. This study evaluated site physicochemical conditions, mangrove vegetation structure, community conservation practices, and management strategies. Physicochemical measurements were obtained from 18 water samples collected across the vegetation plots. Mangrove vegetation was assessed in purposively located nested plots (10 × 10 m for trees, 5 × 5 m for saplings, and 2 × 2 m for seedlings). Community participation was explored through in-depth interviews with 10 informants, comprising purposively selected residents and ecotourism managers; qualitative data were analyzed using the Miles–Huberman framework and triangulation. Air and water temperatures ranged from 27.3 to 29.0 °C, pH from 6.9 to 7.39, and salinity from 11.2 to 23.2 ppt, with muddy-sand substrate. Rhizophora mucronata. dominated all growth stages, with IVI values of 200.00% for seedlings, 267.70% for saplings, and 246.03% for trees; Avicennia alba and Sonneratia alba occurred only at sapling and tree stages. Community actions include nursery management, planting, education, and mangrove utilization. SWOT synthesis generated alternatives focused on participatory rehabilitation, institutional coordination, community-based attractions, and ecological differentiation. The findings support diversified, site-matched rehabilitation and transparent stakeholder validation of management priorities.
Difference Between Sucrose and NaCl Flotation Method for Detecting Soil-Transmitted Helminths (STH) Abdul Ghofur; Cici Purnamasari
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12519

Abstract

This in vitro study aimed to compare the detection performance of sucrose and NaCl flotation solutions in detecting Soil-Transmitted Helminths (STH) eggs. A total of 24 pooled stool samples were examined using four treatments: 25% sucrose (specific gravity 1.10), 26% sucrose (specific gravity 1.11), 25% NaCl (specific gravity 1.19), and 26% NaCl (specific gravity 1.20), with six replicates for each treatment. Because the number of eggs found was low, the data were analyzed descriptively using a count data approach based on the positivity rate and the total number of eggs detected. The results showed that in the 25% sucrose, 26% sucrose, and 25% NaCl treatments, no Soil-Transmitted Helminths eggs were found (0/6 replicates; 0%). In contrast, in the 26% NaCl treatment, 3 STH eggs were found in 3 replicates with a positivity rate of 50%, consisting of 2 Ancylostoma duodenale eggs and 1 Trichuris trichiura egg. These results indicate that only the 26% NaCl solution (specific gravity ≥1.20) was capable of detecting Soil-Transmitted Helminths eggs under the conditions of this study. However, the low number of eggs detected is thought to be related to the mild degree of infection, which limited statistical analysis between treatments.
Formulation of Papaya Leaf (Carica papaya L.) Decoction Extract Spray as a Botanical Insecticide against House Flies (Musca domestica) Kiki Arianti Agustin; Surahmaida Surahmaida; Floreta Fiska Yuliarni
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12529

Abstract

The housefly (Musca domestica) is a mechanical vector for various infectious diseases, the control of which is still dominated by synthetic pesticides. This study aims to formulate and test the efficacy of a spray preparation of papaya (Carica papaya L.) leaf aqueous extract with variations in concentration (F1: 20%, F2: 40%, and F3: 60%) against housefly mortality. The experimental design used three replications for each treatment, utilizing a total of 120 houseflies, with 10 flies placed in each test container. A negative control group was included to ensure validity. Observations were conducted every 10 minutes over a 1-hour exposure period, and the collected data were analyzed descriptively. The results showed that an increase in extract concentration was directly proportional to the speed and rate of fly mortality. The negative control showed no mortality (0.00%). The F1 formulation resulted in an average mortality of 43.33%, while F2 and F3 demonstrated very high efficacy at 86.66% and 90.00%, respectively. Based on the killing speed, F3 recorded the highest cumulative mortality within the first 10 minutes (17 flies) compared to F2 (8 flies) and F1 (2 flies). The 40% (F2) and 60% (F3) concentration papaya leaf extract spray preparations possess potential and environmentally friendly insecticidal activity.
Maternal Risk Factors for Neonatal Asphyxia Among Low-Birth-Weight Infants in Kalabahi Lapenangga, Oristha Nelzin; Ob-Adang, Gottfrieda P. Taeng; Jannah, Insani Fitrahulil; Tunggal, Dief
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
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.v26i2.12538

Abstract

Neonatal asphyxia is one of the leading causes of neonatal mortality, particularly among infants with low birth weight (LBW). At Kalabahi Regional Hospital (RSD Kalabahi-Alor), the number of LBW and neonatal asphyxia cases increased during the 2021–2024 period. This condition represents a major health concern because it may result in damage to vital organs and even death if not managed promptly and appropriately. This study aimed to analyze factors associated with the incidence of neonatal asphyxia among LBW infants at RSD Kalabahi-Alor. An observational analytic study with a retrospective case-control design was conducted using medical records of 150 LBW infants during the 2021–2024 period. The sample consisted of 50 cases with neonatal asphyxia (total sampling) and 100 controls without asphyxia (consecutive sampling), with a 1:2 case-control ratio. Data were analyzed using univariate and bivariate analyses (Chi-square test). Bivariate analysis showed that maternal age was significantly associated with neonatal asphyxia among LBW infants (p = 0.022; OR = [insert OR]; 95% CI = [insert 95% CI]). In contrast, maternal parity (p = 0.728), gestational age (p = 0.729), and history of preeclampsia/eclampsia (p = 0.465) were not significantly associated with neonatal asphyxia. These findings indicate that maternal age is significantly associated with neonatal asphyxia among LBW infants. Since only bivariate analysis was performed, the reported association has not been adjusted for potential confounding factors, and no independent risk factors can be concluded from this study. However, maternal parity, gestational age, and history of preeclampsia or eclampsia were not significantly associated with neonatal asphyxia.
Sensory Profile of Fruit Wine Made from Local Commodities: A Case Study on Tomato, Amberella, Pomelo, Tamarillo, and Cocoa Wine Antonia P. Bao; Umbu N. Limbu; Monika M. Meo
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12540

Abstract

Traditionally, wine is produced using grapes as the raw material because their sugar content and natural acidity are very ideal for yeast growth. However, dependence on grapes limits the utilisation of other horticultural potentials, especially in tropical regions rich in local fruit diversity. Diversification of raw materials through the production of fruit wine becomes a strategic alternative to increase the economic value of local commodities while also reducing post-harvest losses. Ngada Regency has a variety of tropical fruits that can be utilised as a strategic alternative for making fruit wine while also increasing the market value of the fruits. The objective of this research is to evaluate and map the sensory profile, including clarity, colour, aroma, and taste, of fruit wine made from five local commodities (tomato, ambarella, pomelo, tamarillo, and cocoa). The method used is an experiment with a Completely Randomised Design research design consisting of 5 fruit type treatments and 4 replications for each treatment. The stages include the preparation of fruit filtrate, fermentation of fruit wine for 14 days, and sensory profile (organoleptic) testing involving 30 untrained panellists. Data were analysed using the One-Way Anova test. The research results show that out of the five types of fruit wines, tomato wine has a very clear level of clarity, with a golden yellow colour, a characteristic tomato and alcohol aroma, and a taste of alcohol with a slight sweetness. The Anova test indicates a significant difference in the sensory profiles of wines from various local fruits.
Analysis the Quality of Biofertilizers Made from Local Biomass with Variations of Microbial Bioactivators to Support Ngada Regency Organic Agriculture Antonia P. Bao; Umbu N. Limbu; Monika M. Meo; Silverius Betu
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12552

Abstract

In line with Ngada Regency long-term plan to achieve eco-friendly farming/ go organic, the demand for high-quality organic inputs continues to increase. However, that areas still face limitations in the supply of organic fertilizers and the high prices of chemical fertilizers, which hinder the optimization of crop yields. The agricultural, rice milling, local wood processing industries and farm produce abundant biomass like green leaves, dry leaves, rice husks, sawdust, and manure which have not yet been optimally utilized. In fact, the combination of that biomass has a complex nutrient that is potential as a biofertilizer to restore soil fertility. However, lignin and cellulose wood materials such as sawdust and rice husks require a long natural decomposition time, so fermentation technology using microbial bioactivator agents is needed to accelerate the breakdown of these organic materials. The purpose is to analyze the characteristics of the fermentation process on a mixture of the biomass using different types of microbial bioactivators, namely decomposer microbes, local microorganisms from rice soaking, and soil microbes from bamboo roots. The research used fermentation method with a Completely Randomized Design research design and physical quality include temperature, pH, color, aroma, and biofertilizer texture. The results show that all bioactivators successfully decomposed the local biomass mixture within 35 days. The treatment using bamboo root soil microbes showed the best physical quality results with the fastest temperature stability, ideal neutral pH (7.2), dark black humus color, fresh soil aroma, and the finest and crumbliest fertilizer texture.
Cocoa Bean Shell Flour Concentration Affects Cookie Sensory Acceptance Thitin Binalopa; Andi Hermina Julyaningsih; Rahman Syam
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12565

Abstract

Utilization of agro-industrial waste as a raw material for functional food is one way to increase product added value while reducing waste. Cocoa bean husk is a byproduct of cocoa processing that still contains dietary fiber and bioactive compounds, making it potentially useful in pastry products. This study aimed to evaluate the effect of adding cocoa bean husk flour on the organoleptic quality of pastries, including color, aroma, taste, and texture. The study used a design with four concentration treatments of cocoa bean husk flour, namely A0 (0%), A1 (5%), A2 (7.5%), and A3 (10%). Organoleptic tests were conducted using a hedonic scale of 1–5 by 15 semi-trained panelists. Data were analyzed using analysis of variance and further tests at a significance level of 5%. The results showed that the addition of cocoa bean husk flour significantly affected the attributes of color, taste, and texture, but did not significantly affect aroma. Treatment A1 (5%) produced the highest taste scores (4.07 ± 0.70) and texture (4.27 ± 0.70) and still had a good level of color and aroma acceptance. Increasing the flour concentration to 10% tended to decrease panelists' preference, particularly for flavor attributes due to increased bitterness, thought to be due to phenolic compounds. The results showed that cocoa bean hull flour has the potential to be used as an additive in cookies, with the best acceptance at a concentration of 5%.
The Suitability of Physical Elements and Visual Landscape Aesthetics in Mataram City Parks: A Scenic Beauty Estimation Approach Tegar Djulfiqar Rafif; Niechi Valentino; Andrie Ridzki Prasetyo
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12574

Abstract

its vision of a harmonious, safe, welcoming, outstanding, and self-reliant city. The utilization of Green Open Spaces (GOS) plays a crucial role in improving quality of life, supporting environmental sustainability, fostering social interaction, and providing support for small and medium-sized enterprises to grow. This study aims to: 1) analyze the suitability of these spaces based on the principles of a sustainable city at Mayura Park, Udayana Park, and Sangkareang Park; 2) analyze the aesthetic quality of Mayura Park, Udayana Park, and Sangkareang Park. Using a deductive approach with quantitative research methods, this study examined Mayura, Udayana, and Sangkareang Parks as samples of Mataram’s urban parks and found that elements such as vegetation, biodiversity, microclimate, activity variety, sociocultural facilities, accessibility, and nature-based tourism activities align with the concept of sustainable cities. However, aspects related to water management, the utilization of renewable resources, cultural identity, comfort, safety, cleanliness, and economic activities still do not meet the expected criteria. Mayura and Sangkareang Parks demonstrate a moderate level of compliance, while Udayana Park exhibits a high level of compliance. Overall, the suitability of Mataram’s urban parks is still considered moderate, so efforts are needed to improve their quality so that Mataram can become a sustainable, welcoming, and inclusive city.
Effects of Coconut Water, Glycerol, and Storage Temperature on the Viability of Catfish (Clarias sp.) Sperm Restu Gusmanda Putri; Yusni Atifah; Yuni Ahda
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12576

Abstract

The high production of catfish (Clarias sp.) requires a sustainable seed supply, which is frequently constrained by the asynchronous gonad maturity of broodstock. Sperm preservation using young coconut water as a natural extender and glycerol as a cryoprotectant offers a viable solution to address this limitation. This study aimed to analyze the interactive effects of extender formulations and storage temperatures on the viability of catfish spermatozoa after four days of preservation. Semen was extracted by stripping from a single mature male broodstock weighing 3,000 g. The experiment employed a two-factor factorial Completely Randomized Design (CRD). A total of 30 experimental units consisting of 0.2 mL microtubes were used, including 27 units for the factorial treatment combinations and 3 unreplicated control units (100% young coconut water), with one control assigned to each storage temperature. The factorial treatments consisted of two factors with three replications: extender formulation (P1: 75% young coconut water + 25% glycerol; P2: 50% young coconut water + 50% glycerol; and P3: 25% young coconut water + 75% glycerol) and storage temperature (27°C, 5°C, and −20°C). Sperm viability was evaluated using 1% eosin staining and analyzed by two-way ANOVA (α = 0.05). The results showed that storage at 27°C and −20°C caused complete spermatozoa mortality (0% viability) across all extender treatments and the control. In contrast, storage at 5°C produced the highest sperm viability in treatment P1 (82.88%), followed by P2 (65.38%), while P3 and the control exhibited 0% viability. In conclusion, the combination of young coconut water and glycerol stored at 5°C effectively maintained the viability of catfish spermatozoa, with the formulation containing 25% glycerol (P1) identified as the optimum treatment for short-term preservation.
The Role of Banana Corm Local Microorganisms and Irrigation Frequency in Improving Pakcoy Growth under Verticulture Condition Ardi Yoga Pramesthi; A. A. Sudharmawan; Taufik Fauzi
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - 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.v26i3.12580

Abstract

Urban agriculture and verticulture systems have gained increasing attention as strategies to enhance food production in areas with limited land availability. Among leafy vegetables, pakcoy (Brassica rapa L.) is widely cultivated due to its short growth cycle and high market demand. This review examines the potential of banana corm-derived local microorganisms (MOL) and adaptive watering intervals as complementary approaches to improve pakcoy production in verticulture systems. A descriptive literature review was conducted by synthesizing studies related to banana corm MOL, liquid organic fertilizers, irrigation frequency, pakcoy growth, and verticulture-based cultivation. The reviewed literature indicates that banana corm MOL can enhance nutrient availability, stimulate microbial activity, and promote vegetative growth, leading to increased fresh biomass production. Watering frequency was also identified as a key factor influencing plant growth, nutrient uptake, and moisture availability within the restricted rooting environment typical of verticulture systems. The available evidence suggests that interactions between MOL application and watering management may affect pakcoy performance through their combin

Page 286 of 295 | Total Record : 2949

 284   285   286   287   288 

Filter by Year

2013 2026


Reset
Filter By Issues
All Issue Vol. 26 No. 3 (2026): Juli - September Vol. 26 No. 2 (2026): April - Juni Vol. 26 No. 1 (2026): Januari-Maret Vol. 25 No. 4a (2025): Special Issue Vol. 25 No. 4 (2025): Oktober-Desember Vol. 25 No. 4b (2025): Special Issue Vol. 25 No. 3 (2025): Juli-September Vol. 25 No. 2 (2025): April-Juni Vol. 25 No. 1 (2025): Januari - Maret Vol. 24 No. 4 (2024): Oktober - Desember Vol. 24 No. 3 (2024): July - September Vol. 24 No. 2b (2024): Special Issue Vol. 24 No. 2 (2024): April - Juni Vol. 24 No. 1 (2024): Januari - Maret Vol. 24 No. 1b (2024): Special Issue Vol. 23 No. 4 (2023): October - December Vol. 23 No. 3 (2023): July - September Vol. 23 No. 2 (2023): Special Issue Vol. 23 No. 2 (2023): April-June Vol. 23 No. 1 (2023): Special Issue Vol. 23 No. 1 (2023): January - March Vol. 22 No. 4 (2022): October - December Vol. 22 No. 3 (2022): July - September Vol. 22 No. 2 (2022): April - June Vol. 22 No. 1 (2022): January - March Vol. 21 No. 3 (2021): September - Desember Vol. 21 No. 2 (2021): Mei - Agustus Vol. 21 No. 1 (2021): Januari - April Vol. 20 No. 3 (2020): September - Desember Vol. 20 No. 2 (2020): Mei - Agustus Vol. 20 No. 1 (2020): Januari - April Vol. 19 No. 2 (2019): Juli - Desember Vol. 19 No. 1 (2019): Januari - Juni Vol. 18 No. 2 (2018): Juli - Desember Vol. 18 No. 1 (2018): Januari - Juni Jurnal Biologi Tropis vol.17 No.2 Desember 2017 Jurnal Biologi Tropis vol.17 No.1 Juni 2017 Jurnal Biologi Tropis. Vol.16 No.2 Desember 2016 Jurnal Biologi Tropis. Vol.16 No. 1 Juni 2016 Jurnal Biologi Tropis. Vol.15 no.2 Desember 2015 Jurnal Biologi Tropis. Vol.15 No. 1 Juni 2015 Jurnal Biologi Tropis. Vol.14 No. 2 Desember 2014 Jurnal Biologi Tropis. Vol.14 No. 1 Juni 2014 Jurnal Biologi Tropis. Vol.13 No. 2 Desember 2013 Jurnal Biologi Tropis. Vol.13 No.1 Juni 2013 More Issue