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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 89 Documents
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Search results for , issue "Vol. 26 No. 2 (2026): April - Juni" : 89 Documents clear
Zinc (Zn) Accumulation in Mantis Shrimp (Harpiosquilla raphidea) from Sungsang, Banyuasin Syekhan, Ryan; Putri, Wike Ayu Eka; Aryawati, Riris; Barus, Beta Susanto; Agustriani, Fitri; Melki, Melki
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.v26i2.11522

Abstract

The Sungsang area in the Musi River estuary is an important fishing ground that is potentially exposed to zinc (Zn) contamination due to intensive anthropogenic activities. This study aimed to analyze Zn accumulation in mantis shrimp (Harpiosquilla raphidea) and to evaluate its consumption safety. Samples were collected from local collectors and analyzed using flame atomic absorption spectrophotometry in accordance with SNI 2354-13:2014. The results showed that Zn concentrations ranged from 20.24 to 21.27 mg/kg, with an average of 20.70 mg/kg, remaining below the maximum permissible limit established by Dirjen POM (1989). Risk assessment based on estimated intake indicated that Zn exposure from mantis shrimp consumption is within safe limits for humans. Overall, these findings confirm that mantis shrimp from Sungsang are safe for consumption with respect to Zn contamination. This study provides scientific evidence for food safety assessment and underscores the need for continuous monitoring of heavy metal contamination to support sustainable coastal resource management.
Exploring Antidiabetic Properties of Stingless Bee Pollen and Kasturi Mango (Mangifera casturi) Leaves: Comparative Review Khalifah, Chantika Noor; Kustiawan, Paula Mariana
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.v26i2.11550

Abstract

The absence of a comparative biochemical analysis between stingless bee pollen and Mangifera casturi leaves prevents the optimization of their synergistic potential in diabetes management. This study aims to evaluate the bioactive profiles and compare the antidiabetic mechanisms of these dua natural products. The investigation utilized a systematic literature review by retrieving peer reviewed articles from PubMed, Scopus, ScienceDirect, and Google Scholar. The selection process followed the PRISMA 2020 framework to ensure a transparent and reproducible screening of literature. Data analysis involved a comparative thematic synthesis to evaluate the correlation between phytochemical groups and glycemic control. Results demonstrate that both materials share homologous flavonoid compounds that improve insulin sensitivity and mitigate oxidative stress. Stingless bee pollen provides superior pancreatic β cell protection while Mangifera casturi shows higher inhibition of carbohydrate hydrolyzing enzymes. This study concludes that both materials offer significant antidiabetic efficacy through complementary molecular pathways. These findings provide a scientific foundation for the development of evidence based complementary medicine. Future research should prioritize clinical trials to determine the optimal dosage for human application.
Physical and Chemical Characteristic Analysis of Liquid Organic Fertilizer from Chicken Manure and Mustard Greens Waste Delyani, Rista; Fakhrudin, Jaini; Ali, Muhammad; Waruwu, Lisnawati; Putriana, Putriana
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.v26i2.11663

Abstract

Liquid organic fertilizer (LOF) can be made from organic waste. The purpose of this study was to determine the physical and chemical characteristics of liquid organic fertilizer made from chicken manure and mustard green waste. This study used a Completely Randomized Design with 5 treatments of combinations of the amount of mustard green waste and chicken manure as follows: P1: Chicken manure 1000 g, P2: Mustard green waste 750 g, P3 Chicken manure 500 g + Mustard green waste 500 g, P4: Chicken manure 250 g + Mustard green waste 750 g and P5: Chicken manure 750 g + Mustard green waste 250 g. The results showed that in 45 days the LOF produced had the following physical characteristics: temperature ranging between 27-29.38 °C, foul-smelling aroma, and color varying from yellowish green to black. In addition, the chemical characteristics were as follows: pH values ranged from 5.53 - 7.96, the content of macro nutrients (N + P2O5 + K2O) ranged from 0.2-0.8% and C-organic was between 0.5-0.8%. Most of the character did not meet the minimum technical requirements by the Ministry of Agriculture Decree number 261 of 2019. Further studies are required to determine better composition of organic matters.
Intermitten Fasting and Caloric Restriction in Adults: Differential Effect on Cognitive Function and Neurobiological Outcomes: A Systematic Review Marviano, Fajri Ramadhan; Apriyelita, Annisa
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.v26i2.11794

Abstract

Intermittent fasting (IF) and caloric restriction (CR) represent dietary strategies based on energy intake limitation that have been widely investigated for their potential benefits on metabolic processes and brain performance. This systematic review aims to evaluate the relationship and effects of IF and CR on cognitive function and neurobiological outcomes related to brain inflammation in adult populations. Literature retrieval was carried out through the PubMed and ScienceDirect databases using inclusion criteria structured by the PICOS framework, resulting in 10 eligible studies. The analysis showed that several studies reported improvements in cognitive function following IF/CR interventions, which were thought to be associated with enhanced neurogenesis and reduced inflammatory markers. However, several other studies found no significant differences compared with the control groups, which may have been influenced by the relatively short duration of the interventions, limitations in cognitive assessment methods, and the relatively healthy characteristics of the study populations. Therefore, the neurobiological mechanisms underlying the effects of these dietary interventions cannot be fully explained. In summary, IF and CR show promise as nutritional interventions to promote cognitive function in adults; however, the current body of evidence is still heterogeneous, highlighting the need for future studies employing more rigorous methodologies and extended intervention durations.
Insect Diversity and Dominance on Malay Apple (Syzygium malaccense L.) Plantation at Liwa Botanical Garden, West Lampung, Indonesia Lukvitasari, Luna; Saputra, Ari; Fitriana, Yuyun; Hendra, Jon
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.v26i2.11830

Abstract

Malay apple (Syzygium malaccense L.) is a tropical fruit species grown in the fruit garden section of Liwa Botanical Garden, West Lampung, Indonesia. Insect communities play an important role in agroecosystems because they consist of both pest species and beneficial organisms such as predators and parasitoids. This study aimed to determine insect diversity and dominance on Malay apple plantations in the Fruit Garden of the Regional Technical Implementation Unit (UPTD) of Liwa Botanical Garden. The observation was conducted from September to October 2021 using direct observation, pitfall traps, and yellow sticky traps across five sampling plots arranged diagonally. Insect identification was conducted based on morphological characteristics using relevant literature. Species diversity was evaluated using the Shannon–Wiener diversity index (H’), while dominance was measured using Simpson’s dominance index (C). A total of 1,594 insect individuals belonging to nine orders were recorded, including Diptera, Hymenoptera, Orthoptera, Hemiptera, Coleoptera, Lepidoptera, Dermaptera, Odonata, and Neuroptera. The diversity index (H’) was 1.44, indicating moderate diversity, while the dominance index (C) was 0.43, suggesting low dominance. Diptera was the most abundant order, dominated by fruit flies (Bactrocera dorsalis and Bactrocera cucurbitae). The results indicate that the insect community structure in the Malay apple plantation is relatively balanced, although fruit flies have the potential to become major pests. Increasing plant diversity through flowering plants (refugia) is recommended to support beneficial insect populations and maintain ecosystem stability.  
Public Response to Waste from The Rejeki Gangsar Slaughterhouse in Bulurejo Perdana, Riandika Adi; Windyasmara, Ludfia
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.v26i2.11832

Abstract

Slaughterhouse waste is a residual material produced from the process of slaughtering animals in slaughterhouse facilities. This waste can include organic materials, such as blood, offal, bones and leftover meat, which can become a source of environmental pollution if not managed properly. Effective management of RPH waste crucial for reducing environmental impacts and maintaning public health. This study aims to determine public perceptions regarding the impact of slaughterhouse waste on environmental health and public welfare regarding waste around slaughterhouses. The method used in this study is a qualitative method by means of direct observation in the field by conducting a survey at the Rejeki Gangsar Slaughterhouse (RPH) and distributing questionnaires to the community for 30 sample respondents around the RPH which are divided into 2 radii, namely with a distance of less than 100 m and more than 100 m with 15 respondents each. The results of statistical analysis show that the community's response to air quality, the presence of animals that disturb water quality, the impact on health, and the socio-economic impact in this study, the different distances between houses affect the data to be non-significant. In this study, the distance between people's houses is different, so that people's responses are not uniform and are difficult to detect as significant in data analysis.
The Effect of Differences in The Use of EM4 Doses in The Fermentation of Teak Leaves (Tectona grandis) with The Addition of Molasses on Nutrient Content Wahab, Aris Nur; Purwati, Catur Suci
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.v26i2.11853

Abstract

Teak leaves are an abundant waste product, but their use as animal feed is still limited due to their high fiber content and relatively low crude protein content. Their nutritional quality can be improved through a fermentation process. This study aimed to determine the effect of various doses of EM-4 (Effective Microorganism 4) on teak leaf fermentation to obtain the most optimal nutritional content. In this study, the design used was a Completely Randomized Design (CRD) with 4 treatments and 3 replications resulting in 12 treatment combinations. Each of which was divided into treatments P0 (0 ml), P1 (6 ml), P2 (12 ml), P3 (18 ml) and fermented for 14 days. Data were analyzed using analysis of variance (ANOVA), followed by Duncan's Multiple Range Test at a significance level of 5%. The results of the Duncan test showed that with different doses of EM - 4, there was no significant effect on crude fiber, dry matter, and crude protein (P>0.05). Although descriptively, there was an increase in crude fiber and crude protein content, and a decrease in dry matter content with increasing EM4 dosage, these changes were not statistically significant. In conclusion, differences in EM-4 dosage during fermentation did not significantly affect the nutritional content of crude fiber, crude protein, and dry matter.
Analysis of Traders’ Satisfaction with the Quality of Beef Products at the Slaughterhouse of the Department of Food Security, Agriculture, and Fisheries (DKP3), Sragen Regency Yahya, Asykal Fira; Purwati, Catur Suci
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.v26i2.11874

Abstract

The quality of beef products plays an important role in determining trader satisfaction, especially in slaughterhouses that function as providers of safe, healthy, whole, and halal meat. However, several problems related to product quality, such as inconsistent color, fat content, and freshness, may lead to trader dissatisfaction. Therefore, it is necessary to analyze the level of product quality and its effect on trader satisfaction. The purpose of this study was to determine the level of beef product quality and trader satisfaction at the slaughterhouse managed by the Department of Food Security, Agriculture, and Fisheries of Sragen Regency. The research utilized a descriptive quantitative approach through a survey method. Information was gathered via a structured questionnaire featuring a Likert scale (1–5), which was given to 20 beef vendors. The analysis focused on variables such as product quality (including color, texture, marbling, smell, and freshness) as the independent variable and vendor satisfaction as the dependent variable. Data was examined using descriptive statistics along with simple linear regression. Findings indicated that vendors typically held a favorable view of the quality of beef products, as indicated by the prevalence of “agree” and “strongly agree” answers across all measured factors. The statistical analysis showed that product quality had a noteworthy positive effect on vendor satisfaction, indicated by a coefficient of determination (R²) of 0.915, suggesting that 91.5% of vendor satisfaction was affected by product quality. Furthermore, the regression analysis pointed to a significant connection (p < 0.05) between product quality and vendor satisfaction. In summary, the quality of beef products has a major impact on vendor satisfaction at the slaughterhouse. Thus, it is critical to uphold and enhance product quality to guarantee vendor satisfaction and maintain business viability.
Article Review: The Role of Cyrtorhinus lividipennis in Rice Planthoponus Control and Food Security Cahyani, Maulin Eka; Risna, Rafa Aida Ainur; Primadani, Aura Helga; Nugraha, Sultan; Soesanto, Loekas
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.v26i2.11884

Abstract

Rice (Oryza sativa L.) is the primary food source for the majority of the world’s population, particularly in Asia. Leafhoppers are among the primary organisms that damage farmers’ crops, especially rice. Improper control measures, particularly the use of insecticides, can lead to negative impacts such as pest resistance and resurgence; furthermore, the use of insecticides can reduce natural enemy populations. The use of natural predators such as Cyrtorhinus lividipennis serves as an alternative in biological control. This article aims to examine the role of C. lividipennis in controlling brown planthopper populations in rice crops and its impact on food security. The method used was a literature review analyzing various research findings related to brown planthopper population dynamics, predator density, predation rates, and their impact on rice productivity. The results of the study indicate that the presence of C. lividipennis can significantly suppress brown planthopper populations through predation, with predation rates of 50–80%. Predator density is negatively correlated with brown planthopper populations. The impact of this control is also evident in reduced crop damage and increased rice growth and productivity. Thus, C. lividipennis has the potential to serve as a biological control agent to support food security.  
Effects of Incubation Temperature Variation on Embryonic Development Rate, Hatching time, Abnormality and Survival of Larval Sea Urchin Salmacis sphaeroides Putri, Tri Nabila; Junaidi, Muhammad; Gultom, Victor David Nico
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.v26i2.11901

Abstract

Salmacis sphaeroides is a species of sea urchin that plays an important role in economic and ecological aspects. However, high utilization rates by the public have led to a natural decline in population, This is provide a controlled environment that ensures a high-quality supply of sea urchin, reducing dependence on natural stocks. This study aims to analyze the effect of temperature differences on the rate of S. sphaeroides development, hatching rates, abnormality and survival rates of sea urchin embryo maintained by incubation of temperature, consisting of 5 treatments and 3 repeats. The method used in this research was an experimental method using the Complete Randomization Design. ANOVA tests showed that temperature had a significant effect on the hatch resistance, abnormality and survival of sea urchin larvae. Duncan continued testing. The results of research on embryonic development rates, hatching rate, abnormality and survival rates of sea urchins are significantly different. The best development and hatching rate is found at 28℃-30℃, the best abnormality at 28℃ with a value of 15.0±2.3 ᵃ and the best survival rate is also recorded at 28℃ with a value of 79.3±10.1 ᶜ. These results identify that temperatures of 28℃-29℃ can be recommended for sea urchin cultivation, taking into account the balance between egg hatches, abnormality and survival rate of sea urchin larvae.

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