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Muhammad Al awali Salahuddin
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Nusa Tenggara Barat Jalan Ketangga Pijot, No.000186 RT. 001 RW. 001, Desa Ketangga Jeraeng, Kec Keruak 83672, KAB. Lombok Timur, Nusa Tenggara Barat, Indonesia.
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INDONESIA
Indenesian Journal of Tropical Biology
Published by Yayasan Siti Widhatul Faeha Salahuddin Sawal
ISSN : 31089801     EISSN : 31090842     DOI : htttp://doi.org/10.65622/ijtb
Core Subject : Health, Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Social Sciences
Indonesian Journal of Tropical Biology (IJTB) is a scientific journal that accommodates the results of basic and applied research in the field of tropical biology. The focus of this journal covers various aspects of biology such as ecology, biodiversity, conservation of biological resources, biotechnology, physiology, genetics, zoology, botany, and microbiology, especially those related to tropical ecosystems. IJTB aims to be a scientific communication forum for historians, researchers, and practitioners in developing science and its application to support tropical ecosystems and biological resources. Published manuscripts can be research results and results that have used scientific methodology standards. Therefore, the Indonesian Journal of Tropical Biology (IJTB) is a peer-reviewed journal published by the Siti Widhatul Faefa Foundation, which is published three times a year (January-April, May-August, September-December) in online and print versions.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 20 Documents
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Butterfly Diversity (Lepidoptera) in The Kerandangan Nature Tourism Park Area Hasita Pebrianti; Harsa Naunik; Putu Linda Agustini; X Zardht Alex Hidayat; Safariyanti Manisa; Sri Aprilia Nur Larasati; Dian Dwi Permatasari; Ramdani Kurniawan; Rena Purnamawati; Lia Umami
Indonesian Journal of Tropical Biology Vol. 1 No. 1 (2025): April
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

Butterflies (order Lepidoptera) are a group of insects that have an important role in ecosystems as pollinators, part of the food chain, and bioindicators of environmental quality. The diversity of butterflies also contributes to the aesthetic value and ecotourism potential of an area. This study aims to identify the types of butterflies and analyze their diversity and abundance in the Kelantangan Nature Tourism Park (TWA), West Lombok, West Nusa Tenggara. The survey was conducted using the visual transect method along the observation path at the active time of the butterflies, namely morning and noon. Data were analyzed using the Shannon-Wiener diversity index (H'), the Simpson dominance index (D), and the uniformity index (E). The results of the study show that the TWA Kerandangan area has a moderate to high level of butterfly diversity, with several species classified as endemic and indicators of habitat quality. The existence of different types of host plants and natural vegetation supports the diversity of species found. These findings show the importance of the role of the TWA Kerandangan area as an insect habitat and support the urgency of sustainable conservation management. In addition, the results of this research can be used as a basis for the development of biodiversity-based educational ecotourism in the region.
Biological Study of Protein Content in Various Types of Vegetables Arianteza Prazali; Adilla Nur Azizah
Indonesian Journal of Tropical Biology Vol. 1 No. 1 (2025): April
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

Vegetables, as a source of plant-based protein, play a significant role in a healthy and sustainable diet. Several vegetables from the Fabaceae, Brassicaceae, and Amaranthaceae families are known to contain high levels of protein, making them viable alternatives to animal-based protein. This study aims to examine the potential of vegetables as alternative protein sources in supporting food security and sustainability. A literature review was conducted to analyze the protein content in various vegetables based on scientific literature from indexed journals and trusted organizations. The analysis was performed descriptively, comparing the protein content of vegetables based on their type, growth phase, and growing environment, while also identifying the biological roles of protein in plants. The results indicate that protein is a food substance made up of amino acids, which functions to build and regulate the body. Of the 20 amino acids, 8 are essential for adults and 10 for growing children. High-protein vegetables include spinach (Amaranthus sp.) with 3.5 g of protein per 100 g, broccoli (Brassica oleracea) 2.8 g, soybeans (Glycine max) 18.2 g, peanuts (Arachis hypogaea) 21 g, potatoes (Solanum tuberosum) 2%, and edamame (Glycine max) 18.5 g per 155 g. These vegetables are rich in protein, vitamins, and minerals essential for the body and offer health benefits such as improved stamina, support for bone health, and reduced risk of certain diseases. The study concludes that vegetables and legumes with high protein content can serve as an optimal alternative source of nutrition to support a healthy diet.
Review of Evolution, Global Distribution, and Ecological Roles of Macroalgae in Tropical and Subtropical Marine Ecosystems Audya Septria; Muhammad Noval Alghifari; Joachim Lawoliyo
Indonesian Journal of Tropical Biology Vol. 1 No. 1 (2025): April
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

Macroalgae play a crucial ecological role in coastal ecosystems, particularly in tropical and subtropical marine environments. This study aims to review the evolution, global distribution, and ecological functions of macroalgae through a systematic literature review approach. Scientific articles from the last ten years were selected from databases such as Scopus, ScienceDirect, and Web of Science, with a focus on macroalgae diversity, taxonomy, bioactive compounds, and environmental services. Results show that macroalgae have existed since the Proterozoic era and have evolved into morphologically and genetically diverse lineages. Distribution patterns vary significantly between tropical and subtropical zones, influenced by environmental factors such as temperature, salinity, and light intensity. In mangrove and coral reef ecosystems, macroalgae demonstrate adaptive capacity and act as habitat formers, carbon sinks, and bioindicators of ecosystem health. Several genera, including Sargassum, Padina, and Caloglossa, exhibit resilience and high ecological value. Furthermore, macroalgae are rich in bioactive compounds with potential applications in pharmaceuticals, cosmetics, and biofuels. Their high biomass productivity and carbon sequestration ability, comparable to seagrasses and mangroves, highlight their strategic role in blue carbon initiatives. However, excessive macroalgae blooms, particularly in the Atlantic Sargassum belt, raise environmental and socioeconomic concerns. This review emphasizes the need for integrated coastal management strategies to optimize the ecological and economic benefits of macroalgae sustainably.
The Impact ef The Covid-19 Pandemic on Food Security of Farmers' Households in Pringgasela District, East Lombok Regency bayu aditya tama; Arifuddin Sahidu; Siti Nurjannah
Indonesian Journal of Tropical Biology Vol. 1 No. 1 (2025): April
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

The COVID-19 pandemic has significantly impacted food security and the biological vulnerability of farming households, especially in rural areas heavily dependent on agriculture. This study aims to analyze the effects of the COVID-19 pandemic on the food security of farming households in Pringgasela District, East Lombok, and its relation to the biological vulnerability of farmer families. A descriptive quantitative and qualitative method was used, with data collection techniques including interviews, questionnaires, and documentation. The study sample consisted of 30 farming households directly affected by the pandemic. The results show that the pandemic disrupted food availability (73.33% of respondents) and access to food (86.67% of respondents) due to social restrictions and distribution disruptions. The majority of respondents (90%) reported food shortages and difficulties in meeting nutritional needs. Socio-economic factors such as low income, low education, and dependence on small-scale farming exacerbated vulnerability to malnutrition and health issues. Major challenges included decreased food production, limited access to quality food, and food price instability. These findings highlight the importance of interventions in the form of social and economic support to improve food security and enhance the quality of life for farming households during a crisis.
Strategy of Management of Pavo Muticus linnaeus Population in Bekol and Bama Savana of Baluran National Park: Strategi Pengelolaan Populasi Pavo Muticus linnaeus di Savana Bekol dan Bama Taman Nasional Baluran Ilham Wijayanto Oktarino
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

This study aims to determine the management strategies and populations of green peacocks in bekol savanna and Bama savanna. The method of collecting data for the population is done by the Line Transect method which uses a path length of 2 Km with an unspecified path width and for spatial distribution carried out by stabilizing the coordinate points in each encounter and measuring the encounter distance and angle of encounter. And then it is managed by Geographic Information System. Whereas the strategy for optimizing the management of green peacock populations is used by in-depth interview method and Focus Group Disscustion (FGD) then it are analyzed descriptively, quantitatively. The results of the study carried out that population estimation was found for 27 individuals in Bekol savanna and 38 individuals in Bama savanna and having different sex ratio production at Bekol savanna had a ratio of male and female, which are 1: 2 and in Bama savanna had a 1: 4 sex ratio, and had a percentage of age structures dominated by adolescents from the two observation pathways, while the strategy for efforts to optimize the management of green peacock populations is obtained by the management of adaptive green peacock habitat to conduct regional management by increasing workforce personnel and maximizing cooperation in education and research from various partner institutions.
Biomedical Cost Analysis of Tuberculosis Morbidity in Inpatients at dr. Soeselo Slawi Hospital, 2022 arifina fahamsya; Chiara Dhinta Vandani; Lailiana Garna Nurhidayati
Indonesian Journal of Tropical Biology Vol. 1 No. 1 (2025): April
Publisher : Yayasan Siti Widhatul Faeha

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Abstract

Tuberculosis is one of the deadly infectious diseases worldwide. It is caused by Mycobacterium tuberculosis infection. The cases of tuberculosis in 2022 were reported to be 824,000 with an annual death toll of 93,000. Tuberculosis is a disease caused by long-term treatment and falls under the ICD-10 code 16.2 for national health insurance coverage. The aim of this research is to determine the cost of illness due to tuberculosis from a health perspective and to determine the variables associated with the cost of illness due to tuberculosis at RSUD dr. Soeselo Slawi in 2022. This research method uses observational with a cross sectional research design on 82 patient data, descriptive analysis methods to determine cost estimates and statistical methods to determine the factors that influence the total cost of illness for tuberculosis patients. Based on the research, it shows that the cost of service is the highest cost component compared to other cost components. The average cost of supporting examinations is Rp. 753,827.00; service fee of Rp. 2,133,809.00; and pharmacy costs Rp. 1,873,449.00. The average cost of tuberculosis illness from a healthcare perspective is Rp. 4,761,085.00. The largest component of the illness costs is the service cost. The variables significantly associated with a Sig. (2-tailed) value ˂ 0.05 are the ward class, length of stay, diagnostic test costs, service costs, and pharmacy costs with respect to the total illness costs.
Arenga Palm Harvesting and Processing Practices by the Community of Kekait Village, West Lombok: Praktik Pemanenan dan Pengolahan Pohon Aren oleh Masyarakat Desa Kekait, Lombok Barat Rizki Sukarman Sawaka; Adelia Zahra; Regina Natasya Putri
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

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This study aims to describe the traditional practice of harvesting and processing palm trees (Arenga pinnata) by the people of Kekait Village, West Lombok, as well as examining the cultural values and ethnobotanical knowledge that accompany them. The research method used is qualitative with an ethnobotanical approach, through participatory observation, in-depth interviews, and field documentation. The results of the study show that palm trees are still abundant and scattered on land owned by residents and wild land. The sap tapping technique is carried out through the stages of mantokin and bêgéyong, as well as the use of traditional tools such as bamboo, belakas, and laru wood as natural bioinhibitors. The process of processing sap into ant sugar is carried out without chemicals, reflecting local wisdom in maintaining the quality and sustainability of the environment. It was also found that human behavior and emotions can affect crop yields, which suggests an ecological-spiritual relationship between humans and trees. These findings confirm the importance of preserving local knowledge as part of biocultural conservation and sustainable management of natural resources.
Bioconservation Management of Protected Forest Areas: A Case Study in the West Rinjani Forest Management Unit: Pengelolaan Biokonservasi Kawasan Hutan Lindung: Studi Kasus di Unit Pengelolaan Hutan Rinjani Barat Raden Dendy Anugrah; Haeki Manzis; Inda Nur Cahyani; Fitri Sandya Arini
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

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Sustainable forest management is essential to maintaining ecological integrity and improving community welfare. This study aims to assess the performance of the West Rinjani Forest Management Unit (KPHL Rinjani Barat) in implementing conservation-based forest governance. A descriptive qualitative approach was applied, involving field observations, semi-structured interviews with key stakeholders, and document analysis. The data were analyzed using the Miles and Huberman interactive model through data reduction, data display, and conclusion drawing. The results indicate that KPHL Rinjani Barat achieved the highest performance score (3) across all six evaluation indicators, including competency standards, operational consistency, planning effectiveness, and implementation of forest utilization and protection. Despite this, only 20% of the long-term forest management plan (RPHJP) could be executed due to limited financial support. The study concludes that while institutional performance is strong in planning and community facilitation, funding constraints hinder full implementation. This highlights the urgent need for policy reform in budgeting systems to strengthen forest governance at the local level. Scientifically, this study supports the integration of bio-conservation principles into decentralized forest management and recommends increased state and stakeholder investment to ensure ecological sustainability and socio-economic benefits for forest-dependent communities.
Detection of Aerobic Bacterial Contamination in Frozen Chicken Meat Using the TPC (Total Plate Count) Method: Deteksi Kontaminasi Bakteri Aerob pada Daging Ayam Beku Menggunakan Metode TPC (Total Plate Count) Annisa Alifiya Mutmainnah; Lili Suharli; Kusdianawati; Ardiyanto Chandra Wijaya
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

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This study aims to evaluate the biological quality of frozen chicken meat through pH, early spoilage detection, and total microbial contamination, supporting food safety monitoring. According to SNI No. 01-6366 (2000), the maximum microbial contamination limit (BMCM) for chicken meat is 1 × 10⁴ CFU/g. The study utilized pH tests with litmus paper, the Eber test with Eber reagent, and total plate count (TPC) using the MC-Media Pad ACplus™ method, involving buffer preparation, serial dilution, and colony counting. Results showed all three samples had a normal pH range (5–6), meeting the standard. The Eber test indicated all samples were negative for spoilage, as no NH₄Cl compound was formed. However, TPC results revealed that sample A1 (1 × 10⁴ CFU/ml) met the microbial threshold, while samples A2 (3 × 10⁵ CFU/ml) and A3 (5 × 10⁵ CFU/ml) exceeded the BMCM after 48 hours. The findings suggest that although pH and spoilage indicators were within normal limits, microbial load in some frozen chicken samples surpassed safety thresholds. These results underscore the importance of strict cold chain management and routine microbial testing to ensure food safety and consumer health.
Analysis of Factors Causing Garbage Accumulation in The Tanjung Karang Coastal Area: Analisis Faktor Penyebab Penumpukan Sampah di Wilayah Pesisir Tanjung Karang Irtiqa Ulya; Valhalla Yudha Pramana; Syaum Sahruramadhan; Nadia Tarissya Pratiwi
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
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Abstract

Tanjung Karang Beach in Mataram City faces serious waste accumulation due to rising human activities, especially tourism. This study aims to identify the types and sources of waste and analyze the main contributing factors. A qualitative approach was used through field observations, interviews, and literature reviews. The results show that inorganic waste, particularly single-use plastics and styrofoam, dominates the area. The main sources include tourist activities, river runoff, and marine debris. Using a Fishbone Diagram, four contributing factors were identified: (1) Machine limited infrastructure and budget; (2) Method irregular waste collection and weak implementation of the 3R principle; (3) Man low awareness and careless littering; and (4) Material inadequate trash bins. The study concludes that waste accumulation in Tanjung Karang is a multidimensional issue involving technical, behavioral, and institutional aspects. This research contributes to understanding coastal waste problems and recommends improving infrastructure, promoting community education, enforcing regulations, and strengthening collaboration between stakeholders to ensure sustainable coastal tourism.

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