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INDONESIA
Journal of Tropical Biodiversity
Published by Universitas Nasional Jakarta
ISSN : -     EISSN : 27744116     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology
Journal of Tropical Biodiversity, ISSN : 2774-4116 (Online) is an international journal that publishes articles on all aspects of biological diversity-its description, analysis and conservation, and its controlled rational use by humankind. The scope of Biodiversity and Conservation is wide and multidisciplinary, and embraces all life-forms. published by Universitas Nasional Jakarta
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Hewan dan Zoologi
Articles 5 Documents
 1 
Search results for , issue "Vol 3 No 3 (2023): August 2023" : 5 Documents clear
Bioactivity of Fungi from the Thousand Islands Against Staphylococcus aureus and Escherichia coli Using Dilution Method Noverita Noverita; Samitri P. Debby
Journal of Tropical Biodiversity Vol 3 No 3 (2023): August 2023
Publisher : Universitas Nasional Jakarta

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Abstract

The rapid advancement of science and technology has brought numerous benefits to human life; however, it is unfortunate that this progress has not extensively tapped into one of Indonesia's abundant biological resources, which is fungi, especially marine fungi. This research was conducted to explore the antimicrobial potential of marine fungi isolated from the Thousand Islands against Staphylococcus aureus and Escherichia coli using the dilution method. The study aimed to determine the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of the obtained isolates against the two test bacteria. The research comprised two phases: the collection of samples in the field, followed by the antimicrobial activity assay using the dilution method in the laboratory. The findings are expected to reveal several types of marine fungi from the Thousand Islands with antimicrobial capabilities that could be developed as alternative antibiotics to replace those that have lost their potency. The results of the study showed that out of the 10 tested marine fungi isolates, all of them exhibited inhibition against the growth of Staphylococcus aureus and Escherichia coli. The concentrations of 100% and 75% proved to be the most effective in inhibiting bacterial growth. The MIC of the tested marine fungi extracts was determined to be 25%. Moreover, five isolates of marine fungi demonstrated MBC against S. aureus and E. coli: S.KL5 isolate at concentrations of 75% and 50%, S.AL and S.KL1 isolates at concentrations of 100% and 50%, and S.MA2 and S.KL1 isolates at concentrations of 100% and 75%. The identified best isolates were found to belong to the species Penicillium sp. and Aspergillus niger .
Diversity of Macroalgae Species on Pramuka Island, Thousand Islands Regency, DKI Jakarta Province Sri Handayani; Hilwa Syifa Fadhilah; Ulfa Ainisyifa
Journal of Tropical Biodiversity Vol 3 No 3 (2023): August 2023
Publisher : Universitas Nasional Jakarta

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Abstract

Macroalgae are marine plants that are included in the Thallophyta division because they cannot be distinguished between their roots, stems and leaves. Life is widespread in almost all coastal areas of Indonesia, including the coast of the Thousand Islands. Pramuka Island is included in the Thousand Islands Regency, DKI Jakarta Province. As an inhabited island, anthropogenic activities on Pramuka Island vary greatly, so that the waters on Pramuka Island cannot be separated from anthropogenic pressures that can threaten marine biota on Pramuka Island, one of which is macroalgae. The relationship between decreasing macroalgae diversity and environmental quality needs to be considered, because the presence and loss of macroalgae is very important for the sustainability of macroalgae in the Thousand Islands and their conservation. The aims of this study were (1) to determine the diversity of macroalgae on Pramuka Island; (2) to determine the relationship between diversity and water quality on Pramuka Island. The research method is a survey method using the quadratic transect method. Analysis of macroalgae species diversity data using the Shanon-Wiener diversity index. Dominance with the Simpson dominance index. The Diversity Index and Dominance Index were calculated using the PAST.4.0 software. The link between environmental quality and diversity uses Principal Component Analysis (PCA). The results showed that the diversity of macroalgae on Pramuka Island was in the medium category, which ranged from 1.273 to 2.281. The diversity of macroalgae in Pramuka Island waters is influenced by physical factors such as salinity, depth and current speed, temperature, brightness, TDS , and chemical factors of nitrate, DO, Hg;Pb;Cu;
Characteristics of Nests and Nest Trees of the Bornean Orangutan Subspecies (Pongo pygmaeus wurmbii, TIEDEMAN 1808) in the Protected Area of Rungau River Riparian Zone, Central Kalimantan Province Firmansyah Firmansyah; Achmad Yanuar; Tatang Mitra Setia
Journal of Tropical Biodiversity Vol 3 No 3 (2023): August 2023
Publisher : Universitas Nasional Jakarta

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Abstract

Orangutan conservation efforts can be carried out through habitat management both within and outside of conservation areas. The protected areas along the Rungau River has indications of an orangutan population. So, it is necessary to study the characteristics of nests and nest trees. The research method uses transect lines to record the characteristics of the nets and the characteristic of the nest tree. Based on research on the characteristics of the nest, it is known that the height of the nest ranges from 5 to 32 m from the ground. Class B is the dominant nest class. Dominant nest diameter of more than 1 m. Then the characteristics of the nest tree are known that the height of the nest tree ranges from 10 to 37 m. In adults, tree nests have a diameter at breast hight in the range of 5 to 96 cm. The dominant type of nest tree species are guava and meranti.
The Relationship Between Heavy Metals Pb, Cr, and Hg in the Water and Sediments of the Ciliwung River with the Content of Pb, Cr, and Hg in Plankton Khoe Susanto Kusumahadi
Journal of Tropical Biodiversity Vol 3 No 3 (2023): August 2023
Publisher : Universitas Nasional Jakarta

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Abstract

This research aims to investigate the relationship between heavy metals Pb, Cr, and Hg in water and sediments with the concentrations of Pb, Cr, and Hg in the water, sediments, and plankton of the Ciliwung River. Heavy metals Pb, Cr, and Hg concentrations in water, sediments, and plankton generally appear to fluctuate. As we move downstream, the concentrations of these heavy metals tend to increase in line with increased human activities in the downstream area, such as industrial, service, trade, and residential activities. There are significant differences in the concentrations of Pb, Cr, and Hg in plankton based on observation locations (p<0.05), whereas based on repetitions (seasons), only Pb and Hg exhibit significant differences (p<0.05). Correlation tests indicate that the relationship between the concentration of Hg in water and the concentration of Hg in plankton is not statistically significant (p>0.05). Similarly, the relationships between Pb, Cr, and Hg concentrations in sediments and Pb, Cr, and Hg in plankton are not statistically significant (p>0.05).
KOMPAS LESTARI: Sustainable Waste Management in Makartitama Village, Peninjauan District, Ogan Komering Regency, South Sumatra. Richa Amalia; Erwin Hendra Putra; Sunarto Sunarto
Journal of Tropical Biodiversity Vol 3 No 3 (2023): August 2023
Publisher : Universitas Nasional Jakarta

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Abstract

Makartitama, located in PT. Pertamina Hulu Energi Ogan Komering's Ring 1 operational area, faces socio-economic challenges, with approximately 32% of its population living in poverty. These conditions have led to limited awareness of Clean and Healthy Living Behavior, resulting in higher disease prevalence and increased risk of stunting in children due to malnutrition. The Kompas Lestari program aims to empower the community and improve their well-being. Through systematic planning, execution, monitoring, and evaluation, the program involves all stakeholders, including local residents, other companies, NGOs, and community leaders. The heart of the initiative is Maggot Cultivation, utilizing the larvae of the Black Soldier Fly, an efficient organic waste decomposer. This practice significantly reduces waste accumulation, lowers pollution, and mitigates carbon emissions. Additionally, maggots offer a high-quality protein source and can be transformed into animal feed, benefiting local poultry and freshwater fish farming.The program has yielded positive results, creating new productive community groups and enhancing economic prospects. By fostering a value chain that includes waste collection, maggot cultivation, organic vegetable farming, and fish farming, the community experiences increased economic activity and improved nutrition. The success of Kompas Lestari has the potential to be replicated in other areas. However, the program requires continuous efforts and improvement to ensure sustainability and growth. Recommendations include strengthening cooperation with local companies for waste supply and exploring the use of oil palm waste as maggot feed. Moreover, improving the Maggot House infrastructure, conducting product analysis, and developing branding and marketing strategies for maggot-derived products are essential steps for expanding the program's impact and effectiveness

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