Vol. 7 No. 2 (2025)

Macroalgae is a type of tuberous plant that does not have a clear distinction between roots, stems, and leaves. Macroalgae also have a very important role ecologically in marine ecosystems and have been widely utilized in the cosmetics industry, food sources and their potential as medicines due to their bioactive compounds. The presence of macroalgae in the waters is found in the intertidal zone and subtidal zone and occupies a variety of substrates in the waters. One location that has good potential regarding the presence of macroalgae is Kondang Merak Beach because of its natural ecosystem…

Kelulut honey, produced by stingless bees (Trigona spp.), is valued for its nutritional and medicinal benefits. However, thermal treatment can alter its physicochemical properties, affecting quality and functionality. This study assessed the impact of heating at 65 °C and 121 °C for 5 minutes on Kelulut honey from seven regions in Indonesia, analyzing changes in color intensity, total dissolved solids (TDS), solubility, viscosity, water content, hydroxymethylfurfural (HMF), and acidity. At 65°C, solubility improved (e.g., Garut: 22.7 → 84.7) and TDS increased (Bogor: 77.0 % → 79.5 %), while…

Ageratum conyzoides L., locally known as Babandotan, is an important plant in particular in West Java, including in Bandung, due to its medicinal uses. Currently, climate change is known to influence the distribution of organisms by altering climates and making habitats suitable or not suitable. Then, this present study is aiming to use machine learning to model future distributions of A. conyzoides under climate change scenarios CMIP 5 RCP 8.5 until 2070 in Bandung areas. The A. conyzoides occurrences were sampled from nine locations in Bandung and its surrounding areas. Machine learning…

Largehead hairtail (Trichiurus lepturus) is a potential fish commodity in the seawaters of Pangandaran Regency. Fishing activities operate under an open-access regime, allowing unrestricted participation. The lack of catch restrictions can lead to overfishing. This research aims to determine the optimal level of production, fishing effort, and economic rent, both in terms of biology and economics, to ensure sustainable management of largehead hairtail resources in Pangandaran Regency. The research method used is a case study that includes both primary and secondary data. Primary data were…

Pulau Dua Nature Reserve has undergone significant changes to its land, affecting its physical and chemical properties. Additionally, the increasing problem of scattered plastic waste raises concerns about its negative impact on the ecosystem. This study aims to analyze the physical and chemical characteristics of Pulau Dua Nature Reserve and examine the relationship between the proportion of plastic waste cover area and environmental parameters. Microclimate, soil, and plastic waste proportion area data, especially plastic, were collected at 34 points using systematic random sampling, while…

Indonesia possesses a rich collection of art and cultural objects made from both organic and inorganic materials, which are highly susceptible to biodeterioration, particularly in the warm and humid tropical climate. Microorganisms are one of the primary causes of deterioration, leading to structural degradation, aesthetic changes, and the loss of historical and cultural value. Therefore, effective conservation strategies are needed to control the growth of microorganisms in conservation. This study examines various local plants used in traditional conservation in Indonesia, analyzing their…