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All Journal Jurnal IPTEK Bagi Masyarakat INJURITY: Journal of Interdisciplinary Studies
Dirk Y. P. Runtuboi
Universitas Cenderawasih
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Mechanical Engineering Physics Public Health Social Sciences

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Effectiveness of Silver Nanoparticles Utilization from Microalgae Chlorella Pyrenoidosa and Dunaliella Salina for Vaname Shrimp Farming in the Muara Tami District of Jayapura Imam Mishbach; Barnabas Bara'padang; Dirk Y. P. Runtuboi; Suharno Suharno; Puguh Sujarta; Liyatin Gea
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 3 No. 10 (2024): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v3i10.1295

Abstract

Muara Tami district in Jayapura has significant potential for vaname shrimp farming. However, environmental problems and pathogens are often the main obstacles that reduce the productivity of this culture. One of the innovative solutions being developed to overcome these problems is the application of nanoparticle innovation in aquaculture, especially silver nanoparticles (AgNPs). This study aims to assess the effectiveness of using silver nanoparticles obtained from microalgae Chlorella pyrenoidosa and Dunaliella salina as an alternative that can support the development of vaname shrimp farming. The research method used a qualitative approach, with data collected through direct observation, involving the manufacture of silver nanoparticles from microalgae C. pyrenoidosa and D. salina, which were then used as feed for vaname shrimp. After observation, the data were processed and supported by related literature. The results showed that the application of silver nanoparticles from microalgae was effective on the growth and survival rate of cultured vaname shrimp in Muara Tami District. Thus, these findings indicate that microalgae have great potential as natural agents that can help reduce toxicity in aquaculture environments, creating healthier and more sustainable shrimp farming conditions.
Assessment of Heavy Metal Contamination in Water and Sediment to Support Environmental Monitoring of a Mining-Affected River in Buper Waena, Papua, Indonesia Vyona Mantayborbir; Lalu Panji Imam Agamawan; Ervina Indrayani; Dirk Y. P. Runtuboi; Yulindra Margaretha Numberi; Fawuni G. A. G. Rumbrawer
Jurnal IPTEK Bagi Masyarakat Vol 6 No 1 (2026)
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/j-ibm.v6i1.1759

Abstract

Artisanal mining activities are recognized as important sources of heavy metal contamination in river ecosystems. This study evaluated cadmium (Cd), lead (Pb), and mercury (Hg) concentrations in water and sediments of Kali Jembatan Dua, Jayapura, Papua, Indonesia, as baseline information for environmental monitoring. Water and sediment samples were collected from three stations representing upstream mining areas and downstream river sections in June 2025. Heavy metal concentrations were analyzed using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Concentrations in water ranged from 0.076-0.313 mg/L for Cd, 0.0032-0.0076 mg/L for Pb, and 0.0014-0.0039 mg/L for Hg. Cadmium exceeded the applicable Indonesian water quality standard, whereas Pb and Hg concentrations varied according to the designated water-use classification. Sediment concentrations ranged from 0.347-0.894 mg/kg (Cd), 0.721-2.234 mg/kg (Pb), and 0.0165-0.0277 mg/kg (Hg). Metal concentrations were generally higher at stations near mining activities and lower downstream. Sediments contained higher metal concentrations than the water column, indicating their role as sinks and potential secondary sources of contamination. These findings highlight the need for continuous monitoring and management of mining-affected river systems in Papua.
Co-Authors Barnabas Bara'padang Ervina Indrayani Fawuni G. A. G. Rumbrawer Imam Mishbach Lalu Panji Imam Agamawan Liyatin Gea Puguh Sujarta Suharno Suharno Vyona Mantayborbir Yulindra Margaretha Numberi