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All Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Indonesian Fisheries Research Journal LIMNOTEK
Hermana, Indra Setiadi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Engineering Environmental Science

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Microplastics in Sediment and Digestive Tract of Amazon Sailfin Catfish (Pterygoplichthys Spp.) in the middle segment of the Citarum River, Karawang, West Java, Indonesia Hermana, Indra Setiadi; Hidayat, Hidayat; Hariyadi, Sigid; Kodiran, Taryono; Yoga, Gunawan Pratama; Suryono, Tri; Triwisesa, Endra
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 31 No. 1 (2025)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2025.8790

Abstract

Microplastic pollution, primarily driven by industrial, residential, and agricultural activities, is a growing concern in the middle section of the Citarum River, Indonesia. Microplastics research was conducted three times in the central Citarum watershed from February to April 2022. This study investigates the types, abundance, and polymer composition of microplastics found in the sediment and digestive tract of the Amazon sailfin catfish (Pterygoplichthys spp.). Four types of microplastic-pellets, films, fibers, and fragments were identified, with an average abundance of 602.22 ± 563.87 particles/kg in sediment and 90.6 ± 40.7 particles/individual in catfish.  The majority of particles were smaller than 0.3 mm. Identified polymers included Polyamide (PA), Polystyrene (PS), Polypropylene (PP), Cellulose Acetate (CA), Acrylonitrile Butadiene Styrene (ABS), Polyvinyl Chloride (PVC), Melamine, Ethylene Vinyl Acetate (EVA), Polyethylene (PE), Low-Density Polyethylene (LDPE), High-Density Polyethylene (HDPE), and Polyethylene Terephthalate (PET). Statistical analysis showed no significant difference in microplastic pollution among industrial, densely populated residential, and agricultural areas. These findings underscore the widespread distribution of microplastics in the Citarum River and highlight the need for comprehensive mitigation strategies.
Microplastic Abundance in The Waters of The Middle Section of The Citarum River, Karawang, West Java Hermana, Indra Setiadi; Hariyadi, Sigit; Taryono, Taryono; Hidayat
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 1 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.1.119-128

Abstract

Microplastics in the Central Citarum River, Karawang, West Java, originate from anthropogenic activities of people living around the watershed, which is an industrial, agricultural, and densely populated residential area. Microplastics are degraded plastics < 5 mm in size. This study aims to determine the abundance and size of microplastics in the Middle Citarum River, through observation with a microscope. Sampling was conducted at three locations with three observations: February, March, and April 2022. The types of microplastics found were pellets, films, fibers, and fragments. Microplastic particle size < 0.3 mm was the most common size found. The abundance of microplastics in the water of the Middle section of the Citarum River is different at each sampling location. The total number of microplastic particles in all research locations was 4,413 particles. The highest abundance of microplastics in all sampling locations was in densely populated residential areas at 239.7 ± 326.7 particles/m3 , followed by agricultural areas with an abundance of 72.5 ± 63.8 particles/m3 , then the lowest abundance was in industrial areas at 55.6 ± 57.8 particles/m3. The average abundance of microplastics in the middle Citarum River water was 122.6 ± 209.7 particles/m3. Statistical analysis using Kruskall Wallis with a df value of 2 > 0.05 showed no significant difference in microplastic abundance at each research location. All stations had the same potential for microplastic pollution. This study shows that high anthropogenic activities lead to high microplastic pollution in water. Therefore, proper mitigation and management of waste and plastic waste are needed.
Population Status of Napoleon Wrasse (Cheilinus undulatus- Rüppell 1835) in Reef Waters of Banda Islands, Centre Molluccas Province Suharti, Sasanti Retno; Edrus, Isa Nagib; Hermana, Indra Setiadi
Indonesian Fisheries Research Journal Vol 29, No 1 (2023): (June) 2023
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.1.2023.%p

Abstract

ABSTRACT Napoleon wrasse (Cheilinus undulatus) has been listed in Appendix II of  Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Under CITES regulations, countries exporting vulnerable species are required to guarantee any exports being not detrimental to the species survival in their ecosystem.The last state of wild population sizes and its exploitation level for this species in study area did not well documented. Population study of  Napoleon wrasse was undertaken in the Banda Waters of Centre Molluccas on October 2018. This study aims to identify the density and length frequency distribution of Napoleon wrasse population in Banda waters, with the intention of providing information about fishing intensity for the fish management. Method of the study used was Underwater Visual Census (UVC) to gather population data and also used Global Positioning System (GPS) to find out the length of area census.   Fish length (TL) was visually estimated using the stick method. The result shows there are 168 individual of Napoleon fish with sizes ranged from 10 to 90 cm TL. The population density of this species was 7.14 fish/ha within 23.5 hectars of UVC total areas and found more abundant of Napoleon wrasse in Ai Island waters. Length frequency distribution of the fish was dominated by fish of  40 cm in length (TL). Fish population in Banda waters indicated high density level with low fishing intensity.
Co-Authors Edrus, Isa Nagib Gunawan Pratama Yoga, Gunawan Pratama Hidayat Hidayat Hidayat Sasanti Retno Suharti, Sasanti Retno Sigid Hariyadi sigit hariyadi, sigit Taryono Taryono, Taryono Tri Suryono, Tri Triwisesa, Endra