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All Journal JURNAL PENDIDIKAN TAMBUSAI Journal of Coastal and Ocean Sciences Indo-MathEdu Intellectuals Journal Edu Society: Jurnal Pendidikan, Ilmu Sosial dan Pengabdian Kepada Masyarakat Buletin Kesehatan MAHASISWA Jurnal Kualitas Pendidikan Ekopedia: Jurnal Ilmiah Ekonomi
Nur’aini, Intan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Nursing Physics Public Health Social Sciences Veterinary Other

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Analysis of Microplastic Types and Abundance in Water, Sediments, and Lokan Clams (Geloina erosa) in the Coastal Waters of Sinaboi, Rokan Hilir Nur’aini, Intan; Amin, Bintal; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 7 No. 2 (2026): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.7.2.79-86

Abstract

The objective of this study is to identify the species and abundance in the water, sediment, and the lokan clam to determine differences in abundance among the water, sediment, and the lokan clam and to examine the relationship between abundance in the water and sediment and the abundance of the lokan clam. This study was conducted from October to December 2025 in the waters off Sinaboi Beach. The methods used in this study were a survey and purposive sampling, with samples collected directly at the study site. Sample analysis was performed at the Marine Chemistry Laboratory, Department of Marine Sciences, Faculty of Fisheries and Marine Sciences, Universitas Riau. Samples were collected from three types of test materials: water, sediment, and lokan clam from the waters off Sinaboi Beach. The results of the study showed that environmental parameters ranged from 7.38–8.20 for pH, 29–31°C for temperature, 24–29‰ for salinity, and 0.50–1.21 m/s for current velocity. Four types of microplastics were found in the water, sediment, and lokan clam: fibers, fragments, films, and foam. The average microplastic abundance in water was 0.45 particles/L. In sediment, it was 1.74 particles/g. The average microplastic abundance in lokan clam was 2.20 particles/g. Statistical analysis indicates a significant difference in microplastic abundance in water, sediment, and the lokan clam (p < 0.05). Microplastic abundance in sediment and the lokan clam shows a stronger correlation because clams are filter-feeding organisms that accumulate microplastics from sediment
Co-Authors Alfiana Alfiana Amiruddin Siahaan Anggraeni, Nuri Triani Balebu, Dwi Wahyu Bintal Amin Dalimunthe, Nur Aisyah Dwicahya, Bambang Eka Yusnaldi Elvina Elvina Fattah Nasution, Abdul Hanafi, Maulana Harin Indriani, Ririn Lbs, Erfiani Lilis, Lilis Lubis, Desi Indriani Nasution, Shakira Fadla Nugraha , Nayla Rubayyina Nugraha, Nayla Rubayyina Pulungan, Farhan Qatrunnada, Qatrunnada Usiono Usiono Wulandari, Ai Malita Yusni Ikhwan Siregar