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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Pendidikan Biologi Martabe : Jurnal Pengabdian Kepada Masyarakat Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Pembelajaran dan Biologi Nukleus Best Journal (Biology Education, Sains and Technology) Jurnal Ilmiah Profesi Pendidikan Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Biologi UMA (JIBIOMA) Bioscientist : Jurnal Ilmiah Biologi Envirotek : Jurnal Ilmiah Teknik Lingkungan Biocaster : Jurnal Kajian Biologi Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Riwayat: Educational Journal of History and Humanities Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Mufti Sudibyo, Mufti
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences

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Identifikasi Mikroplastik pada Insang dan Saluran Pencernaan Ikan Nila (Oreochromis niloticus) di Danau Toba Kabupaten Simalungun Situmorang, Erika Putri Octavani; Prastowo, Puji; Sudibyo, Mufti
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.964

Abstract

Microplastic pollution in the waters of Lake Toba has the potential to accumulate in aquatic biota, including tilapia (Oreochromis niloticus) cultivated in floating net cages. The presence of microplastics in aquatic organisms is an important concern, because it has the potential to disrupt the balance of aquatic ecosystems and pose a risk to food security for humans. This study aims to identify the shape and color of microplastics in the gills and digestive tract of tilapia, as well as analyze the differences in abundance between the two organs. The research was carried out in June-August 2025 using a quantitative descriptive method. Fish samples were taken from three stations in the waters of Lake Toba, Simalungun Regency, namely tourist areas, boat transportation activities, and residential areas. Microplastic identification was performed visually using a microscope after the degradation of organic matter by the Fenton method. The results showed that the abundance of microplastics in the gill organs was 32 particles/individual, while in the digestive tract as many as 31 particles/individual. The microplastics found are dominated by fibers, fragments, and films with the main colors being green, black, red, brown, and transparent. The results of the independent sample t-test showed a value of p = 0.787 (p > 0.05) which indicated that there was no significant difference in microplastic abundance between the gills and the gastrointestinal tract. These findings confirm that microplastics have been distributed relatively evenly in tilapia organs, so that they have the potential to have an impact on the health of Lake Toba's aquatic ecosystem and food safety from aquaculture fisheries.
Identifikasi Mikroplastik pada 5 Spesies Ikan Laut di TPI Tanjung Beringin Kabupaten Serdang Bedagai Tarigan, Beatrice Loise; Sitompul, Aida Fitriani; Sudibyo, Mufti
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.965

Abstract

Microplastic pollution in the marine environment is a global issue that has the potential to threaten aquatic organisms, including marine fish consumed by humans. The presence of microplastics in fish can impact the health of marine ecosystems and risk entering the human food chain. This study aims to analyze the shape, color, abundance, and differences in the abundance of microplastics in the gills and digestive tract of marine fish for consumption. The study was conducted in June-August 2025 at the Tanjung Beringin Fish Farming Site (TPI) in Serdang Bedagai Regency. The sample consisted of five fish species, namely Sardina pilchardus, Selaroides leptolepis, Rastrelliger brachysoma, Parastromateus niger, and Euthynnus affinis, each with 10 individuals/fish species. Microplastics were isolated from the gills and digestive tract, then identified based on the shape and color of the microplastics using a stereo microscope. Microplastic abundance data were analyzed using a one-way ANOVA test. The results showed that the microplastics found were dominated by fibers (56%), fragments (42%), and films (2%). The colors of the identified microplastics included red (81%), black (73%), green (37%), blue (6%), and transparent (3%). The highest microplastic abundance was found in the digestive tract of Euthynnus affinis (41.9 particles/individual), while the lowest was found in the gills of Rastrelliger brachysoma (26.5 particles/individual). The ANOVA test showed significant differences in microplastic abundance (p < 0.05), especially between Sardina pilchardus and Parastromateus niger, and between Selaroides leptolepis and Euthynnus affinis.
Co-Authors A.A. Ketut Agung Cahyawan W Aida Fitriani Sitompul Amelia, Pidia Amrizal Amrizal Aristo Hardinata Aryanti Dharma Azhari, Ichwan Batubara, Agung Setia Binari Manurung, Binari ButarButar, Yutrina CICIK SURIANI Dalimunthe, Rizka Ramadani Daulae, Abdul Hakim Daulay, Abdul Hakim Dawolo, Alfandi Putra Jaya Eddiyanto Eddiyanto Elida Hafni Siregar, Elida Hafni Endang Silalahi, Endang Fauziyah Harahap Febriyanti, Putri Halim Simatupang HANIM, NISFA Hasruddin Hutahaean, Harvei Desmon Lubis, Khairiza Manullang, Lydia Ruth Hasianna Melva Silitonga Mira Rangkuty, Sailana Mutiara Agustina Nst Nasution, Debi Rausana Nasution, Jamilah Panggabean, Nurul Huda Pehulisa, Rensiva Ray Puji Prastowo, Puji Riyanto Riyanto Santri, Ratih Nimas Saragih, Ferosalina Natasia Sari, Elvira Nanda Sihite, Onggal Simbolon, Licia Larosa Sitorus, Mutiara Septiani Situmorang, Erika Putri Octavani Suci Rahmawati, Suci Syahmi Edi Syahputra, Ricky Andi Syarifuddin Syarifuddin Tarigan, Beatrice Loise Tarihoran, Sulastri Tresia Valentina Depari, Tresia Valentina Widia Ningsih Zuhairiah Nasution, Zuhairiah