Pendugaan Tingkat Pencemaran Mikroplastik pada Holothuroidea berdasarkan Microplastic Pollution Indexes di Pesisir Timur Surabaya

Ekawati, Ekawati (2025) Pendugaan Tingkat Pencemaran Mikroplastik pada Holothuroidea berdasarkan Microplastic Pollution Indexes di Pesisir Timur Surabaya. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Keberadaan sampah plastik terus mengalami peningkatan di lingkungan. Plastik mengalami fragmentasi menjadi partikel dalam rentang ukuran 1-5000 µm disebut mikroplastik. Partikel plastik dengan ukuran kecil terakumulasi dalam tubuh biota perairan, salah satunya teripang. Teripang dengan kebiasaan makan sebagai deposit feeder dan pergerakan lambat berpotensi menjadi bioindikator mikroplastik di lingkungan. Sehingga, perlu dilakukannya penilaian dengan indeks mikroplastik untuk mengukur dan menilai dampak dari mikroplastik dalam ekosistem. Tujuan dari penelitian untuk mengidentifikasi karakteristik mikroplastik pada dinding tubuh teripang Paracaudina australis, Phyllophorus sp., air dan sedimen serta evaluasi tingkat risiko pencemaran mikroplastik pada teripang berdasarkan Microplastic Pollution Indexes (MPI) di Pesisir Timur Surabaya. Identifikasi mikroplastik dilakukan berdasarkan karakteristik fisik dan kimia, serta perhitungan MPI meliputi Pollution Load Index (PLI), Polymer Risk Index (H) dan Pollution Risk Index (PRI). Dari hasil penelitian mikroplastik ditemukan pada dinding tubuh teripang, air dan sedimen. Bentuk mikroplastik dominan yang didapatkan adalah fragmen dengan ukuran 50-250 µm, dan warna hitam. Sedangkan, polimer mikroplastik yang didapatkan dari seluruh sampel teripang adalah PET, PA, PP, HDPE, dan PS. Penilaian indeks polusi mikroplastik pada teripang P. australis dan Phyllophorus sp. di Pesisir Timur Surabaya menunjukkan bahwa seluruh spesies teripang tercemar mikroplastik dengan nilai PLI 1,03 dan 1,35. Nilai H 14,41 dan 10,52 yang menandakan bahaya polimer sedang, serta nilai PRI 15 dan 14,2 yang menandakan risiko polusi mikroplastik rendah.
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Existence of plastic waste has continued an increase in the environment. Plastic breaks into particles in the size range of 1-5000 µm called microplastics. Small plastic particles accumulate in aquatic biota, one of which is sea cucumber. Sea cucumbers with their feeding habits as deposit feeder and slow movement have the potential to be bioindicators of microplastics in the environment. So, it is necessary to assess the microplastic index to measure and assess the impact of microplastics in the ecosystem. The research aims to identify the characteristics of microplastics in the body wall of sea cucumbers Paracaudina australis, Phyllophorus sp., water and sediment and evaluate the risk level of microplastic pollution in sea cucumbers based on Microplastic Pollution Indexes (MPI) on the East Coast of Surabaya. Microplastic identification was carried out based on physical and chemical characteristics, as well as MPI calculations including Pollution Load Index (PLI), Polymer Risk Index (H) and Pollution Risk Index (PRI). Result of study showed that microplastics were found in body wall of sea cucumber, water and sediment. The dominant type of microplastics obtained is fragments with a size of 50-250 µm, and black color. While the polymers obtained from all sea cucumber samples are PET, PA, PP, HDPE, and PS. Assessment of Microplastic Pollution Index in sea cucumbers P. australis and Phyllophorus sp. on the East Coast of Surabaya showed that all sea cucumber species were polluted by microplastics with PLI values of 1,03 and 1,35. H values of 14,41 and 10,52 which indicate moderate risk of polymer, and PRI values of 15 and 14,2 which indicate low microplastic pollution risk.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Dinding Tubuh, Microplastic Pollution Indexes, Pencemaran, Teripang Body wall, Contamination, Microplastic Pollution Indexes, Sea Cucumber
Subjects:	Q Science Q Science > QH Biology Q Science > QH Biology > QH541 Ecology
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46101-(S2) Master Thesis
Depositing User:	Ekawati Ekawati
Date Deposited:	14 Feb 2025 03:09
Last Modified:	14 Feb 2025 03:09
URI:	http://repository.its.ac.id/id/eprint/118737

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