Bioakumulasi Mikroplastik pada Moluska di Perairan Pantai Balekambang

Amanda, Nafilah Aulia (2025) Bioakumulasi Mikroplastik pada Moluska di Perairan Pantai Balekambang. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Mikroplastik merupakan partikel pecahan plastik berukuran kecil sekitar <5 mm yang sulit untuk diurai dan didegradasi di lingkungan, sehingga dapat mencemari ekosistem perairan serta dapat terakumulasi dalam tubuh biota laut seperti moluska. Moluska memiliki siklus hidup yang dapat menentukan tingkat akumulasi polutan dalam tubuhmya. Penelitian ini, bertujuan untuk mengetahui kelimpahan serta karakteristik visual maupun polimer kimia mikroplastik yang terakumulasi dalam tubuh enam spesies moluska, yakni Nerita grossa, Nerita maxima, Nerita spengleriana, Nerita polita, Rhinoclavis sinensis dan Tylothais aculeata di zona intertidal Pantai Balekambang, Kabupaten Malang. Sampel moluska dikoleksi dengan metode hand collecting dan dilakukan analisis visual mikroplastik meliputi bentuk, ukuran, warna dan kelimpahan pada enam spesies moluska yang ditemukan. Serta identifikasi polimer menggunakan ATR-FTIR. Hasil penelitian menunjukkan bahwa karakter mikroplastik yang dominan adalah bentuk fragmen sebanyak 90,86%, fiber 8,29%, film 0,85% dan beads 0,009%. Ukuran dominan mikroplastik pada rentang 20-40 µm sebanyak 42,10%,. Dengan warna ditemui hitam (66,55%), abu-abu, biru, ungu, kuning, oranye, putih, bening, hijau, coklat, dan merah. Kelimpahan mikroplastik pada T. aculeata menunjukkan angka tertinggi secara total (140,13 partikel individu-1), pada N. grossa 116,80 partikel individu-1, N. maxima 138,47 partikel individu-1, N. spengleriana 119,13 partikel individu-1, dan N. polita 129,53 partikel individu-1. Sedangkan total terendah terdapat pada R. sinensis (116,27 partikel individu-1). Jenis polimer mikroplastik yang teridentifikasi adalah polystyrene (PS) dan nilon (poliamida). Perbedaan tingkat akumulasi antar spesies diduga berkaitan dengan perilaku makan dan adaptasi terhadap habitat.
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Microplastics are small plastic particles measuring around <5 mm that are difficult to decompose and degrade in the environment, thus they can contaminate aquatic ecosystems and can accumulate in the bodies of marine biota such as mollusks. Mollusks have a life cycle that can determine the level of pollutant accumulation in their bodies. This research aims to determine the abundance as well as the visual characteristics and chemical polymers of microplastics accumulated in the bodies of six species of mollusks, namely Nerita grossa, Nerita maxima, Nerita spengleriana, Nerita polita, Rhinoclavis sinensis, and Tylothais aculeata in the intertidal zone of Balekambang Beach, Malang Regency. Mollusk samples were collected using hand collecting methods, and a visual analysis of microplastics was conducted, including shape, size, color, and abundance in the six species of mollusks found. Polymer identification was performed using ATR-FTIR. The results showed that the dominant microplastic characters were fragments (90,86%), fiber (8,29%), film (0,85%), and beads (0,009%). The dominant size of microplastics in the range of 20-40 µm was 42,10%, with the colors found being black (66,55%), gray, blue, purple, yellow, orange, white, clear, green, brown, and red. The abundance of microplastics in T. aculeata showed the highest total number (140,13 individual particles-1), in N. grossa 116,80 individual particles-1, N. maxima 138,47 individual particles-1, N. spengleriana 119,13 individual particles-1, and N. polita 129,53 individual particles-1. While the lowest total was found in R. sinensis (116,27 individual particles-1). The types of microplastic polymers identified were polystyrene (PS) and nylon (polyamide). Differences in accumulation levels between species are thought to be related to feeding behavior and adaptation to habitat.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Bioakumulasi, Mikroplastik, Moluska, Pantai Balekambang,Balekambang Coast, Bioaccumulation, Microplastics, Mollusca
Subjects:	Q Science Q Science > QH Biology Q Science > QH Biology > QH541 Ecology
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Nafilah Aulia Amanda
Date Deposited:	01 Aug 2025 01:38
Last Modified:	01 Aug 2025 01:38
URI:	http://repository.its.ac.id/id/eprint/125527

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