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      Distribusi Spasial dan Karakteristik Mikroplastik pada Pesisir Selatan Jawa sampai Selat Bali

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      Date
      2026
      Jenis/Type
      Tesis
      Subtype
      Theses
      Author
      Sedayu, Muhammad Agung
      Zamani, Neviaty Putri
      Bengen, Dietriech Geoffrey
      Mardiastuti, Ani
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      Abstract
      Pencemaran mikroplastik merupakan isu global yang penting, dengan Indonesia sebagai salah satu negara penyumbang sampah plastik terbesar di dunia. Wilayah pesisir selatan Pulau Jawa memiliki karakteristik pantai yang khas karena berhadapan langsung dengan Samudra Hindia. Namun, kajian mengenai distribusi spasial mikroplastik di wilayah ini masih sangat terbatas. Penelitian ini bertujuan untuk menganalisis kelimpahan mikroplastik pada air laut dan sedimen, membandingkan profil kelimpahan mikroplastik, mengidentifikasi karakteristik mikroplastik, serta menganalisis hubungan kelimpahan mikroplastik pada air laut dan sedimen di setiap lokasi penelitian. Sampel diambil dari lima lokasi pantai, yaitu Teluk Penyu, Kukup, Kondang Merak, Papuma, dan Bangsring. Metode analisis laboratorium yang dilakukan meliputi pengeringan, pemisahan densitas dengan larutan ZnCl2, degradasi zat organik menggunakan H2O2, serta penyaringan menggunakan kertas saring Whatman 0,45 µm. Identifikasi dilakukan menggunakan mikroskop stereo dan FTIR spectroscopy. Data selanjutnya dianalisis secara statistik dengan uji One-Way ANOVA dan uji Duncan menggunakan perangkat lunak SPSS. Berdasarkan hasil pengamatan, mikroplastik ditemukan di seluruh lokasi penelitian. Di mana profil kelimpahan pada air laut menunjukkan perbedaan nyata (p < 0,05) antarlokasi penelitian dengan kelimpahan tertinggi pada Pantai Kukup (78,40 ± 22,21 partikel/100 L). Sebaliknya, pada sedimen tidak ditemukan adanya perbedaan nyata antarlokasi, walaupun secara deskriptif Pantai Teluk Penyu memiliki kelimpahan tertinggi. Secara karakteristik, bentuk morfologi yang paling dominan ditemukan pada air laut adalah fragmen (64,92%), sementara pada sedimen didominasi oleh fiber (77,64%). Warna putih menjadi warna yang paling banyak ditemukan pada mikroplastik di air laut dan sedimen. Analisis FTIR berhasil mengidentifikasi jenis polimer seperti Polyacrylamide (PAM), Polyaramid, Ethylene-vinyl alcohol copolymer (EVOH), dan Neoprene. Hasil penelitian menjadi indikasi bahwa air laut bersifat lebih dinamis dan banyak dipengaruhi oleh faktor hidrodinamika, sedangkan sedimen berperan sebagai reservoir alami bagi mikroplastik.
       
      Microplastic pollution has become a global environmental issue, with Indonesia ranked as one of the world’s waste contributors. The southern coast of Java Island has unique beach characteristics as it borders the Indian Ocean. However, comparative studies on the spatial distribution of microplastics across this region are still limited. This study aims to analyze the abundance of microplastics in seawater and sediment, compare the distribution profile across locations, identify the physical characteristics of microplastics and polymer types, and analyze the relationship between microplastic abundance in seawater and sediment in each research location. Samples were collected from five locations: Teluk Penyu, Kukup, Kondang Merak, Papuma, and Bangsring Beaches. Laboratory methods included drying, density separation using ZnCl2, organic matter degradation using H2O2, and filtration using 0,45 µm Whatman filters. Identification was conducted via a stereo microscope and FTIR spectroscopy for polymer characterization. Data were statistically analyzed using One-Way ANOVA and Duncan’s tests using SPSS software. Microplastics were identified at all research sites. The abundance profile reveals significant differences (p < 0,05) in seawater microplastic abundance between locations, with the highest concentration found at Kukup Beach (78,40 ± 22,21 particles/100 L). Different from sediment samples that showed no significant spatial variation, although Teluk Penyu Beach descriptively recorded the highest abundance. In terms of characteristics, fragments were the most dominant morphological form found in seawater (64,92%), while fibers were dominant in sediments (77,64%). White color was the most frequently observed color for microplastics in both seawater and sediments. FTIR analysis successfully identified polymer types such as Polyacrylamide (PAM), Polyaramid, Ethylene-vinyl alcohol copolymer (EVOH), and Neoprene. The results indicate that seawater is more dynamic and heavily influenced by hydrodynamic factors, while sediments serve as a natural reservoir for microplastics.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/177973
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      • MF - Fisheries [3363]

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      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository