RITONGA, AFIFAH IKHWANI (2026) PERBANDINGAN KANDUNGAN MIKROPLASTIK PADA TIRAM (Saccostrea sp.) DAN SEDIMEN DI PERAIRAN KOTA LHOKSEUMAWE. S1 thesis, UNIVERSITAS MALIKUSSALEH.

	Text cover_afifah_ikhwani_ritonga_220340031.pdf Download (335kB)
	Text ABSTRACT_afifah_ikhwani_ritonga_220340031.pdf Download (446kB)
	Text bab 1_afifah_ikhwani_ritonga_220340031.pdf Download (453kB)
	Text DAFTAR PUSTAKA_afifah_ikhwani_ritonga_220340031.pdf Download (473kB)
	Text SKRIPSI MP AFIFAH RTG.pdf Restricted to Registered users only Download (1MB)

Abstract

ABSTRACT The increasing use of plastic has led to a rise in microplastic pollution in coastal waters, which can accumulate in filter-feeding organism such as oysters (Saccostrea sp.) as well as in bottom sediments. This study aimed to identify the abundance and types of microplastics in oysters and sediments and to compare their abundance in the coastal waters of Lhokseumawe City. The research was conducted from May to June 2026 using a descriptive quantitative survey method with a purposive sampling approach at three stations representing a river estuary, a floating net cage aquaculture area, and a settlement/tourism area. Oysters samples were collected by direct sampling, while sediment samples were collected using an Ekman grab. Microplastics were identified through digestion with 30% H2O2 (for oysters) and density separation using saturated NaCl solution (for sediments), followed by microscopic observation. Differences in abundance between the two media were tested using the Mann-Whitney U test after the data were found to be non-normally distributed. Five types of microplastics were identified at all stations (fiber, fragmen, film, foam, and filamen) while pellets were not found. Microplastics abundance in oysters ranged from 1109,23 to 1.435,64 particles/g, significantly higher than in sediments, which ranged from 316.20 to 391.32 particles/g, a difference of about 3–4 times. The Mann-Whitney U test showed a significance value of p < 0.001, indicating a highly significant difference in microplastic abundance between oysters and sediments. Fiber and fragmen were the dominant types in both media, likely originating from domestic, fishery, and aquaculture activities around the study sites. These findings confirm that oysters have potential as bioindicators of microplastic pollution in coastal waters and highlight potential risks to seafood safety that warrant further investigation, such polymer identification using FTIR. Keywords: Lhokseumawe, microplastics, oyster, Saccostrea sp., sediment

Item Type:	Thesis (S1)
Subjects:	G Geography. Anthropology. Recreation > GC Oceanography S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Fakultas Pertanian > 11901 - Jurusan Ilmu Kelautan
Depositing User:	Afifah Ritonga
Date Deposited:	24 Aug 2026 03:59
Last Modified:	24 Aug 2026 03:59
URI:	https://rama.unimal.ac.id/id/eprint/21515

Actions (login required)

View Item