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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Gut & Microbiome Marine & Wildlife Sign in to save

Microplastic fragments in digestive tracts of fish from the coastal waters of Kuantan, Pahang

2021
Nur Raihanah Abdul Rahman, Mohd Fuad Miskon, Azaima Razali

Summary

Researchers found microplastic fragments in the digestive tracts of five fish species bought at markets in Kuantan, Malaysia, with all species showing contamination. Fibres and fragments were the most common types, indicating widespread microplastic exposure in coastal Malaysian marine environments.

Body Systems

A pilot study of microplastics ingestion by the marine biota was carried out in Kuantan area. Fish samples consisting of five species were obtained from the fish markets in Kempadang and Pantai Sepat, Kuantan, Pahang. These fish are typically caught around 5 nautical miles from the coast. The gastrointestinal tracts of the fish were dissected and placed in 80 % of ethanol for preservation. Then, a 10 M of NaOH alkaline solution was used to digest the gastrointestinal tracts before it was filtered to isolate the microplastics. The physical characteristics of microplastics were analyzed under the microscope. Types of polymer of the isolated microplastics were identified using Fourier-transform infrared (FTIR) spectroscopy. The result showed the most found microplastics in the gastrointestinal gut was polyacrylamide. Additionally, the most abundant shape of microplastics found was threadlike. It can be suggested that the presence of threadlike microplastics is due to the fishing activities in the area.

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