Characteristics of microplastics in the digestive system of spotted scat (Scatophagus argus) from Pangempang, Muara Badak, Kutai Kartanegara, East Kalimantan
DOI:
https://doi.org/10.30872/ht7tds07Keywords:
marine, biota, pollution, tropical, consumption fishAbstract
Indonesia produces approximately 5.4 million tons of marine debris, making it the second-largest contributor of ocean waste in the world. This fact illustrates that all plastic waste discarded on land eventually ends up in the ocean. This study aims to understand the characteristics of microplastics in spotted scat (Scatophagus argus) and to determine whether there is a relationship between the length of the fish and the abundance of microplastics. The procedure involved several stages, including literature review, field surveys, sample collection, dissection of the fish’s digestive tract, and identification of microplastics using a Relife RL-M3T microscope at 10–20X magnification. Microplastic particles were separated using 22% KOH and 20% H₂O₂ solutions. The results showed that, from 10 fish samples analyzed, a total of 182 microplastic particles were found. The most dominant type was fiber, followed by film and fragment, with an average abundance of 18.2 particles per individual. This research is expected to serve as a reference for the sustainable management of aquatic environments and to provide essential information for plastic waste control policies.
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