Cemaran Mikroplastik pada Ikan dan Lobster Keramba Jaring Apung (KJA) di Danau Toba

Abstract

Microplastic contamination in aquatic environments has become a significant global issue, affecting both ecosystems and human health. This study aims to identify the presence, abundance, and types of microplastics in fish species such as Cyprinus carpio (common carp), Oreochromis niloticus (Nile tilapia), Clarias batrachus (walking catfish), Oreochromis mossambicus (Mozambique tilapia), Amphilophus labiatus (red devil cichlid), and Cherax quadricarinatus (red claw crayfish) cultivated in floating net cages (KJA) in Lake Toba. The research was conducted at various stations around the lake, collecting samples for laboratory analysis.The results indicate that microplastic particles, including fragments, fibers, films, foams, and Pelets, were found in the digestive organs and tissues of the studied aquatic organisms. The highest microplastic abundance in the digestive organs was found in Oreochromis mossambicus (66.66 particles/gram) during the dry season and in Cherax quadricarinatus (290 particles/gram) during the rainy season. In the muscle tissue, the highest microplastic abundance was found in Oreochromis niloticus (35 particles/gram) during the dry season and in Cherax quadricarinatus (65 particles/gram) during the rainy season. The most common type of microplastic identified was fragments, with varying concentrations depending on location and season. The findings highlight the potential risks of microplastic contamination in aquaculture and the need for further research and environmental management strategies to mitigate its impact