Identification of microplastics in the digestive tract of Great Egret ( Egretta alba) in Percut Sei Tuan, North Sumatra

Abstract

Microplastics are plastic waste particles that enter aquatic environments and subsequently break down into smaller fragments. The presence of microplastics in aquatic birds can lead to reduced fat deposits, increased chemical toxicity, physical damage to the intestines, and negative impacts on reproduction and survival, especially for species that feed in aquatic areas. Tanjung Rejo is a significant stopover site for waterbirds and an ecotourism destination. The objective of this research was to analyze and identify the shape, color, and size of microplastics in the digestive tract of great egrets found in Percut Sei Tuan. The results indicated that the great egrets (Egretta alba) had 15 microplastic particles in their stomachs and 13 particles in their intestines, with fibers or microfibers being the most common type of microplastics. The presence of microplastics in both the stomach and intestines shows that the birds are contaminated by plastic waste, reflecting significant pollution in their environment. This contamination threatens animal health, causing issues from organ damage to physical deformities. It is essential to address this pollution to protect and restore ecosystems, ensuring the survival of the wildlife within them.