Microplastic Analysis in Vannamei Shrimp Ponds in Kandang Semangkon Village, Paciran, Lamongan, East Java, Indonesia

This research was conducted at vannamei shrimp ponds in Kandang Semangkon Village, Paciran District, Lamongan Regency, focusing on cultivation management and microplastic analysis at stations 1 and 2. Each station was sampled from three pond plots. The main objectives of the study are to analyze the abundance, types, and colors of microplastics in water media and shrimp tissue, and examine the relationship between water quality parameters, specifically total suspended solids (TSS), and the presence of microplastics. The observation results showed that the abundance of microplastics at station 1 tended to be higher in the water due to the process of plastic photodegradation, while accumulation in shrimp varied depending on environmental factors. The dominant type of microplastic is fragments, black in color, likely originating from the degradation of dark-colored plastic equipment. The range of microplastic abundance at Station one was 2100-30500 particles/L, while at station two it was 4000-15000 particles/L. Regression analysis indicates a positive relationship between TSS values and microplastic abundance, with the pattern of the relationship between TSS and microplastic abundance at station 2 showing a stronger influence compared to Station 1. The significance values (R²) of the relationship between microplastics in water and microplastics in shrimp were 0.649 at Station 1 and 0.738 at Station 2. Furthermore, the relationship between TSS and microplastics in water showed R² values of 0.540 at Station 1 and 0.660 at Station 2. These results indicate a strong correlation pattern. This finding confirms that the presence of microplastics has the potential to affect the quality of aquaculture and the safety of fishery products.