Accumulation of Microplastics in the Digestive Tract and Gonads and its Effects on Gonad Quality of Sea urchins Tripnesutes gratilla

Marine plastic debris that is transported will move with the flow of water and float then be degraded into smaller particles, namely microplastics, sink settle on substrate. Sea urchins as deposit feeders have potential to ingest microplastic where these particles can influence changes in behavior, growth, enzyme production, reproduction, tissue structure. This study used a purposive sampling method descriptive analysis for data related recording morphometrics gonadal quality well follow-up tests Tukey test Pearson test. aims analyze how accumulation microplastics organs (digestive tract gonads) affects sea Tripneustes gratilla. The results showed number found digestive was 233 particles/individual gonads were 205 color variants transparent, multicolor, blue, yellow, red, green, purple. Gonadal assessment indicators are color, firmness, index. Gonads good shown by from Laha beach (site 1) composition 40% bright orange, yellow/pale 20% very firm 80% not firm20%, index value 7.57 %. In contrast, poor Erie 4) brown gray, 60% firm, 3.08%. difference thought result urchin which causes satiated delusion.