International Marmara Sciences Congress (Autumn) 2019, Kocaeli, Türkiye, 1 - 03 Kasım 2019, ss.1196-1199
Environmental pollution caused by plastic waste is a growing global problem. Discarded plastic products and debris (microplastic particles) in the oceans detrimentally affect marine ecosystems and may impact humans. 60-80% of marine litter represented by plastic debris. Plastic litter in environment usually breaks down into small particles and these are called as microplastics and their dimensions are under five millimeters. They can easily accumulate in aquatic environments and cause harmful effects on aquatic habitats. Polypropylene (PP) is one of the plastic polymer with world wide usage and highest global production. Because of these facts, PP is one of the most identified marine litter. Our study it was aimed to investigate the effects of PP microparticles on the zebrafish digestive system. For that purpose, zebrafish specimens were exposed to four different ( 0.05, 0.1, 0.2, 0.4 ppm) PP concentrations during 96 hours. After exposure duration, zebrafishes were dissected and digestive system tissues were fixed with bouin. Tissues were prepared and stained according to the routine histological procedures and examined under light microscopy. Experiment groups compared with control groups and histopathological chances were reported. Keywords: Polypropylene, microplastic, zebrafish, digestive system.