Microplastic Accumulation in Catfish and Its Effects on Fish Eggs from Songkhla Lagoon, Thailand

Microplastics have been found to accumulate in freshwater, marine ecosystems, and biological organisms. The frequency of studies on microplastic contamination organs has increased recently, although there relatively fewer investigations fish eggs Thailand. To extract microplastics from catfish samples for laboratory analysis (Osteogeneiosus militaris), we used 10% potassium hydroxide the digestion process. A needle penetrated investigate contamination. We examined under a stereomicroscope Fourier transform infrared spectroscopy determine type polymer. organs, most commonly stomach (0.91 ± 0.13 items/g), followed by tissue (0.53 0.09 gills (0.30 0.03 items/g) at level significance p < 0.01. total 349 with 27 items microplastic. dominant stomach, tissue, fish, as well eggs, was fiber shape. noted that fragments were only fish. color black blue eggs. common polymer types polyethylene terephthalate, polypropylene, cellulosic fiber.