Kelimpahan dan Jenis Mikroplastik pada Sedimen Lamun di Perairan Nusa Dua, Bali

The Indonesian archipelago, especially Bali, has extensive coastline and marine waters. However, it is undeniable that some of these waters contain much plastic waste. Nusa Dua are located in the Bali Province area with many complex activities, ranging from port water sports, tourism, restaurants, hotels, fishing others, so they have a high potential for waste pollution. Plastic floats ocean will degrade become small debris called microplastics. Marine divided into several varieties based on size. It microplastic those less than 5 millimeters length; above mm up to 25 mm, mesoplastic. This study aimed determine abundance types microplastics found Dua. research was conducted November-Desember 2021. Sampling carried out situ simple random sampling method 400 grams each sample at ten stations. Sediment using shovel. Then ex-situ processing by drying wet sediment, weighing dry density separation, filtering, visual sorting. results showed seagrass sediments were contaminated microplastic. Four found: fragment, fiber/filament, film/soft plastic, foam. As as 17 particles fragment type dominates. dominant color blue. highest total station 6, 35.1 particles/kg different densities species station. itself reaches range 1.2 stands/m2