Jenis dan Kelimpahan Sampah Laut (Makro dan Mikro Plastik)Serta Dampaknya Terhadap Kelimpahan Makrozoobenthos Di Pesisir Desa Jaring HalusKabupaten Langkat Provinsi Sumatera Utara

Abstract

Plastics pollution in coastal areas is one of the topics that has received more attention over the past few years. Intertidal zone is a waters area that is directly affected by contamination of plastic waste from land and sea. The purpose of this study was to analyze the types and abundance of plastic waste in the intertidal zone and its impact on macrozoobenthos abundance. This research was conducted at Pesisir Desa Jaring Halus in February-April 2017. Makrozobenthos and macro- microplastic were collected by using quadratic transect. Sediments were collected with corers, to a depth of 30 cm. Microplastic and macroplastic abundances were analyzed using separation of sediment density and hand sorting. The dominant microplastic types were film type (50.49%), fiber (26.43%), fragments (22.93%), followed by pellets (0.15%). The total number of microplastics is 8805 items and macroplastic is 920 items. Macroplastic abundance is positively correlated with microplastic (0.765). The abundance of macrozoobentos is negatively correlated with microplastic abundance (-0.368) and with macroplastic abundance (-0.633).