Impacts of macro - and microplastic on macrozoobenthos abundance in intertidal zone

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Bangun, A.P.^1 ; Wahyuningsih, H.^2 ; Muhtadi, A.^1

Department of Aquatic Resources Management, Faculty of Agriculture, Universitas Sumatera Utara, Jl. Prof A. Sofyan No. 3, Medan, North Sumatera

20155, Indonesia^1

Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan, North Sumatera

20155, Indonesia^2

关键词: Coastal area;    Intertidal zones;    Macrozoobenthos;    Management strategies;    Marine debris;    Micro plastics;    Plastic wastes;    Sediment densities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012102/pdf
DOI  :  10.1088/1755-1315/122/1/012102

来源: IOP

【 摘 要 】

Plastics pollution in coastal areas is one of the topics that have received more attention over the past few years. The 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. Macrozoobenthos and macro - micro plastic were collected by using quadratic transect. Sediments were collected with a core, to a depth of 30 cm. Microplastic and macroplastic abundances were analyzed using separation of sediment density and hand sorting. The dominant micro plastic types were film (52.30%), fiber (24.88%), fragments (22.74%), followed by pellets (0.1%). The total number of microplastics were 326,33 items and macro plastic were 308 items. Macroplastic abundance is positively correlated with microplastic (0.765). The abundance of macrozoobenthos is negatively correlated with microplastic abundance (-0.368) and with macro plastic abundance (-0.633). The management strategies were suggested clean up marine debris, decrease plastic using and built up the station of debris processing.