Spatio-temporal features of microplastics pollution in macroalgae growing in an important mariculture area, China

The Science of the Total Environment
Zhihua FengGuang Gao

Abstract

Macroalgae are being consumed by a growing number of people as functional food. Therefore, they are intensively cultivated to meet the rising demand. Mariculture is a potential source of microplastics (MPs). However, as a potential source of microplastics, little is known regarding the MPs pollution in macroalgae of open sea macriculture. Here we investigated the MPs characteristics in macroalgae in three sections of Haizhou Bay, an important mariculture area in China, during Pyropia culture (Pyropia yezoensis) and non-culture periods (Ulva prolifera, Sargassum horneri, Cladophora sp., Undaria pinnatifida, Ulva pertusa). It was found that P. yezoensis during the culture period had higher MPs abundance (0.17 ± 0.08 particles g-1fresh weight) than other macroalgae (0.12 ± 0.09 particles g-1 fresh weight) during the non-culture period, particularly for the nearshore sections. There were more fiber MPs in P. yezoensis (90.43%) in culture period compared to macroalgae (84.46%) in non-culture period. Highly similar spectrum of plastics in culture gears and macroalgae was verified. Pyropia culture gears released about 1, 037 tons plastics into the environment annually and the MPs abundances in seawater during the culture and non-cultu...Continue Reading

Citations

Nov 14, 2020·The Science of the Total Environment·Yuanqiang TangZisong Yang
May 4, 2020·The Science of the Total Environment·Zhihua FengGuang Gao
May 16, 2021·The Science of the Total Environment·Xiangyu YangFeng Ju
Aug 4, 2021·Marine Pollution Bulletin·E E EsiukovaI P Chubarenko

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