Distribution and typologies of anthropogenic seafloor litter in the Pearl River Estuary and adjacent coastal waters, China

文献类型： 外文期刊

第一作者： He, Mingqiao

作者： He, Mingqiao;He, Mingqiao;Tian, Fei;Zhang, Linbao;Tang, Zhenzhao;Chen, Haigang;Zhai, Xiaohui;Zhou, Kai;Guo, Xiangyu

作者机构：

关键词： Marine pollution; Plastic waste; Pearl River Estuary; Seafloor litter

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.3； 五年影响因子：6.1 ）

ISSN： 0025-326X

年卷期： 2024 年 203 卷

页码：

收录情况： SCI

摘要： Marine litter pollution poses a significant threat to offshore ecosystems, eliciting widespread concern. We investigated seafloor litter patterns in the Pearl River Estuary and adjacent coastal waters of China in 2023 via bottom trawl survey. Average number and weight densities were found to be 154.34 +/- 30.95 n/km2 and 2384.63 +/- 923.98 g/km2, respectively. Plastic was the most abundant material by number density (79.07 %), and rubber the highest by weight density (22.93 %). Overall number density varied from 40.50 +/- 22.50 to 221.13 +/- 52.44 n/km2, with the highest in Daya Bay and the lowest in Guanghai Bay. Weight density varied from 189.93 +/- 71.94 to 5386.70 +/- 3050.30 g/km2, with the highest in Qiao Island and the lowest in Honghai Bay. The main source was plastic bags and wrappers. The Pearl River Delta and Daya Bay were identified as seafloor litter distribution hotspots. Controlling plastic waste input is crucial for reducing seafloor litter in the Pearl River Estuary.

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