The influences of spatial-temporal variability and ecological drivers on microplastic in marine fish in Hong Kong

被引:4
|
作者
Lo, Hoi Shing [2 ]
Wong, Leung Chun [3 ]
Lai, Keng Po [1 ,3 ,4 ]
Cheung, Siu Gin [3 ,4 ]
机构
[1] Guilin Med Univ, Educ Dept Guangxi Zhuang Autonomous Reg, Key Lab Environm Pollut & Integrat Om, Guilin, Peoples R China
[2] Stockholm Univ, Dept Environm Sci, SE-10691 Stockholm, Sweden
[3] City Univ Hong Kong, Dept Chem, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
[4] City Univ Hong Kong, State Key Lab Marine Pollut, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
Microplastic; Feeding mode; Trophic transfer; Marine litter; Fish; PEARL RIVER ESTUARY; PLASTIC DEBRIS; TROPHIC LEVEL; SEA; INGESTION; EXPOSURE; WATERS; ENVIRONMENT; ORGANISMS; ABUNDANCE;
D O I
10.1016/j.envpol.2023.121527
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study examined microplastic (MP) occurrence and abundance in marine fish collected from the western and eastern waters of Hong Kong during the wet and dry seasons. Over half (57.1%) of the fish had MP in their gastrointestinal (GI) tracts, with overall MP abundance ranging from not detected to 44.0 items per individual. Statistical analysis revealed significant spatial and temporal differences in MP occurrence, with fish from more polluted areas having a higher likelihood of MP ingestion. Additionally, fish collected in the west during the wet season had significantly higher MP abundance, likely due to influence from the Pearl River Estuary. Omnivorous fish had significantly higher MP counts than carnivorous fish, regardless of collection location or time. Body length and weight were not significant predictors of MP occurrence or abundance. Our study identified several ecological drivers that affect MP ingestion by fish, including spatial-temporal variation, feeding mode, and feeding range. These findings provide a foundation for future research to investigate the relative importance of these factors in governing MP ingestion by fish in different ecosystems and species.
引用
收藏
页数:8
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