气候变化领域集成服务门户(CCPortal): Low concentrations and low spatial variability of marine microplastics in oysters (Crassostrea virginica) in a rural Georgia estuary

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DOI	10.1016/j.marpolbul.2019.110672
	Low concentrations and low spatial variability of marine microplastics in oysters (Crassostrea virginica) in a rural Georgia estuary
	Keisling C.; Harris R.D.; Blaze J.; Coffin J.; Byers J.E.
发表日期	2020
ISSN	0025326X
卷号	150
英文摘要	Microplastics are an emerging concern for the health of marine ecosystems. In the southeastern US, the filter-feeding Eastern oyster, Crassostrea virginica, is susceptible to microplastic ingestion. We quantified the distribution of microplastics within adult oysters (harvestable size >7.5 cm) from 28 reefs throughout a rural estuary with limited riverine inputs (St. Catherines Sound, Georgia). To determine which variables best predict microplastic concentration in oysters, we also quantified oyster recruitment, distance to ocean, fetch, and water body width. Oysters averaged 0.72 microplastic particles per individual (0.18 particles per gram wet mass); microfragments and microplastics were equally abundant. Although microplastic concentrations were low, multivariate models identified a positive effect of water body width on the site-level concentration of plastic microfibers; average microfragment length was affected by fetch. Our work informs a growing understanding of microplastic distribution in coastal estuaries, providing an important rural contrast to the urbanized estuaries that have been examined. © 2019 Elsevier Ltd
英文关键词	Crassostrea virginica; Filter feeders; Microplastics; Multivariate models; Polypropylene
语种	英语
scopus关键词	Ecosystems; Estuaries; Molluscs; Polypropylenes; Rural areas; Shellfish; Crassostrea virginica; Filter feeders; Low concentrations; Microplastic particles; Microplastics; Multivariate models; Southeastern US; Spatial variability; Microplastic; microplastic; plastic; plastic; bivalve; concentration (composition); estuary; filter feeder; ingestion rate; multivariate analysis; plastic waste; polymer; spatial variation; adult; animal experiment; animal tissue; coastal waters; concentration (parameter); controlled study; coral reef; Crassostrea virginica; estuary; Georgia (U.S.); nonhuman; prediction; rural area; sea pollution; sea surface waters; urbanization; animal; Crassostrea; ecosystem; environmental monitoring; estuary; water pollutant; Georgia; Saint Catherines Island; Sea Islands; United States; Crassostrea virginica; Ostreidae; Animals; Crassostrea; Ecosystem; Environmental Monitoring; Estuaries; Georgia; Microplastics; Plastics; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149410
作者单位	Odum School of Ecology, University of Georgia, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Keisling C.,Harris R.D.,Blaze J.,et al. Low concentrations and low spatial variability of marine microplastics in oysters (Crassostrea virginica) in a rural Georgia estuary[J],2020,150.
APA	Keisling C.,Harris R.D.,Blaze J.,Coffin J.,&Byers J.E..(2020).Low concentrations and low spatial variability of marine microplastics in oysters (Crassostrea virginica) in a rural Georgia estuary.Marine Pollution Bulletin,150.
MLA	Keisling C.,et al."Low concentrations and low spatial variability of marine microplastics in oysters (Crassostrea virginica) in a rural Georgia estuary".Marine Pollution Bulletin 150(2020).