Microplastic accumulation and biomagnification in a coastal marine reserve situated in a sparsely populated area.

Autor: Saley AM; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America; Department of Evolution and Ecology, University of California at Davis, CA 95616, United States of America. Electronic address: amsaley@ucdavis.edu., Smart AC; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America; Department of Evolution and Ecology, University of California at Davis, CA 95616, United States of America., Bezerra MF; Department of Biology, San Diego State University, San Diego, CA 92182, United States of America; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America., Burnham TLU; Department of Biology, San Diego State University, San Diego, CA 92182, United States of America; Department of Wildlife, Fish, and Conservation Biology, University of California at Davis, CA 95616, United States of America., Capece LR; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America; Department of Earth and Planetary Sciences, University of California at Davis, CA 95616, United States of America., Lima LFO; Department of Biology, San Diego State University, San Diego, CA 92182, United States of America., Carsh AC; Department of Biology, San Diego State University, San Diego, CA 92182, United States of America; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America., Williams SL; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America; Department of Evolution and Ecology, University of California at Davis, CA 95616, United States of America., Morgan SG; Bodega Marine Laboratory, University of California at Davis, Bodega Bay, CA 94923, United States of America; Department of Environmental Science and Policy, University of California at Davis, CA 95616, United States of America.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2019 Sep; Vol. 146, pp. 54-59. Date of Electronic Publication: 2019 Jun 06.
DOI: 10.1016/j.marpolbul.2019.05.065
Abstrakt: Toxic chemicals within and adsorbed to microplastics (0.05-5 mm) have the potential to biomagnify in food webs. However, microplastic concentrations in highly productive, coastal habitats are not well understood. Therefore, we quantified the presence of microplastics in a benthic community and surrounding environment of a remote marine reserve on the open coast of California, USA. Concentrations of microplastic particles in seawater were 36.59 plastics/L and in sediments were 0.227 ± 0.135 plastics/g. Densities of microplastics on the surfaces of two morphologically distinct species of macroalgae were 2.34 ± 2.19 plastics/g (Pelvetiopsis limitata) and 8.65 ± 6.44 plastics/g (Endocladia muricata). Densities were highest in the herbivorous snail, Tegula funebralis, at 9.91 ± 6.31 plastics/g, potentially due to bioaccumulation. This study highlights the need for further investigations of the prevalence and potential harm of microplastics in benthic communities at remote locations as well as human population centers.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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