Journal
MARINE POLLUTION BULLETIN
Volume 96, Issue 1-2, Pages 491-495Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2015.05.001
Keywords
Microplastics; Pollution; Polystyrene; Hepatopancreas; Deposit feeder; Uca rapax
Funding
- Mullverbrennung Kiel (MVK)
- CAPES foundation
- CNPq
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Microplastics, which are accumulating in marine sediments, are assumed to pose a risk for deposit feeding invertebrates. We tested whether the fiddler crab Uca rapax ingests and retains microplastics in its body. Furthermore, we investigated whether retention rates depend on (a) the quality of the marine environment in which the plastics were pre-weathered and on (b) their abundance. For this, polystyrene pellets were submersed at a polluted and a pristine site near Niteroi, Brazil, for 2 weeks. Then specimens of U. rapax were, in laboratory experiments, exposed to fragments (180-250 mu m) derived from these pellets for 2 months. After this period, microplastics were observed in the gills, stomach and hepatopancreas of the animals. However, fragment retention was not influenced by the two factors that we manipulated. The presence of microplastics in different organs of the crab supports the assumption that these particles have the potential to harm marine invertebrates. (C) 2015 Elsevier Ltd. All rights reserved.
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