Ingested microplastics (>100 μm) are translocated to organs of the tropical fiddler crab Uca rapax.

Brennecke, Dennis, Ferreira, Erica C., Costa, Tarso M. M., Appel, Daniel, da Gama, Bernardo and Lenz, Mark (2015) Ingested microplastics (>100 μm) are translocated to organs of the tropical fiddler crab Uca rapax. Marine Pollution Bulletin, 96 (1-2). pp. 491-495. DOI 10.1016/j.marpolbul.2015.05.001.

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Supplementary data:

Abstract

Highlights:
• Microplastic fragments were found in gills, stomach and hepatopancreas of Uca rapax.
• Retention was not influenced by fragment preweathering and fragment abundance.
• Presence of microplastics in organs shows their potential to harm marine organisms.

Abstract:
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 Niterói, Brazil, for 2 weeks. Then specimens of U. rapax were, in laboratory experiments, exposed to fragments (180–250 μm) 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.

Document Type: Article
Additional Information: WOS:000357348900064
Keywords: Microplastics; Pollution; Polystyrene; Hepatopancreas; Deposit feeder; Uca rapax
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-B Experimental Ecology - Benthic Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/j.marpolbul.2015.05.001
ISSN: 0025-326X
Projects: GAME
Date Deposited: 03 Jun 2015 09:40
Last Modified: 31 Jul 2015 08:47
URI: http://oceanrep.geomar.de/id/eprint/28919

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