Journal
MARINE POLLUTION BULLETIN
Volume 101, Issue 1, Pages 119-126Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2015.11.008
Keywords
Microplastics; Ingestion; Commercial fish; Portugal
Funding
- DOCAPESCA-Portos e Lotas S.A. through Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa
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The digestive tract contents of 263 individuals from 26 species of commercial fish were examined for microplastics. These were found in 17 species, corresponding to 19.8% of the fish of which 32.7% had ingested more than one microplastic. Of all the fish that ingested microplastics, 63.5% was benthic and 36.5% pelagic species. A total of 73 microplastics were recorded, 48 (65.8%) being fibres and 25 (34.2%) being fragments. Polymers were polypropylene, polyethylene, alkyd resin, rayon, polyester, nylon and acrylic. The mean of ingested microplastics was 027 0.63 per fish, (n = 263). Pelagic fish ingested more particles and benthic fish ingested more fibres, but no significant differences were found. Fish with the highest number of microplastics were from the mouth of the Tagus river. Scomber japonicus registered the highest mean of ingested microplastics, suggesting its potential as indicator species to monitor and investigate trends in ingested litter, in the MSFD marine regions. (C) 2015 Elsevier Ltd. All rights reserved.
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