Ingestion of marine litter by loggerhead sea turtles, Caretta caretta, in Portuguese continental waters

Marine Pollution Bulletin
Lídia NicolauCatarina Eira

Abstract

The accumulation of litter in marine and coastal environments is a major threat to marine life. Data on marine litter in the gastrointestinal tract of stranded loggerhead turtles, Caretta caretta, found along the Portuguese continental coast was presented. Out of the 95 analysed loggerheads, litter was present in 56 individuals (59.0%) and most had less than 10 litter items (76.8%) and less than 5 g (dm) (96.8%). Plastic was the main litter category (frequency of occurrence=56.8%), while sheet (45.3%) was the most relevant plastic sub-category. There was no influence of loggerhead stranding season, cause of stranding or size on the amount of litter ingested (mean number and dry mass of litter items per turtle). The high ingested litter occurrence frequency in this study supports the use of the loggerhead turtle as a suitable tool to monitor marine litter trends, as required by the European Marine Strategy Framework Directive.

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Citations

Apr 19, 2016·Marine Pollution Bulletin·Peter G RyanVonica Perold
Jun 13, 2016·Marine Pollution Bulletin·Rebecca SuttonCarolynn Box
Aug 31, 2016·Environmental Pollution·Sherri A MasonDarrin L Rogers
Sep 15, 2016·Environmental Science & Technology·Austin K BaldwinSherri A Mason
Nov 13, 2018·Environmental Science and Pollution Research International·Eleonora StaffieriCorrado Battisti
May 16, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·P AgamuthuA Norkhairiyah
Nov 21, 2018·Environmental Science and Pollution Research International·Corrado BattistiFulvio Cerfolli
Mar 23, 2021·Archives of Environmental Contamination and Toxicology·Mahmood SinaeiJavad Ghasemzadeh
Dec 7, 2018·Marine Pollution Bulletin·Giuseppe Bonanno, Martina Orlando-Bonaca
May 26, 2020·Ecotoxicology and Environmental Safety·Joana C PrataTeresa Rocha-Santos

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