Distribution pattern of anthropogenic marine debris along the gastrointestinal tract of green turtles (Chelonia mydas) as implications for rehabilitation

Last modified: 
December 13, 2019 - 9:18pm
Type: Journal Article
Year of publication: 2017
Date published: 06/2017
Authors: André Colferai, Rodolfo Silva-Filho, Aryse Martins, Leandro Bugoni
Journal title: Marine Pollution Bulletin
Volume: 119
Issue: 1
Pages: 231 - 237
ISSN: 0025326X

Pollution from anthropogenic marine debris (AMD) is currently the most widely distributed and lasting anthropic impact in the marine environment, affecting hundreds of species, including all sea turtles. In this study, the patterns of AMD distribution along the gastrointestinal tract (GT) and their relationship with obstructions and faecalomas in 62 green turtles (Chelonia mydas) that died during rehabilitation in southern Brazil were determined. The GT was split in seven sections, corresponding to the natural organs and intestinal areas morphologically and physiologically distinct. Mean mass (4.24 g) and area (146.74 cm2) of AMD in the stomach were higher than in other sections. The anterior portion of the rectum had the highest number of obstructions, followed by the stomach. AMD was associated with the obstructions, with positive correlation between faecalomas and AMD masses. Organs and subdivisions showed marked differences in susceptibility to obstructions caused by AMD, which deserves attention in clinical interventions.

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