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Title: Postmortem investigations on leatherback sea turtles (Dermochelys coriacea) stranded in the Canary Islands (Spain) (1998–2017): Evidence of anthropogenic impacts
Authors: Orós Montón, Jorge Ignacio 
Camacho Rodríguez, María De Los Ángeles 
Calabuig Miranda,Pascual 
Rial Berriel, Cristian Javier 
Montesdeoca, Natalia
Déniz Suárez, María Soraya 
Pérez Luzardo, Octavio Luis 
UNESCO Clasification: 3105 Peces y fauna silvestre
310907 Patología
Keywords: Canary Islands
Dermochelys Coriacea
Inorganic Elements
Leatherback Sea Turtle
Pathology, et al
Issue Date: 2021
Journal: Marine Pollution Bulletin 
Abstract: Opportunities for postmortem studies on leatherback sea turtles (Dermochelys coriacea) are infrequent due to their predominantly pelagic life history. In this study, the pathological findings and causes of mortality of 13 leatherback turtles stranded in the Canary Islands, Spain, from 1998 to 2017, are described. In addition, concentrations of Se, As, Cd, Pb, Hg, 15 rare earth elements (REE) and other 4 minor elements (ME), 41 persistent organic pollutants, and 16 polycyclic aromatic hydrocarbons in hepatic samples from 5 leatherbacks were determined. 84.62% of the turtles died possibly due to anthropogenic causes (entanglement/fishing interaction - 46.15%; boat strike - 23.07%; plastic ingestion - 15.38%). Although Se, As, and Cd were found at higher hepatic concentrations than those reported for leatherbacks from other locations, no acute lesions were detected. This is the first report of exposure to REE-ME in sea turtles. Organic contaminant hepatic concentrations were generally low or undetectable.
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2021.112340
Source: Marine Pollution Bulletin [ISSN 0025-326X], v. 167, 112340, (Junio 2021)
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