Journal
JOURNAL OF VETERINARY MEDICAL SCIENCE
Volume 79, Issue 12, Pages 2043-2047Publisher
JAPAN SOC VET SCI
DOI: 10.1292/jvms.16-0652
Keywords
marine pollution; Okinawa Main Island; particle induced X-ray emission; sea turtle; Yaeyama Island
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Funding
- Asahi Group Foundation
- Grants-in-Aid for Scientific Research [26450431, 15K00568] Funding Source: KAKEN
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The purpose of this study was to compare the concentration of trace elements in the plasma of sea turtles that inhabited the suburban (Okinawa Main Island, n=8) and the rural coast (Yaeyama Island, n=57) in Okinawa, Japan. Particle induced X-ray emission allowed detection of 20 trace and major elements. The wild sea turtles in the suburban coast in Okinawa were found to have high concentrations of Pb, Si and Ti in the plasma when compared to the rural area but there were no significant changes in the Al, As and Hg concentrations. These results may help to suggest the status of some elements in a marine environment. Further, monitoring the plasma trace and major element status in sea turtles can be used as a bio-monitoring approach by which specific types of elements found here could indicate effects that are related to human activities.
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