Journal
MARINE ENVIRONMENTAL RESEARCH
Volume 71, Issue 1, Pages 10-16Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2010.09.003
Keywords
Flatback turtles; Natator depressus; Trace element; Nesting turtles; Environmental contamination
Funding
- Australian Research Council [LP0455513]
- Australian Research Council [LP0455513] Funding Source: Australian Research Council
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The blood and eggs of the flatback turtle (Natator depressus) sampled when nesting at Curtis Island, Queensland, Australia. In the blood, zinc was present at the highest concentration of 151.15 +/- 1.45 mu g/L followed by copper (7.74 +/- 0.09 mu g/L). Lead was found only in some individuals. The measured trace elements in the blood were maternally transferred into the eggs. Other metals and metalloids detected in eggs were chromium, manganese, arsenic and selenium. Eggs showed a more complex trace element profile than blood, suggesting that they provided more representative tissues for determining maternal levels of trace element accumulation in N. depressus. Intra-clutch variation was over 15% for most of the studied trace elements suggesting one egg is not in sufficient to determine trace element accumulation within a clutch. Copper was the only element which was positively correlated with breeding age. Furthermore, no detectable levels of tin compound derivates were measured in N. depressus. (C) 2010 Elsevier Ltd. All rights reserved.
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