کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4551203 1328282 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trace element concentrations in nesting flatback turtles (Natator depressus) from Curtis Island, Queensland, Australia
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Trace element concentrations in nesting flatback turtles (Natator depressus) from Curtis Island, Queensland, Australia
چکیده انگلیسی

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 μg/L followed by copper (7.74 ± 0.09 μg/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.

Research highlights
► Further developed and applied methods to determine trace element concentrations in the blood and eggs of a carnivorous marine turtle (Natator depressus).
► Trace elements in the blood are maternally transferred into the eggs.
► Eggs are more representative than blood for determining maternal levels of trace element accumulation.
► One egg is not sufficient to determine trace element accumulation within a clutch.
► Tin compounds are not accumulated in N. depressus eggs from Curtis Island.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 71, Issue 1, February 2011, Pages 10–16
نویسندگان
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