کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739248 1016840 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cs-137 in Arctic foxes (Alopex lagopus) on Svalbard
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Cs-137 in Arctic foxes (Alopex lagopus) on Svalbard
چکیده انگلیسی

This study presents 137Cs muscle activity concentrations in Arctic foxes (Alopex lagopus) from Svalbard over a period of several years and discusses the transfer of 137Cs to Arctic foxes through likely predator–prey relationships. Mean 137Cs activity concentrations and 137Cs Tag values (per trapping season) ranged from 0.51 ± 2.76 to 1.32 ± 2.89 Bq/kg (w.w.) and 5.1 × 10−4 to 1.3 × 10−3 m2/kg, respectively. Mean concentration ratios of 137Cs in Arctic foxes compared to probable prey ranged from 1.0 to 7.9. On Svalbard, transfer of 137Cs to Arctic foxes is likely to occur via both marine and terrestrial food chains. The relative contribution of marine and terrestrial food sources to the diet of Arctic foxes may vary by location and by season and may lead to either an increase or decrease in the trophic transfer of 137Cs to Arctic foxes compared to transfer resulting from terrestrial only diets.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 92, Issue 1, 2007, Pages 30–40
نویسندگان
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