کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9456535 | 1309201 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dietary mercury exposure and bioaccumulation in amphibian larvae inhabiting Carolina bay wetlands
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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چکیده انگلیسی
Inorganic mercury and methylmercury concentrations were measured both in guts and remaining carcasses of southern leopard frog (Rana sphenocephala) larvae from 10 Carolina bay wetlands in South Carolina, USA. Significant variation among bays in methylmercury and inorganic mercury concentrations existed both in guts and carcasses. There was a moderate negative correlation between dissolved organic carbon concentration in bays and mean inorganic mercury concentrations in guts. There was also a weak positive correlation between pH in bays and mean methylmercury concentrations in carcasses. The ratio of methylmercury to inorganic mercury decreased with increasing total mercury concentration in guts and in larvae, but the rate of decrease was highly variable among bays. Ratios of concentrations in carcasses to concentrations in guts were inversely related to gut concentration. Mercury concentrations in carcasses in some bays were within the range of concentrations at which adverse effects have been observed in laboratory studies of R. sphenocephala.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 135, Issue 2, May 2005, Pages 245-253
Journal: Environmental Pollution - Volume 135, Issue 2, May 2005, Pages 245-253
نویسندگان
J.M. Unrine, C.H. Jagoe, A.C. Brinton, H.A. Brant, N.T. Garvin,