کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426815 1309136 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tissue heavy metal concentrations of stranded California sea lions (Zalophus californianus) in Southern California
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Tissue heavy metal concentrations of stranded California sea lions (Zalophus californianus) in Southern California
چکیده انگلیسی

Concentrations of nine heavy metals (As, Cd, Cu, Fe, Hg, Pb, Mn, Mo and Zn) were determined in the hepatic and renal tissues of 80 stranded California sea lions (Zalophus californianus). Significant age-dependant increases were observed in liver and kidney concentrations of cadmium and mercury, and renal zinc concentrations. Hepatic iron concentrations were significantly higher in females than males. Animals with suspected domoic acid associated pathological findings had significantly higher concentrations of liver and kidney cadmium; and significantly higher liver mercury concentrations when compared to animals classified with infectious disease or traumatic mortality.Significantly higher hepatic burdens of molybdenum and zinc were found in animals that died from infectious diseases. This is the largest study of tissue heavy metal concentrations in California sea lions to date. These data demonstrate how passive monitoring of stranded animals can provide insight into environmental impacts on marine mammals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 147, Issue 3, June 2007, Pages 677–682
نویسندگان
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