We measured stable-carbon ( 1 3 C / 1 2 ~) and/or nitrogen (l5N/l4N) isotope ratios in 322 tissue samples (minus lipids) representing 43 species from primary producers through polar bears Ursus maritimus in the Barrow Strait-Lancaster Sound marine food web during July-August, 1988 to 1990. 613C rang...
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