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Dietary Reconstruction of the Okhotsk Culture of Hokkaido, Japan, Based on Nitrogen Composition of Amino Acids: Implications for Correction of 14C Marine Reservoir Effects on Human Bones

Yuichi I Naito, Yoshito Chikaraishi, Naohiko Ohkouchi, Hitoshi Mukai, Yasuyuki Shibata, Noah V Honch, Yukio Dodo, Hajime Ishida, Tetsuya Amano, Hiroko Ono, Minoru Yoneda
2010 Radiocarbon: An International Journal of Cosmogenic Isotope Research  

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The relative contribution of marine-derived carbon in the ancient diet is essential for correcting the marine reservoir effect on the radiocarbon age of archaeological human remains. In this study, we evaluated the marine protein consumption of 3 human populations from the Okhotsk culture (about AD 550–1200) in Hokkaido, Japan, based on stable carbon and nitrogen isotopic compositions in bulk bone collagen as well as the nitrogen isotopic composition of glutamic acid and phenylalanine. Despite
more » ... he similarity of carbon and nitrogen isotopic composition of bulk collagens, nitrogen isotopic composition of their constituent amino acids suggests differences in fur seal contributions among northern Hokkaido (0–24% for Kafukai 1, 0–10% for Hamanaka 2) and eastern Hokkaido (78–80% for Moyoro) populations. It suggests that nitrogen composition of glutamic acid and phenylalanine could provide a detailed picture of ancient human subsistence.
doi:10.1017/s0033822200045690 fatcat:ehotdtnb45ghddo4mvtgj4nbja
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Yuichi I Naito, Yoshito Chikaraishi, Naohiko Ohkouchi, Hitoshi Mukai, Yasuyuki Shibata, Noah V Honch, Yukio Dodo, Hajime Ishida, Tetsuya Amano, Hiroko Ono, Minoru Yoneda. "Dietary Reconstruction of the Okhotsk Culture of Hokkaido, Japan, Based on Nitrogen Composition of Amino Acids: Implications for Correction of 14C Marine Reservoir Effects on Human Bones." Radiocarbon: An International Journal of Cosmogenic Isotope Research 52.02 (2010) 671-681