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Compound-specific amino acid isotopic proxies for detecting freshwater resource consumption
Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Archaeological Research Laboratory.ORCID iD: 0000-0002-9926-6524
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2015 (English)In: Journal of Archaeological Science, ISSN 0305-4403, E-ISSN 1095-9238, Vol. 63, 104-114 p.Article in journal (Refereed) Published
Abstract [en]

Of central importance to palaeodietary reconstruction is a clear understanding of relative contributions of different terrestrial (i.e., C3 vs. C4 plants) and aquatic (i.e., freshwater vs. marine) resources to human diet. There are, however, significant limitations associated with the ability to reconstruct palaeodiet using bulk collagen stable isotope compositions in regions where diverse dietary resources are available. Recent research has determined that carbon-isotope analysis of individual amino acids has considerable potential to elucidate dietary protein source where bulk isotopic compositions cannot. Using δ13CAA values for human and faunal remains from Zvejnieki, Latvia (8th – 3rd millennia BCE), we test several isotopic proxies focused on distinguishing freshwater protein consumption from both plant-derived and marine protein consumption. We determined that the Δ13CGly-Phe and Δ13CVal-Phe proxies can effectively discriminate between terrestrial and aquatic resource consumption, and the relationship between essential δ13CAA values and the Δ13CGly-Phe and Δ13CVal-Phe proxies can differentiate among the four protein consumption groups tested here. Compound-specific amino acid carbon-isotope dietary proxies thus enable an enhanced understanding of diet and resource exploitation in the past, and can elucidate complex dietary behaviour.

Place, publisher, year, edition, pages
2015. Vol. 63, 104-114 p.
Keyword [en]
Amino acids, Carbon isotopes, Nitrogen isotopes, Palaeodiet, Zvejnieki, Latvia
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Research subject
Archaeological Science
URN: urn:nbn:se:su:diva-124329DOI: 10.1016/j.jas.2015.08.001ISI: 000365368700012OAI: diva2:884964
Available from: 2015-12-17 Created: 2015-12-17 Last updated: 2016-01-04Bibliographically approved

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Eriksson, GunillaLidén, Kerstin
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