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Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery.

Orton, D.C., Makowiecki, D., de Roo, T., Johnstone, C., Harland, J., Jonsson, L., Heinrich, D., Enghoff, I.B., Lõugas, L., Van Neer, W., Ervynck, A., Hufthammer, A.K., Amundsen, C., Jones, A.K.G., Locker, A., Hamilton-Dyer, S., Pope, P., MacKenzie, B.R., Richards, M., O'Connell, T.C. and Barrett, J.H., 2011. Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery. PLoS One, 6 (11), -.

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DOI: 10.1371/journal.pone.0027568


Although recent historical ecology studies have extended quantitative knowledge of eastern Baltic cod (Gadus morhua) exploitation back as far as the 16th century, the historical origin of the modern fishery remains obscure. Widespread archaeological evidence for cod consumption around the eastern Baltic littoral emerges around the 13th century, three centuries before systematic documentation, but it is not clear whether this represents (1) development of a substantial eastern Baltic cod fishery, or (2) large-scale importation of preserved cod from elsewhere. To distinguish between these hypotheses we use stable carbon and nitrogen isotope analysis to determine likely catch regions of 74 cod vertebrae and cleithra from 19 Baltic archaeological sites dated from the 8th to the 16th centuries. δ(13)C and δ(15)N signatures for six possible catch regions were established using a larger sample of archaeological cod cranial bones (n = 249). The data strongly support the second hypothesis, revealing widespread importation of cod during the 13th to 14th centuries, most of it probably from Arctic Norway. By the 15th century, however, eastern Baltic cod dominate within our sample, indicating the development of a substantial late medieval fishery. Potential human impact on cod stocks in the eastern Baltic must thus be taken into account for at least the last 600 years.

Item Type:Article
Additional Information:Funding: The research was funded by the Leverhulme Trust (grant no. F/00 224/S), the History of Marine Animal Populations project (supported by the Alfred P. Sloan Foundation) and the McDonald Institute for Archaeological Research. The History of Marine Animal Populations project will contribute the PLoS publication charges. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Uncontrolled Keywords:Animals ; Archaeology ; Bone and Bones ; Carbon Isotopes ; Europe ; Fisheries ; Gadus morhua ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, Medieval ; Nitrogen Isotopes ; Oceans and Seas
Group:Faculty of Science & Technology
ID Code:35641
Deposited By: Symplectic RT2
Deposited On:14 Jun 2021 15:31
Last Modified:14 Mar 2022 14:28


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