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

Orton, DC; Makowiecki, D; de Roo, T; Johnstone, C; Harland, J; Jonsson, L; Heinrich, D; ... Barrett, JH; + view all (2011) Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery. PLoS One , 6 (11) , Article e27568. 10.1371/journal.pone.0027568. Green open access

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Abstract

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.

Type: Article
Title: Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1371/journal.pone.0027568
Publisher version: http://dx.doi.org/10.1371/journal.pone.0027568
Language: English
Additional information: © 2011 Orton et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. PMCID: PMC3217992
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
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of SandHS > Institute of Archaeology
URI: http://discovery.ucl.ac.uk/id/eprint/1433350
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