Jh. Barrett et al., Diet and ethnicity during the Viking colonization of northern Scotland: Evidence from fish bones and stable carbon isotopes, ANTIQUITY, 75(287), 2001, pp. 145-154
Diet and ethnicity are strongly related. Recent work on fish-bone ratios an
d stable carbon isotopes suggest that the Vikings increased the fish contri
bution to the diet of Orkney and Shetland by a greater investment in deep-s
ea fishing.