TABLE 12. Concentrations of radionuclides in marine fish caught outside of the United States. Radionuclide concentration (pCi/kg wet wt) Marine food Plaice, cod, flounder, herring, and mackerel : Location Year 90, 1370, 2394240), Reference aad number Whitehaven, Fleetwood, and Morecambe Bay, United Kingdom 1977 -- 9100 1.1 0.9 38 Plaice and cod Irish Republic 1977 -- 2600 -- -- 38 Plaice, cod, herring, Northern and sand eel North Sea 1977 -- 120 -- -- 38 Flounder and flatfish Tokai, Japan 1971-75 0.9 0.099 -- 39 Japar 1978-79 -~- 19 - -- 40 Japan 1978-79 =~ 18 -- -- 40 7.5 Sebastes malsuburai, Scombrops boops, Hyperoglyphe japonica, Paracaesio caeruleus, and Beryx splendens Paralichthys olivaceus, Lotella maximoniczi, Lateolabrax japonicus, Katsuwonus pelamis, and Argyrosomus argentatus 29