{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,19]],"date-time":"2026-04-19T08:47:52Z","timestamp":1776588472562,"version":"3.51.2"},"reference-count":32,"publisher":"Oxford University Press (OUP)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Carvalho, F. P., Oliveira, J. M., and Malta, M. 2011. Radionuclides in deep-sea fish and other organisms from the North Atlantic Ocean \u2013 ICES Journal of Marine Science, 68: 333\u2013340. The naturally occurring radionuclides potassium-40 (40K), radium-226 (226Ra), polonium-210 (210Po), and lead-210 (210Pb) were measured in commercial fish species such as cod, halibut, redfish, and shark from several fishing grounds in the North Atlantic, as well as the anthropogenic radionuclides caesium-137 (137Cs) and plutonium isotopes (238Pu and 239+240Pu). The concentrations of naturally occurring radionuclides were compared with those of anthropogenic origin. The main contributors to the radiation dose were 210Po and 40K, with anthropogenic radionuclides accounting for just a small contribution. We provide the first measurements of naturally occurring radionuclides in abyssal organisms, including fish, molluscs, and crustaceans, from the Porcupine Abyssal Plain. In these organisms, radionuclide concentrations and the absorbed radiation doses were dominated by 210Po and were comparable with those determined in related coastal species, confirming that the deep-sea fauna do not live in an environment protected from ionizing radiation. Absorbed radiation doses from naturally occurring radionuclides still exceed radiation doses caused by anthropogenic radionuclides introduced into the Northeast Atlantic.<\/jats:p>","DOI":"10.1093\/icesjms\/fsq088","type":"journal-article","created":{"date-parts":[[2010,7,30]],"date-time":"2010-07-30T20:34:40Z","timestamp":1280522080000},"page":"333-340","source":"Crossref","is-referenced-by-count":56,"title":["Radionuclides in deep-sea fish and other organisms from the North Atlantic Ocean"],"prefix":"10.1093","volume":"68","author":[{"given":"Fernando P.","family":"Carvalho","sequence":"first","affiliation":[{"name":"Departamento de Protec\u00e7\u00e3o Radiol\u00f3gica e Seguran\u00e7a Nuclear, Instituto Tecnol\u00f3gico e Nuclear, E.N. 10, 2686-953 Sacav\u00e9m, Portugal"}]},{"given":"Jo\u00e3o M.","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Departamento de Protec\u00e7\u00e3o Radiol\u00f3gica e Seguran\u00e7a Nuclear, Instituto Tecnol\u00f3gico e Nuclear, E.N. 10, 2686-953 Sacav\u00e9m, Portugal"}]},{"given":"Margarida","family":"Malta","sequence":"additional","affiliation":[{"name":"Departamento de Protec\u00e7\u00e3o Radiol\u00f3gica e Seguran\u00e7a Nuclear, Instituto Tecnol\u00f3gico e Nuclear, E.N. 10, 2686-953 Sacav\u00e9m, Portugal"}]}],"member":"286","published-online":{"date-parts":[[2010,7,30]]},"reference":[{"key":"2019081300352866300_FSQ088C1","doi-asserted-by":"publisher","first-page":"69","DOI":"10.1016\/0265-931X(96)00005-7","article-title":"A comparison of doses from 137Cs and 210Po in marine food: a major international study","volume":"34","author":"Aarkrog","year":"1997","journal-title":"Journal of Environmental Radioactivity"},{"key":"2019081300352866300_FSQ088C2","first-page":"125","article-title":"Marine radioactivity studies in the vicinity of sites with potential radionuclide releases","volume-title":"Proceedings of an International Symposium on Environmental Impact of Radioactive Releases","author":"Baxter","year":"1995"},{"key":"2019081300352866300_FSQ088C3","doi-asserted-by":"publisher","first-page":"469","DOI":"10.1097\/00004032-199510000-00004","article-title":"210Po and 210Pb intake by the Portuguese population: the contribution of seafood in the dietary intake of 210Po and 210Pb","volume":"69","author":"Carvalho","year":"1995","journal-title":"Health Physics"},{"key":"2019081300352866300_FSQ088C4","doi-asserted-by":"publisher","first-page":"125","DOI":"10.3354\/meps102125","article-title":"An experimental study on the bioaccumulation and turnover of polonium-210 and lead-210 in marine shrimp","volume":"102","author":"Carvalho","year":"1993","journal-title":"Marine Ecology Progress Series"},{"key":"2019081300352866300_FSQ088C5","doi-asserted-by":"publisher","first-page":"251","DOI":"10.3354\/meps103251","article-title":"A double tracer technique to determine the relative importance of water and food as sources of polonium-210 to marine prawns and fish","volume":"103","author":"Carvalho","year":"1994","journal-title":"Marine Ecology Progress Series"},{"key":"2019081300352866300_FSQ088C6","doi-asserted-by":"publisher","first-page":"167","DOI":"10.1007\/s10967-006-6914-3","article-title":"Alpha emitters from uranium mining in the environment","volume":"274","author":"Carvalho","year":"2007","journal-title":"Journal of Radioanalytical and Nuclear Chemistry"},{"key":"2019081300352866300_FSQ088C7","first-page":"387","article-title":"Radioactivity in marine organisms from Northeast Atlantic Ocean","volume-title":"The Natural Radiation Environment (NRE VIII)","author":"Carvalho","year":"2008"},{"key":"2019081300352866300_FSQ088C8","doi-asserted-by":"publisher","first-page":"591","DOI":"10.1007\/s10967-009-0046-2","article-title":"Performance of alpha spectrometry in the analysis of uranium isotopes in environmental and nuclear materials","volume":"281","author":"Carvalho","year":"2009","journal-title":"Journal of Radioanalytical and Nuclear Chemistry"},{"key":"2019081300352866300_FSQ088C9","first-page":"571","article-title":"The Radiological Exposure of the Population of the European Community from Radioactivity in North European Marine Waters: Project MARINA. 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