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Balancing the risks and the benefits of local fish consumption in Bermuda


, : Balancing the risks and the benefits of local fish consumption in Bermuda. Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment 25(11): 1328-1338

Fish consumption today is widely recognized as highly beneficial since it constitutes a good source of several essential nutrients, such as selenium and polyunsaturated fatty acids (n-3 PUFA). However, fish can also contain contaminants such as mercury, which make the consumer, especially pregnant women, confused about the risk-benefit balance associated with fish consumption. This is particularly true for tropical fish species for which little information is available. We have previously reported that some Bermudian neonates had elevated mercury in their umbilical blood compared with international guidelines. The aim of this study was to give a precise and balanced information on the content of mercury, selenium and PUFA in the most consumed fish species in Bermuda. In 2003 and 2006, a total of 307 fishes were collected (comprising 43 fish species) and 351 samples were analysed (305 flesh samples, 44 liver samples, one roe and one fat sample) by inductively coupled plasma-mass spectrometry (ICP-MS) (metals) and high-resolution gas chromatography (HRGC) (fatty acids). Mercury levels varied among species from 0.03 to 3.3 micro g g-1, and that it is possible for at-risk groups such as pregnant women to make informed choices concerning fish consumption, e.g. maximizing fish species rich in nutrients and low in mercury.

US$19.90

PMID: 19680840

DOI: 10.1080/02652030802175285


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