Flesh Quality of Market-Size Farmed and Wild British Columbia Salmon
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- 作者：M. G. Ikonomou ; D. A. Higgs ; M. Gibbs ; J. Oakes ; B. Skura ; S. McKinley ; S. K. Balfry ; S. Jones ; R. Withler ; C. Dubetz
- 刊名：Environmental Science & Technology
- 出版年：2007
- 出版时间：January 15, 2007
- 年：2007
- 卷：41
- 期：2
- 页码：437 - 443
- 全文大小：150K
- 年卷期：v.41,no.2(January 15, 2007)
- ISSN：1520-5851
文摘
This study compared the flesh quality of farmed and wildsources of British Columbia (BC) salmon with respectto concentrations of polychlorinated biphenyl compounds,polychlorinated dibenzodioxins/dibenzofurans and theirassociated toxic equivalents, total mercury (THg),methylmercury (MeHg), and selected fatty acids of knownimportance for human health viz., omega-3 (n-3) highlyunsaturated fatty acids (n-3 HUFAs) and (n-6) fatty acids.Skinned fillets from known sources of farmed Atlantic, coho,and chinook salmon (n = 110) and wild coho, chinook,chum, sockeye, and pink salmon (n = 91) were examined.Atlantic salmon contained higher PCB concentrations(means, 28-38 ng/g) than farmed coho or chinook salmon,and levels in these latter species were similar to thosein wild counterparts (means, 2.8-13.7 ng/g). PCB levels inAtlantic salmon flesh were, nevertheless, 53-71-foldless than the level of concern for human consumption offish, i.e., 2000 ng/g as established by Health Canada and theU.S. Food and Drug Administration (US-FDA). Similarly,THg and MeHg levels in all samples were well below theHealth Canada guideline (0.5 
g/g) and the US-FDAaction level (1.0 g/g). On average, THg in farmed salmon(0.021 g/g) was similar to or lower than wild salmon (0.013-0.077 g/g). Atlantic salmon were a richer source (mean, 2.34g/100 g fillet) of n-3 HUFAs than the other farmed andwild sources of salmon examined (means, 0.39-1.17 g/100g). The present findings support the recommendedweekly consumption guidelines for oily fish species (includesall BC salmon sources) for cardio-protective benefits asmade by the American Heart Association and the UK FoodStandards Agency.
g/g) and the US-FDAaction level (1.0 g/g). On average, THg in farmed salmon(0.021 g/g) was similar to or lower than wild salmon (0.013-0.077 g/g). Atlantic salmon were a richer source (mean, 2.34g/100 g fillet) of n-3 HUFAs than the other farmed andwild sources of salmon examined (means, 0.39-1.17 g/100g). The present findings support the recommendedweekly consumption guidelines for oily fish species (includesall BC salmon sources) for cardio-protective benefits asmade by the American Heart Association and the UK FoodStandards Agency.