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Are concentrations of pollutants in sharks, rays and skates (Elasmobranchii) a cause for concern? A systematic review
Marine Pollution Bulletin ( IF 5.8 ) Pub Date : 2020-09-25 , DOI: 10.1016/j.marpolbul.2020.111701
Guuske P Tiktak 1 , Demi Butcher 2 , Peter J Lawrence 3 , John Norrey 1 , Lee Bradley 1 , Kirsty Shaw 1 , Richard Preziosi 1 , David Megson 1
Affiliation  

This review represents a comprehensive analysis on pollutants in elasmobranchs including meta-analysis on the most studied pollutants: mercury, cadmium, PCBs and DDTs, in muscle and liver tissue. Elasmobranchs are particularly vulnerable to pollutant exposure which may pose a risk to the organism as well as humans that consume elasmobranch products. The highest concentrations of pollutants were found in sharks occupying top trophic levels (Carcharhiniformes and Lamniformes). A human health risk assessment identified that children and adults consuming shark once a week are exposed to over three times more mercury than is recommended by the US EPA. This poses a risk to local fishing communities and international consumers of shark-based products, as well as those subject to the widespread mislabelling of elasmobranch products. Wider screening studies are recommended to determine the risk to elasmobranchs from emerging pollutants and more robust studies are recommended to assess the risks to human health.



中文翻译:

鲨鱼、鳐鱼和鳐鱼(Elasmobranchii)中的污染物浓度是否值得关注?系统评价

这篇综述代表了对弹性枝中污染物的综合分析,包括对肌肉和肝脏组织中研究最多的污染物:汞、镉、多氯联苯和滴滴涕的荟萃分析。Elasmobranchs 特别容易受到污染物的影响,这可能对有机体以及食用 elasmobranch 产品的人类构成风险。在占据最高营养级的鲨鱼(Carcharhiniformes 和 Lamniformes)中发现了最高浓度的污染物。一项人类健康风险评估发现,每周食用一次鲨鱼的儿童和成人所接触的汞含量是美国环保署建议的三倍以上。这对当地渔业社区和鲨鱼制品的国际消费者以及那些受到广泛贴错标签的弹性鳃产品的消费者构成了风险。

更新日期:2020-09-25
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