欧洲水域中欧洲比目鱼（欧洲鳎，Platichthys flesus）早期受到多氯二苯并对二噁英/多氯二苯并呋喃（PCDD/Fs）和类二噁英多氯联苯（dioxin-like PCBs）的污染。
Early contamination of European flounder (Platichthys flesus) by PCDD/Fs and dioxin-like PCBs in European waters.
作者信息
Nunes Margarida, Martinho Filipe, Vernisseau Anaïs, Marchand Philippe, Le Bizec Bruno, van der Veer Henk W, Cabral Henrique N, Ramos Fernando, Pardal Miguel A
机构信息
CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal; CEF - Center for Pharmaceutical Studies, Health Sciences Campus, Bromatology Laboratory, Pharmacy Faculty, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal.
出版信息
Mar Pollut Bull. 2014 Aug 15;85(1):292-6. doi: 10.1016/j.marpolbul.2014.05.042. Epub 2014 Jun 6.
Contamination levels and profiles of 7 polychlorinated-p-dioxins, 10 polychlorinated furans (PCDD/Fs) and 12 dioxin-like polychlorinated biphenyls (dl-PCBs) were investigated in juvenile European flounder (Platichthys flesus) captured in different nursery areas in the northeastern Atlantic coast across its geographical distribution range. The toxic equivalent concentrations (WHO-TEQfish) were also determined in order to evaluate which P. flesus population was more exposed to dioxin-like toxicity. Juveniles caught in the Sørfjord (Norway) showed the lowest WHO-TEQfish concentration (0.052 pg WHO-TEQfish g(-1)wet weight) whereas the highest value was observed in fish from the Wadden Sea (The Netherlands; 0.291 pg WHO-TEQfish g(-1)ww), mainly due to the greater contribution of 2,3,7,8-tetrachlorodibenzo-p-dioxin, the most toxic congener. Nonetheless, when comparing the results with existent tissue residue-based toxicity benchmarks, no adverse effects resulting from PCDD/Fs and dl-PCBs are expected to occur in flounder from the studied systems.
对在东北大西洋沿岸不同育苗区捕获的欧洲幼鲆（Platichthys flesus）进行了研究，分析了7种多氯代对二恶英、10种多氯代呋喃（PCDD/Fs）和12种二恶英类多氯联苯（dl-PCBs）的污染水平和分布情况，其分布范围覆盖了该物种的地理分布区域。还测定了毒性当量浓度（WHO-TEQfish），以评估哪个欧洲幼鲆种群受二恶英类毒性的影响更大。在挪威的叙尔峡湾捕获的幼鱼显示出最低的WHO-TEQfish浓度（0.052 pg WHO-TEQfish g(-1)湿重），而在荷兰瓦登海捕获的鱼中观察到最高值（0.291 pg WHO-TEQfish g(-1)湿重），这主要是由于毒性最强的同系物2,3,7,8-四氯二苯并对二恶英的贡献更大。尽管如此，将结果与现有的基于组织残留的毒性基准进行比较时，预计研究系统中的欧洲幼鲆不会因PCDD/Fs和dl-PCBs而产生不利影响。
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