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昨天在网上一条关于“假鳕鱼”的微博引起了广泛的关注。一位网友在网上发微博称，她的女儿吃了在超市买的假鳕鱼，实际是油鱼，最后导致腹泻。随后演员马伊琍也发了一条微博附和称，她的孩子也吃了在超市买的鳕鱼，最后导致腹泻。虽然家乐福坚称其商品系统中仅允许销售鳕鱼，但关于部分超市和餐厅为逐利而以油鱼冒充鳕鱼的内容，还是成为当天网上的热点话题。
Shanghai-based Carrefour (China) Group denies the accusation posted by a micro-blogger that its stores sell oilfish as cod, saying the cod for sale are silver pout and buffalo cod, species of cod family, and have proper certificates from import authorities。
Carrefour made the statement on its official micro blog at sina.com.cn after a post by netizen Triple Yan saying that toxic oilfish, banned in food markets in Europe, was sold in Carrefour labeled as cod was widely circulated。
The two fish species for sale in Carrefour have been licensed by the Entry-Exit Inspection and Quarantine Bureau - China's top entry-exit regulator, noted the company, urging "the whistleblower" to contact them and vowing to investigate into its supply chains in an effort to protect consumers' rights。
"Oilfish could also be regarded as a subspecies of cod, although edible, it is fat-rich and could cause physical discomforts like diarrhea for certain people," said Gu Zhenhua, deputy director of the Shanghai municipal food security regulator. He added that China has yet to have regulatory rules or ban on cod sale。
央视调查：国内市售鳕鱼可能均非真正鳕鱼
记者通过走访发现，目前市面上的鳕鱼有三种：银鳕鱼(sablefish)、龙鳕鱼、水鳕鱼。但据专家称，此三种都不是真正的鳕鱼，鳕鱼在内地没有，一般在海边，数量非常少，此三种鱼是油鱼，脂肪量高达18%-21%，脂肪容易堆积在肠道产生腹泻。
银鳕鱼实为裸盖鱼，由于轮廓像真正的鳕鱼(大西洋鳕、太平洋鳕等)，被称为银鳕鱼或“鳕鱼”。这种鱼类我国不产，价格较贵;太平洋鳕我国有产价格低廉，大西洋鳕我国不产但总产量高所以价格也较低廉，另有狭鳕等鳕科鱼类也称鳕鱼，价格比大西洋鳕低廉，这些都是安全的。但油鱼是蛇鲭类，称“鳕鱼”有滥竽充数之嫌。中国的商家是利用汉字表达的不精确和法律监管的问题在“鳕”字上大做文章。
挂鳕鱼标签买油鱼曾在香港引发风波
虽然目前内地没有出台政策对鳕鱼入市采取具体限制和监管，但早在2007年由于市民投诉类似事件，香港政府食物安全中心《有关识别及标签油鱼/鳕鱼的指引》规定。建议所有入口商区分清楚油鱼和鳕鱼，并建议零售商对油鱼会引起腹泻和肠胃不适等风险做出明确的警告说明。
油鱼(oilfish)学名为棘鳞蛇鲭(scentific name: Ruvettus Pretiosus)，脂肪含量丰富，其中超过90%为蜡脂。
鳕鱼属于鳕形目鱼类，目前有60多种已知品种，常见的种类有：
太平洋鳕鱼 Pacific cod 大西洋鳕鱼 Atlantic cod 狭鳕 Alaska pollack
在《有关识别及标签油鱼/鳕鱼的指引》中明确指出，只有鳕形目鱼类在销售时才可采用包含“鳕”字(Only fish belonging to the order Gadiformes should use common name containing the word “cod”/“鳕”)。
