青鳕为辐鳍鱼纲鳕形目鳕科的其中一种，分布于东北大西洋区，从挪威至比斯开湾海域，栖息深度可达200公尺，本鱼背鳍3个，臀鳍2个，下颌明显突出超过上颔一些，侧线连续，在胸鳍基底的没有深色斑点。体色是可变，背部黑色，强烈地与银灰色侧边与腹面区分; 身体有的上半部黄色到橘色的条纹或斑块;侧线呈绿色的，鳍全黑色除了腹鳍是淡黄色，背鳍软条24-28枚，臀鳍软条33-39枚，体长可达130公分，栖息在大陆棚，为底栖性鱼类，属肉食性，以甲壳类、头足类及小鱼等为食，为高经济价值的食用鱼。

The Atlantic or European pollock (Pollachius pollachius) is a species of marine fish in the Pollachius genus. FAO uses English name pollack for this species. Together with Pollachius virens, it may also be referred to as pollock. Other names include European pollock, lieu jaune, and lythe. It is common in the north-eastern parts of the Northern Atlantic, including the Bay of Biscay and North Sea. Adults can grow up to 130 centimetres (51 in) and weigh up to 18.1 kilograms (40 lb), although more commonly their maximum length is 75 centimetres (30 in).