• Atlantic Cod (Gadus morhua) used to be one of the most eaten fish in temperate regions of the western hemisphere. It was ubiquitous from the Baltic Sea, via North Sea throughout the whole north Atlantic. Adults live mainly in deeper, colder water, while juveniles are more likely to be close to shore, in 10-30 m depths. Cods migrate between breeding, feeding and overwintering grounds, but the migration paths are usually not very long ones – usually less than 200 km. Thus, local factors can highly influence a population. Cod feeds on invertebrates and small fish like herring. In their

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