Video taken on board an Icelandic trawler in September 2015. Big cod is a fish eater, in summer they feed on herring and mackerel. These species leave Icelandic grounds in the fall but the cod is still hungry and need more fish to eat. Then they often turn to smaller ones of their own species. Saving big cod in order to increase the spawning to get more recruits stock may have the reverse effect. Natures reaction to wrong management?