HMS Duncan (F80) HMS Duncan (F80) HMS "Duncan" was the fifth RN ship named after Admiral Adam Duncan. She was a of the Royal Navy that served in the Cod Wars. From her first commissioning in 1958 until 1965 "Duncan" was the leader of the Fishery Protection Squadron. She was involved in the First Cod War between United Kingdom and Iceland over fishing rights, intervening between the Icelandic coastguard and British trawlers. She was an escort to the royal yacht in August 1960. In 1964 "Duncan" fired the salute at the opening of the new Forth Road Bridge. The frigate also visited Nantes
Murray cod cod have also been known to eat ducks, cormorants, freshwater turtles, water dragons, snakes, mice, and frogs. The observations of the recreational fishermen fishing for Murray cod with surface lures at night reveal that the popular description of Murray cod as a demersal ambush predator is only partially correct. While this behaviour is typical during the day, at night, Murray cod are active pelagic predators, venturing into shallow waters and frequently taking prey from the surface. Murray cod reach sexual maturity between four and six years of age, generally five years. Sexual maturity in Murray cod is dependent on age.