Captain Haddock home, Marlinspike Hall (or "Moulinsart" in the original French). Harry Thompson, author of "Tintin: Hergé and his creation", writes that the introduction of this large and luxurious country house was "to provide a suitable ancestral home for Tintin and himself to move into." To achieve this in terms of the plot, Hergé also details Haddock's ancestry, something Thompson regards as distinctive: "Haddock is the only regular character whose relatives turn up in the Tintin stories at all (if one discounts Jolyon Wagg and his dreadful family)." As Haddock's role grew, Hergé expanded his character, basing him upon aspects of friends,
Haddock beneath the cod's gill cover until it releases a new generation of offspring into the water. Reaching sizes up to , haddock is fished year-round. Some of the methods used are Danish seine nets, trawlers, long lines and fishing nets. The commercial catch of haddock in North America had declined sharply in recent years, but is now recovering, with recruitment rates running around where they historically were from the 1930s to 1960s. In the eastern Atlantic haddock is mainly exploited by mixed fisheries, being targeted with cod and whiting, especially by light trawlers from Scottish ports as well as seiners