Short answers, pulled from the story.
Carolus Linnaeus first described the haddock as Gadus aeglefinus in 1758 within his Systema naturae. Theodore Nicholas Gill later established the genus Melanogrammus in 1862 to house this single species.
The name Melanogrammus derives from Greek words meaning black line, referencing the fish's distinct lateral marking. This specific naming convention highlights the visual identity that separates it from other cod family members.
Populations exist on both sides of the North Atlantic Ocean yet abundance varies significantly by region. Eastern stocks stretch from the Bay of Biscay north to Spitzbergen and around Novaya Zemlya while Western populations range from western Greenland down to Cape Hatteras.
Females reach sexual maturity at five years old while males mature at four years except in the North Sea where rates differ. A single female haddock measuring one meter can produce 1,841,000 eggs compared to just 55,000 for smaller specimens.
Finnan haddie originates from the fishing village of Findon in Scotland where fish were cold-smoked over smouldering peat. Smoked haddock serves as the essential ingredient in Cullen skink chowder and the Anglo-Indian dish kedgeree.