Species · GBIF taxon 2415822
Haddock
Melanogrammus aeglefinusAlso known as Haddie
Haddock cruise the cold, salty depths of the North Atlantic in large, fast-moving schools, feeding primarily on small invertebrates along the seabed. They are easily recognized by a prominent, dark lateral line and a distinctive black smudge above each pectoral fin, colloquially known as the devil's thumbprint. These groundfish play a vital role in the marine food web, linking benthic production to larger predators like cod, seals, and sharks.
MarineDeep-WaterSchooling

Licensed referenceJ. Deeds FDA / Public Domain (FDA) · Public Domain (FDA)
- diet
- Benthic invertebrates including brittle stars, sea urchins, marine worms, and small mollusks, as well as small fish.
- family
- Gadidae
- threats
- Overfishing, habitat degradation from bottom trawling, and climate-driven ocean warming.
- life Span
- Up to 14 to 20 years
VU
Safe to observe at a normal distance.
Vulnerable to population declines due to historical overfishing and habitat disruption from heavy commercial trawling.
Support sustainable seafood initiatives and advocate for marine protected areas that restrict destructive bottom trawling.- Identify by markings: Look for the dark lateral line and the distinctive black thumbprint mark above the pectoral fin.
- Observe responsibly: Support sustainable fisheries by checking catch methods and regional population health before purchasing.
