Species · GBIF taxon 2415893
Atlantic Tomcod
Microgadus tomcodAlso known as Frostfish, Winter Cod
Atlantic tomcod are small, bottom-dwelling members of the cod family that thrive in icy coastal waters, estuaries, and rivers. They produce specialized antifreeze proteins in their blood, allowing them to remain active and spawn under solid ice during the dead of winter. These resilient fish serve as a vital ecological link, converting small invertebrates into food for larger marine predators.
Cold-waterBottom-dwellerEstuarine
Licensed referenceH.L. Todd 1884 / Public Domain · Public Domain
- diet
- Small crustaceans, amphipods, marine worms, and small fish
- family
- Gadidae
- threats
- Water pollution, habitat degradation, and warming winter water temperatures
- life Span
- 3 to 4 years
LC
Safe to observe at a normal distance.
- Winter Angling: Look for them in tidal rivers and estuaries during the coldest months when they migrate upstream to spawn.
- Identification: Distinguish them from young Atlantic cod by their elongated second pelvic fin ray, which acts as a feeler.
- Catch and Release: Handle gently with wet hands to protect their delicate slime coat if caught.