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FISH GUIDE · Sea

Atlantic cod: identification, habitat and fishing guide

Gadus morhua

Atlantic cod is approached here near the bottom with a simple bait rig that can be kept under control. This guide concerns France’s northern coasts; it does not promise its presence in every harbour. Before a trip, establish the local context and how you will land a fish.

Catalogue names : Morue, Morue commune. Forms and names may vary between habitats.

Editorial review : · This species guide is not permission to fish. Read the precautions below and check the current rules for your location before targeting a species. Some species or populations are protected.

Geographical distribution

Found on both sides of the North Atlantic. DORIS documents, among other areas, the French English Channel and North Sea coasts and the northwestern Atlantic side.

  • Documented presence : Northeast Atlantic
  • Documented presence : Northwest Atlantic

Documented areas, not an exhaustive list. Presence in a region does not imply presence in every water body or permission to fish.

Distribution sources

Identification

Gadus morhua has a chin barbel, several dorsal fins and a pale lateral line. Its marbled colouring varies, contrary to the idea of a single colour for identifying cod. Pollack and saithe lack this long barbel. Look at the whole body: other gadids also have a barbel and require comparison.

Habitat

Cod belong to North Atlantic waters; in France this approach mainly targets the English Channel and North Sea, without a guaranteed calendar of presence. Rocky or mixed bottoms and areas around changes in relief are types of sectors to examine. This guide does not project historical British abundance onto the present day.

Diet

Adults eat prey including small fish, shrimp and squid.

Behaviour

Its diet includes fish and marine invertebrates. The bottom provides a starting point for exploration, but the fish can also move away from it to feed. A bitten bait is not enough to identify the species responsible; retain that observation as a clue, then confirm it with a catch.

Fishing context and precautions

  1. Find a bottom where the rig can be retrieved and choose a landing-net point before setting up the line.
  2. Prepare a terminal weight and a snood carrying a single hook, to present the bait near the bottom.
  3. Cast or lower the rig, then take up slack without continually moving the weight. Regularly check that the bait remains secure.
  4. At a clear pull, establish contact and retrieve with steady tension. If the rig snags, change position or angle before casting again.

A distinctive feature

Its colouring can change to match its surroundings.

Sources and review

Each reference includes its access date. Overall editorial review: . Local conditions and regulations may change.

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