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Greenland cockle

SIZE : 

Up to 11 cm.

LIFE EXPECTANCY : 

Up to 48 years.

LIFE CYCLE : 

Sexual maturity approximately 2 to 3 years for males, and 3 to 4 years for females.

Greenland cockles are hermaphrodites; in other words, they have both male and female parts. Sperm and eggs are expelled, and fertilization takes place in the water column. The embryos develop into free-swimming larvae, before metamorphosing into the juvenile form and settling on the bottom.

Coastal zone, up to 100 m deep.

The Greenland cockle buries itself in soft bottoms of sand or mud.

Photographie d'une coque du Groenland  entrouverte, sur un sol en sable.
The Greenland cockle prefers soft bottoms.
Credit : Nadezhda Samoylova, photo taken at the white sea, in 2020.

PREY :

Plankton

PREDATORS :

Crabs
Cod and other bottom fish
Seals

MACHINES :

Hydraulic dredge.

REGULATIONS :

Offshore clam diggers (Stimpson’s surf clams and northern quahog) can harvest Greenland cockles as an unrestricted incidental catch.

There is no directed fishing for Greenland cockles.

Recreational harvesting, yes, but under certain conditions.

Greenland cockles can be hand-harvested recreationally. However, these shellfish can be toxic. Be sure to find out about harvesting conditions and whether your area is open. This information can be found on the Fisheries and Oceans Canada website.

BENEFITS

Bivalve molluscs are excellent sources of vitamin B12, Omega-3 fatty acids, choline, iron, selenium, and zinc. They are low in fat and carbohydrates.

LET’S COOK

Meat-like texture, tender. Delicate flesh with a sweet-salty flavor.

Cockles can be prepared in many different ways: in a white wine sauce, braised in a pan, in risottos or pasta, and can even be eaten raw, as in sashimi.

OUR CULINARY ADVICE :

  • Before preparation, soak Greenland cockles in fresh water for several hours to remove sand from the shells.
Document détaillant les mesures de précaution quant à la consommation des mollusques. Information sur la conservation, le maniement et la cuisson.
To avoid poisoning, it's important to always follow safe shellfish storage, handling and cooking practices.
Source : DFO
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