Fisheries and Land Resources

Lake Chub

Couesius plumbeus


Occur in Labrador.


Found in all provinces of Canada, but in this province, only in Labrador.


Diet mainly consists of aquatic insects.


This minnow that can grow up to about nine inches long; brown to green above, with a dark stripe along silver-gray sides; slender body with pointed snout.

Breeding Biology

Very few studies have been published on this species. Lake Chub usually undergo a spawning migration from lake to tributary stream in the early spring. Spawning begins to occur when water temperatures are roughly 14oC. Chub will spawn amongst rocky substrate, and eggs are not guarder nor placed in a nest. A 2.8-inch female can hold an estimated 500 eggs


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