Lake Chub
Couesius plumbeus
Status
Occurs in Labrador.
Food
The major part of their diet is made up of aquatic
insects.
Range
Found in all Provinces of Canada. In NF it is
found in Labrador.
Appearance
The lake chub is a minnow that can grow up to
about 9" in length. 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. The lake chub usually undergoes a spawning migration from lake to
tributary stream in the early spring. When water temperatures are roughly 140C
spawning begins to take place. They will spawn amongst rocky substrate. Eggs are
neither placed in a nest or guarded. It is estimated that a female 2.8 inches
long can hold 500 eggs.
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