Species: Couesius plumbeus
Lake Chub
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Actinopterygii
Order
Cypriniformes
Family
Cyprinidae
Genus
Couesius
NatureServe
Classification
Other Global Common Names
méné de lac
Informal Taxonomy
Animals, Vertebrates - Fishes - Bony Fishes - Minnows and Carps
Formal Taxonomy
Animalia - Craniata - Actinopterygii - Cypriniformes - Cyprinidae - Couesius - .
Ecology and Life History
Habitat Type Description
Freshwater
Migration
true - true - false - May migrate up to 1.6 km between separate spawning and nonspawning habitats (Scott and Crossman 1973).
Non-migrant
true
Locally Migrant
true
Food Comments
Eats insect larvae, zooplankton, and algae; sometimes fishes (Scott and Crossman 1973).
Reproduction Comments
Spawns in spring and summer. Eggs hatch in about 10 days. Sexually mature in 3rd or 4th year (Becker 1983).
Ecology Comments
Sometimes occurs in large schools (Becker 1983).
Length
23
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-09-13
Global Status Last Changed
1996-09-13
Other Status
PS
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=S5&CA.BC=S5&CA.LB=S3&CA.MB=S5&CA.NB=S5&CA.NT=S5&CA.NS=S5&CA.NU=SNR&CA.ON=S5&CA.QC=S5&CA.SK=S5&CA.YT=S5&US.AK=S4&US.CO=S1&US.ID=SNR&US.IL=SU&US.IN=S1&US.IA=SX&US.ME=S4&US.MA=S1&US.MI=S4&US.MN=SNR&US.MT=S5&US.NE=S1&US.NH=S4&US.NY=S3&US.ND=S3&US.SD=S1&US.VT=S4&US.WA=S2&US.WI=S4&US.WY=S5" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
H - >2,500,000 square km (greater than 1,000,000 square miles) - H - The most northern minnow in North America; the only minnow in Alaska (Page and Burr 2011). Range includes much of Canada and the extreme northern United States, south to Delaware River of New York, Lake Michigan (Illinois), and Platte River system in Wyoming, with relict populations in the upper Missouri River drainage, South Dakota, Nebraska, Colorado, and Wyoming, and Twin Springs Creek (Mississippi River tributary), Iowa (Stasiak 1986, Bestgen et al. 1991, Page and Burr 2011).
Global Range Code
H
Global Range Description
>2,500,000 square km (greater than 1,000,000 square miles)

