Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Others; freshwater; depth range 0 - 4 m (Ref. 63946). Polar
Arctic, Eastern Pacific and Northern Atlantic: Southern Alaska to California. Subtropical to Polar.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cmmax. published weight: 910.00 g (Ref. 356)
Culmen: 3.185 cm; tarsus: 4.05 cm; wing: 22.75 cm.
Depth range based on occurrence (Ref. 63946). To be replaced with a better reference. Coastal. Exhibits surface diving and dabbling behavior (Ref. 356). Inhabits the littoral zone. Winters in estuaries. Breeds inland in boreal forests. Undergoes molting migration. Molting birds are found in coastal saltwaters, estuaries, rich shallow freshwater lakes (in the Yukon), in brackish waters of fjords and rich shallow coastal lakes surrounded by open water (in Denmark), rocky foreshores (in Ungava Bay). Population threats include oil spills and toxic chemical contamination, logging, fish introductions in breeding lakes, and hunting (Ref. 95145).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
SAUP Database. 2006. (Ref. 356)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 3.5 - 12.2, mean 8.3 (based on 879 cells).
Price category
Unknown.
