Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού; εύρος βάθους 0 - 4 m (Αναφ. 63946). Polar
Arctic, Eastern Pacific and Northern Atlantic: Southern Alaska to California. Subtropical to Polar.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cmμεγ. δημοσιευμένο βάρος: 910.00 g (Αναφ. 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
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae
SAUP Database 2006 SAUP Database. www.seaaroundus.org. (Αναφ. 356)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Population dynamicsΑύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycleΑναπαραγωγή
Γεννητική Ωρίμανση
Γονιμότητα
Γεννοβολία
Eggs
Egg development
Larvae
PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 3.5 - 12.2, mean 8.3 (based on 879 cells).
Price category
Unknown.
