Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; آب شيرين; تغييرات عمق 0 - 4 m (مرجع 63946). Polar
Arctic, Eastern Pacific and Northern Atlantic: Southern Alaska to California. Subtropical to Polar.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cmبيشينه وزن گزارش شده: 910.00 g (مرجع 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
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
SAUP Database 2006 SAUP Database. www.seaaroundus.org. (مرجع 356)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Population dynamicsرشد
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
فراواني
Life cycleتولید مثل
بلوغ
Fecundity
تخم ریزی
Eggs
نمو تخم
Larvae
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): 3.5 - 12.2, mean 8.3 (based on 879 cells).
طبقه قيمت
Unknown.