Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Others; freshwater; depth range 0 - 4 m (Ref. 115862), usually 0 - 3 m (Ref. 115862). Subtropical
Arctic, Eastern Pacific and Western Atlantic: Winters from Aleutian Islands to Gulf of St Lawrence, to Californian Gulf, Mexican Gulf, Georgia south to Florida.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 49.0 cm TL male/unsexed; (Ref. 94965); max. published weight: 900.00 g (Ref. 356)
Culmen: 3.135 cm; tarsus: 8.105 cm; wing: 21.15 cm.
Depth range and common depth based on occurrence (Ref. 115862). To be replaced with a better reference. Coastal (Ref. 356). Breeds in freshwater and along coasts (in Sweden and in the Gulf of Bothnia); nests in hollow trees or artificial nest-boxes. Martens (Martes martes) and jays (Garrulus glandarius) known to feed on its eggs. Ducklings preferentially feed in lakes. Main diet include Corixidae, Notonecta, Ephemerida larvae (mainly Leptophlebia vespertina), Dytiscidae adults (mainly Hyphydrus ovatus) and larvae (mainly Acilius and Dytiscus), and Chaoborus larvae (Ref. 95144). Displays dabbling behavior (Ref. 356). Common diving depth of 2 to 3 m (Ref. 115862).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
SAUP Database. 2006. (Ref. 356)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood itemsDiet compositionFood consumptionFood rationsPredators Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionRecruitmentAbundance Life cycleReproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics
Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 3.6 - 23.6, mean 8.8 (based on 929 cells).
Vulnerability
Moderate vulnerability (39 of 100).
Price category
Unknown.