Aves |
Anseriformes |
Anatidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού; Υφάλμυρο; εύρος βάθους 0 - 60 m (Αναφ. 124889). Boreal; 71°N - 36°N, 10°W - 84°E (Αναφ. 124582)
Inland Asia, the Mediterranean, Pacific and Atlantic Ocean and Arctic. Subtropical to boreal.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 59.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 94965); μεγ. δημοσιευμένο βάρος: 1.8 kg (Αναφ. 356)
Culmen: 4.285 cm; tarsus: 4.73 cm; wing: 27.15 cm.
Surface diving; dabbling; coastal. Winters: Norway to Spain, Black, Caspian and Mediterranean Seas; coastal East Asia, south to Japan and China; Atlantic and Pacific coastlines to Baja California, south Carolina, Florida, and Gulf coast (Ref. 356). They breed on wooded coastlines, small freshwater lakes, pools and rivers. They inhabit areas with boulder-covered or small rocky islands available for nesting with extensive herbaceous vegetation, shrubs and low trees. For the non-breeding population, winters are in shallow areas of inshore coastal waters; especially in water inlets where there are large mussel-beds but they also occur in freshwater habitats such as lakes and estuaries during migration (Ref. 83520). Feeds on clams, snails, barnacles, mussels and crabs found along the coast (Ref. 94965).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae
BirdLife International. 2010. (Αναφ. 83520)
IUCN Red List Status
(Αναφ. 130435: Version 2024-2)
CITES status (Αναφ. 108899)
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Population dynamicsΑύξησηMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionΑφθονία 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): 4.2 - 17.2, mean 9.2 (based on 2299 cells).
Fishing Vulnerability
Moderate vulnerability (44 of 100).
Price category
Unknown.