Aves |
Sphenisciformes |
Spheniscidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
. Subtropical
Indo-West Pacific: Australia and New Zealand. Subtropical to temperate.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 91362); publicerad maxvikt: 2.1 kg (Ref. 356)
This is a gregarious species that nests in burrows, hollows under bushes or rocks, and is observed to return to land during dusk (Ref. 91362). It is observed to be nocturnal on land (Ref. 84934). Pursuit diving (Ref. 91362).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Life cycle: Eggs are incubated for 5 to 6 weeks and develop into fledgelings at 8 weeks of age. Clutches are laid twice a year.
Harrison, P. 1987 Seabirds of the world: a photographic guide. Christopher Helm, Hong Kong, 317p. (Ref. 91362)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Resiliens
Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=8.21-31.58).
Fishing Vulnerability
Low to moderate vulnerability (30 of 100).
Price category
Unknown.