Aves |
Charadriiformes |
Laridae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 1 m (Ref. 93225). Subtropical; 11°N - 42°S, 98°W - 70°W
Southeast Pacific. From Costa Rica to Chile. Tropical to subtropical.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm Max length : 57.0 cm TL hane/ej könsbestämd; (Ref. 84934); publicerad maxvikt: 740.00 g (Ref. 356)
The world's only night-feeding gull; It pursuits squid and nocturnal fish at open sea (Ref. 356). Breeding attempts occur between migration events (Ref. 93225). It feeds by surface plunging, having access to only 1 meter of the water column (Ref. 93225), and feeds between 16-32 km from coastline (Ref. 356). Foraging activity increases following the DVM cycle, during new moon periods (Ref. 93225).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Breeding is asynchronous, with breeding periods of different birds overlap to varying degrees.
Enticott, J. and D. Tipling 1997 Seabirds of the World: the complete reference. Singapore: New Holland (Publishers) Ltd. 234 p. (Ref. 84934)
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
Fishing Vulnerability
Moderate vulnerability (43 of 100).
Price category
Unknown.