Aves |
Charadriiformes |
Laridae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 0 - 1 m (Αναφ. 93225). Subtropical; 11°N - 42°S, 98°W - 70°W
Southeast Pacific. From Costa Rica to Chile. Tropical to subtropical.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm Max length : 57.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 84934); μεγ. δημοσιευμένο βάρος: 740.00 g (Αναφ. 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
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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. (Αναφ. 84934)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Population dynamicsΑύξησηMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionΑφθονία Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Fishing Vulnerability
Moderate vulnerability (43 of 100).
Price category
Unknown.
