Norfolk Island country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: C: Ref. 89276.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Holdaway, R.N., T.H. Worthy and A.J.D. Tennyson, 2001
National Database:

Common names from other countries

Gaviotín albo, ... more

Classification / Names / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Charadriiformes (Shorebirds) > Laridae ()

Environment: milieu / climate zone / depth range / distribution range Ekologi

. Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Indo-Pacific and Atlantic Ocean

Length at first maturity / Size / Vikt / Age

Maturity: L_m ? range ? - ? cm Max length : 33.0 cm TL hane/ej könsbestämd; (Ref. 8812); publicerad maxvikt: 160.00 g (Ref. 356)

Short description Morfologi

Culmen: 3.2 cm; tarsus: 1.44 cm; wing: 25.2 cm.

Total Length: 28 to 33 cm; Wingspan: 70 to 87 cm (Ref. 8812). Coastal (Ref. 356). Exclusively marine. Breeds at many tropical and subtropical oceanic islands (Ref. 91362). Solitary breeder; uniquely, lays a single egg on tree branch without any nest. Inquisitive; hovers around nest site in presence of human intruders (Ref. 91362). Exhibits dipping behavior (Ref. 356) or surface diving (Ref. 122680). Feeds mainly on fish (Refs. 81748, 122680) driven to the surface by large, predatory fish (Ref. 122680). Diet consists mostly of juvenile goatfish and flying fish (Ref. 122680).

Main reference referenser | Koordinator | Medarbetare

Stiles, F.G. 1984. (Ref. 5856)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 17 August 2022

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Human uses

| FishSource |

Verktyg

E-book | Fälthandbok

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag

Populärnamn
synonymer
Predatorer
Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development

Age/Size
Tillväxt
Length-weight
Length-length
Morfologi
Larver
Abundans

referenser
Mass conversion

Medarbetare
Bilder

Internet-källor

Estimates based on models

Preferred temperature (Ref. 115969): 24.2 - 29.3, mean 27.9 (based on 1736 cells).

Resiliens (Ref. 69278) Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=27.09).

Vulnerability (Ref. 71543): Low vulnerability (23 of 100).

Price category (Ref. 80766): Unknown.

Gygis alba (Sparrman, 1786)