Gygis alba   (Sparrman, 1786)

White tern
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

| Charadriiformes | Laridae

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

.  Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Introduzioni

Indo-Pacific and Atlantic Ocean

Length at first maturity / Size / Peso / Age

Maturity: Lm ?  range ? - ? cm Max length : 33.0 cm TL maschio/sesso non determinato; (Ref. 8812); Peso massimo pubblicato: 160.00 g (Ref. 356)

Short description Morfologia

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

Biologia     Glossario (es. epibenthic)

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).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Bibliografia | Coordinatore | Collaboratori

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

Threat to humans

Human uses


| FishSource |

Strumenti

E-book | Giuda pratica

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Nomi Comuni
Sinonimi
Predatori
Riproduzione
Maturità
Deposizione
Fecundity
Uova
Egg development
Age/Size
Accrescimento
Length-weight
Length-length
Morfologia
Larve
Abbondanza
Bibliografia
Mass conversion
Collaboratori
Immagini

Fonti Internet

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, ricerca) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 24.2 - 29.3, mean 27.9 (based on 1736 cells).
Resilienza (Ref. 69278): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (K=27.09).
Vulnerability (Ref. 71543): Low vulnerability (23 of 100).
Price category (Ref. 80766): Unknown.