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Polydactylus macrochir (Günther, 1867)

King threadfin
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Polydactylus macrochir   AquaMaps   Data sources: GBIF OBIS
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Image of Polydactylus macrochir (King threadfin)
Polydactylus macrochir
Picture by Cook, D.C.

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Günther.

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

marinhas; Água doce; estuarina demersal; catádromo (Ref. 51243); intervalo de profundidade 0 - 6 m (Ref. 57343). Tropical; 5°S - 28°S, 121°E - 154°E (Ref. 57343)

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Indo-West Pacific: southern New Guinea and northern Australia.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 170 cm FL macho/indeterminado; (Ref. 6390); common length : 48.0 cm FL macho/indeterminado; (Ref. 9685); peso máx. publicado: 45.0 kg (Ref. 9685); idade máx. registrada: 20 anos (Ref. 6390)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Body without spots nor stripes. Pectoral fin rays unbranched; 4th pectoral filament long, 40-53% of SL. Second spine of dorsal fin more robust than the rest. Posterior margin of maxilla extending considerably beyond level of posterior margin of adipose eyelid. Lower tip of 7th proximal pterygiophore of 1st dorsal fin directed backward. Lateral squamation on caudal fin unbranched (Ref. 40970).

Biologia     Glossário (p.ex. epibenthic)

Found in shallow, turbid waters coastal waters, estuaries, mangrove creeks, and mangrove-lined rivers (Ref. 57343), over sandbanks and mud substrates (Ref. 6390). Usually forms loose schools, although larger fish are more often observed in pairs or singly (Ref. 6390). Feeds on prawns and fish. Protandrous hermaphrodites.

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

King threadfin between 70 cm and 100 cm FL may be transitional hermaphrodites (they possess mature male and immature female reproductive tissue, and function as males (Ref. 28736)). However, most king threadfin less than 80 cm FL are males and most more than 95 cm FL are females (Ref. 28737). Transitional king threadfin are most often found in the months of June, July, August and September (Ref. 6390). There is little information on the larvae, although nursery areas are known to be inshore, shallow and of low salinity (Ref. 6390).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)

Status na Lista Vermelha da UICN (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless





Uso pelos humanos

Pescarias: espécies comerciais; peixe esportivo: sim
FAO - Publication: search | FishSource |

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Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Checar Observador de Peixes (FishWatcher) | CISTI | Catalog of Fishes: Gênero, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: Ir para, procura | World Records Freshwater Fishing | Registro zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 24.8 - 28.9, mean 28 °C (based on 575 cells).
Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00311 - 0.01469), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  4.0   ±0.4 se; based on diet studies.
Generation time: 7.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tmax=20).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).
Categoria de preço (Ref. 80766):   Very high.