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

Issue
Genus Eschmeyer, pers. comm.

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

marinhas; estuarina demersal; anfídromo (Ref. 51243); intervalo de profundidade 16 - 73 m (Ref. 57343). Tropical; 37°N - 11°S, 75°E - 149°E

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

Eastern Indian Ocean and Western Pacific: southwestern India to Papua New Guinea, north to Japan. May rarely occur in the Philippines, eastern Indonesia, and Papua New Guinea (Ref. 57343). Not in Red Sea (Ref. 84159).

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 30.0 cm TL macho/indeterminado; (Ref. 30573); common length : 20.0 cm TL macho/indeterminado; (Ref. 30573)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 9; Raios dorsais moles (total) : 12 - 13; Espinhos anais: 3; Raios anais moles: 11 - 13; Vértebras: 24. With 6 pectoral filaments; uppermost not reaching posterior tip of pectoral fin. Pectoral fin, rays moderate, 19-25% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine short, 5-8% of SL. Atrophied swim bladder, like a string. A large black spot anteriorly on lateral line (Ref. 40958, 41110). No upper lip; lower lip well-developed except at symphysis. Operculum broadly rounded; preoperculum coarsely serrated. Color is golden-olive above ,silvery below. A large oval blotch is at the start of the lateral line (Ref. 561).

A marine species found on sandy and muddy bottoms of the continental shelf (Ref. 4340, 11230, 57343). Frequently enters estuaries (Ref. 9685, 11230). Feeds mainly on small crustaceans (especially shrimps), fishes and benthic organisms; also on sponges and fish scales (Ref. 9685). The progression in this hermaphrodite is protandrous, changing from a juvenile to a hermaphrodite, then a female (Ref. 9685).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Não avaliado

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

Pescarias: espécies comerciais; peixe desportivo: sim

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 23.5 - 28.4, mean 27.7 °C (based on 227 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01479 (0.00929 - 0.02354), b=3.04 (2.91 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Nível Trófico (Ref. 69278): 3.8 ±0.57 se; based on food items.

Generation time: 3.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resiliência (Ref. 120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (31 of 100).

Categoria de preço (Ref. 80766): Very high.

Polydactylus sextarius (Bloch & Schneider, 1801)