Polydactylus sexfilis, Sixfinger threadfin : fisheries, aquaculture, gamefish, aquarium

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Polydactylus sexfilis (Valenciennes, 1831)

Sixfinger 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 sexfilis   AquaMaps   Data sources: GBIF OBIS
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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: Valenciennes.

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

marien; zoet water; brak water rifbewoner; diepte 1 - 50 m (Ref. 57343), usually 20 - 50 m (Ref. 9685). Tropical; 34°N - 23°S, 50°E - 148°W (Ref. 57343)

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Indo-Pacific: mainly around oceanic islands. Known from Mauritius, Seychelles, Kenya and many islands of the northern Indian Ocean; then from Indonesia north to the Ryukyu, Ogasawara and Yaeyama islands and east to the Hawaiian Islands, French Polynesia and Pitcairn. Has not been collected in Australia (Ref. 57343).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL mannelijk / geslacht onbekend; (Ref. 4887); max. gepubliceerd gewicht: 3.2 kg (Ref. 4699)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 9; Dorsale zachte stralen (totaal): 13; Anale stekels 3; Anale zachte stralen: 11. Body uniformly golden silver; occasionally with several faint dark stripes along longitudinal scale rows above and below lateral line. Pectoral filaments 6 with tip of uppermost filament reaching to or slightly beyond level of posterior tip of upper part of pectoral fin (Ref. 41110).

Biologie     Verklarende woordenlijst (bv. epibenthic)

This schooling species occurs along sandy and rocky shorelines and over sandy lagoon bottoms, often in zones of turbulence (Ref. 9685). Benthopelagic (Ref. 58302). Often encountered in river mouths or brackish mangrove estuaries. Feeds mainly on crustaceans (shrimps and crabs), polychaete worms, other benthic invertebrates; also on teleosts (Ref. 9685). A lunar spawning rhythm occurs close to shore (Ref. 9685). Sexual maturity in males occurs at 12 to 15 cm (Ref. 9685). Subsequently undergoes sex reversal passing through a hermaphroditic stage, and become female between 18 and 24 cm (Ref. 9685). The potential of this species for aquaculture has been studied (Ref. 9685).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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 op de Rode Lijst van het IUCN (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: commercieel; Aquacultuur: experimenteel; sportvis: ja; Aquarium: Commercieel
FAO - Aquacultuur: productie; ; Publication: search | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 123201): 24.1 - 29, mean 27.9 °C (based on 1038 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.01045 - 0.03170), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.4   ±0.49 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Prijsklasse (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 38.5 [16.0, 64.6] mg/100g; Iron = 0.484 [0.247, 0.933] mg/100g; Protein = 19.8 [18.0, 21.6] %; Omega3 = 0.111 [0.072, 0.175] g/100g; Selenium = 37.4 [19.5, 80.0] μg/100g; VitaminA = 31.6 [8.9, 109.8] μg/100g; Zinc = 1.02 [0.68, 1.55] mg/100g (wet weight);