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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).
Taxonomic Remarks
Genus Eschmeyer, pers. comm.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser; brackwasser demersal; tiefenbereich ? - 122 m (Ref. 57343). Tropical; 37°N - 35°S, 22°E - 148°W (Ref. 57343)
Indo-Pacific: East Africa to French Polynesia, north to Japan, south to Australia. Has not been collected from the Red Sea or Persian Gulf (Ref. 57343).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 45.0 cm SL Männchen/unbestimmt; (Ref. 57343); common length : 30.0 cm TL Männchen/unbestimmt; (Ref. 30573); max. veröff. Gewicht: 1.7 kg (Ref. 40637)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 13; Afterflossenstacheln: 2; Afterflossenweichstrahlen: 11 - 12. Golden, dusky olive brown above, scale rows each with a dark line; fins dusky (Ref. 5492). Body with 7 or 8 prominent dark stripes along the longitudinal scale rows above lateral line and 7-9 faint stripes below. Pectoral fin rays unbranched; 4th or 5th pectoral filament longest, 22-40% of SL. Posterior margin of maxilla reaching to (or slightly extending beyond) level of posterior margin of adipose eyelid. Lower tip of 7th proximal pterygiophore of 1st dorsal fin directed backwards. Lateral squamation on caudal fin unbranched (Ref. 40970).
Body shape (shape guide): elongated.
Occur over muddy bottoms of the continental shelf (Ref. 4340), from estuaries to coastal beaches and to relatively deep waters (less than 122 m) (Ref. 57343). Forms loosely-associated schools (Ref. 57343). Feeds on small crustaceans, fishes and other benthic organisms (Ref. 30573). Fish of 12 cm can be caught in large numbers (Ref. 9685).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquakultur: kommerziell; Sportfisch: ja
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 23.5 - 29.1, mean 28 °C (based on 2216 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00480 - 0.01443), b=3.08 (2.92 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.6 ±0.50 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Moderate vulnerability (42 of 100).
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Nährstoffe (Ref.
124155): Calcium = 144 [72, 248] mg/100g; Iron = 0.946 [0.479, 1.674] mg/100g; Protein = 18.9 [17.4, 20.5] %; Omega3 = 0.173 [0.101, 0.293] g/100g; Selenium = 67.4 [36.1, 134.0] μg/100g; VitaminA = 15 [7, 31] μg/100g; Zinc = 1.27 [0.89, 1.82] mg/100g (wet weight);