Striped threadfin (Polydactylus plebeius)

Scientific name: Polydactylus plebeius Broussonet, 1782

Striped threadfin (Polydactylus plebeius)

The Striped threadfin (Polydactylus plebeius) is a brackish-water fish of the family Polynemidae. Native range: Indo-Pacific, East Africa to French Polynesia, north to Japan, south to Australia. Has not been collected from the Red Sea or Persian Gulf.

Biology

Dorsal spines (total): 9; Dorsal soft rays (total): 13; Anal spines: 2; Anal soft rays: 11 - 12. Golden, dusky olive brown above, scale rows each with a dark line; fins dusky. 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.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Polydactylus plebeius
Family
Polynemidae (Threadfins)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
45.0
Common length
30.0
Depth range
122 m (400 ft)
Environment
Marine; brackish; demersal; depth range ? - 122 m
Climate
Tropical
Distribution
Indo-Pacific: East Africa to French Polynesia, north to Japan, south to Australia. Has not been collected from the Red Sea or Persian Gulf.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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