King threadfin (Polydactylus macrochir)

Scientific name: Polydactylus macrochir G?nther, 1867

King threadfin (Polydactylus macrochir)

The King threadfin (Polydactylus macrochir) is a freshwater fish of the family Polynemidae. Native range: Indo-West Pacific, southern New Guinea and northern Australia.

Biology

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.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Polydactylus macrochir
Family
Polynemidae (Threadfins)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
170
Common length
48.0
Depth range
0–6 m (0–20 ft)
Environment
Marine; freshwater; brackish; demersal; catadromous; depth range 0 - 6 m
Climate
Tropical
Distribution
Indo-West Pacific: southern New Guinea and northern Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial; gamefish: yes
Resilience
Low, minimum population doubling time 4.5 - 14 years (tmax=20)

Sources

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

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