Slender fivefinger threadfin (Polydactylus bifurcus) fish species and information / pictures of Slender fivefinger threadfin - Polydactylus bifurcus

Slender fivefinger threadfin (Polydactylus bifurcus) fish species information

Scientific Name
Polydactylus bifurcus

Common Name
Slender fivefinger threadfin

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 11. Body with 8 faint stripes along longitudinal scale rows above lateral line. Pectoral filaments 5. Second spine of dorsal fin very strong, 2.5 times width of 3rd spine. Lateral line bifurcated on caudal fin base, extending to posterior margins of upper and lower caudal fin lobes (Ref. 40970).

Classification

Classified By
Motomura, Kimura & Iwatsuki, 2001
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Threadfins (Polynemidae)

Distribution

Region
Eastern Indian Ocean
Distribution
Eastern Indian Ocean: Indonesia.
Range
2°N - 9°S, 96°E - 117°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
2 m
Zone
demersal
Environment
Marine; demersal; depth range ? - 2 m (Ref. 40970)
Trophic Level
3.6 s.e. 0.61 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
27.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Low vulnerability (23 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated