Sixfinger threadfin (Polydactylus sexfilis) fish species and information / pictures of Sixfinger threadfin - Polydactylus sexfilis

Sixfinger threadfin (Polydactylus sexfilis) fish species information

Scientific Name
Polydactylus sexfilis

Common Name
Sixfinger threadfin

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 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).

Classification

Classified By
Valenciennes, 1831
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Threadfins (Polynemidae)

Distribution

Region
Indo-Pacific
Distribution
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).
Range
34°N - 23°S, 50°E - 148°W

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
1 m
Depth To - meters
50 m
Zone
reef-associated
Environment
Marine; freshwater; brackish; reef-associated; depth range 1 - 50 m (Ref. 57343), usually 20 - 50 m (Ref. 9685)
Trophic Level
3.43 s.e. 0.49 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
True
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
61.0 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: commercial; aquaculture: experimental; gamefish: yes; aquarium: commercial
Vulnerability
Low to moderate vulnerability (33 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated