Australian threadfin (Polydactylus multiradiatus) fish species and information / pictures of Australian threadfin - Polydactylus multiradiatus

Australian threadfin (Polydactylus multiradiatus) fish species information

Scientific Name
Polydactylus multiradiatus

Common Name
Australian threadfin

Biology
Inhabits coastal waters over sand or mud bottoms. Feeds on prawns. Often taken in association with Penaeus prawns in the Gulf of Carpentaria.

Classification

Classified By
G?nther, 1860
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Threadfins (Polynemidae)

Distribution

Region
Eastern Indian Ocean and Western Pacific
Distribution
Eastern Indian Ocean and Western Pacific: known only from southern Indonesia (Timor and Arafura seas) and northern Australia (Exmouth Gulf, Western Australia to Clarence River, New South Wales) (Ref. 9685). The type locality (China) may most likely be erroneous.
Range
4°S - 34°S, 113°E - 154°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
10 m
Depth To - meters
56 m
Zone
demersal
Environment
Marine; brackish; demersal; depth range 10 - 56 m (Ref. 45356), usually 10 - 56 m (Ref. 45356)
Trophic Level
3.04 s.e. 0.22 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
21.0 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 (18 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)