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Polydactylus multiradiatus  (Günther, 1860)

Australian threadfin
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Image of Polydactylus multiradiatus (Australian threadfin)
Polydactylus multiradiatus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; demersal; depth range 10 - 56 m (Ref. 45356), usually 10 - 56 m (Ref. 45356).   Tropical, preferred ?; 4°S - 34°S, 113°E - 154°E (Ref. 57343)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.0 cm FL male/unsexed; (Ref. 1844); 24.5 cm FL (female)

Biology     Glossary (e.g. epibenthic)

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

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Sex change occurs between 12-14 cm SL (Ref. 45356).

Main reference Upload your references | References | Coordinator | Collaborators

Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)

IUCN Red List Status (Ref. 115185)

  Least Concern (LC) 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00479 - 0.01378), b=3.11 (2.96 - 3.26), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.30 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.16).
Vulnerability (Ref. 59153):  Low vulnerability (18 of 100) .