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Polynemus dubius  Bleeker, 1853

Eastern paradise fish
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Polynemus dubius
Picture by Jean-Francois Helias / Fishing Adventures Thailand

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Polynemidae (Threadfins)
Etymology: Polynemus: Greek, poly = a lot of + Greek,nema = filament (Ref. 45335).   More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; freshwater; brackish; demersal; potamodromous (Ref. 51243).   Tropical

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

Asia: Malay Peninsula, Sumatra and Kalimantan.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 12693)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 14-16; Anal spines: 3; Anal soft rays: 12; Vertebrae: 25. First dorsal fin with 8 spines; 7 pectoral filaments, upper two filaments longer than total length; vomer with villiform teeth; orbit diameter 3-4% of standard length; posterior portion of maxilla less than orbit diameter (Ref. 49954).

Biology     Glossary (e.g. epibenthic)

Found in muddy or sandy waters of freshwater rivers and estuaries (Ref. 57343). Regularly enters freshwater streams during the spawning season, and probably at other times (Ref. 9685). Large numbers of adults and young caught during the rainy season in the Chao Phraya River and other rivers of that system. Feeds on crustaceans, small fishes, and benthic organisms (Ref. 57343). Marketed fresh (Ref. 12693). Small fish may be used as duck feed and fertilizer (Ref. 9685).

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

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)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

More information

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Ecology
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Common names
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Predators
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Spawning
Fecundity
Eggs
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Age/Size
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Length-weight
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Morphometrics
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Larvae
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Internet sources

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

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00194 - 0.01029), b=3.10 (2.89 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.7   ±0.55 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .