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Teleostei (teleosts) > Carangaria/misc (Various families in series Carangaria) > 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: L_m ? range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 12693)

Short description Identification keys | 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).

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. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 13 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00562 (0.00268 - 0.01179), b=3.06 (2.87 - 3.25), 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. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (14 of 100).

Polynemus dubius Bleeker, 1853