Teleostei (teleosts) >
Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335); persicus: Named for its type locality, Persian Gulf (Ref. 40958).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 10 m (Ref. 57343). Tropical; 31°N - 23°N, 47°E - 57°E (Ref. 57343)
Western Indian Ocean: Persian Gulf.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm SL male/unsexed; (Ref. 57343)
Dorsal spines (total): 9; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 12; Vertebrae: 24. With 6 pectoral filaments; uppermost extending well beyond posterior tip of pectoral fin. Pectoral fin, rays short, 18-20% of SL; fin base short , 10-11% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 6-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958).
Found on sandy and muddy bottoms (Ref. 57343).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
Threat to humans
Harmless
Human uses
Fisheries: commercial
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00764 - 0.03951), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).