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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; demersal; depth range 5 - 66 m (Ref. 32117), usually 5 - 16 m (Ref. 32117). Subtropical, preferred ?; 42°N - 18°N, 98°W - 71°E (Ref. 57343)

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

Western Atlantic: New York and along the coast to the western coast of Yucatán, Mexico (Ref. 57343). Some authors report this species as occurring throughout northern South America (Ref. 5217).

Length at first maturity / Size / Weight / Age

Maturity: L_m 19.0, range 17 - 21 cm
Max length : 33.0 cm TL male/unsexed; (Ref. 5217); common length : 25.0 cm TL male/unsexed; (Ref. 5217)

Occurs on sand or mud bottoms and on beaches, especially on the surf (Ref. 57343).

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)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

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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=0.00407 (0.00240 - 0.00691), b=3.07 (2.92 - 3.22), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.6 ±0.5 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (tm<1).

Vulnerability (Ref. 59153): Low vulnerability (16 of 100) .

Price category (Ref. 80766): Very high.

Polydactylus octonemus (Girard, 1858)