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> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Girard.

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

Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 5 - 66 m (Ref. 32117), usually 5 - 16 m (Ref. 32117). Subtropical; 42°N - 18°N, 98°W - 71°E (Ref. 57343)

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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 / Μέγεθος / Βάρος / Age

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

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

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

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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)

Least Concern (LC) ; Date assessed: 06 January 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 123201): 23.3 - 27.9, mean 26.4 °C (based on 459 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00407 (0.00237 - 0.00700), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Ελαστικότητα (Ref. 120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (tm<1).

Fishing Vulnerability (Ref. 59153): Low vulnerability (23 of 100).

Price category (Ref. 80766): Very high.

Nutrients (Ref. 124155): Calcium = 166 [72, 461] mg/100g; Iron = 1.91 [0.82, 4.18] mg/100g; Protein = 20.1 [18.3, 21.9] %; Omega3 = 0.375 [0.180, 0.781] g/100g; Selenium = 47.3 [17.0, 122.9] μg/100g; VitaminA = 3.98 [1.05, 15.64] μg/100g; Zinc = 1.04 [0.62, 1.78] mg/100g (wet weight);

Polydactylus octonemus (Girard, 1858)