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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: Cuvier.

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

समुद्री; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; गहराई सीमा 15 - 55 m (Ref. 10799). Tropical; 22°N - 5°S, 26°W - 13°E (Ref. 57343)

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Eastern Atlantic: Senegal to Angola (Ref. 57402). Also reported from Mauritania (Ref. 55783).

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 200 cm TL पुल्लिंग / अलिंग; (Ref. 57402); common length : 150 cm TL पुल्लिंग / अलिंग; (Ref. 3659); अधिकतम प्रकाशित वज़न: 75.0 kg (Ref. 7386)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 9; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 12 - 13; गुदा कांटा: 3; ऐनल सौफट रेज़: 11 - 12. Diagnosis: pectoral fin with 4 threadlike filaments (Ref. 57402, 81658). Pectoral fin inserted very low on body, generally somewhat longer than upper part of fin (Ref. 57402).

Occurs in shallow coastal waters, over sandy and muddy bottoms, sometimes in brackish habitats (Ref. 57343, 81658). Enters estuaries (Ref. 57402), occasionally caught in fresh water (Ref. 57402, 81658). Very large specimens are only found in marine waters (Ref. 81658). Feeds on crustaceans and fishes (Ref. 10799, 81658). Flesh fairly tasteful (Ref. 57402).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

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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: 15 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां

FAO - मात्स्यिकी: landings; Publication: search | FishSource | Sea Around Us

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 22.3 - 28, mean 26 °C (based on 48 cells).

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

Bayesian length-weight: a=0.00661 (0.00510 - 0.00855), b=3.09 (3.03 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.66 se; based on food items.

Generation time: 2.7 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (K=0.34-0.41; assuming tm=3-4).

Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 3 data-limited stock assessments.

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Climate Vulnerability (Ref. 125649): Very high vulnerability (87 of 100).

Price category (Ref. 80766): High.

Nutrients (Ref. 124155): Calcium = 59.4 [32.4, 109.8] mg/100g; Iron = 0.818 [0.418, 1.451] mg/100g; Protein = 20.1 [18.5, 21.7] %; Omega3 = 0.213 [0.132, 0.349] g/100g; Selenium = 79.1 [38.5, 162.9] μg/100g; VitaminA = 6.04 [2.46, 14.30] μg/100g; Zinc = 0.742 [0.514, 1.115] mg/100g (wet weight);

Polydactylus quadrifilis (Cuvier, 1829)