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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: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; لب شور نزديك كف زي; تغييرات عمق 0 - 55 m (Ref. 26912). Tropical; 41°N - 14°S, 93°W - 35°W (Ref. 57343)
Western Atlantic: New Jersey, USA to Salvador, Brazil. Reported to range to Uruguay (Ref. 9626). Not occurring in the northern and western Gulf of Mexico.
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 57343); common length : 20.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 3796)
خارهاي باله پشتي (کل) : 8 - 9; شعاع نرم باله پشتي (کل) : 11; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 12 - 14.
Found on sandy and muddy bottoms of coastal waters, estuaries and mangroves, and occasionally in the surf (Ref. 57343). Young aggregate near river mouths (Ref. 57343). Common around islands (Ref. 9710). Nocturnal feeder, taking crustaceans, chaetognaths, plant material, and polychaetes (Ref. 57343). May have a prolonged spawning season (Ref. 57343).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 22.9 - 28, mean 26.4 °C (based on 440 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00541 - 0.00807), b=3.11 (3.05 - 3.17), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.4 se; based on diet studies.
جهندگی (Ref.
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).
Nutrients (Ref.
124155): Calcium = 176 [88, 325] mg/100g; Iron = 1.17 [0.60, 2.03] mg/100g; Protein = 19.5 [18.0, 21.1] %; Omega3 = 0.272 [0.172, 0.423] g/100g; Selenium = 51.1 [27.2, 99.4] μg/100g; VitaminA = 16.1 [7.3, 34.6] μg/100g; Zinc = 1.37 [0.95, 1.99] mg/100g (wet weight);