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Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polynemus: Greek, poly = a lot of + Greek,nema = filament (Ref. 45335); aquilonaris: From the Latin for northern, in reference to the northern distribution (Indochina) of the species, compared with that of the related Polynemus dubius (Ref. 49954).
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة; مياه مخلوطة القاع. Tropical
Asia: Chao Phraya and Mekong River systems and from Lake Tonle Sap and related rivers.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 15.8 cm SL ذكر/ مختلط الجنس; (Ref. 49954)
الأشواك الظهرية (المجموع) : 9; الأشعة الظهرية الناعمة (المجموع) : 15 - 19; شوكة شرجية: 3; أشعه شرجية لينه: 11 - 13; فقرات: 25. Eight first dorsal fin spines; 7 pectoral filaments, upper 2 filaments longer than TL; vomer with villiform teeth; orbit diameter 4% of SL; posterior portion of maxilla less than orbit diameter (Ref. 49954).
Body shape (shape guide): fusiform / normal.
Found on sandy or muddy bottoms of freshwater rivers and estuaries (Ref. 49954). Feeds on small crustaceans, small fishes, and benthic organisms (Ref. 57343). Exported to Japan as an ornamental fish (Ref. 57343). Esteemed food fish in the Chao Phraya and Mekong rivers and at Tonle Sap Lake (Ref. 57343).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | 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 2025-1)
استخدامات بشرية
مصائد: تجاري; حوض مائي: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00308 - 0.01483), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.8 ±0.56 se; based on food items.
المرونه (مرجع
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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