Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة; pH range: 7.0 - ? ; dH range: 20 - ?. Temperate; 10°C - 24°C (Ref. 2059)
Asia: China, Korea, Japan and Amur River basin. At least one country reports adverse ecological impact after introduction.
Length at first maturity / الحجم / وزن / العمر
النضج: Lm ?, range 20 - ? cm
Max length : 47.0 cm TL ذكر/ مختلط الجنس; (Ref. 1441); 34.3 cm TL (female); common length : 26.0 cm TL ذكر/ مختلط الجنس; (Ref. 56557); أعلا وزن تم نشرة: 1.7 kg (Ref. 56557)
فقرات: 42 - 44. Both sides of the body with 7-11 large and blackish spots. Deep body with clearly convex dorsal profile. Head length shorter than body depth. Snout length shorter or equal to postorbital head length. Lips not developed, lateral lobes of lower lip narrow, without folds, the median process large and marked. Barbel length slightly thick, 1/2-2/3 of eye diameter. Dorsal spine strong, equal to HL. Origin of dorsal fin nearer the tip of snout than the caudal base (Ref. 38453). Anal fin with 6 1/2 branched anal rays; last simple dorsal ray ossified, spine-like (Ref. 43281).
Body shape (shape guide): fusiform / normal.
Adults usually found in streams and creeks with moderate flow and sandy bottom (Ref. 43281). Feed mainly on insects and mollusks in summer and on crustaceans in winter (Ref. 1441)
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Mature at 3 years of age. Spawns from May to June, with water temperatures from 19-25 C°. Eggs are pasted at underwater plants. Egg diameter about 2mm. Development time about 4 days. Larvae live pelagic for the first 6 days.
Kottelat, M., 2006. Fishes of Mongolia. A check-list of the fishes known to occur in Mongolia with comments on systematics and nomenclature. The World Bank, Washington, DC. 103 p. (Ref. 57778)
IUCN Red List Status (Ref. 130435: Version 2025-1)
خطر للأنسان
Potential pest (Ref. 43281)
استخدامات بشرية
مصائد: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00661 - 0.00954), b=3.13 (3.08 - 3.18), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.5 ±0.47 se; based on food items.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (tm=3).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
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