Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة; مياه مخلوطة القاع; سمكة نهرية (Ref. 51243). Temperate; 4°C - 25°C (Ref. 1672); 62°N - 42°N, 15°E - 61°E
Europe and Asia: In Europe, north of the Alps, from Meuse eastward to Neva drainages and Lake Ladoga; northern Black Sea basin from Danube eastward to Kuban, absent on the southern section; Caspian basin in Volga and Ural drainages. Not native to Great Britain, Scandinavia, Apennine and Iberian peninsulas, Crimea, and Adriatic, Aegean and White Sea basins. Locally introduced in Rhône drainage (France) and perhaps elsewhere (Ref. 59043).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm ?, range 11 - ? cm
Max length : 30.0 cm TL ذكر/ مختلط الجنس; (Ref. 556); 30.7 cm TL (female); common length : 15.0 cm TL ذكر/ مختلط الجنس; (Ref. 556)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 3; الأشعة الظهرية الناعمة (المجموع) : 5 - 6; شوكة شرجية: 3; أشعه شرجية لينه: 8 - 11; فقرات: 49 - 50. Broad midlateral stripe from eye to caudal base and narrow stripe from opercle at least to pelvic origin. Lamina circularis absent in males (Ref. 59043). Caudal fin with 14-16 rays (Ref. 40476).
Facultative air-breathing (Ref. 126274); Found in lower reaches of slow-flowing rivers, but can also be found in still pools (Ref. 9696), on sandy bottoms of ponds, pools and ditches. Adults are nocturnal which burrow into mud during dry periods and strong frosts. Usually, burrows are 20-30 cm deep, occasionally down to 70 cm during dry periods (Ref. 59043). During the day, they stay buried in the sand. Feed on insect larvae and small mollusks. Seldom captured with hook and line (Ref. 30578). Are sensitive to pollutants which accumulate in the sediment (Ref. 11941). Facultative air-breathers (Ref. 27368). A female specimen measuring 30.7 cm TL was recorded from Netherlands (Ref. 114650).
Male follows female into dense vegetation and forms a complete ring around her body, behind dorsal fin (Ref. 59043).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مصائد: غير ذات اهمية; طعم: usually
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00232 - 0.00821), b=3.08 (2.92 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.4 ±0.45 se; based on food items.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (tm=2; Fec=100,000-150,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
