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Squalius cephalus  (Linnaeus, 1758)

Chub
إضافة ملاحظاتك Fish Watcher
Native range
This map was computer-generated and has not yet been reviewed.
Squalius cephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Squalius cephalus (Chub)
Squalius cephalus
Picture by Porcellotti et al.

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

شعاعيات الزعانف > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Leuciscinae

Issue
Leuciscus orientalis Nordmann, 1840 is considered valid in Eschmeyer (CofF ver. May 2011: Ref. 86870). This is allocated to Squalius in Ref. 84537, a valid name, but secondary homonym Squalius orientalis Heckel, 1847 needs a replacement name.

البيئة / مناخ / المدى البيئة

; المياه العذبة; مياه مخلوطة قاعية التغذية و المعيشة; pH range: 6.0 - 7.8; dH range: 8 - 25; سمكة نهرية (Ref. 51243); نطاق العمق 0 - ? m.   Temperate; 4°C - 20°C (Ref. 2059), preferred ?; 64°N - 35°N, 10°W - 60°E

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Eurasia: North, Baltic, northern Black, White, Barents and Caspian Sea basins, Atlatinc basins southward to Adour drainages (France), Great Britain north to 56°C, Scandinavia: southern Finland, Sweden north to abut Stockholm. Mediterranean basin from Var to Hérault (possibly Aude) (France) drainages. Introduced elsewhere, Naturally absent from Italy and Adriatic basin.

Length at first maturity / الحجم / وزن / العمر

Maturity: Lm ?, range 7 - 30 cm
Max length : 60.0 cm SL ذكر/ مختلط الجنس; (Ref. 59043); common length : 30.0 cm TL ذكر/ مختلط الجنس; (Ref. 556); أعلا وزن تم نشرة: 8.0 kg (Ref. 2196); العمر: 22 سنين (Ref. 41616)

وصف مختصر الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع): 3; الأشعة الظهرية الناعمة (المجموع): 7-9; شوكة شرجية 3; أشعه شرجية لينه: 7 - 10; فقرات: 42 - 48. Differs from its congeners in France, North, Baltic, Arctic, Black and Caspian Sea basins by the possession of the following characters: dorsal profile with a well-marked discontinuity between head and trunk; a row of black pigments along free margin of each flank scale, forming a regular reticulate pattern, with no or very few pigments on central part of scales; anal and pelvic fins orange to red; dorsal fin with 8½ branched rays; anal fin with 8½ branched rays (rarely 9½); scales on lateral line 40-45 + 2-3; mouth terminal, with well marked chin; lower jaw tip not included in the upper lip; interorbital distance 37-42% HL; postorbital distance 47-51% HL; eye diameter 17-22% HL, 1.5-2.3 times in snout length; body depth 22-27% SL; lower jaw long, length greater than depth of operculum; iris whitish; pharyngeal teeth 2,5-5,2; in stretched anal fin of individuals larger than about 15 cm SL, distance between tips of first and last branched rays usually greater than caudal peduncle depth (Ref. 59043). Caudal fin with 19 rays (Ref. 2196).

أحياء     المصطلحات (على سبيل المثال epibenthic)

Most abundant in small rivers and large streams of barbel zone with riffles and pools. Found along shores of slow-flowing lowland rivers, even in very small mountain streams, and in large lake, undertaking spawning migration to inflowing streams. Adults are solitary while juveniles occur in groups. Feeding larvae and juveniles live in very shallow shoreline habitats. Feed on a wide variety of aquatic and terrestrial animals and plant material. Large individuals prey predominantly on fishes. Breed in fast-flowing water above gravel bottom, rarely among submerged vegetation. Often form fertile hybrids with Alburnus alburnus (Ref. 59043). Popular with amateur sport fishermen. Can be caught with various baits and lures. The flesh is of poor quality (Ref. 38587).

Life cycle and mating behavior النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae

Spawning occurs in fast-flowing water above gravel bottom, rarely among submerged vegetation. Female spawn more than once during a season, individual females spawn with several males. Males assemble at spawning site and follow ripe females, often with much splashing, to shallow riffles. Females lays sticky eggs into the gravel (Ref. 59043). Pale yellow eggs are found attached to gravel, weed and stones in flowing water (Ref. 41678).

المرجع الرئيسي Upload your references | مراجع | المنظم | المتعاونين

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. 115185)

CITES (Ref. 94142)

Not Evaluated

خطر للأنسان

  Harmless




استخدامات بشرية

مصائد: غير مهمة تجارياً; لعبة سمكه: نعم
FAO(الأستزراع المائي: الأنتاج; مصائد: الأنتاج; publication : search) | FisheriesWiki | البحر حولنا

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