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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Temperate
Europe: Lake Onega in Russia.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 39.0 cm SL ذكر/ مختلط الجنس; (Ref. 59043); العمر: 19 سنين (Ref. 59043)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
Diagnosed from other cisco species in Europe by possessing the following characters: in life and shortly after death, head and body dark grey to black with violet iridescences; eye diameter 22-27% HL; lateral line straight; and gill rakers 41-46. Differs from sympatric Coregonus albula in Lake Onega by having all fins dark grey to black (vs. hyaline), eggs dark yellowish pink (vs. pale yellow); and usually attaining maturity at 20 cm SL (vs. 9-12 cm SL) (Ref. 59043).
Found in lakes at all depths. Preys on zooplankton and small benthos during juvenile stage and switches to fish diet at 17-20 cm SL. Life span ranges from 7-9 years, with exceptional records up to 19 years (Ref. 59043).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00262 - 0.01101), b=3.22 (3.06 - 3.38), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (tm=4-6).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (38 of 100).
