Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة القاع. Temperate; 50°N - 45°N
North America: St. Lawrence River drainage in Quebec, Canada.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 72.0 cm TL ذكر/ مختلط الجنس; (Ref. 5723); common length : 47.5 cm TL ذكر/ مختلط الجنس; (Ref. 12193)
Occurs in rocky pools, backwaters and swift runs of medium to large rivers.
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
IUCN Red List Status (Ref. 130435)
في خطر (EN) (A2c; B1ab(v)+2ab(v)); Date assessed: 01 November 2007
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=0.01148 (0.00483 - 0.02731), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.2 ±0.43 se; based on food items.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).