Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal; profondeur ? - 366 m, usually 25 - ? m (Ref. 27547). Temperate; 69°N - 42°N
North America: St. Lawrence-Great Lakes and Arctic basins from western Quebec in Canada and New York in USA west to Alberta in Canada and north to Northwest Territories in Canada.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL mâle / non sexé; (Ref. 5723); common length : 12.5 cm TL mâle / non sexé; (Ref. 12193)
A dwarf form (Ref. 27547). Inhabits bottoms of deep, cold lakes. Feeds on small crustaceans and insects (Ref. 27547).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
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=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.42 se; based on food items.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).