Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal; pH range: 7.0 - 7.5; dH range: 15 - ?. Temperate; 4°C - 22°C (Ref. 2060); 47°N - 28°N
North America: Eastern Rivers of USA and Canada. At least one country reports adverse ecological impact after introduction.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 30.5 cm TL mâle / non sexé; (Ref. 40637); common length : 10.8 cm TL mâle / non sexé; (Ref. 12193); poids max. publié: 790.00 g (Ref. 4699)
Rocky and sandy pools of creeks and small to medium rivers; rocky and vegetated lake margins (Ref. 5723). Adults feed on terrestrial insects and both immature and adult aquatic insects, particularly larger varieties such as mayflies and dragonflies. Juveniles consume benthic organisms such as dipteran larvae (Ref. 10294).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
The female lays around 1000 eggs in the depression created by the male who later takes care of eggs and young alone (Ref. 26281).
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: Version 2025-2 (Global))
Menace pour l'homme
Potential pest (Ref. 1986)
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00520 - 0.01330), b=2.97 (2.84 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.2 ±0.0 se; based on diet studies.
Résilience (Réf.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Fec=1000).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (21 of 100).
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