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Siluriformes (Catfishes) >
Ictaluridae (North American freshwater catfishes)
Etymology: Pylodictis: Greek, pylos = mud + Greek, ichthys = fish (Ref. 45335); olivaris: olivarus meaning olive colored (Ref. 10294).
More on author: Rafinesque.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal; potamodrome (Ref. 126106). Subtropical; ? - 33°C (Ref. 12741); 47°N - 26°N, 108°W - 80°W (Ref. 86798)
North America: Lower Great Lakes and Mississippi River basins from western Pennsylvania to White-Little Missouri River system in North Dakota, and south to Louisiana in USA; Gulf Slope from Mobile Bay drainage in Georgia and Alabama in USA to Mexico. Transplanted elsewhere in USA.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 48.3, range 46 - 50.8 cm
Max length : 155 cm TL mâle / non sexé; (Ref. 86798); poids max. publié: 55.8 kg (Ref. 40637); âge max. reporté: 25 années (Ref. 120825)
Adults inhabit pools with logs and other debris in low-gradient to moderate-gradient, small to large rivers. Also found in lakes and impoundments. Young occur in rocky and sandy runs and riffles (Ref. 5723, 86798). Juveniles feed on aquatic insect immature in riffle areas (Ref. 10294). Older individuals consume crayfish, clams and fishes (Ref. 93252).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui; Aquarium: Aquariums publics
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00589 (0.00444 - 0.00780), b=3.11 (3.03 - 3.19), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.8 ±0.3 se; based on diet studies. |
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Generation time |
7.8 (6.9 - 9.5) years. Estimated as median ln(3)/K based on 24 growth studies. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.06-0.38; tm=3-6; tmax=34; Fec=6,900). |
Vulnérabilité de la pêche (Ref. 59153) |
High vulnerability (62 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Unknown.
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Nutriments (Ref. 124155) |
Calcium = 32.2 [18.3, 73.4] mg/100g; Iron = 1.17 [0.65, 2.08] mg/100g; Protein = 17.1 [15.0, 18.9] %; Omega3 = 0.467 [0.192, 1.143] g/100g; Selenium = 77.9 [32.5, 172.5] μg/100g; VitaminA = 14.8 [5.0, 45.4] μg/100g; Zinc = 0.595 [0.403, 0.893] mg/100g (wet weight); |