Teleostei (teleosts) > Siluriformes
(Catfishes) > Ictaluridae
(North American freshwater catfishes)
Etymology: Ameiurus: Greek, a = without + Greek, meiouros, -os, -on = without tail (Ref. 45335); catus: catus, meaning cat (Ref. 10294).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; potamodromous (Ref. 51243). Subtropical; 43°N - 24°N, 89°W - 71°W
North America: Rivers of the Atlantic coastal states of USA from Florida to New York.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 95.0 cm TL male/unsexed; (Ref. 40637); common length : 30.5 cm TL male/unsexed; (Ref. 12193); max. published weight: 9.8 kg (Ref. 40637); max. reported age: 14 years (Ref. 72508)
Sluggish, mud-bottomed pools, open channels, and backwaters of small to large rivers; also in lakes and impoundments. Feeds on wide variety of fishes, insects and crustaceans (Ref. 27549).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hardman, M. and L.M. Page, 2003. Phylogenetic relationships among bullhead catfishes of the genus Ameiurus (Siluriformes: Ictaluridae). Copeia 2003(1):20-33. (Ref. 54507)
IUCN Red List Status (Ref. 126983)
Threat to humans
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00450 - 0.01340), b=3.09 (2.93 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.45 se; based on food items.
Generation time: 4.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-4; tmax=14; Fec=1,000-4,000).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (43 of 100).
Nutrients (Ref. 124155
): Calcium = 52.8 [32.4, 125.6] mg/100g; Iron = 1.02 [0.65, 1.75] mg/100g; Protein = 17.3 [15.4, 19.2] %; Omega3 = 0.35 [0.20, 0.64] g/100g; Selenium = 28.3 [16.2, 56.6] μg/100g; VitaminA = 7.05 [2.98, 16.53] μg/100g; Zinc = 0.758 [0.538, 1.027] mg/100g (wet weight);