Ameiurus nebulosus, Brown bullhead : fisheries, aquaculture, gamefish

Ameiurus nebulosus (Lesueur, 1819)

Brown bullhead
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Image of Ameiurus nebulosus (Brown bullhead)
Ameiurus nebulosus
Foto de Zienert, S.

Clasificación / Nombres Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Ictaluridae (North American freshwater catfishes)
Etymology: Ameiurus: Greek, a = without + Greek, meiouros, -os, -on = without tail (Ref. 45335)nebulosus: nebulosus meaning clouded, in relation to mottled and grey coloring (Ref. 1998).
More on author: Lesueur.

Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología

; agua dulce demersal; potamodromo (Ref. 126106); rango de profundidad 0 - 12 m (Ref. 1998). Subtropical; 0°C - 37°C (Ref. 35682); 54°N - 25°N, 104°W - 61°W (Ref. 86798)

Distribución Territorios | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

North America: Atlantic and Gulf Slope drainages from Nova Scotia and New Brunswick in Canada to Mobile Bay in Alabama in USA; St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins from Quebec west to southeastern Saskatchewan in Canada, and south to Louisiana, USA. Introduced into several countries. Several countries report adverse ecological impact after introduction.

Longitud en la primera madurez / Tamaño / Peso / Edad

Madurez: Lm 26.6, range 20 - 33 cm
Max length : 55.0 cm TL macho / no sexado; (Ref. 40637); common length : 25.0 cm TL macho / no sexado; (Ref. 556); peso máximo publicado: 2.7 kg (Ref. 40637); edad máxima reportada: 9 años (Ref. 59043)

Descripción breve Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 1; Radios blandos dorsales (total) : 6 - 7; Espinas anales: 1. Caudal fin with 18-19 rays.
Body shape (shape guide): fusiform / normal.

Biología     Glosario (por ej. epibenthic)

Adults occur in pools and sluggish runs over soft substrates in creeks and small to large rivers. Also found in impoundments, lakes, and ponds (Ref. 86798). They rarely enter brackish waters (Ref. 1998). They are nocturnal feeders that feed on mollusks, insects, leeches, crayfish and plankton, worms, algae, plant material, fishes, eggs of least cisco, herring and lake trout (Ref. 1998). Juveniles (3-6 cm) feed mostly on chironomid larvae, cladocerans, ostracods, amphipods, bugs and mayflies (Ref. 1998). Can tolerate high carbon dioxide and low oxygen concentrations and temperatures up to 31.6 °C although experiments show upper lethal temp. to be 37.5 °C; resistant to domestic and industrial pollution (Ref. 1998). They have been observed to bury itself in mud to escape adverse environmental conditions (Ref. 1998). Prepared hot-smoked and also cooked in various ways (Ref. 1998).

Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Nests are built by one or both sexes. After a period of caressing each other with their barbels, male and female settle over the nest, face opposite directions (while maintaining body contact) and spawn. Although eggs are cared for by one or both parents, there have been reports of parents eating their own eggs. Caring entails fanning by the paired fins, moving and stirring by the barbels, and may be picked up and ejected from the mouth; this ensures hatching.

Referencia principal Suba sus referencias | Referencias | Coordinador | Colaboradores

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)

Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 14 October 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Potential pest





Usos humanos

Pesquerías: escaso valor comercial; Acuicultura: comercial; pesca deportiva: si
FAO - pesquerías: desembarques; Publication: search | FishSource |

Más información

Ciclo de vida
Reproducción
Madurez
Madurez/Gills rel.
Fecundidad
Puesta
Agregaciones de desove
Huevos
Desarrollo de los huevos
Larva
Dinámica larvaria
Anatomía
Superficie branquial
Cerebro
Otolito
Fisiología
Composición corporal
Nutrientes
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Pigmentos visuales
Sonido de peces
Enfermedades y parásitos
Toxicidad (CL50)
Genética
Genoma
Genética
Heterocigosidad
heritabilidad
Diversidad genética
Relacionados con el ser humano
Sistemas de acuicultura
Perfiles de acuicultura
Razas
Ciguatera cases
Sellos, monedas, varios
Divulgación
Colaboradores
Referencias
Referencias

Herramientas

Informes especiales

Descargar XML

Fuentes de Internet

Estimaciones basadas en modelos

Índice de diversidad filogenética (Referencia 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00640 - 0.01081), b=3.12 (3.04 - 3.20), in cm total length, based on LWR estimates for this species (Ref. 93245).
Nivel trófico (Referencia 69278):  3.7   ±0.1 se; based on diet studies.
Resiliencia (Referencia 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.47; tm=3; tmax=8).
Vulnerabilidad pesquera (Ref. 59153):  Moderate vulnerability (38 of 100). 🛈
Categoría de precios (Ref. 80766):   Unknown.