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Ameiurus nebulosus  (Lesueur, 1819)

Brown bullhead
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Native range | All suitable habitat
This map was computer-generated and has not yet been reviewed.
Ameiurus nebulosus   AquaMaps   Data sources: GBIF OBIS
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Image of Ameiurus nebulosus (Brown bullhead)
Ameiurus nebulosus
Picture by Zienert, S.

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (peixes com raios nas barbatanas) > Siluriformes (Catfish) > 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).

Ambiente / Clima / Intervalo Ecologia

; Água doce; estuarina demersal; intervalo de profundidade ? - 40 m (Ref. 1998).   Temperate; 0°C - 37°C (Ref. 35682); 54°N - 25°N

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

North America: Atlantic and Gulf Slope drainages from Nova Scotia and New Brunswick in Canada to Mobile Bay in Alabama in USA, and St. Lawrence-Great Lakes, Hudson Bay and Mississippi River basins from Quebec west to Saskatchewan in Canada and south to Louisiana, USA. Introduced into several countries. Several countries report adverse ecological impact after introduction. Asia: Iran and Turkey (Ref. 39702).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 55.0 cm TL macho/indeterminado; (Ref. 40637); common length : 25.0 cm TL macho/indeterminado; (Ref. 556); Peso máx. publicado: 2.7 kg (Ref. 40637); Idade máx. registada: 9 anos (Ref. 59043)

Descrição suscinta Morfologia | Morfometria

Espinhos dorsais (total): 1; Raios dorsais (total): 6-7; Espinhos anais 1. Caudal fin with 18-19 rays.

Biologia     Glossário (p.ex. epibenthic)

Occurs in pools and sluggish runs over soft substrates in creeks and small to large rivers. Also found in impoundments, lakes, and ponds. Rarely enters brackish waters (Ref. 1998). A nocturnal feeder that feeds mollusks, insects, leeches, crayfish and plankton, worms, algae, plant material, fishes and has been reported to feed on 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). Has 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).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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.

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Status na Lista Vermelha da IUCN (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Perigo para os humanos

  Potential pest




Uso pelos humanos

Pescarias: pouco comercial; Aquacultura: espécies comerciais; peixe esportivo: sim
FAO(pescarias: produção; publication : search) | FisheriesWiki | Sea Around Us

Mais informação

Nomes comuns
Sinônimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Idade/Tamanho
Crescimento
Comprimento-peso
Comprimento-comprimento
Frequências de comprimento
Morfometria
Morfologia
Larvas
Dinâmica larval
Recrutamento
Abundância
Referências
Aquacultura
Perfil para aquacultura
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Frequência alélica
Hereditariedade
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Mass conversion
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Stamps, Coins
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Fontes da internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00573 - 0.01519), b=3.07 (2.93 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  3.7   ±0.1 se; Based on diet studies.
Resiliência (Ref. 69278):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.47; tm=3; tmax=8).
Prior r = 1.01, 2 SD range = 0.75 - 1.36, log(r) = 0.01, SD log(r) = 0.15, Based on: 1 K, 2 tgen, 1 tmax, records
Vulnerabilidade (Ref. 59153):  Low to moderate vulnerability (30 of 100) .
Categoria de preço (Ref. 80766):   Unknown.