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Ameiurus nebulosus (Lesueur, 1819)
BROWN BULLHEAD
Life   Vertebrata   Fish   Ictaluridae   Ameiurus


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Ameiurus nebulosus, Brown bullhead : fisheries, aquaculture, gamefish
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Ameiurus nebulosus ( Lesueur , 1819 )

Brown bullhead Upload your photos  and  videos
Pictures | Stamps, Coins Misc. | Google image Image of Ameiurus nebulosus (Brown bullhead) Ameiurus nebulosus
Picture by Zienert, S.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 .

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; depth range 0 - 12 m (Ref. 1998 ). Subtropical; 0°C - 37°C (Ref. 35682 ); 54°N - 25°N, 104°W - 61°W (Ref. 86798 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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.

Length at first maturity / Size / Weight / Age

Maturity: L m 26.6 , range 20 - 33 cm
Max length : 55.0 cm TL male/unsexed; (Ref. 40637 ); common length : 25.0 cm TL male/unsexed; (Ref. 556 ); max. published weight: 2.7 kg (Ref. 40637 ); max. reported age: 9 years (Ref. 59043 )

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6-7; Anal spines : 1. Caudal fin with 18-19 rays.

Biology     Glossary (e.g. epibenthic)

Occurs in pools and sluggish runs over soft substrates in creeks and small to large rivers. Also found in impoundments, lakes, and ponds (Ref. 86798 ). 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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.

Main reference Upload your references | References | Coordinator | Collaborators

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 )

IUCN Red List Status (Ref. 130435 )

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

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Potential pest





Human uses

Fisheries: minor commercial; aquaculture: commercial; gamefish: yes FAO - Fisheries: landings ; Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Fisheries: landings ; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00871 (0.00540 - 0.01405), b=3.09 (2.95 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.7   ±0.1 se; based on diet studies. Resilience (Ref. 120179 ):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.47; tm=3; tmax=8). Fishing Vulnerability (Ref. 59153 ):  Moderate vulnerability (38 of 100). Price category (Ref. 80766 ):   Unknown .

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Updated: 2024-03-28 11:12:26 gmt
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