Ameiurus melas (black bullhead)
- Summary of Invasiveness
- Taxonomic Tree
- Distribution Table
- History of Introduction and Spread
- Risk of Introduction
- Habitat List
- Biology and Ecology
- Water Tolerances
- Natural enemies
- Notes on Natural Enemies
- Means of Movement and Dispersal
- Pathway Causes
- Pathway Vectors
- Impact Summary
- Economic Impact
- Environmental Impact
- Threatened Species
- Social Impact
- Risk and Impact Factors
- Uses List
- Similarities to Other Species/Conditions
- Prevention and Control
- Links to Websites
- Distribution Maps
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PicturesTop of page
IdentityTop of page
Preferred Scientific Name
- Ameiurus melas (Rafinesque, 1820)
Preferred Common Name
- black bullhead
Other Scientific Names
- Ameirus melas Rafinesque, 1820
- Ameiurus melas melas (Rafinesque, 1820)
- Ameiurus vulgaris Thompson, 1842
- Ictalurus melas Rafinesque, 1820
- Ictalurus melas melas Rafinesque, 1820
- Silurus melas Rafinesque, 1820
International Common Names
- English: black catfish; bullhead; catfish; catfish, black; homedpout; hornedpout; poisson-chat; yellow belly bullhead
- Spanish: bagre; bagre torito negro
- French: barbotte noire; poisson-chat
Local Common Names
- Albania: peshku mace e zezë
- Austria: schwarzer zwergwels
- Canada/Quebec: barbotte noire
- Denmark: sort dværgmall
- Finland: mustapiikkimonni
- Germany: schwarzer katzenwels; Schwarzer zwergels; Schwarzer Zwergwels
- Italy: pesce gatto
- Netherlands: zwarte Amerikaanse dwergmeerval; zwarte Amerikaanse dwergmeerval
- Poland: sumik czarny
- Portugal: peixe-gato
- Sweden: svart dvärgmal
Summary of InvasivenessTop of page
A. melas, commonly known as the black bullhead, is a species of bullhead catfish native to Canada, USA and Mexico. It has been introduced into numerous countries in Europe, South America and many states in the USA and is now established in at least 15 countries (Nijssen and De Groot, 1974; Wheeler, 1978; Copp et al., 2005; Cvijanovic et al., 2005; Musil et al., 2008; Nowak et al., 2010). This species is normally considered a detritivore but recent studies suggest its diet could include fish and fish eggs (Boet, 1980). Therefore, this species might be reducing the amount of available prey for native predators. Black bullhead may also have an indirect effect by increasing turbidity (Braig and Johnson, 2003), potentially modifying the feeding efficiency of visual predators (Reid et al., 1999; Utne-Palm, 2002). Black bullheads tend to be found in high local abundance, their behaviour could therefore interfere with accompanying species and negatively affect the behaviour of native predators and prey. A. melas is listed as a species of Least Concern on the IUCN Red List of Threatened Species (IUCN, 2015).
Taxonomic TreeTop of page
- Domain: Eukaryota
- Kingdom: Metazoa
- Phylum: Chordata
- Subphylum: Vertebrata
- Class: Actinopterygii
- Order: Siluriformes
- Family: Ictaluridae
- Genus: Ameiurus
- Species: Ameiurus melas
DescriptionTop of page
It is difficult to distinguish between sexes although the female is noticeably fuller in the breeding season. Head is large and rounded above, with small eyes. Barbels at corners of mouth are about twice as long as those near nostrils. Chin barbels are dark or black. Mouth is terminal and jaws are equal in length, or with the lower one longer; distance between isthmus and lower jaw notches almost equal to distance from lower jaw notch to tip of lower jaw. Area between head and origin of dorsal compressible, no bony ridge.
Dorsal Fins: Adipose fin short, fleshy, free at posterior end, obviously well separated from the caudal fin dorsal inter-ray membranes usually noticeably darkened.
Caudal fin: round, square, or slightly indented, never deeply forked.
Anal fin does not reach anterior rays of caudal fin; anal fin rays 17 to 24.
Tail squarish, not deeply forked. Barbs on trailing edge of pectoral spines weak or absent, especially near tip; if present near base, barbs usually catch fingernail only when moved toward base.
Coloration: variable, dorsal surface greenish, yellowish, brownish or slate grey-olive, sides lighter, ventral body bright yellow, yellow or milk-white. Fins normally conspicuously darker than the adjacent parts of the body. Anal base pale, distal two-thirds between the rays black; in young fish less than 10 cm in length, the entire fins may be black.
A. melas usually weigh less than 400 g, occasionally approaching 1 kg (2.2 pounds). It is common for them to reach lengths of 254-318 mm (10-12 inches) although specimens as big as 457 mm (18 inches) have been reported. A. melas can live for 4-5 years, although not many live beyond 3 years.
DistributionTop of page
Native to Canada, USA and Mexico, black bullhead have been introduced to Europe, South America and many states in the USA and the species is now established in at least 15 countries (Nijssen and De Groot, 1974; Wheeler, 1978; Copp et al., 2005; Cvijanovic et al., 2005; Musil et al., 2008; Nowak et al., 2010).
Distribution TableTop of page
The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.
|Continent/Country/Region||Distribution||Last Reported||Origin||First Reported||Invasive||Reference||Notes|
|Canada||Present||Native||Froese and Pauly, 2004|
|-British Columbia||Present||Introduced||Scott and Crossman , 1973; Froese and Pauly, 2004|
|-Manitoba||Present||Native||Robins and et al. , 1980|
|-Saskatchewan||Present||Native||Robins and et al. , 1980|
|Mexico||Present||Native||Page and Burr , 1991; Froese and Pauly, 2004|
|USA||Present||Native||Froese and Pauly, 2004|
|-Alabama||Present||Native||Darr , 2004|
|-Arizona||Present||Introduced||Lee and et al. , 1980|
|-Arkansas||Present||Native||Arkansas Game and Fish Commission, 2003|
|-California||Present||Introduced||Curtis , 1949|
|-Colorado||Present||Native||Everhart and Seaman , 1971|
|-Connecticut||Present||Introduced||Behnke and Wetzel , 1960|
|-Georgia||Present||Native||Dahlberg and Scott , 1971|
|-Idaho||Present||Introduced||Idaho Fish and Game, 1990|
|-Illinois||Present||Native||Smith , 1979|
|-Indiana||Present||Native||Indiana Department of Conservation, 1964|
|-Iowa||Present||Native||Iowa Department of Natural Resources, 2004|
|-Kansas||Present||Native||Cross , 1967|
|-Kentucky||Present||Native||Kinman , 1993|
|-Louisiana||Present||Native||Hardy and LeGrande , 1979|
|-Maryland||Present||Introduced||Lee and et al. , 1980|
|-Massachusetts||Present||Introduced||Hartel , 1992|
|-Michigan||Present||Native||Bailey and Smith , 1958|
|-Minnesota||Present||Native||Siems and et al. , 2001|
|-Mississippi||Present||Native||Hole RB Jr, 2003|
|-Missouri||Present||Native||Pflieger , 1975|
|-Montana||Present||Native||Brown , 1971|
|-Nebraska||Present||Native||Jones , 1963|
|-Nevada||Present||Introduced||Deacon and Williams , 1984|
|-New Jersey||Present||Introduced||New Jersey Department of Environmental Protection, 2000|
|-New Mexico||Present||Native||Koster , 1957|
|-New York||Present||Smith , 1985|
|-North Carolina||Present||Introduced||Menhinick , 1991|
|-North Dakota||Present||Native||North Dakota Game and Fish Department, 1994|
|-Ohio||Present||Native||Trautman , 1981|
|-Tennessee||Present||Native||Etnier and Starnes , 1993|
|-Texas||Present||Native||Hubbs and et al. , 1991|
|-Utah||Present||Introduced||Utah Department of Natural Resources, UTDNR|
|-Virginia||Present||Native||Lee and et al. , 1980|
|-Washington||Present||Introduced||Wydoski and Whitney , 1979|
|-West Virginia||Present||Introduced||Burkhead and et al. , 1980|
|-Wisconsin||Present||Becker , 1983|
|-Wyoming||Present||Baxter and Simon , 1970|
|Chile||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Albania||Present||Introduced||FAO, 1997; Froese and Pauly, 2004|
|Belgium||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|France||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Germany||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Hungary||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Ireland||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Italy||Present||Introduced||Gandolfi and et al. , 1991; Froese and Pauly, 2004|
|Netherlands||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Norway||Present||Introduced||Elvira , 2001|
|Poland||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Portugal||Present||Introduced||Convention on the Conservation of European Wildlif, 2002|
|Russian Federation||Present||Introduced||Welcomme, 1988|
|Spain||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
|Switzerland||Present||Introduced||FAO, 1997; Froese and Pauly, 2004|
|UK||Present||Introduced||Wheeler , 1992; Froese and Pauly, 2004|
|Yugoslavia (Serbia and Montenegro)||Present||Introduced||Welcomme, 1988; Froese and Pauly, 2004|
History of Introduction and SpreadTop of page
Introductions of black bullhead have historically been for either aquaculture, recreational fishing or as an ornamental species. This species was first recorded in the UK in 1885, although no location details are held. Black bullhead was introduced into France from North America in 1871 and is now widespread in Europe (Wheeler, 1978). In Poland, it is suggested that the black bullhead was co-introduced into Polish waters with the brown bullhead (Ameiurus nebulosus), at the end of the nineteenth century. In European waters, the dispersal mechanism is not clear but spread could be as a result of accidental and illegal introductions or natural dispersion between countries via watercourses (Nowak et al., 2010; Copp et al., unpublished).
IntroductionsTop of page
|Introduced to||Introduced from||Year||Reason||Introduced by||Established in wild through||References||Notes|
|Natural reproduction||Continuous restocking|
|Belgium||North America||1882, 1892||Aquaculture (pathway cause)||Private sector||Yes||No||Welcomme (1988)|
|British Columbia||Washington||Interconnected waterways (pathway cause)||Unknown||Yes||No||Scott and Crossman (1973); Scott and Crossman (1973)|
|Chile||USA||1907||Fisheries (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|France||USA||1871||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Germany||USA||1885||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Hungary||Italy||1902||Aquaculture (pathway cause)||Government||Yes||No||FAO (1997); Welcomme (1988)|
|Hungary||1902||Aquaculture (pathway cause)||Government||Yes||No||FAO (1997); Welcomme (1988)|
|Ireland||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Italy||North America||1900s||Aquaculture (pathway cause)||Unknown||Yes||No||Bianco and Ketmaier (2001); Bianco and Ketmaier (2001)|
|Netherlands||USA||1900||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Netherlands||France||1900||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Netherlands||Germany||1900||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Norway||USA||1890||Aquaculture (pathway cause)||Unknown||Yes||No||Elvira (2001)|
|Portugal||1990s||Fisheries (pathway cause)||Unknown||No||No||Convention on the Conservation of European Wildlif (2002)|
|Russian Federation||Unknown||Yes||No||Welcomme (1988)|
|Spain||1980s||Fisheries (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Switzerland||Aquaculture (pathway cause)||Unknown||Yes||No||FAO (1997)|
|UK||Italy||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
|Yugoslavia (Serbia and Montenegro)||USA||1905||Aquaculture (pathway cause)||Unknown||Yes||No||Welcomme (1988)|
Risk of IntroductionTop of page
In European waters, the dispersal mechanism is not clear and could be as a result of accidental and illegal introductions or natural dispersion between countries via watercourses (Copp et al., unpublished); however, in Poland it is presumed that their spread is a result of unregistered, illegal introduction by recreational fishers (Nowak et al., 2010). It has also been suggested that A. melas has been introduced as both an ornamental species and possibly as escapees from aquaculture. Legislature in France has identified this species as a ‘species liable to cause biological disequilibrium’ (Cucherousset et al., 2007) and as such strict rules prohibit its introduction.
Habitat ListTop of page
|Irrigation channels||Present, no further details|
|Lakes||Principal habitat||Harmful (pest or invasive)|
|Reservoirs||Principal habitat||Harmful (pest or invasive)|
|Rivers / streams||Secondary/tolerated habitat||Harmful (pest or invasive)|
|Ponds||Principal habitat||Harmful (pest or invasive)|
Biology and EcologyTop of page
The modal number of chromosomes in the black bullhead is 60 (Clark and Mathis, 1982).
In its native range in North America, the spawning season for the black bullhead starts in late April and goes through to early June, when water temperatures are about 20-21°C (Scott and Crossman, 1973). The females scoop out a small hole or depression in the lake floor usually in water about 0.6-1.2 m (2-4 ft.) deep in soft substrate, like silt or mud (Wallace, 1967). Females produce between 2000 and 3800 eggs (Etnier and Starnes, 1993). Spawning occurs five times over a one-hour period. The males fertilize the eggs and then watch over the nest for up to ten days. When the eggs hatch, both parents will watch over the fry (Scott and Crossman, 1973).
A. melas live for 4-5 years, although not many live beyond 3 years.The maximum reported age for black bullhead is 10 years (Froese and Pauly, 2015).
ClimateTop of page
|C - Temperate/Mesothermal climate||Preferred||Average temp. of coldest month > 0°C and < 18°C, mean warmest month > 10°C|
|D - Continental/Microthermal climate||Preferred||Continental/Microthermal climate (Average temp. of coldest month < 0°C, mean warmest month > 10°C)|
Water TolerancesTop of page
|Parameter||Minimum Value||Maximum Value||Typical Value||Status||Life Stage||Notes|
|Dissolved oxygen (mg/l)||>7.0||Optimum||Adult||S = summer; W = winter|
|Dissolved oxygen (mg/l)||(W) <0.2||(W) 0.3||(S) <3.0||Harmful||Adult||S = summer; W = winter|
|Salinity (part per thousand)||>8000||Harmful||Egg|
|Spawning temperature (ºC temperature)||>20||Optimum||Broodstock|
|Suspended solids (mg/l)||100||600||Optimum||Adult||(total dissolved solids)|
|Water pH (pH)||<3.4||Harmful||Adult|
|Water pH (pH)||6.5||8.0||Optimum||Adult|
|Water temperature (ºC temperature)||>27||Harmful||Egg|
|Water temperature (ºC temperature)||20||22||Optimum||Egg|
|Water temperature (ºC temperature)||20||22||Optimum||Larval|
|Water temperature (ºC temperature)||23||24||Optimum||Adult|
|Water temperature (ºC temperature)||23||24||Optimum||Fry|
|Water temperature (ºC temperature)||35||39||Harmful||Adult|
|Water temperature (ºC temperature)||35||39||Harmful||Broodstock|
|Water temperature (ºC temperature)||35||39||Harmful||Larval|
|Water temperature (ºC temperature)||35||39||Harmful||Fry|
Natural enemiesTop of page
Notes on Natural EnemiesTop of page
A. melas have large sharp spines on both their dorsal and pectoral fins; when attacked they straighten them making them difficult to swallow and as such very few predators are able to consume them (Becker, 1983). This species also produces a mild poison that runs down the spines and into the wound. These spines combined with the species' nocturnal feeding regime make black bullheads an uncommon prey item for other fish species. Smallmouth bass (Micropterus dolomieu), largemouth bass (Micropterus salmoides), herons as well as some turtle species occasionally consume the young and small adults (Becker, 1983), with their main predator being humans.
Means of Movement and DispersalTop of page
In European waters, the dispersal mechanism is not clear and could be as a result of accidental and illegal introductions or natural dispersion between countries via watercourses (Copp et al., unpublished).
Pathway CausesTop of page
|Botanical gardens and zoos||Yes||Yes|
|Escape from confinement or garden escape||Yes|
|Flooding and other natural disasters||Yes||Yes|
|Hunting, angling, sport or racing||Yes|
|Live food or feed trade||Yes||Yes|
Pathway VectorsTop of page
Impact SummaryTop of page
|Fisheries / aquaculture||Positive|
Economic ImpactTop of page
There is potential that this species can have a negative economic impact on communities as this fish can be a 'nuisance' species taking lines/bait intended for other species. Anglers not targeting this species might therefore move on to black bullhead free waters taking not only the money from recreational fishing but tourism (food, accommodation and transportation) all of which may provide economic opportunities locally.
Environmental ImpactTop of page
Impact on Habitats
Of the countries where it has been introduced in Europe there may be impacts on habitat (direct or indirect), potentially through increased turbidity related to reduced macrophyte growth and reduced stability of substrates.
Impact on Biodiversity
Impacts such as competition (for food and/or space) with native species, and predation of native species have been reported. This species is normally considered a detritivore but recent studies suggest its diet could include fish and fish eggs (Boet, 1980). Therefore, this species might be reducing the amount of available prey for native predators. Due to the generalist and opportunistic feeding habits of this species, Leunda et al. (2008) analyzed data from Spain and Portugal indicating impacts on a wide range of potential prey species as well as impacts through competition. In this study, black bullheads consumed plant material, terrestrial prey and co-occurring fish species (native or exotic), taking the most abundant and available prey. According to Marsh and Douglas (1997), introduced A. melas feed on endangered humpback chub, Gila cypha, in the Little Colorado River (USA) and may exert a negative impact on the population there. Minckley (1973) reported that A. melas is considered a pest in Arizona as it forms large populations which compete with more desirable fishes for space and food. They are also voracious predators of newly hatched gamefish (Whitmore, 1997). According to Rosen et al. (1995), introduced predatory fishes, including A. melas, are probably partially responsible for the decline of the Chiricahua leopard frog (Rana chiricahuensis) in south-eastern Arizona.
Black bullhead may also have an indirect effect by increasing turbidity (Braig and Johnson, 2003), potentially modifying the feeding efficiency of visual predators (Reid et al., 1999; Utne-Palm, 2002). Black bullheads tend to be found in high local abundance, their behaviour could therefore interfere with accompanying species and negatively affect the behavior of native predators and prey.
Threatened SpeciesTop of page
|Threatened Species||Conservation Status||Where Threatened||Mechanism||References||Notes|
|Gila cypha||EN (IUCN red list: Endangered) EN (IUCN red list: Endangered)||Arizona; New Mexico||Predation||Marsh and Douglas , 1997|
|Hyla wrightorum (Arizona treefrog)||LC (IUCN red list: Least concern) LC (IUCN red list: Least concern)||Arizona||Predation||US Fish and Wildlife Service, 2013|
|Pacifastacus fortis (Shasta crayfish)||CR (IUCN red list: Critically endangered) CR (IUCN red list: Critically endangered); USA ESA listing as endangered species USA ESA listing as endangered species||California||Predation||US Fish and Wildlife Service, 2009|
|Ptychocheilus lucius (Colorado pikeminnow)||No Details||Colorado||Predation||US Fish and Wildlife Service, 2011|
|Rana chiricahuensis (Chiricahua leopard frog)||VU (IUCN red list: Vulnerable) VU (IUCN red list: Vulnerable)||Arizona||Rosen et al., 1995|
Social ImpactTop of page
There is potential for the black bullhead to cause a negative social impact as it can be a 'nuisance' species taking lines/bait intended for other species, because of this anglers not targeting this species might move on to black bullhead free waters.
Risk and Impact FactorsTop of page Invasiveness
- Invasive in its native range
- Proved invasive outside its native range
- Has a broad native range
- Abundant in its native range
- Highly adaptable to different environments
- Is a habitat generalist
- Tolerant of shade
- Capable of securing and ingesting a wide range of food
- Has high reproductive potential
- Damaged ecosystem services
- Ecosystem change/ habitat alteration
- Modification of natural benthic communities
- Modification of nutrient regime
- Negatively impacts aquaculture/fisheries
- Reduced native biodiversity
- Threat to/ loss of endangered species
- Threat to/ loss of native species
- Highly likely to be transported internationally accidentally
- Highly likely to be transported internationally deliberately
- Highly likely to be transported internationally illegally
- Difficult/costly to control
Uses ListTop of page
Human food and beverage
- Cured meat
- Fresh meat
- Frozen meat
- Live product for human consumption
Similarities to Other Species/ConditionsTop of page
A close congener to the black bullhead is the brown bullhead Ameiurus nebulosus (Lesueur, 1819). One of the main distinguishing features separating the two species is that the black bullhead is with rough or irregular small barbs on the trailing edge of the pectoral spines weak; whereas for the brown bullhead, the pectoral spike edge is with regular saw-like barbs. Other distinguishing features include the number of anal ray fins; the black bullhead has 15-21 anal ray fins, the brown bullhead 21-24. The colour pattern also varies with black bullhead being mainly solid and dark, with a white or yellow belly; faint pale yellow vertical bar at base of tail while the brown bullhead is usually mottled, but may be solid, generally yellow brown or grayish, belly usually cream or tan; no bar at base of tail.
Prevention and ControlTop of page
ReferencesTop of page
Amin OM, 1975. Acanthocephalus parksidei sp.n. (Acanthocephala: Echinorhynchidae) from Wisconsin fishes. Journal of Parasitology, 61(2):301-306.
Arkansas Game and Fish Commission, 2003. Arkansas Fishing Guidebook. Online at www.agfc.state.ar.us/pdf/2003fishregs.pdf. Accessed 7 September 2004.
Arkhipchuk VV, 1999. Chromosome database. Database of Dr. Victor Arkhipchuk. Ukraine.
Bailey RM, Smith GR, 1958. [revised 2002] Names Of Michigan Fishes. Fisheries Division, Michigan Department of Natural Resources. Online at www.michigandnr.com/PUBLICATIONS/PDFS/fishing/names_of_MIfishes.pdf. Accessed 7 September 2004.
Baxter GT, Simon JR, 1970. Wyoming Fishes. Bulletin 4. Cheyenne, Wyoming: Wyoming Game and Fish Department, 168 pp.
Becker GC, 1983. Fishes of Wisconsin. Madison, Wisconsin: University of Wisconsin Press.
Behnke RJ, Wetzel RM, 1960. A preliminary list of the fishes found in the fresh waters of Connecticut. Copeia, 1960(1):141-143.
Bianco PG, Ketmaier V, 2001. Anthropogenic changes in the freshwater fish fauna of Italy, with reference to the central region and Barbus graellsii, a newly established alien species of Iberian origin. Journal of Fish Biology, 59(Supplement A):190-208.
Boet P, 1980. The catfish feed ( Ictalurus melas Raf. ) In Lake Creteil. (L'alimentation du poisson-chat (Ictalurus melas Raf.) dans le lac de Creteil.) Annales de Limnologie, 16(3):255-270.
Braig EC, Johnson DL, 2003. Impact of black bullhead (Ameiurus melas) on turbidity in a diked wetland. Hydrobiologia, 490:11-21.
Breder CM, Rosen DE, 1966. Modes of reproduction in fishes. TFH Publications, Neptune City, New Jersey, 941 pp.
Brown CJD, 1971. Fishes of Montana. Bozeman, Montana: Montana State University.
Burkhead NM, Jenkins RE, Maurakis EG, 1980. New records, distribution and diagnostic characters of Virginia ictalurid catfishes with an adnexed adipose fin. Brimleyana, 4:75-93.
Clark B, Mathis P, 1982. Karyotypes of middle Tennessee bullheads: Ictalurus melas and Ictalurus natalis (Cypriniformes, Ictaluridae). Copeia, 2:457-460.
Convention on the Conservation of European Wildlife and Natural Habitats, 2002. Report of the Group of Experts on Invasive Alien Species, Horta (Azores, Portugal), 12 October 2002, 61 pp.
Cooper EL, 1983. Fishes of Pennsylvania and the northeastern United States. Pennsylvania: The Pennsylvania State University Press, University Park, 183 pp.
Copp GH, Bianco PG, Bogutskaya N, Ero?s T, Falka I, Ferreira MT, Fox MG, Freyhof J, Gozlan RE, Grabowska J, Kovàc
Copp GH, Tarkan AS, Godard MJ, Novomeska A, Miranda R, Valente E, Cucherousset J, Pedicillo G, Blackwell B, Unpublished. A review of growth and life-history traits of black bullhead Ameiurus melas in its native north american and introduced European ranges.
Cross FB, 1967. Handbook of Fishes of Kansas. Topeka, Kansas: State Biological Survey and University of Kansas Museum of Natural History, Miscellaneous Publication 45.
Cucherousset J, Paillisson JM, Carpentier A, Chapman LJ, 2007. Fish emigration from temporary wetlands during drought: the role of physiological tolerance. Fundamental and Applied Limnology-Archiv fur Hydrobiologie, 168:169-178.
Curtis B, 1949. The warmwater game fishes of California. California Fish and Game, 35(4):255-273.
Cvijanovic G, Lenhardt M, Hegediš A, 2005. The first record of black bullhead Ameiurus melas (Pisces, Ictaluridae) in Serbian waters. Archives of Biological Science, Belgrade, 57:21-22.
Dahlberg MD, Scott DC, 1971. Introductions of freshwater fishes in Georgia. Bulletin of the Georgia Academy of Science, 29:245-252.
Darr D, 2004. Fishing, Alabama Division of Wildlife and Freshwater Fisheries, Alabama Department of Conservation and Natural Resources. Online at www.conservation.alabama.gov/agfd/fish/fishing.pdf. Accessed 9 September 2004.
Deacon JE, Williams JE, 1984. Annotated list of the fishes of Nevada. Proceedings of the Biological Society of Washington, 97(1):103-118.
Dronen NOJr, Underwood HT, 1980. Pseudomagnivitellinum ictalurum gen. et sp.n. (Digenea: Macroderoididae) from the black bullhead of south-central Texas. Proceedings of the Helminthological Society of Washington, 47(1):52-54.
Elvira B, 2001. Identification of non-native freshwater fishes established in Europe and assessment of their potential threats to the biological diversity, Convention On The Conservation Of European Wildlife And Natural Habitats Standing Committee 21st Meeting Strasbourg, 26-30 November 2001, 20 pp.
Etnier DA, Starnes WC, 1993. The fishes of Tennessee. Knoxville, TN: University of Tennessee Press.
Everhart WH, Seaman WR, 1971. Fishes of Colorado. Colorado Game, Fish and Parks Division, Denver, Colorado, 75 pp.
FAO, 1997. FAO Database on Introduced Aquatic Species. FAO, Rome, Italy: Food and Agricultural Organization of the United Nations.
FishBase, 2004. Entry for Ameiurus melas. Main ref. Page LM, Burr BM, 1991. A field guide to freshwater fishes of North America north of Mexico. Boston, USA: Houghton Mifflin Company, 432 pp. Online at www.fishbase.org. Accessed 13 October 2004.
Foltz JW, Rohde FC, 2003. List of Freshwater Fishes of South Carolina. Online at http://people.clemson.edu/%7Ejwfoltz/scfish/fishlist.htm. Accessed 9 September 2004.
Froese R, Pauly D, 2004. FishBase DVD. Penang, Malaysia: Worldfish Center. Online at www.fishbase.org.
Froese R, Pauly D, 2015. FishBase. http://www.fishbase.org
Gandolfi G, Zerunian S, Torricelli P, Marconato A, eds, 1991. I pesci delle acque interne italiane. Ministero dell’Ambiente e Unione Zoologica Italiana. Instituto Poligrafico e Zecca dello Stato, Roma. 616 pp.
Hardy LM, LeGrande WH, 1979. Checklist of the fishes of Caddo and Bossier Parishes, Louisiana. Bulletin of the Museum of Life Sciences, Louisiana State University in Shreveport, 3:1-12.
Hartel KE, 1992. Non-native fishes known from Massachusetts freshwaters. Occasional Reports of the Museum of Comparative Zoology, Harvard University, Fish Department, Cambridge, MA, 1-9 pp.
Hole RB Jr, 2003. Mississippi Freshwater Fishes. Online at www.interaktv.com/MS/Fishes.html#Top. Accessed 9 September 2004.
Hubbs C, Edwards RJ, Garrett GP, 1991. An annotated checklist of freshwater fishes of Texas, with key to identification of species. Texas Journal of Science, Supplement, 43(4):1-56.
Idaho Fish and Game, 1990. Fisheries Management Plan 1991-1995. Appendix I - A list of Idaho fishes and their distribution by drainage. Idaho Fish and Game.
Indiana Department of Conservation, 1964. Division of Fish and Game, Fishes of Indiana.
Iowa Department of Natural Resources, 2004. Fish Species Found in Iowa, Online at www.state.ia.us/dnr/organiza/fwb/fish/iafish/iowalist.htm. Accessed 9 September 2004.
Jones DJ, 1963. A history of Nebraska’s fisheries resources. Dingell-Hohnson Federal Aid in Fish Restoration Project F-4-R Publication. Nebraska Game, Forestation and Parks Commission.
Kinman BT, 1993. Kentucky fish, The Kentucky Department of fish and Wildlife Resources. Online at www.kdfwr.state.ky.us/pdf/kyfishid.pdf. Accessed 9 September 2004.
Koster WJ, 1957. Guide to the fishes of New Mexico. Albuquerque, New Mexico: University of New Mexico Press.
Leunda PM, Oscoz J, Elvira B, Agorreta A, Perea S, Miranda R, 2008. Feeding habits of the exotic black bullhead Ameiurus melas (Rafinesque) in the Iberian Peninsula: first evidence of direct predation on native fish species. Journal of Fish Biology, 73(1):96-114. http://www.blackwell-synergy.com/loi/jfb
Marsh PC, Douglas ME, 1997. Predation by introduced fishes on endangered humpback chub and other native species in the Little Colorado River, Arizona. Transactions of the American Fisheries Society, 126:343-346.
Menhinick EF, 1991. The freshwater fishes of North Carolina. North Carolina Wildlife Resources Commission, 227 pp.
Miller RJ, Robinson HW, 1973. The Fishes of Oklahoma. Stillwater, Oklahoma: Oklahoma State University Press, 246 pp.
Minckley WL, 1973. Fishes of Arizona. Arizona Fish and Game Department. Phoenix, Arizona, USA: Sims Printing Company, Inc.
Musil J, Drozd B, Blaha M, Gallardo JM, Randak T, 2008. First records of the black bullhead, Ameiurus melas in the Czech Republic freshwaters. Cybium, 32:352-354.
New Jersey Department of Environmental Protection, 2000. IBI Summary Report, NJ Department of Environmental Protection Division of Watershed Management. Online at www.state.nj.us/dep/wmm/bfbm/download/ibi2000.pdf. Accessed 9 September 2004.
North Dakota Game and Fish Department, 1994. Fishes of the Dakotas. North Dakota Game and Fish Department, Bismarck, ND. Jamestown, ND: Northern Prairie Wildlife Research Center Home Page. http://www.npwrc.usgs.gov/resource/othrdata/dakfish/dakfish.htm (Version 16JUL97). Accessed 9 September 2004.
Page LM, Burr BM, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston, 432 pp.
Pflieger WL, 1975. The Fishes of Missouri. Missouri Department of Conservation, 343 pp.
Rafinesque CS, 1820. Description of the Silures or catfishes of the River Ohio. Q. J. Sci. Lit. Arts (R. Inst. Gr. Brit.), 48-52.
Reid SM, Fox MG, Whillans TH, 1999. Influence of turbidity on piscivory in largemouth bass (Micropterus salmoides). Canadian Journal of Fisheries and Aquatic Sciences, 56:1362-1369.
Robins CR, Bailey RM, Bond CE, Brooker JR, Lachner EA, Lea RN, Scott WB, 1980. A list of common and scientific names of fishes from the United States and Canada. A list of common and scientific names of fishes from the United States and Canada., Ed. 4:174pp.
Rosen PC, Schwalbe CR, Parizek DA Jr, Holm PA, Lowe CH, 1995. Introduced aquatic vertebrates in the Chiricahua region: effects on declining native ranid frogs. In: Biodiversity and Management of the Madrean Archipelago: the sky island of the southwestern United States and northwestern Mexico. USDA Forest Service General Technical Report RM-GTR-264, 251-261.
Scholz T, Cappellaro H, 1993. The first record of Corallobothrium parafimbriatum Befus et Freeman, 1973 (Cestoda: Proteocephalidae), a parasite of North American catfishes (Ictalurus spp.), in Europe. Folia Parasitologica, 40(2):105-108.
Schultz K, 2004. Fish of the week: black bullhead. Online at www.fieldandstream.com/fieldstream/fishing/article/0,13199,338718,00.html. Accessed 4 February 2004.
Scott WB, Crossman EJ, 1973. Freshwater fishes of Canada. Bull. Fish. Res. Board Can. 184:1-966.
Siems DP, Underhill JC, Schmidt KP, Hatch JT, 2001. Checklist of Minnesota Fishes Online at www.bemidjistate.edu/dsiems/minnfish.pdf. Accessed 9 September 2004.
Siwicki A, Pozet F, Morand M, Terech-Majewska E, Bernard D, 2001. Pathogenesis of iridovirus: in vitro influence on macrophage activity and cytokine-like protein production in fish. Acta Veterinaria Brno, 70(4):451-456.
Smith CL, 1985. Inland Fishes of New York. Albany, New York: New York Department of Environmental Conservation.
Smith PW, 1979. The Fishes of Illinois. Ill. Nat. Hist. Surv. Urbana: Univ. Illinois Press, 314 pp.
Thompson Z, 1842. History of Vermont, natural, civil, and statistical. Burlington, Vermont.
Trautman MB, 1981. The Fishes of Ohio. Ohio State Univ. Press, 782 pp.
US Fish and Wildlife Service, 2013. In: U.S. Fish and Wildlife Service species assessment and listing priority assignment form: Hyla wrightorum. US Fish and Wildlife Service, 34 pp.. https://ecos.fws.gov/docs/candidate/assessments/2014/r2/D03S_V02.pdf
Utah Department of Natural Resources (UTDNR), 1990. Discover Utah Wildlife, Species Checklist. Division of Wildlife Resources, UT Dept of Natural Resources. Salt Lake City, UT 84116.
Utne-Palm AC, 2002. Visual feeding of fish in a turbid environment: physical and behavioural aspects. Marine and Freshwater Behaviour and Physiology, 35:111-128.
Wallace CR, 1967. Observations on the reproductive behavior of the black bullhead (Ictalurus melas). Copeia 1967:852-853.
Wheeler A, 1992. A list of the common and scientific names of fishes of the British Isles. J. Fish Biol., 41(1):1-37.
Wheeler AC, 1979. Ictalurus melas (Rafinesque, 1820) and I. nebulosus (Lesueur, 1819): the North American catfishes in Europe. Journal of Fish Biology, 12:435-439.
Whitmore S, 1997. Aquatic nuisance species in Region 6 of the Fish and Wildlife Service. US Fish and Wildlife Service, Great Plains Fish and Wildlife Management Assistance Office, Pierre, SD.
Wydoski RS, Whitney RR, 1979. Inland fishes of Washington. Seattle, Washington: University of Washington Press.
ContributorsTop of page
25/05/15 Updated by:
Michael Godard, Consultant, Cambridge, Ontario, Canada
26/04/04 Original text by:
Uma Sabapathy Allen, Human Sciences, CAB International, Wallingford, Oxon, OX10 8DE, UK
Distribution MapsTop of page
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