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Ictalurus punctatus in Hawaii (USA)
Channel catfish

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Ictalurus punctatus   (Rafinesque, 1818)
Family:	Ictaluridae (North American freshwater catfishes)			picture (Icpun_u1.jpg) by Lovshin, L.
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Channel catfish
Max. size:	132 cm TL (male/unsexed; Ref. 26550); max. published weight: 26.3 kg (Ref. 4699); max. reported age: 24 years
Environment:	benthopelagic; pH range: 6 - 8; dH range: 4 - 30 ; depth range - 15 m
Climate:	subtropical; 10 - 32°C; 51°N - 27°N
Global Importance:	fisheries: highly commercial; aquaculture: commercial; aquarium: commercial
Resilience:	Low, minimum population doubling time 4.5 - 14 years (K=0.06; tmax=16)
Distribution:	North America: Central drainages of the United States to southern Canada and northern Mexico. Trade restricted in Germany (Anl.3 BArtSchV).
Diagnosis:	Usually bluish olive, gray or black on the upper part of the body, becoming white below; dark spots usually scattered along the sides; older males dark in color, the head looking very wide when seen from the top; long barbels surrounding the mouth and the tail deeply forked (Ref. 44091).
Biology:	Inhabit rivers and streams and prefer clean, well oxygenated water (Ref. 9988), but also in ponds and reservoirs (Ref. 10294, 44091). Feed primarily on small fish, crustaceans (e.g. crayfish), clams and snails; also feed on aquatic insects and small mammals (Ref. 9669, 10294, 44091). Marketed fresh, smoked and frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988). Albino form common in the aquarium trade (Ref. 13371)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	potential pest , Riehl, R. and H.A. Baensch. 1996
Coordinator:
Main Ref:	Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
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Hawaii (USA) country information
Common names:	Channel catfish		Ref:  Honebrink, R., 1990
Status:	introduced		Ref:  Yamamoto, M.N. and A.W. Tagawa, 2000
Salinity:	freshwater
Aquaculture:			Ref:
Uses:	no uses
Comments:	Known from Maui and Kaua'i (Ref. 58302). Occurs primarily in reservoirs in Hawaii, like the Wahiawa Reservoir, Nu'uanu Reservoir No. 4 and Ho'omaluhia Reservoir on O'ahu; escapees can be found in streams draining these reservoirs (Ref. 44091).
Country Information:
Occurrences:	Occurrences    Point map
Main Ref:	Yamamoto, M.N., 1992
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Identification keys | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	Alien/Invasive species database | BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | National databases | PubMed | Recipes | Scirus | Public aquariums | RFE_Identification | Tree of Life | Zoological Record FishWatcher | Other web sites |
	Note: use the Back button of your browser to return to FishBase.
	Checked:  Yamamoto, Mike N.	Modified:  Ortañez, Auda Kareen	Entered:  Welcomme, Robin L.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07