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Hypophthalmichthys nobilis in Egypt
Bighead carp

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Hypophthalmichthys nobilis   (Richardson, 1845)
Family:	Cyprinidae (Minnows or carps)			picture (Arnob_u4.jpg) by CAFS
Order:	Cypriniformes  (carps)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Bighead carp
Max. size:	112 cm TL (male/unsexed; Ref. 40637); max. published weight: 21.3 kg (Ref. 40637)
Environment:	benthopelagic; potamodromous ; depth range - 5 m
Climate:	temperate; 4 - 26°C; 64°N - 18°S
Global Importance:	fisheries: highly commercial; aquaculture: commercial; aquarium: public aquariums
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-5; tmax=20; K=0.15-0.27; Fec=50,000-1 million)
Distribution:	Asia: China. Introduced to numerous countries and has achieved a near global distribution. However, its breeding requirements are very specialized and stocks are maintained by artificial reproduction or continuous importation. Several countries report adverse ecological impact after introduction.
Diagnosis:	Dorsal spines (total): 3-3; Dorsal soft rays (total): 7-7; Anal spines: 1-3; Anal soft rays: 12-14. Body with numerous scattered small black blotches. Keels extend from pelvic base to anus. Barbels absent. Posterior margin of last simple dorsal ray not serrated. Branched anal rays 13-14.5 (Ref. 13274).
Biology:	Occurs in rivers and lakes. Feeds mainly on zooplankton. Bottom feeding fish (Ref. 6459). Marketed fresh and frozen
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	potential pest
Coordinator:
Main Ref:	Kottelat, M.. 2001. (Ref. 44416)
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Egypt country information
Common names:	[ No common name ]		Ref:
Status:	not established		Ref:  Lever, C., 1996
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Has established in aquaculture through assisted/artificial reproduction but not in the wild (Ref. 1739).
Country Information:	www.cia.gov/cia/publications/factbook/geos/eg.html
Occurrences:	Occurrences    Point map
Main Ref:	Welcomme, R.L., 1988
Update

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 | Bio-Quiz | E-book | Field guide | 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 | Tree of Life | Zoological Record FishWatcher | Other web sites |
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Casal, Christine Marie V.	Entered:  Casal, Christine Marie V.

	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