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Astronotus ocellatus in Canada
Oscar

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Astronotus ocellatus   (Agassiz, 1831)
Family:	Cichlidae (Cichlids) , subfamily: Astronotinae			picture (Asoce_u7.jpg) by Landines, M.
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Oscar
Max. size:	45.7 cm TL (male/unsexed; Ref. 40637); max. published weight: 1,580 g (Ref. 40637)
Environment:	benthopelagic; pH range: 6 - 8; dH range: 5 - 19
Climate:	tropical; 22 - 25°C; 4°N - 15°S
Global Importance:	fisheries: commercial; aquarium: highly commercial
Resilience:	High, minimum population doubling time less than 15 months (Assuming tm<=1; Fec=300-2000)
Distribution:	South America: Amazon River basin in Peru, Colombia and Brazil; French Guiana. Reported from Argentina (Ref. 9086).
Diagnosis:	Dorsal spines (total): 12-14; Dorsal soft rays (total): 19-21; Anal spines: 3-3; Anal soft rays: 15-17. Large mouth with thick lips; 7 preopercular pores; first gill arch without lobe; gill rakers short and thick with many denticles; dorsal and anal fins bases densely scaled; many branched rays; body color dark with bright orange opercle margin and ventral parts of the lateral sides of the body; often a black rounded blotch with orange margin at caudal fin base (Ref. 35237).
Biology:	Preferably inhabits quiet shallow waters in mud-bottomed and sand-bottomed canals and ponds (Ref. 5723). Feeds on small fish, crayfish, worms and insect larvae. Quite popular with aquarists but not for aquaculturists because of its slow growth (Ref. 35237). Maximum length 40 cm TL (Ref. 5723). A highly esteemed food fish in South America (Ref. 44091)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:	Kullander, Sven O.
Main Ref:	Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
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Canada country information
Common names:	Astronotus, Oscar		Ref:  Coad, B.W., 1995
Status:	not established		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Status provisional; see province record for Canada.
States/Provinces:	Ontario (not established)
States/Provinces Complete?:	No
Country Information:	www.cia.gov/cia/publications/factbook/geos/ca.html
National  Fisheries  Authority:	www.ncr.dfo.ca/home_e.htm
Occurrences:	Occurrences    Point map
Main Ref:	Coker, G.A., C.B. Portt and C.K. Minns, 2001
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 ) | PubMed | Recipes | Scirus | Public aquariums | Tree of Life | Zoological Record FishWatcher | Other web sites | Fish Forum |
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Garilao, Cristina V.	Entered:  Garilao, Cristina 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