Danio rerio (Hamilton, 1822)

Zebra danio

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Cypriniformes \| Cyprinidae
Synonyms	Cyprinus rerio, Barilius rerio, Brachydanio rerio, ... more
Common names	Leopard danio, Leopard danio, Leopard danio, ... more

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Main reference

Talwar, P.K. and A.G. Jhingran. 1991. (Ref. 4832)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 3.8 cm SL male/unsexed; (Ref. 41236)

Environment

Benthopelagic; freshwater; pH range: 6.0 - 8.0; dH range: 5 - 19

Climate / Range

Tropical; 18°C - 24°C (Ref. 1672); 33°N - 8°N, 66°E - 98°E

Asia: Pakistan, India, Bangladesh, Nepal and Myanmar (Ref. 41236). Reported from Bhutan (Ref. 40882). Appearance in Colombian waters presumably by escape from an aquarium fish rearing facility (Ref. 1739).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Vertebrae: 31 - 32. Five uniformly, pigmented, horizontal stripes on the side of the body, all extending onto the end of caudal fin rays. Anal fin distinctively striped. Lateral line absent. Rostral barbels extend to anterior margin of orbit; maxillary barbels end at about middle of opercle. Branched anal fin rays 10-12. Vertebrae 31-32.

An annual species. Adults inhabit streams, canals, ditches, ponds and beels (Ref. 1479). Occur in slow-moving to stagnant standing water bodies, particularly rice-fields (Ref. 4832); and lower reaches of streams (Ref. 58912). Common in rivulets at foot hills (Ref. 41236). Feed on worms and small crustaceans (Ref. 7020); also on insect larvae. Breed all year round (Ref. 58913). Spawning is induced by temperature and commences at the onset of the monsoon season (Ref. 58913). Food availability also acts as cue for breeding (Ref. 58913). Growth rate is a vital guiding environmental factor for sexual differentiation for this species as observed in a study (Ref. 58948). In this same study, frequency and amount of food prior to and throughout gonadal differentiation period resulted in more individuals differentiating to become females and is more pronounced in hybrid than pure bred groups (Ref. 58948). Often used for mosquito control (Ref 6351). Popular for aquarium purposes (Ref. 44325). Used as a model system (=organism) for developmental biology (Ref. 47810). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: of no interest; aquarium: highly commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Length-frequency wizard \| Life-history tool \| LifeMapper \| Point map

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (tmax=5.5 (in captivity); tm<1; multiple spawning per year; Fec=400-500)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (11 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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