Astyanax bimaculatus (Linnaeus, 1758)
Twospot astyanax
Astyanax bimaculatus
photo by Eakins, R.

Family:  Characidae (Characins), subfamily: Incertae sedis
Max. size:  17.5 cm TL (male/unsexed); max.weight: 91.6 g; max. reported age: 18 years
Environment:  benthopelagic; pH range: 5.5 - 7.5; dH range: 25, potamodromous
Distribution:  South America: Panama to the Amazon basin.
Biology:  Inhabits large free flowing clear rivers, small streams, drainage ditches and artificial ponds and impoundments (Ref. 11225). Feeds on zooplankton, detritus, higher plants and sometimes on the scales of fish. Gametogenesis takes place during the dry season in time for reproduction to begin during the rainy season (Ref. 12225). Reproduction could be carried out in captivity (Ref. 27188).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Binohlan, Crispina B. - 21.06.91
Modified by: Torres, Armi G. - 13.11.08
Checked by: Binohlan, Crispina B. - 13.08.94

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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