Gasteropelecus sternicla (Linnaeus, 1758)
River hatchetfish
photo by Anderson,T.

Family:  Gasteropelecidae (Freshwater hatchetfishes)
Max. size:  3.9 cm SL (male/unsexed)
Environment:  pelagic; pH range: 6 - 7; dH range: 15
Distribution:  South America: Peruvian Amazon, middle Amazon, the Guianas and Venezuela (Ref. 39056). Recorded from the Paraguay basin (Ref. 81048).
Biology:  Gregarious, can sometimes be aggressive or calm. Frequents slow-flowing waters of creeks and swamps (Ref. 27188). Lives in groups at the surface. It is capable of capturing small aerial insects. The females are bigger than the males. Feeds on worms, crustaceans and insects (Ref. 7020). Has not been bred in captivity (Ref. 27188). Aquarium specimens reach 6.5 cm TL (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; may jump out of the aquarium; minimum aquarium size 80 cm (Ref. 51539).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Torres, Armi G. - 13.06.94
Modified by: Reyes, Rodolfo B. - 09.02.18
Checked by: Weitzman, Stanley - 05.07.00

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 Not for publication.

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