Eigenmannia virescens (Valenciennes, 1836)

Common Names


No common names available.

Taxonomic Hierarchy


Kingdom: Animalia

Phylum: Chordata

Class: Teleostei

Order: Gymnotiformes

Family: Sternopygidae

Genus: Eigenmannia

Species: Eigenmannia virescens (Valenciennes, 1836)

Climate Zone


  • Subtropical
  • Location


  • South America: widely distributed east of the Andes from the Orinoco to the La Plata River basins.
  • Biology


    Known to be gregarious, timid and nocturnal (Ref. 27188). Prefers deep still waters (Ref. 75964). Found in ponds (Ref. 11229) and creeks with a substrate rich in plant debris (Ref. 12225). This gymnotiform fish can be found in colder waters of 18°C (Ref. 10011). Electric organ discharge (EOD) frequency cues have been experimentally shown to play a role in species and sex recognition in this species (Ref. 10598). Playback of a conspecific male's electric courtship display elicited spawning in ripe females. Diel rhythmic change in EOD may be manifested by the increase in EOD amplitude at night among dominant breeding males as they compete with other conspecifics (Ref. 10599). A fractional spawner; fecundity reported at 905 eggs (Ref. 10605). Males reportedly reach 45 cm TL, females to 20 cm TL (Ref. 1672).

    Habitat


    benthopelagic

    Conservation Status


    Not Evaluated

    Threat to Humans


    Harmless