African knifefish

Gymnarchus niloticus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Osteoglossiformes
Family: Gymnarchidae
Bleeker, 1859
Genus: Gymnarchus
Cuvier, 1829
Species:
G. niloticus
Binomial name
Gymnarchus niloticus
Cuvier, 1829
Map
Aba IUCN range
  Extant (resident)
  Presence Uncertain & Introduced

The African knifefish, Gymnarchus niloticus – also called the aba aba – is an electric fish, and the only species in the genus Gymnarchus and the family Gymnarchidae within the order Osteoglossiformes.[1][2]

In 1950, Hans Lissmann noticed that the fish could swim equally well forwards or backwards, clearly relying on a sense other than vision. He demonstrated that it could locate prey by electroreception, making it the first fish known to have this ability.

  1. ^ a b Lalèyè, P.; Azeroual, A.; Entsua-Mensah, M.; et al. (2020). "Gymnarchus niloticus". IUCN Red List of Threatened Species. 2020: e.T181688A134949091. doi:10.2305/IUCN.UK.2020-2.RLTS.T181688A134949091.en.
  2. ^ Froese, Rainer; Pauly, Daniel, eds. (2014). "Gymnarchus niloticus". FishBase.