Common names:
Electric catfish
None
Taxonomic tree
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fish)
Order: Siluriformes (Catfish)
Family: Malapteruridae (Electric Catfishes)
Genus: Malapterurus
Species: Malapterurus electricus (Gmelin, 1789)
Number of Occurrancies: 10
Etymology(based on Scharpf & Lazara, 2019)
- Malapterurus: malakos, meaning soft, pteron, meaning fin; urus, tail; referring to adipose fin, which appears all the more prominent in the absence of a rayed dorsal fin [subsequent authors have attempted to amend Lacepède’s clumsy spelling of the name (Malapterus, Malopterurus, Malacopterurus) but the original spelling prevails]
- electricus: referring to its ability to produce an electric shock
Synonyms: click here to view synonyms
Type locality: Nile River at Banha, Egypt, 30°28'N 31°11'E. Neotype at British Museum of Natural History (BMNH)
General identification features for family Malapteruridae
- Scaleless, cylindrical, body and somewhat bloated in appearence
- Head covered with thick skin
- Rayed dorsal fin absent; a moderately developed adipose fin present and situated near the caudal fin; anal fin short situated below the adipose dorsal fin.
- Three pairs unbranched circum-oral barbels (nasal barbles absent). Note that families Auchenoglanidae and Mochokidae also lack nasal barbels, except that the mandibular
- Barbels in Mochokidae are branched
Distinguishing characters for the genus and species: The family Malapteruridae is only represented by one genus in Uganda, Malapterurus, and one species, M. electricus; the features given above suffice to identify the genus. Color is greyish-silver above, dead-white below, the body and fins covered with irregular and often large black blotches. The caudal and anal fins are outlined
with pinkish band.
Additional remarks: This species has a well-developed electric organ encasing most of the body that is capable of producing a powerful shock (up to 300-400 V) and the fish should be handled with extreeme care through a non-conducting medium. The electric organ may serve as powerful defence organ and may stun and immobilise fish's prey.
Distribution in Uganda: Lake Albert, the Nile
Occurence: Native
Habitat: Benthopelagic; common in shallow, well-vegetated inshore waters less than 10 m
Feeding: Voracious piscivore; feeding on cichlids, clupeids, schilbeids and other available fish species. The powerful high-frequency electric organ discharge volleys serve as major predatory mechanism (Sagua, 1979).
Biology: No information is available on the biology of fish for Ugandan populations. The fish can grow up to 122 cm standard length (SL).
Economic importance/End use: The species is impaortant in subsistence fisheries and as a gamefish. Despite the unpleasant appearence, its fresh is reputed to make good eating
IUCN conservation status: click here to view IUCN status
Threats: Unknown
Main references
- Greenwood PH. 1966. The fishes of Uganda. The Uganda Society, Kampala. 131 pages.
- Sharpf C, Lazara J.K. 2019. Fish Name Etymology Database v5. www.etyfish.org
- Sagua V.O. (1979). Observations on the food and feeding habits of the African electric catfish Malapterurus electricus (Gmelin). Journal of Fish Biology, 15, 61–69.