Argentine conger

Argentine conger
Illustration of Argentine conger
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anguilliformes
Family: Congridae
Genus: Conger
Species:
C. orbignianus
Binomial name
Conger orbignianus
Synonyms
  • Conger multidens Castelnau, 1855
  • Conger orbignyanus Valenciennes, 1837
  • Leptocephalus orbignyanus (Valenciennes, 1837)[2]

The Argentine conger (Conger orbignianus) is a conger eel of the class Actinopterygii. It is found in its adult form on the South American coast of the Atlantic Ocean in Brazil, Uruguay, and Argentina, though its larval form has been discovered in the Gulf of Guinea on Africa's Atlantic coast.

Taxonomy

The Argentine conger was first described by Achille Valenciennes in 1837. It has also been described under the synonyms Conger multidens, Conger orbignyanus, and Leptocephalus orbignyanus. It is classified in the Congridae family (conger eels) of the order Anguilliformes (eels), in the class Actinopterygii.[3]

Ecology

The Argentine conger is a demersal fish found in the western Atlantic Ocean between Rio de Janeiro, Brazil and the San Jorge Gulf of Argentina. In the Eastern Atlantic it only been found in its larval form in the southern Gulf of Guinea from Annobón, Equatorial Guinea to Mossamedes, Angola. It preys on fishes, shrimps, crabs, and mollusks.[4]

The species is assessed as a least-concern species on the IUCN Red List. It lives in the neritic zone, at least 10 metres deep with an unknown maximum depth. It has been accidentally taken by fishers with trawling nets.[1]

Description and life cycle

The Argentine conger is a marine eel with small, fan-shaped pectoral fins. It reaches up to 112 centimetres (3 ft 8 in) in length. Female specimens gathered from Brazilian waters displayed likely early stages of semelparity, or death after a single instance of reproduction, as the ovaries occupied the specimens' entire abdominal cavities and the bodies had begun to degrade.[4]

References

  1. ^ a b McCosker, J.; Smith, D.G.; Tighe, K. (2019). "Conger orbignianus". IUCN Red List of Threatened Species. 2019: e.T195016A122369597. doi:10.2305/IUCN.UK.2019-1.RLTS.T195016A122369597.en. Retrieved 27 December 2021.
  2. ^ a b "Conger orbignianus Valenciennes, 1837". Catalogue of Life. Retrieved 14 July 2025.
  3. ^ "Conger orbignianus Valenciennes, 1837". IRMNG. Retrieved 14 July 2025.
  4. ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Conger orbignianus". FishBase.