Trachelyopterus lucenai (Siluriformes: Auchenipteridae)
is an invasive fish in restinga of Rio Grande, Rio
Grande do Sul State, southern Brazil. In April 2007
remains of T. lucenai were found in the stomach
of an individual of Lontra longicaudis (neotropical
Otter) which was run over near a pluvial channel in
the restinga area. The present record contributes
to the knowledge on otters predation on exotic/invasive
species in aquatic environments (Porciuncula
& Quintelaa 2010). Aquarium
Care:Good addition to the
larger community tank and will not harass other occupants
as long as they are not too small to be eaten on this
catfishes night time prowls. Provide hiding places
for it. Diet: In the wild they feed
on they seem to feed mainly on shrimps, insects, juvenile
loricariid catfish and characins. In the aquarium
they will eat most aquarium fare. Remarks:
In the paper by Porciuncula & Quintelaa in 2010
this has been reported as an invasive species being
introduced through artificial cannals and water transfer.
Southern Driftwood Catfish
South America:Lowland tributaries
of Uruguay River and Laguna dos Patos basins, Brazil.
Type locality: Rio Jacuí at
saco do Quilombo, ilha das Flores, Porto Alegre, Rio
Grande do Sul, Brazil (approximately 29º58'S,
Froese, R. and D. Pauly.
Editors. 2020. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (03/2020). Ferraris, C.J. Jr., 2003. Auchenipteridae
(Driftwood catfishes). p. 470-482. In R.E. Reis, S.O.
Kullander and C.J. Ferraris, Jr. (eds.) Checklist
of the Freshwater Fishes of South and Central America.
Porto Alegre: EDIPUCRS, Brasil. Ferraris, C.J. Jr., 2007. Checklist
of catfishes, recent and fossil (Osteichthyes: Siluriformes),
and catalogue of siluriform primary types. Zootaxa
1418:1-628. Rafael Almeida Porciuncula, Fernando Marques
Quintelaa. Record of Invasive Black Catfish
(Trachelyopterus lucenai) Predation by the Neotropical
otter (Lontra longicaudis) IN RESTINGA OF RIO GRANDE,
SOUTHERN BRAZIL. Petersen, Peter. ScotCat Facebook
group. March 2021.