Clarias gariepinus (Burchell, 1822)

Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, Neotropical Ichthyology 16 (2), pp. 1-111 : 65

Clarias gariepinus (Burchell, 1822)

Fig. 19

Body elongated; greatest depth contained 5.5 to 9.3 and caudal peduncle depth 9.9 to 16.1 times in SL; head length 2.9 to 3.8, anal-fin base length 2.1 to 2.7, maxillary-barbel length 1.6 to 6.5 in SL; snout length 3.7 to 5.7, horizontal orbital diameter 7.6 to 19.2, least interorbital width 2.2 to 2.7 in HL. Mouth terminal with dentigerous tooth plates in both premaxilla, vomer and dentary. Dorsal fin with 61- 79, pectoral fin with I,9-12, pelvic fin with 6 and anal fin with 45-60 rays ( Hanssens, 2009). Ground color grey to yellowish, abdominal region white.

Maximum standard length. 700.0 mm.

Biological data. Lives in lakes, rivers and seasonally swampy areas ( Winemiller, Kelso-Winemiller, 1996). Feeds on plant material, plankton, arthropods, mollusks, fish, reptiles, and amphibians ( Yalçin et al., 2001).

Distribution. Africa and Asia Minor; introduced elsewhere ( Eschmeyer et al., 2017).

Remarks. Clarias gariepinus , native of Africa, has been captured in the upper rio Paraná floodplain since 2005 by Nupélia staff. Its occurrence in the region can be associated with fish-farming and escapes from recreational angling ponds.

Figures

Fig. 19. a. Callichthys callichthys, MZUSP 60261, 120.0 mm SL, córrego da Onça, afluente do rio Pardo, Barra do Turvo, State of São Paulo. b. Corydoras aeneus, NUP 17578, 43.1 mm SL, córrego Guaçu, tributary of the rio Abambai, Itaquirai, State of Mato Grosso do Sul. c. Corydoras sp., NUP 16185, 33.4 mm SL, córrego Santa Maria, tributary of the rio Iguatemi, Mundo Novo, State of Mato Grosso do Sul. d. Hoplosternum littorale, NUP 161, 133.4 mm SL, lagoa Mutum, Porto Rico, State of Paraná. e. Lepthoplosternum pectorale, 100.0 mm SL, uncat. f. Cetopsis gobioides, 102.4 mm SL, uncat. g. Clarias gariepinus, NUP 11900, 329.0 mm SL, rio Lopei (Pesque-Pague Big Peixes), tributary of the rio Toledo, Cascavel, State of Paraná.