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Ivan Sazima (1)

Habitat: The Guri Sea Catfish (Genidens genidens) can be found off the coast of southern Bahia, Brazil, and Uruguay. Reproduction: They migrate in large schools to fresh water, where they spawn in spring. The males carry out incubation of the eggs and leave their young in fresh water, where they grow and develop, to later return to the sea. Remarks: The Guri Sea Catfish (Genidens genidens) is assessed as Least Concern based on its wide range along the eastern coast of South America. This species is harvested throughout most of its range as a food a source. It is reported as abundant in areas of its range, but the species has a low fecundity which may make it susceptible to fishing pressure. Further research and monitoring of the harvest levels, fishing effort and population numbers is needed to confirm whether any serious population declines are occurring; if this proves to be the case then a reassessment will result in the species being moved into a higher threat category (IUCN 2009). Etymology: The specific name genidens: génys, jaw; dens (L.), tooth, referring to the moveable teeth on palate.

Guri Sea Catfish

Genidens granulosus, Pimelodus genidens, Bagrus genidens

Ariidae

Western Atlantic: Guyana south to La Plata River estuary (Argentina).

42.5.cm. TL (17ins)

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Acero, A. & Bentancur, R. 2010. Genidens genidens (errata version published in 2017). The IUCN Red List of Threatened Species 2010.
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2023. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 10/2023 ).
Mazzoni, R., J. Petito and J.C. Miranda, 2000. Reproductive biology of Genidens genidens, a catfish from the Maricá Lagoon, RJ. Ciéncia e Cultura 52(2):121-126.