The marine catfish (Genidens barbus) in the Chubut River estuary: A new record on the Argentine Patagonian coast
Vol. 89 No. 1 (2025), Short Communications
Vol. 89 No. 1 (2025)

The marine catfish (Genidens barbus) in the Chubut River estuary: A new record on the Argentine Patagonian coast

Short Communications
Published 2025-06-30
Aime I. Funes
Universidad Nacional de Río Negro, Sede Atlántica, Don Bosco y Leloir, PC 8500AEC Viedma, Río Negro, Argentina
https://orcid.org/0000-0002-0368-6672
María C. González Dubox
Universidad Nacional de Río Negro, Sede Atlántica, Don Bosco y Leloir, PC 8500AEC Viedma, Río Negro, Argentina
Romina B. Baggio
Centro de Investigación y Transferencia Río Negro (CONICET-UNRN), PC 8500AEC Viedma, Río Negro, Argentina
https://orcid.org/0000-0003-0277-3982
Andrea D. Tombari
Centro de Investigación y Transferencia Río Negro (CONICET-UNRN), PC 8500AEC Viedma, Río Negro, Argentina
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Keywords

anadromous species
conservation
distribution

How to Cite

Funes, A. I., González Dubox, M. C., Baggio, R. B., & Tombari, A. D. (2025). The marine catfish (Genidens barbus) in the Chubut River estuary: A new record on the Argentine Patagonian coast. Gayana, 89(1), 94–98. Retrieved from https://gayana.cl/index.php/gn/article/view/409
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Abstract

The marine catfish (Genidens barbus) is an anadromous species from South America, distributed from Brazil to Argentina. It is considered vulnerable due to its low fecundity and male mouthbrooding, with individuals migrating to estuaries for reproduction. Overexploitation has made it vulnerable in Argentina and endangered in Brazil. In February 2019, two adult males were captured in Playa Unión, confirming its presence in the Chubut River estuary, Argentina.

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Copyright (c) 2025 Aime I. Funes, María C. González Dubox, Romina B. Baggio, Andrea D. Tombari

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