First report of Genidens barbus during the non-reproductive period in coastal waters of Río Negro, Argentina
DOI:
https://doi.org/10.47193/10.47193/mafis.3912026010107Keywords:
White catfish, distribution, Ariidae, marine catfish, mochueloAbstract
The marine catfish Genidens barbus is a benthic and anadromous species distributed from Brazil to southern Argentina. Its presence during the non-reproductive period remains poorly documented. This study reported the first confirmed record of a female G. barbus outside the reproductive season, which was incidentally caught in the artisanal Argentine red shrimp (Pleoticus muelleri) fishery off the coast of Río Negro, Argentina (41° 05′ S-64° 03′ W) at a depth of 70 m. This finding provides novel evidence for the Patagonian population, suggesting that the species may occupy deeper marine habitats during non-reproductive periods. The presence of P. muelleri in the stomach content reinforces its benthophagous feeding habit and trophic association with the coastal benthic community. This record expands the current knowledge of the seasonal and ecological distribution of G. barbus, as well as conservation strategies. Given its status as a vulnerable species and the limited information available on its behavior outside estuaries, this finding makes a significant contribution to our understanding of Patagonian ichthyofauna and the sustainable management of its populations.
Downloads
References
Araujo FG. 1988. Distribuição, abundância relativa e movimentos sazonais de bagres marinhos no estuário da Lagoa dos Patos. Rev Bras Zool. 5 (4): 509-543. DOI: https://doi.org/10.1590/S0101-81751988000400002
Avigliano E, Maichak de Carvalho B, Leisen M, Romero R, Velasco G, Vianna M, Barra F, Volpedo AV. 2017. Otolith edge fingerprints as approach for stock identification of Genidens barbus. Estuar Coast Shelf Sci. 194: 92-96. DOI: https://doi.org/10.1016/j.ecss.2017.06.008
Avigliano E, Pisonero J, Méndez A, Tombari A, Volpedo AV. 2022. Habitat use of the amphidromous catfish Genidens barbus: first insights at its southern distribution limit. N Z J Mar Freshw Res. DOI: https://doi.org/10.1080/00288330.2021.1879178 DOI: https://doi.org/10.1080/00288330.2021.1879178
Avigliano E, Volpedo A. 2015. New records of anadromous catfish Genidens barbus (Lacépède, 1803) in the Paraná Delta (South America): evidence of extent in migration corridor? Mar Biodivers Rec. 8 (23): 1-4. DOI: https://doi.org/10.1017/S175526721400147X
Baigún CRM, Colautti D, López HL, Van Damme PA, Reis RE. 2012. Application of extinction risk and conservation criteria for assessing fish species in the lower La Plata River basin, South America. Aquat Conserv Mar Freshw Ecosyst. 22 (2): 181-197. DOI: https://doi.org/10.1002/aqc.2223
Bogan S, Fernández EM. 2013. Presencia del bagre marino Genidens planifrons (Teleostei, Siluriformes, Ariidae) en las costas de la República Argentina. Rev Mus Argent Cienc Nat. 15 (1): 107-111. DOI: https://doi.org/10.22179/REVMACN.15.172
Figueiredo JL, Menezes NA. 1978. Manual de peixes marinhos do sudeste do Brasil. II. Teleostei (1). São Paulo: Museu de Zoologia, Universidade de São Paulo. 110 p. DOI: https://doi.org/10.5962/bhl.title.109986
Góngora ME, Ruibal Núñez J, Cochia PD, Bovcon ND. 2023. Species composition and assemblage analysis of fishes caught as bycatch by the Patagonian shrimp fishery in the southwest Atlantic. An Acad Bras Cienc. 95 (4): e20200735. DOI: https://doi.org/10.1590/0001-3765202320200735 DOI: https://doi.org/10.1590/0001-3765202320200735
González Dubox MC, Baggio RB, Funes AI, López Greco LS, Tombari AD. 2024. Primer reporte del bagre marino Genidens barbus (Lacepede, 1803), Siluriformes, Ariidae en la bahía de Puerto San Julián, Santa Cruz, Argentina. Foro Iberoam Rec Mar Acui. 12: 1-12.
Marceniuk AP. 2005. Redescrição de Genidens barbus (Lacépède, 1803) e Genidens machadoi (Miranda-Ribeiro, 1918), bagres marinhos (Siluriformes, Ariidae) do Atlântico Sul Ocidental. Pap Avulsos Zool. 45 (11): 111 125. DOI: https://doi.org/10.1590/S0031-10492005001100001
Marceniuk AP, Menezes NA. 2007. Systematics of the family Ariidae (Ostariophysi, Siluriformes), with a redefinition of the genera. Zootaxa. 1416: 1-126. DOI: https://doi.org/10.11646/zootaxa.1416.1.1
Marceniuk A, Oliveira C, Ferraris C. 2024. A new classification of the family Ariidae (Osteichthyes: Ostariophysi: Siluriformes) based on combined analyses of morphological and molecular data. Zool J Linn Soc. 200 (2): 426-476. DOI: https://doi.org/10.1093/zoolinnean/zlad078 DOI: https://doi.org/10.1093/zoolinnean/zlad078
Mendonça JT, Quito L, Jankowsky M, Balanin S, Garrone-Neto D. 2017. Diagnóstico da pesca do bagre-branco (Genidens barbus e G. planifrons) no litoral sudeste-sul do Brasil: subsídios para o ordenamento. Sér Relat Téc Inst Pesca. 56: 1-77.
Reis EG. 1986a. Reproduction and feeding habits of the marine catfish, Netuma barba (Siluriformes, Ariidae), in the estuary of the Patos Lagoon (Brazil). Atlantica. 8: 35-55.
Reis EG. 1986b. Age and growth of the marine catfish, Netuma barba (Siluriformes, Ariidae), in the estuary of the Patos Lagoon (Brazil). Fish Bull. 84: 679-686.
Reis EG. 1992. An assessment of the exploitation of the white croaker Micropogonias furnieri (Pisces, Sciaenidae) by the artisanal and industrial fisheries in coastal waters of southern Brazil [PhD thesis]. Norwich: University of East Anglia. 223 p.
[SAGyP] Secretaría de Agricultura, Ganadería y Pesca. 2025. Pesca marítima 2025. [consultado 11 noviembre 2025]. https://www.magyp.gob.ar/sitio/areas/pesca_maritima/.
Segura AM, Delgado EA, Carranza A. 2008. La pesquería de langostino en Punta Del Diablo (Uruguay): un primer acercamiento. Pan Am J Aquat Sci. 3: 232-236.
Sieldfeld K. 1979. Nuevo registro de Netuma barbus (Lacepède) 1803 para aguas chilenas (Pisces: Siluriformes). An Inst Patagonia. 10: 189-192. http://200.54.63.162/handle/20.500.11893/723
Tavares LE, Luque JL. 2004. Community ecology of the metazoan parasites of white sea catfish, Netuma barba (Osteichthyes: Ariidae), from the coastal zone of the state of Rio de Janeiro, Brazil. Braz J Biol. 64: 169-176. DOI: https://doi.org/10.1590/S1519-69842004000100019
Tavares MTM, Di Beneditto APM. 2017. Feeding habits and behaviour of Bagre bagre and Genidens barbus, two ariid catfishes (Pisces: Siluriformes) from southeastern Brazil. J Threat Taxa. 9 (10): 10771-10775. DOI: https://doi.org/10.11609/jott.3758.9.10.10771-10775
Velasco G, Reis EG. 2004. Changes in growth seasonality throughout Netuma barba (Lacépéde, 1803) (Siluriformes, Ariidae) ontogeny. Bras J Biol. 64: 371-382. DOI: https://doi.org/10.1590/S1519-69842004000500024
Velasco G, Reis EG, Vieira JP. 2007. Calculating growth parameters of Genidens barbus (Siluriformes, Ariidae) using length composition and age data. J Appl Ichthyol. 23: 64-69. DOI: https://doi.org/10.1111/j.1439-0426.2006.00793.x
Vieira JP, Castello JP. 1997. Fish fauna. In: Seeliger U, Odebrecht C, Castello JP, editors. Subtropical convergence environments: the coastal and sea in the southwestern Atlantic. Berlin: Springer. p. 56-61.
Published
Issue
Section
License
Copyright (c) 2025 Andrea D. Tombari, Fernando Andrés, Laura S. López Greco, M. Cecilia González Dubox
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors of articles published in Marine and Fishery Sciences retain copyright on their articles, except for any third-party images and other materials added by Marine and Fishery Sciences, which are subject to copyright of their respective owners. Authors are therefore free to disseminate and re-publish their articles, subject to any requirements of third-party copyright owners and subject to the original publication being fully cited. Visitors may also download and forward articles subject to the citation requirements. The ability to copy, download, forward or otherwise distribute any materials is always subject to any copyright notices displayed. Copyright notices must be displayed prominently and may not be obliterated, deleted or hidden, totally or partially.
This journal offers authors an Open Access policy. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other legal purpose within the Creative Commons 4.0 license (BY-NC-SA), without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of Open Access.
