v. 24, n. 1,
January / March 2026
Cytogenetic and COI-based analyses support a polytypic status of Astrodoras (Doradidae: Siluriformes)
Fábio Hiroshi Takagui, Patrik Viana, Chrystian Aparecido Grillo Haerter, Jamille de Araújo Bitencourt, José Luís Olivan Birindelli, Roberto Laridondo Lui, Vladimir Pavan Margarido, Fernanda Simões Almeida, Lucia Giuliano-Caetano, Eliana Feldberg and Jorge Ivan Rebelo Porto
Gonadal development and reproductive traits of pacific flat sleeper Dormitator latifrons (Gobiiformes: Eleotridae): insights for sustainable management in Ecuador
Yanis Cruz-Quintana, Ana María Santana-Piñeros, Byron Manuel Reyes-Mero, Leonela Griselda Muñoz-Chumo, Juan Carlos Vélez-Chica, Carles Alcaraz and Neil Duncan
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Differences in sagittal otoliths between two morid species: insights into the genus Physiculus (Moridae: Gadiformes)
César Santificetur, Pollyana Christine Gomes Roque, Sara de Castro Loebens, Alessandra Maria Advíncula Pires, Danielle de Lima Viana and Paulo Guilherme Vasconcelos de Oliveira
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Mitochondrial genetic variation of endemic stingray Potamotrygon magdalenae (Myliobatiformes: Potamotrygonidae) in the middle Magdalena River basin, Colombia
Carlos Arturo Amado-García, Iván Yesid López-Ardila and Fernando Rondón-González
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Diversity and abundance patterns of fish fauna in cascade reservoirs in the Brazilian semiarid tropical region
Jean Carlos Dantas de Oliveira, Jônnata Fernandes de Oliveira, Alexandre de Oliveira Marques, Danielle Peretti, Rodrigo S. da Costa Goldbaum and José Luís Costa Novaes
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Reduced fluoxetine-induced cyto- and genotoxicity in yellowtail tetra fish Astyanax altiparanae (Characiformes: Acestrorhamphidae) after treatment through a constructed wetlands system
Josiane Rodrigues Rocha da Silva, Camila Oliveira de Andrade, Patrícia Daniele Silva dos Santos, Oscar Oliveira Santos, Roney Peterson Pereira and Carlos Alexandre Fernandes
PDF: Download Here | Supplementary: S1
Development of the caudal fin and supporting skeleton in Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae) and insights into its evolution in the family
Fernando M. Assega, Alexander Claro-García, José L. O. Birindelli and Oscar A. Shibatta
PDF: Download Here | Supplementary: S1
A new Hemigrammus (Characiformes: Acestrorhamphidae) from the rio Cuiabazinho drainages, upper rio Paraguai basin
Katiane Mara Ferreira, Alexandre Cunha Ribeiro and Fernando Rogério Carvalho
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A new endemic genus of glass knifefish (Gymnotiformes: Sternopygidae) for the rare species Distocyclus guchereauae from the Maroni basin
Kevin T. Torgersen, Jessé M. Figueiredo-Filho, Eric B. Haddad, Patricia Torres-Pineda, Hernán López-Fernández and James S. Albert
PDF: Download Here | Supplementary: S1 S2 S3
Integrative taxonomy reveals a remarkably colored species of Characidium (Characiformes: Crenuchidae) from the upper rio Paraná basin, Brazil
Pedro L. C. Uzeda, Bruno H. M. Stabile, Renan B. dos Reis, Luana J. Sartori, Carla S. Pavanelli, Vladimir P. Margarido and Weferson J. da Graça
PDF: Download Here | Supplementary: S1
High fish richness associated with the southernmost Atlantic coral reef and adjacencies: comments on conservation and management for sustainable use
Ana Clara S. Athayde, Fernanda A. Rolim, Otto B. F. Gadig, Caio R. Pimentel, Rafael R. Munhoz, Maisha Gragnolati, Fernando Z. Gibran, Leonardo M. Neves, Domingos Garrone-Neto, Gabriel R. S. Souza, Luiza D. Chelotti, Guilherme H. Pereira‑Filho and Fábio S. Motta
PDF: Download Here | Supplementary: S1 S2
After eight decades: a new species of Pterobunocephalus (Siluriformes: Aspredinidae) from the upper Putumayo, Napo and Pastaza rivers, Ecuador
Jefferson Luan Crispim, Pablo Argüello, Gabriel de Souza da Costa e Silva, Claudio Oliveira, Kyle R. Luckenbill and Mark H. Sabaj
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Reproductive biology of the spotfin hatchetfish Thoracocharax stellatus (Characiformes: Gasteropelecidae) in the Western Amazon
Marcelle Fernanda de Oliveira Barbosa, Raquel Santos dos Santos, Felipe Fernando Silva Siqueira, Eduardo Silva do Nascimento Albuquerque, Natalia Rodrigues da Silva, Sara Ferreira Pedrosa, Paulo de Souza Jesus, Otávio Antunes Lacerda, Marcelo Ândrade, Maria Auxiliadora Pantoja Ferreira, Caio Maximino and Diógenes Henrique Siqueira-Silva
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One species, two basins: a new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the upper rio Juruena and rio Guaporé basins, Mato Grosso, Brazil
Fernando Cesar Paiva Dagosta, Willian Massaharu Ohara and Thomaz Jefrey Seren
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Environmental factors drive trophic dynamics but not niche overlap of sympatric Lebiasinidae fishes in Amazonian streams
Francisco de Paulo Tavares Ribeiro, Bruno da Silveira Prudente and Tiago Magalhães da Silva Freitas
PDF: Download Here | Supplementary: S1
Hidden diversity in the Paraná River basin: a new species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Bermejo River, Argentina
Gastón Aguilera, Guillermo E. Terán, Miguel Ángel Cortés Hernández, Axel M. Katz, Valter M. Azevedo-Santos, Mauricio Benitez and Marcos Mirande
PDF: Download Here | Supplementary: S1 S2
Addressing challenges in Hoplias cf. malabaricus (Characiformes: Erythrinidae) taxonomy and distribution in Southern Brazil with otolith shape analysis
Matheus Henrique Hamann, Matheus Oliveira Freitas, Maurício Osvaldo Moura, Luis Roberto Bueno and Vinicius Abilhoa
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Description of two threatened and polymorphic seasonal killifish species of the genus Hypsolebias (Cyprinodontiformes: Rivulidae) from the Piranhas-Açu River basin, in the Brazilian semiarid
Yuri Gomes Abrantes, Waldir Miron Berbel-Filho, Roberto Almeida Carvalho, Telton Pedro Anselmo Ramos and Sergio Maia Queiroz Lima
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An unexpected discovery of a new species of Jenynsia (Cyprinodontiformes: Anablepidae)
Caroline Hartmann, Juliana M. Wingert, Rafael C. Angrizani and Luiz R. Malabarba
PDF: Download Here | Supplementary: S1
Phylogenetic placement and description of a new species of Leptorhamdia (Siluriformes: Heptapteridae) from the Amazon basin
Gabriel de S. C. Silva, Lais Reia, Camila S. Souza, Eric V. Ywamoto and Claudio Oliveira
PDF: Download Here | Supplementary: S1
A new species of freshwater stingray (Myliobatiformes: Potamotrygoninae) from northern South America
Devya Hemraj-Naraine, João Pedro Fontenelle, Astrid Acosta-Santos, Nathan R. Lovejoy, Elford Liverpool and Matthew A. Kolmann
PDF: Download Here | Supplementary: S1
Dispersal limitation, environmental filtering, and historical contingencies explain the patterns of taxonomic and phylogenetic turnover in Amazonian freshwater fish faunas, but only poorly their functional traits turnover
Murilo S. Dias, Céline Jézéque, Bernard Hugueny, Fabien Leprieur, Sébastien Brosse, James Albert, Fernanda A. S. Cassemiro, Renata G. Frederico, Max Hidalgo, Hernan Ortega, Pablo A. Tedesco, Gislene Torrente-Vilara, Jansen Zuanon, Rémy Bigorne, Koen Martens, Astrid Acosta, Edwin Agudelo, Soraya Barrera Maure, Douglas A. Bastos, Juan Bogotá-Gregory, Fernando G. Cabeceira, André L. C. Canto, Fernando M. Carvajal-Vallejos, Lucélia N. Carvalho, Ariana Cella-Ribeiro, Raphaël Covain, Carlos DoNascimiento, Carolina R. C. Dória, Cleber Duarte, Efrem J. G. Ferreira, André V. Galuch, Tommaso Giarrizzo, Rafael P. Leitão, John G. Lundberg, Mabel Maldonado, Luciano F. A. Montag, Willian Massaharu Ohara, Tiago H. S. Pires, Marc Pouilly, Saúl Prada-Pedreros, Luiz J. de Queiroz, Lucia Rapp Py-Daniel, Frank R. V. Ribeiro, Raúl Ríos Herrera, Jaime Sarmiento, Leandro M. Sousa, Lis F. Stegmann, Jonathan Valdiviezo-Rivera, Francisco Villa, Takayuki Yunoki, Aaike de Wever and Thierry Oberdorff
PDF: Download Here | Supplementary: S1 S2 S3 S4 S5 S6 S7 S8 S9 S10
Climate change affects the potential distribution of a Neotropical freshwater migratory fish
Beatriz Cristina de Paula de Souza, Luana Caroliny Possamai, Katia Yasuko Yofukuji, Taise Miranda Lopes, Luiz Fernando Esser, José Hilário Delconte Ferreira, Reginaldo Ré, Weferson Júnio da Graça, Ana Francisca Gomes da Silva, Jefferson Matheus Barros Ozório, Dayani Bailly and Valéria Flávia Batista-Silva
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Variation in basal production sources supporting fish trophic guilds in the channel and floodplain ponds of the Rupununi River, Guyana, during dry season isolation
Benton L. Fry, Calvin J. Young, Carmen G. Montaña, Leslie C. Kelso Winemiller and Kirk O. Winemiller
PDF: Download Here | Supplementary: S1 S2
Brain morphology of native and invasive Cichla piquiti, the blue peacock bass (Cichliformes: Cichlidae), with ecomorphological insights
Pedro Henrique Marinho-Nunes, Thiago Nilton Alves Pereira and Fernando Mayer Pelicice
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