v. 24, n. 2,
April / June 2026
Applying multi-mesh gillnet to monitor fish communities in neotropical rivers
Dieison André Moi, Alejandro D’Anatro, Ivan González-Bergonzoni and Franco Teixeira-de-Mello
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Trophic dynamics of a carnivorous catfish under dam-regulated flood conditions in the Amazon
Antonio Augusto Jardim Jr, Erival Gonçalves Prata, Lais Martins Silva, João Pedro da Silva Moraes, Lucas Pires de Oliveira, Luciano Fogaça de Assis Montag and Tiago Magalhães da Silva Freitas
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High pasture land cover reduces modularity of trophic networks from Brazilian stream fish assemblages
Dianne M. A. S. Nuven, Juan Pablo Quimbayo, Ariane A. Rodrigues, José Francisco Gonçalves Júnior and Murilo Sversut Dias
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Sex differences in landmark-based spatial learning in the sailfin tetra Crenuchus spilurus (Characiformes: Crenuchidae)
Kalebe S. Pinto, Jansen Zuanon and Tiago H. S. Pires
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Integrative cytogenetic and molecular evidence reveals a new cryptic lineage within the “Parodon suborbitalis complex” (Characiformes: Parodontidae)
Matheus Azambuja, Ezequiel A. de Oliveira, Francisco de M. C. Sassi, Viviane Nogaroto, Orlando Moreira-Filho, Carla S. Pavanelli and Marcelo R. Vicari
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Effects of pollution and watercourse type on trophic structure: the silverside Basilichthys microlepidotus and its food resources in the Maipo River basin as a model
Matías Briones, Jorge Cortés-Miranda, Claudio Veloso, David Véliz and Caren Vega-Retter
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Detection of the critically endangered catfish Trichogenes claviger (Siluriformes: Trichomycteridae) using environmental DNA
Juliana Paulo da Silva-Novelli, Heron Oliveira Hilário, Daniel Cardoso Carvalho, Ronaldo Fernando Martins-Pinheiro and Luisa Maria Sarmento-Soares
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A new tetra of the genus Astyanax (Characiformes: Acestrorhamphidae) with lateral stripes from lower Amazon basin, Brazil
Josué Sarino-Araújo, Cárlison Silva-Oliveira, Flávio C. T. Lima, André L. C. Canto and Frank R. V. Ribeiro
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Integrative taxonomy data are reconciled around Arapaima gigas (Osteoglossiformes: Arapaimidae) for the Brazilian Amazon
Valdenor Magalhães, Nasrah Muhammad Calderaro Handam,
Micael Cavalli, Izeni Pires Farias and Lúcia Rapp Py-Daniel
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Evaluating sampling methods for fish diversity and composition across seasons in Northeastern Brazil’s reservoirs
Bruno Silva de Alcântara, Silvia Yasmin Lustosa-Costa, Telton Pedro Anselmo Ramos and Rosemberg F. Menezes
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Ichthyofauna of Paraíba State, Brazil: diversity patterns, knowledge gaps, and challenges for fish conservation and sustainable use
Viviana Márquez-Velásquez, Ricardo S. Rosa, Manoela Maria Ferreira Marinho, João Paulo Capretz Batista da Silva, Telton Pedro Anselmo Ramos, Ana Carolina Figueiredo Lacerda, Gabriel Beltrão, André Castro, Marcio Wanderson, Danielle Cristina Gamba, Laure Berti-Equille and Rafael L. G. Raimundo
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Hidden diversity of the catfish genus Trachelyichthys (Siluriformes: Auchenipteridae): a revisionary study with description of four new species from the Amazon basin
Bárbara B. Calegari, Alberto Akama, Carl J. Ferraris Jr. and Roberto E. Reis
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Where are we going to live? Population genomics emits warning signals about endangered Amazonian rheophilic loricariids under habitat loss
Marina Gomes Leonardo, Éder Cristian Malta de Lanes, Felipe Arian de Andrade Araújo, Vanessa Paes da Cruz, Silvia Eliza Pavan, Iann Leonardo Pinheiro Monteiro, Tânia Fontes Quaresma, Claudio Oliveira and Alberto Akama
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A new species of Tridensimilis (Siluriformes: Trichomycteridae) from Tapajós basin: the largest translucent catfish species of Tridentinae
André L. Colares Canto, Aléssio Datovo, Willian M. Ohara, Mário C. C. de Pinna and Frank Raynner V. Ribeiro
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Functional diversity of fish communities in the Amacuzac River, Morelos, Mexico
Gabriel Cordero-Martínez, Norman Mercado-Silva, Ilse J. Ortega-Martínez, Sandra García de Jesús and Juan Suárez-Sánchez
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Two new species of Gobioclinus (Blenniiformes: Labrisomidae) from the western South Atlantic, with comments on the conservation of cryptobenthic reef fishes in the Brazilian Province
Gabriel S. Araujo, Guilherme Loyola da Cruz, João Luiz Gasparini, Fabio Di Dario and Hudson T. Pinheiro
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Reef fish biophony under tourism-driven sound pollution in Northeastern Brazil
Túlio Freire Xavier, Luísa Valentim Melo de Vasconcelos Queiroz Véras and João Lucas Leão Feitosa
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A new Corydoras (Siluriformes: Callichthyidae) from the rio Tefé basin, Brazilian Amazon, with comments on the taxonomic status of Corydoras orcesi and a discussion on the mouth morphology in Corydoradinae
Luiz Fernando Caserta Tencatt, Alexandre Pucci Hercos, Vandergleison de Carvalho, Sérgio A. Santos and Marcelo R. Britto
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A relict from the water: a new species from the río Magdalena basin (Colombia) of the mostly cis-Andean diversified genus Knodus (Characiformes: Stevardiidae)
Juan G. Albornoz-Garzón, Paola Pulido-Santacruz, Jorge E. García-Melo, Mauricio Torres and Carlos DoNascimiento
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Cytogenetic investigation of the Ageneiosus ucayalensis group (Siluriformes: Auchenipteridae) reveals chromosomal uniformity
Sandro Tonello, Natália L. Lira, Esteban D. Koch, Daniel R. Blanco, Eliana Feldberg, Roberto L. Lui and Josiane B. Traldi
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Mitochondrial multilocus data suggests fine-scale influences of Pleistocene events on the spatial distribution of lineages of a fish species among neighboring sub-basins in the southern upper Paraná River
Caroline Apolinário-Silva, Roberta C. Clemente, Ana J. C. Marques, Maria V. H. Rodrigues, Thais Kotelok-Diniz, Wilson Frantine-Silva, Amanda A. Moreira, Bruno A. Galindo, Augusto S. Zanatta, Carlos E. G. Aggio, Dyego L. F. Caetano, Lenice Souza-Shibatta, Silvia H. Sofia and Dhiego G. Ferreira
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Allometric patterns in Potamotrygon motoro (Myliobatiformes: Potamotrygonidae): insights into sexual and ontogenetic variation
Júlia Papalardo Azevedo, Thiago Silva Loboda and Veronica Slobodian
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Length at first maturity of 42 freshwater fish species in the Itaipu Reservoir reveals strong reproductive-size relationships
Éder André Gubiani, Anderson Luís Maciel, Geuza Cantanhêde, Luiz Guilherme dos Santos Ribas, Pitágoras Augusto Piana, Suelen Zontta Kiem and Caroline Henn
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Integrative cytogenetic and molecular analyses reveal chromosomal polymorphism in Rineloricaria langei (Siluriformes: Loricariidae): reporting the highest diploid number in the genus
Sérgio João Sartor Neto, Ligia Carla Balini, Lucas Pietro Ferrari Gianini, Cláudio Henrique Zawadzki, Fernanda Errero Porto, Luciana Andreia Borin-Carvalho, Alessandra Valéria de Oliveira, Laura Ivana Ramos and Carlos Alexandre Fernandes
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Importance of tributaries for fish reproduction and conservation in a highly anthropized river basin
Paulo Santos Pompeu, Fábio Mineo Suzuki, Ivo Gavião Prado, Andressa Mendes Silva-Sene, Daniel Cardoso Carvalho, Heron Oliveira Hilário and Carlos Bernardo Mascarenhas Alves
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