Hemigrammus arua, a new species of characid (Characiformes: Characidae) from the lower Amazon, Brazil [PDF]
Neotropical IchthyologyA new Hemigrammus species is described from tributaries of the igarapé Juruti Grande and rio Arapiuns, lower rio Amazonas, Pará State, Brazil. The new species can be easily diagnosed from all its congeners, except from Hemigrammus stictus (Durbin), by ...
Flávio C. T. Lima +2 more
doaj +3 more sources
Mitochondrial Genome Structures and Phylogenetic Analyses of Two Tropical Characidae Fishes [PDF]
Frontiers in Genetics, 2021 The Characidae family contains the largest number of tropical fish species. Morphological similarities make species identification difficult within this family.
Cheng-He Sun +6 more
doaj +2 more sources
Illuminance-tuned collective motion in fish [PDF]
Communications Biology, 2023 We experimentally investigate the role of illumination on the collective dynamics of a large school (ca. 50 individuals) of Hemigrammus rhodostomus.
Baptiste Lafoux +3 more
doaj +2 more sources
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the rio Madeira and rio Paraguai basins, with a redescription of H. lunatus [PDF]
Neotropical Ichthyology, 2020 A new Hemigrammusis described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-
Rafaela P. Ota +2 more
doaj +3 more sources
The complete mitochondrial genome of Hemigrammus bleheri (Characiformes: Hemigrammus) and phylogenetic studies of Characiformes [PDF]
Mitochondrial DNA. Part B. Resources, 2019 Complete mitochondrial genome of the characiform fish Hemigrammus bleheri was characterized in the present study. The whole mitogenome was 17,021 bp in size and consisted of 13 protein-coding genes (PCGs), 22 tRNAs, 2 rRNAs genes, a control region, and ...
Qi Wang +7 more
doaj +2 more sources
An open-source closed-loop Virtual Reality system to investigate social interactions and collective behavior in fish. [PDF]
PLoS ONEThis study introduces a low-cost, open-source, immersive Virtual Reality (VR) system designed to investigate real-time social interactions and collective behaviors in fish.
Stéphane Sanchez +9 more
doaj +2 more sources
Rediscovery of Hemigrammus unilineatus (Gill, 1858) (Characiformes, Characidae) in Ecuador after more than three decades [PDF]
Check List, 2021 Hemigrammus unilineatus (Gill, 1858) (Characidae) is rediscovered in Yasuní National Park, eastern Ecuador, where it has not been reported since 1987. We present a detailed taxonomic description, including measurements and photographs, as well
Jonathan Valdiviezo-Rivera +2 more
doaj +3 more sources
Redescription of Moenkhausia melogramma (Characiformes: Characidae), a poorly known tetra from the western Amazon basin [PDF]
Neotropical Ichthyology, 2020 Moenkhausia melogramma is herein redescribed, based on the examination of the holotype plus additional specimens from the western Amazon basin in Brazil, Colombia, Peru, and Ecuador. Moenkhausia melogramma shares with M. collettii, M. conspicua, M. copei,
Isabel M. Soares +3 more
doaj +1 more source
Moenkhausia hemigrammoides Géry, 1965 (Characidae, Stethaprioninae) in Colombia: new records and comments on morphology [PDF]
Check List, 2019 Moenkhausia hemigrammoides Géry, 1965 was described from Suriname and recently found in the Ariari drainage, part of the Orinoco river basin. Here, we formally report the presence of this species in the Ariari and Inírida drainages ...
Alejandro Méndez-López +1 more
doaj +3 more sources
Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri [PDF]
Neotropical Ichthyology, 2020 Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported
Pedro Senna Bittencourt +4 more
doaj +1 more source