Early Biogeography of Otophysi Points to the Neotropics as the Cradle of Characiphysan Fishes [PDF]
Ecology and EvolutionFreshwaters represent less than 1% of Earth's surface and only 0.02% of the available aquatic habitable volume, yet they host nearly half of the 35,500 known species of bony fishes.
Achille Lenglin +9 more
doaj +3 more sources
Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon [PDF]
Genetics and Molecular Biology, 2013 The frequency of spontaneous micronucleus (MN) formation in fish species needs to be determined to evaluate their usefulness for genotoxic biomonitoring.
Karina Motta Melo +5 more
doaj +2 more sources
Archolaemus janeae (Gymnotiformes, Teleostei): First insights into karyotype and repetitive DNA distribution in two populations of the Amazon. [PDF]
Ecol Evol, 2021 Rodrigues PP +6 more
europepmc +2 more sources
Three new species of the Eigenmannia trilineata species group (Gymnotiformes: Sternopygidae) from northwestern South America [PDF]
Neotropical Ichthyology, 2020 Eigenmannia is one of the more taxonomically complex genera within the Gymnotiformes. Here we adopt an integrative taxonomic approach, combining osteology, COI gene sequences, and geometric morphometrics to describe three new species belonging to the E ...
Edgar Esteban Herrera-Collazos +3 more
doaj +2 more sources
eLife, 2022 Brain region size generally scales allometrically with brain size, but mosaic shifts in brain region size independent of brain size have been found in several lineages and may be related to the evolution of behavioral novelty.
Erika L Schumacher, Bruce A Carlson
doaj +1 more source
Comparable ages for the independent origins of electrogenesis in African and South American weakly electric fishes. [PDF]
PLoS ONE, 2012 One of the most remarkable examples of convergent evolution among vertebrates is illustrated by the independent origins of an active electric sense in South American and African weakly electric fishes, the Gymnotiformes and Mormyroidea, respectively ...
Sébastien Lavoué +5 more
doaj +1 more source
Mapping of Repetitive Sequences in Brachyhypopomus brevirostris (Hypopomidae, Gymnotiformes) from the Brazilian Amazon [PDF]
Animals (Basel)Paula Pinto Rodrigues +5 more
europepmc +3 more sources
Spooky Interaction at a Distance in Cave and Surface Dwelling Electric Fishes
Frontiers in Integrative Neuroscience, 2020 Glass knifefish (Eigenmannia) are a group of weakly electric fishes found throughout the Amazon basin. Their electric organ discharges (EODs) are energetically costly adaptations used in social communication and for localizing conspecifics and other ...
Eric S. Fortune +6 more
doaj +1 more source
Fish, Sorocaba river sub-basin, state of São Paulo, Brazil [PDF]
Check List, 2007 In this paper we present a list of the fish fauna of Sorocaba river sub-basin. Fish were caught with gillnets, sieves and puçás, a sort of funnel net. We listed 71 species, distributed in 7 orders, 22 families and 50 genera. Characiformes are represented
Welber Smith +2 more
doaj +5 more sources
Illustrated list of additions to the ichthyofauna of the Caura River, Venezuela [PDF]
Check List, 2012 Twenty nine species have been added to the annotated checklists of the ichthyofauna of the Caura River Basin, Guiana Shield, Venezuela. Of these, 18 were found in two floodplain lagoons in the lower Caura, corresponding to the orders Characiformes ...
Nirson González +3 more
doaj +3 more sources