Results 21 to 30 of about 1,833 (196)
Application of a deep learning image classifier for identification of Amazonian fishes. [PDF]
Ecol Evol, 2023 To address the growing prevalence of large ecological datasets combined with a need for rapid species identification tools, we describe a novel application of a computer vision model, which is built to rapidly identify Amazonian fishes from captured image data.
Robillard AJ +7 more
europepmc +2 more sources
Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]
J Fish BiolAbstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP +5 more
europepmc +2 more sources
Skin extract from Rhamdia quelen(Siluriformes: Heptapteridae) does not promote stress in conspecifics [PDF]
Neotropical Ichthyology, 2014 Chemical communication is widely used in aquatic environments, where visual or auditory signals may not be always effective. Fish of the superorder Ostariophysi are known to display epidermal cells (club cells) that produce and store alarm substances ...
Luciana Rodrigues de Souza-Bastos +2 more
doaj +3 more sources
Neotropical Ichthyology, 2016 Published as part of Donascimiento, Carlos, Cárdenas-Bautista, Johann-Stephens, Acosta, Kevin Giancarlo Borja, González-Alvarado, Arturo & Medina, Claudia A., 2016, Illustrated and online catalog of type specimens of freshwater fishes in the Colección de Peces Dulceacuícolas of Instituto de Investigación de Recursos Biológicos Alexander von Humboldt ...
Donascimiento, Carlos +4 more
openaire +5 more sources
Population Genomics in Rhamdia quelen (Heptapteridae, Siluriformes) Reveals Deep Divergence and Adaptation in the Neotropical Region. [PDF]
Genes (Basel), 2020 Rhamdia quelen, a Neotropical fish with hybridization between highly divergent mitochondrial DNA (mtDNA) lineages, represents an interesting evolutionary model. Previous studies suggested that there might be demographic differences between coastal lagoons and riverine environments, as well as divergent populations that could be reproductively isolated.
Ríos N +6 more
europepmc +6 more sources
Environmental DNA, Volume 5, Issue 6, Page 1351-1361, November 2023., 2023 The performance of a taxonomy‐free approach using ASV/MOTUs was not as precise as assigning DNA reads to species using a curated 12S library that includes approximately 100 fish species since more than one ASV/MOTU was observed for the same specimen.
Heron Oliveira Hilário +3 more
wiley +1 more source
New phylogenetic insights into the African catfish families Mochokidae and Austroglanididae
Journal of Fish Biology, Volume 100, Issue 5, Page 1171-1186, May 2022., 2022 Abstract Several hundred catfish species (order: Siluriformes) belonging to 11 families inhabit Africa, of which at least six families are endemic to the continent. Although four of those families are well‐known to belong to the ‘Big‐Africa clade’, no previous study has addressed the phylogenetic placement of the endemic African catfish family ...
Frederic D. B. Schedel +7 more
wiley +1 more source
Journal of Fish Biology, Volume 99, Issue 4, Page 1158-1189, October 2021., 2021 ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre +15 more
wiley +1 more source
Ictiofauna do Rio Jurubatuba, Santos, São Paulo: um refúgio de diversidade em terras impactadas [PDF]
, 2010 Ichthyofaunistic surveys in the Atlantic Rainforest have been published in relatively few works, in spite of the major biological importance of this once vast biome which is rapidly vanishing due to disordered human population growth and natural ...
IGLESIAS, José Manoel Pires +1 more
core +1 more source
New records of cave-dwelling populations of Rhamdia catfishes (Siluriformes, Heptapteridae) from Chiapas, Mexico [PDF]
Subterranean Biology, 2023 Dedicated ichthyological surveys in four active karstic caves in the Mexican state of Chiapas (Grijalva River drainage basin) resulted in the discovery of the same number of hypogean populations of Rhamdia catfishes assignable to two different species: R.
Martín Alonso Buenavad-González +5 more
doaj +3 more sources