Results 11 to 20 of about 663 (166)

DNA barcoding and phylogeography of the Hoplias malabaricus species complex [PDF]

open access: yesScientific Reports, 2022
Hoplias malabaricus (Bloch, 1794) is a carnivorous fish species widely distributed from northern to southern South America. This taxon is believed to be a good model for the investigation of biogeographic events that shape the ichthyofauna evolution in ...
Karen Larissa Auzier Guimarães   +5 more
doaj   +4 more sources

Sex Chromosome Evolution and Genomic Divergence in the Fish Hoplias malabaricus (Characiformes, Erythrinidae) [PDF]

open access: yesFrontiers in Genetics, 2018
The Erythrinidae family (Teleostei: Characiformes) is a small Neotropical fish group with a wide distribution throughout South America, where Hoplias malabaricus corresponds to the most widespread and cytogenetically studied taxon. This species possesses
Alexandr Sember   +7 more
doaj   +5 more sources

Cytogenetic characterization of Hoplias malabaricus (Bloch, 1794) from the Ctalamochita River (Córdoba, Argentina): first evidence for southernmost populations of this species complex and comments on its biogeography [PDF]

open access: yesComparative Cytogenetics, 2017
Hoplias malabaricus (Bloch, 1794), a predatory freshwater fish with a wide distribution throughout South America, represents a species complex with seven well characterized karyomorphs at the cytogenetic level.
Diego Javier Grassi   +4 more
doaj   +4 more sources

Basic cytogenetics and physical mapping of 5S and 18S ribosomal genes in Hoplias malabaricus (Osteichthyes, Characiformes, Erythrinidae) from isolated natural lagoons: a conserved karyomorph along the Iguaçu river basin [PDF]

open access: yesComparative Cytogenetics, 2014
Erythrinidae include Neotropical teleost fish that are widely distributed in South America. Hoplias Gill, 1903 include two large groups: H. malabaricus Bloch, 1794 and H. lacerdae Miranda Ribeiro, 1908.
Gisele Gemi   +5 more
doaj   +2 more sources

Description of the Early Development of Hoplias intermedius (Günther, 1864) (Characiformes: Erythrinidae). [PDF]

open access: yesJ Morphol
This study provides the first description of the early development of Hoplias intermedius (Characiformes: Erythrinidae), from the embryonic to the juvenile stage. The morphological, meristic, and morphometric characterization contributes to understanding the ontogeny and developmental transitions of Neotropical fishes, supporting taxonomy, conservation,
de Souza MBV, Volpato RS, Bialetzki A.
europepmc   +2 more sources

Morphological and Histometric Alterations in Gonadal and Neural Tissues of Native and Non-Native Fishes From the Lower Doce River Basin in Southeastern Brazil. [PDF]

open access: yesAnat Histol Embryol
ABSTRACT The ichthyofauna of the lower Doce River basin has been exposed to multiple anthropogenic stressors. Among these, the collapse of the Fundão mining tailings dam in Mariana, Minas Gerais, Brazil, in 2015 resulted in massive fish mortality and widespread contamination of aquatic environments.
Marcon L   +8 more
europepmc   +2 more sources

Ithyoclinostomum dimorphum Diesing, 1850 (Digenea, Clinostomidae) in Hoplias malabaricus (Erythrinidae) with the fi rst report of infection of the eyes [PDF]

open access: yesHelminthologia, 2018
The present study investigated the occurrence of metacercariae of Ithyoclinostomum dimorphum in Hoplias malabaricus in the basin of the São Francisco River in the state of Minas Gerais (Brazil). Twenty-nine fish were examined in June 2012 during a survey
Chagas De Souza D.   +2 more
doaj   +2 more sources

Ecological Niche Modeling of <i>Hoplias malabaricus</i> (Characiformes, Erythrinidae) Under Climate Change Scenarios. [PDF]

open access: yesEcol Evol
This study employs ecological niche models (ENMs) to project current and future habitat suitability for a genetically validated lineage of Hoplias malabaricus, a widely distributed Neotropical freshwater predator. ABSTRACT Freshwater fish are highly vulnerable to climate change because they are restricted to inland waters and cannot readily disperse ...
Guimarães KLA   +2 more
europepmc   +2 more sources

Genomic Insights Into Carnivorous Fish in the Characiformes. [PDF]

open access: yesEcol Evol
This study employed comparative genomic approaches using 12 high‐quality Characiformes genomes (covering nine subfamilies) with zebrafish as an outgroup to explore the molecular mechanisms underlying the carnivorous adaptation of Characiformes. Expanded gene families, positively selected genes, and rapidly evolving genes in carnivorous species were ...
Zhao S   +10 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]

open access: yesJ Fish Biol
Abstract 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

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