Results 1 to 10 of about 128 (103)

Comparative cytogenetic of six species of Amazonian Peacock bass (Cichla, Cichlinae): intrachromosomal variations and genetic introgression among sympatric species [PDF]

open access: yesComparative Cytogenetics, 2020
Cytogenetic data for the genus Cichla Bloch et Schneider, 1801 are still very limited, with only four karyotype descriptions to date. The sum of the available cytogenetic information for Cichla species, points to a maintenance of the diploid number of 48
Janice Quadros   +6 more
doaj   +4 more sources

Genetic diversity in Cichla piquiti and cross-amplification for Cichla kelberi in the Serra da Mesa reservoir, Goiás, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2022
Species Cichla piquiti and Cichla kelberi are found in the Serra da Mesa reservoir, Goiás and are sedentary with diurnal habits. This study aimed to evaluate the magnitude and distribution of genetic variability in subpopulations of C.
Ruan Carlos Pires Faquim   +4 more
doaj   +3 more sources

Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil [PDF]

open access: yesGenetics and Molecular Biology, 2009
A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in ...
Daniel Cardoso de Carvalho   +6 more
doaj   +2 more sources

Climate change may increase the suitable habitats for invasive freshwater cichlids in a Neotropical basin [PDF]

open access: yesScientific Reports
Although climate change may facilitate the spread of invasive alien species (IAS), research assessing this link remains limited. Recognizing suitable habitats where IAS have been introduced is crucial for biodiversity conservation and ecosystem ...
Cristian Martínez-González   +4 more
doaj   +2 more sources

Changes in ecosystem functions generated by fish populations after the introduction of a non-native predator (Cichla kelberi) (Perciformes: Cichlidae)

open access: yesNeotropical Ichthyology, 2021
The introduction of non-native predators is a matter of great concern, but their impacts on ecosystem functions remain poorly understood. We investigated how changes in fish diversity following the invasion of Cichla kelberi affected ecosystem functions ...
Luiza Bangoim Leal   +5 more
doaj   +4 more sources

Reduced genetic diversity and the success of the invasive peacock bass (Cichliformes: Cichlidae)

open access: yesBrazilian Journal of Biology, 2021
Several species of Cichla successfully colonized lakes and reservoirs of Brazil, since the 1960’s, causing serious damage to local wildlife. In this study, 135 peacock bass were collected in a reservoir complex in order to identify if they represented a ...
S. C. S. Luz   +7 more
doaj   +1 more source

Coexistence of endemic peacock basses (Cichla) in a Neotropical reservoir (Cichlidae: Cichliformes) [PDF]

open access: yesNeotropical Ichthyology, 2022
Peacock basses (genus Cichla) are predatory fish widely distributed across the Amazon, where two or more species normally coexist in a same drainage. The mechanisms that allow coexistence remain poorly understood, although these species share a number of
Geovana de Souza Andrade   +1 more
doaj   +1 more source

Metazoan parasite fauna of two peacock-bass cichlid fish in Brazil [PDF]

open access: yesCheck List, 2013
A parasitological study of two freshwater cichlid fish of the genus Cichla (C. kelberi and C. piquiti) from six different aquatic ecosystems in Brazil was performed. Based on the survey, a checklist of the component community of the metazoan parasites of
Fabio Yamada, Ricardo Takemoto
doaj   +3 more sources

Spar genetic analysis of two invasive species of Cichla (Tucunaré) (Perciformes: Cichlidae) in the Paraná river basin - doi: 10.4025/actascibiolsci.v33i1.4855

open access: yesActa Scientiarum: Biological Sciences, 2011
The introduction of exotic species in lake ecosystems has been greatly highlighted in the literature worldwide. Since introduction may threaten diversity of native fish, the issue turns up to be of paramount importance.
Giovanna Caputo Almeida-Ferreira   +3 more
doaj   +1 more source

Fish diversity in the rivers that drain the Baixada Maranhense and the Mearim basin in northeastern Brazil

open access: yesBrazilian Journal of Biology, 2023
The Baixada Maranhense Environmental Protection Area of the Brazilian state of Maranhão encompasses a biologically rich region that includes the basins of four principal rivers, the Mearim, Pericumã, Pindaré, and Turiaçu, which form a complex of wetlands.
D. Limeira-Filho   +10 more
doaj   +1 more source

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