Results 21 to 30 of about 557 (135)

The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays [PDF]

open access: yesNeotropical Ichthyology, 2015
One hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River.
Domingos Garrone-Neto, Ivan Sazima
doaj   +3 more sources

Reproduction of Cichla kelberi Kullander and Ferreira, 2006 introduced into an artificial lake in southeastern Brazil [PDF]

open access: yesBrazilian Journal of Biology, 2009
The objective of this study was to characterize the reproduction of Cichla kelberi in an artificial lake, located in the municipality of Leme, in the state of São Paulo, Brazil. Breeding occurred in spring, and summer.
LM. Gomiero   +2 more
doaj   +5 more sources

Seasonal and ontogenetic variations in the diet of Cichla kelberi Kullander and Ferreira, 2006 introduced in an artificial lake in southeastern Brazil

open access: yesBrazilian Journal of Biology, 2010
The diet of Cichla kelberi introduced in an artificial lake in Leme-SP was predominantly composed of common fish species (Oreochromis niloticus and C. kelberi). In the spring and summer, the most consumed item was O. niloticus.
LM Gomiero, GA Villares Junior, F Naous
doaj   +5 more sources

Rapid morphological change in multiple cichlid ecotypes following the damming of a major clearwater river in Brazil. [PDF]

open access: yesEvol Appl, 2020
Abstract While anthropogenic disturbances can have damaging effects on biodiversity, they also offer an opportunity to understand how species adapt to new environments and may even provide insights into the earliest stages of evolutionary diversification. With these topics in mind, we explored the morphological changes that have occurred across several
Gilbert MC   +3 more
europepmc   +2 more sources

Evolutionary dynamics of retrotransposable elements Rex1, Rex3 and Rex6 in neotropical cichlid genomes. [PDF]

open access: yesBMC Evol Biol, 2013
Schneider CH   +5 more
europepmc   +2 more sources

Relação peso-comprimento e fator de condição de Cichla kelberi (Perciformes, Cichlidae) introduzidos em um lago artificial no Sudeste brasileiro = Length-weight relationship and condition factor for Cichla kelberi (Perciforms, Cichlidae) introduced in an artificial lake, southeastern Brazil

open access: yesActa Scientiarum: Biological Sciences, 2008
Analisou-se a relação peso-comprimento e o fator de condição de Cichla kelberi introduzido em um lago artificial do Sudeste brasileiro. Imaturos, fêmeas e machos possuem padrões diferentes quanto à relação peso-comprimento e quanto às variações sazonais ...
Leandro Muller Gomiero   +2 more
doaj   +1 more source

Invasive non-native species of fish in upper Paraná river Basin, Brazil: variations of caloric content in Cichla kelberi [PDF]

open access: yesNeotropical Ichthyology, 2012
The allocation of assimilated energy may be influenced by seasonal changes, growth, and reproductive cycle of fish, food consumption and environmental conditions.
Luis Alberto Espínola   +2 more
doaj   +6 more sources

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data. [PDF]

open access: yesCladistics
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Vieira Alves P   +7 more
europepmc   +2 more sources

Featuring the ovarian morphological of Cichla kelberi Kullander & Ferreira, 2006 introduced in a Basin adjacent to the Lençóis Maranhenses National Park, Northeastern Brazil

open access: yesBrazilian Journal of Biology
Peacock bass (Ciclha kelberi) has been introduced in reservoirs in Brazil; however, information about its reproductive aspects and gonadal maturation remains scarce.
D. C. S. Mendes   +6 more
doaj   +2 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

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