The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays [PDF]
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]
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
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]
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]
Schneider CH +5 more
europepmc +2 more sources
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]
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]
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
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)
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

