Results 121 to 130 of about 557 (135)
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Journal of Fish Biology, 2016
This study used the hypervariable domain of the mitochondrial DNA (mtDNA) control region (CR) to assess the genetic divergence among native and invasive populations of Cichla kelberi, which is considered the first peacock cichlid introduced and established throughout Brazil and is among the most invasive populations of this genus worldwide. The maximum
A C P B, Marques +4 more
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This study used the hypervariable domain of the mitochondrial DNA (mtDNA) control region (CR) to assess the genetic divergence among native and invasive populations of Cichla kelberi, which is considered the first peacock cichlid introduced and established throughout Brazil and is among the most invasive populations of this genus worldwide. The maximum
A C P B, Marques +4 more
openaire +2 more sources
Biological Invasions, 2010
Prey naivete is proposed as one of the main reasons behind species extinctions attributed to invasive predators. This study examined whether the naivete hypothesis could explain extinctions after the introduction of peacock bass (Cichla kelberi) in Parana River, Brazil.
Katya E. Kovalenko +3 more
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Prey naivete is proposed as one of the main reasons behind species extinctions attributed to invasive predators. This study examined whether the naivete hypothesis could explain extinctions after the introduction of peacock bass (Cichla kelberi) in Parana River, Brazil.
Katya E. Kovalenko +3 more
openaire +1 more source
Hydrobiologia, 2009
The non-native peacock bass (Cichla kelberi) is causing freshwater fish extinctions in the tropical regions around the world, but there are very few studies on its interaction with native species. This study, based on a mesocosm experiment, examined direct and indirect effects of a non-native peacock bass on the native prey in Parana River, Brazil, and
Katya E. Kovalenko +4 more
openaire +1 more source
The non-native peacock bass (Cichla kelberi) is causing freshwater fish extinctions in the tropical regions around the world, but there are very few studies on its interaction with native species. This study, based on a mesocosm experiment, examined direct and indirect effects of a non-native peacock bass on the native prey in Parana River, Brazil, and
Katya E. Kovalenko +4 more
openaire +1 more source
Biological Invasions, 2008
In South America, the introduction of peacock-bass (Cichla), a voracious predator fish, has been an underestimated threat for native fish communities. Although this predator is widespread in many reservoirs, few studies have explored its impact on biodiversity.
Fernando Mayer Pelicice +1 more
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In South America, the introduction of peacock-bass (Cichla), a voracious predator fish, has been an underestimated threat for native fish communities. Although this predator is widespread in many reservoirs, few studies have explored its impact on biodiversity.
Fernando Mayer Pelicice +1 more
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Journal of Applied Ichthyology, 2012
Summary In the Neotropical cichlid Cichla kelberi the spermiogenesis appears to be of the cystic type and is characterized by gradual chromatin condensation in juxtaposed clusters, nuclear rotation (with the flagellum perpendicularly to the nucleus), and consequent nuclear fossa formation.
de Siqueira-Silva, D. H. +4 more
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Summary In the Neotropical cichlid Cichla kelberi the spermiogenesis appears to be of the cystic type and is characterized by gradual chromatin condensation in juxtaposed clusters, nuclear rotation (with the flagellum perpendicularly to the nucleus), and consequent nuclear fossa formation.
de Siqueira-Silva, D. H. +4 more
openaire +2 more sources
Ethnobiology and Conservation, 2021
Ethnoichthyology has been used to understand how humans perceive environmental changes, including species introductions. In Rio de Janeiro State, southeastern Brazil, fishers introduced juveniles of peacock bass Cichla kelberi in the Juturnaíba Reservoir in the 1990’s.
Paula Araujo Catelani +3 more
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Ethnoichthyology has been used to understand how humans perceive environmental changes, including species introductions. In Rio de Janeiro State, southeastern Brazil, fishers introduced juveniles of peacock bass Cichla kelberi in the Juturnaíba Reservoir in the 1990’s.
Paula Araujo Catelani +3 more
openaire +1 more source
Journal of Applied Ichthyology, 2009
Summary To evaluate the reproductive cycle and fecundity of tucunare´ (Cichla kelberi Kullander & Ferreira, 2006), 697 specimens were captured in Tres Marias Reservoir, Sao Francisco River, Brazil during 1994-1995 and 2005-2006. Reproductive activity was recorded throughout the sampling periods, with females exhibiting asynchronous oocyte development ...
F. T. Normando +6 more
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Summary To evaluate the reproductive cycle and fecundity of tucunare´ (Cichla kelberi Kullander & Ferreira, 2006), 697 specimens were captured in Tres Marias Reservoir, Sao Francisco River, Brazil during 1994-1995 and 2005-2006. Reproductive activity was recorded throughout the sampling periods, with females exhibiting asynchronous oocyte development ...
F. T. Normando +6 more
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Revista Brasileira de Engenharia de Pesca, 2008
Este estudo caracterizou a pesca do tucunaré-amarelo (Cichla kelberi) com iscas artificiais em um lago de Leme-SP. As maiores capturas ocorreram do final do verão ao começo do outono das 9 as 12 horas e das 13 as 15 horas com céu aberto e vento, sendo que as menores capturas ocorreram no inverno.
Leandro Muller Gomeiro +2 more
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Este estudo caracterizou a pesca do tucunaré-amarelo (Cichla kelberi) com iscas artificiais em um lago de Leme-SP. As maiores capturas ocorreram do final do verão ao começo do outono das 9 as 12 horas e das 13 as 15 horas com céu aberto e vento, sendo que as menores capturas ocorreram no inverno.
Leandro Muller Gomeiro +2 more
openaire +1 more source
Journal of Fish Biology, 2017
The first record of pughead deformity in a Neotropical freshwater fish not raised in captivity is provided, based on an adult male of Cichla kelberi introduced into an estuary of Rio de Janeiro State, south‐eastern Brazil. A general biological characterization of the specimen is provided and aspects of its aberrant anatomy are described.
P A, Catelani +4 more
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The first record of pughead deformity in a Neotropical freshwater fish not raised in captivity is provided, based on an adult male of Cichla kelberi introduced into an estuary of Rio de Janeiro State, south‐eastern Brazil. A general biological characterization of the specimen is provided and aspects of its aberrant anatomy are described.
P A, Catelani +4 more
openaire +2 more sources
Polychromatism in native populations of peacock basses Cichla kelberi and Cichla piquiti (Cichlidae)
Environmental Biology of Fishes, 2022Fernando Mayer Pelicice +2 more
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