Results 41 to 50 of about 155 (121)

Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development

Neotropical Ichthyology
The present study describes the testicular maturation phases (associating the germ cells development and the morphological changes suffered by the germinal epithelium along the whole year), and the testicular morphology in the yellow peacock bass Cichla ...
Diógenes Henrique de Siqueira-Silva, Carlos Alberto Vicentini, Alexandre Ninhaus-Silveira, Rosicleire Veríssimo-Silveira   +3 more
doaj   +1 more source

First record of Peacock bass Cichla kelberi Kullander & Ferreira, 2006 in the Brazilian Pantanal

BioInvasions Records, 2015
Biological invasions impact many communities and ecosystems around the world. Thus, the detection of harmful species is particularly important. In this study, the occurrence of Peacock bass Cichla kelberi in the Brazilian Pantanal was registered. The main stream of the Paraguay River, the Padre Inacio stream and their connected lakes were sampled, in ...
openaire   +1 more source

Parasitas de populações naturais e artificiais de tucunaré (Cichla spp.) Parasites of natural and artificial populations of Cichla spp.

Revista Brasileira de Parasitologia Veterinária, 2009
Os ciclídeos, peixes economicamente importantes na região, foram coletados no médio rio Negro (Cichla orinocensis, C. monoculus e C. temensis) e na iIlha da Marchantaria (C. monoculus), no Amazonas e em três açudes do Piauí (C. kelberi). Para verificar a
Cleusa Suzana Oliveira de Araujo, Maria Claudene Barros, Ana Lucia da Silva Gomes, Angela Maria Bezerra Varella, Gabriela de Moraes Viana, Nathalia Pereira da Silva, Elmary da Costa Fraga, Sanny Maria Sampaio Andrade   +7 more
doaj   +1 more source

Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla)

Neotropical Ichthyology
An important step in invasive biology is to assess biological variables that could be used to predict invasion success. The study of genetics, evolution, and interactions of invasive and native species in invaded ranges provides a unique opportunity to ...
Daniel C. Carvalho, Denise A. A. Oliveira, Iracilda Sampaio, Luciano B. Beheregaray   +3 more
doaj   +1 more source

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

Neotropical Ichthyology
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   +1 more source

Preliminary study on the application of radio-telemetry techniques to evaluate movements of fish in the Lateral canal at Itaipu Dam, Brazil

Neotropical Ichthyology
A preliminary study on the application of radio-telemetry techniques to describe the movements of fish in a bypass channel at Itaipu Dam (Paraná River), known as "Canal da Piracema," was carried out between January and February of 2004.
Lisiane Hahn, Karl English, Joachim Carosfeld, Luiz Gustavo Martins da Silva, João Dirço Latini, Angelo Antônio Agostinho, Domingo Rodriguez Fernandez   +6 more
doaj   +1 more source

Influence of the river flow on the structure of fish assemblage along the longitudinal gradient from river to reservoir

Zoologia (Curitiba), 2010
Changes in fish assemblage structure along a longitudinal gradient of the Paraíba do Sul River and Funil reservoir were studied to detect distribution patterns and the seasonal influence of the inflowing river.
Alex Braz Iacone Santos, Bianca de Freitas Terra, Francisco Gerson Araújo   +2 more
doaj   +1 more source

Parasite Community of Cichla kelberi (Perciformes, Cichlidae) in the Três Marias Reservoir, Minas Gerais, Brazil

Revista Brasileira de Parasitologia Veterinária
A total of 112 specimens of yellow peacock bass, Cichla kelberi, were collected in the Três Marias Reservoir, upper São Francisco River, State of Minas Gerais, between 2004 and 2005.
Michelle Daniele Santos-Clapp, Marilia Carvalho Brasil-Sato   +1 more
doaj   +1 more source

Otolith morphometry for the determination of the theoretical growth curve of fish

Boletim do Instituto de Pesca
During the period from November 2019 to August 2021, a total of 43 specimens of Leporinus friderici, 18 of Prochilodus lineatus, 17 of Hoplias intermedius and 8 of Cichla kelberi were caught in the Verde River basin (Mato Grosso do Sul, Brazil) using ...
Eloi Bispo Bezerra Neto, Charles Hanry Faria Junior, Fabrício Berton Zanchi, Raniere Garcez Costa Sousa   +3 more
doaj   +1 more source

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

Neotropical Ichthyology
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, Horácio Ferreira Júlio Junior, Evanilde Benedito   +2 more
doaj   +1 more source