Results 41 to 50 of about 774 (171)
This study aimed to assess the influence of the environment on fish health. Samples of Hoplias malabaricus and Geophagus brasiliensis, were collected from three different environments: area I was urban and areas II and III were rural.
Silvia Romão +4 more
doaj +1 more source
One of the metal detoxifying mechanisms that occurs in fish is metallothionein (MT) induction and metal binding. Hepatic MT induction has been well described, but biliary MT metal detoxification has only recently been described in fish. In this scenario,
Sylvia N Land +5 more
semanticscholar +1 more source
Metacercárias do tipo Neascus, um dos agentes causadores da doença dos pontos pretos, são descritas a partir de espécimes coletados de 33 espécimes de Geophagus brasiliensis coletados no rio do Peixe, Monte Verde, município de Juiz de Fora, Estado de ...
Adriano Reder de Carvalho +2 more
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GROWTH OF Geophagus brasiliensis REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES
The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass).
Leone de Souza MEDINA +3 more
openaire +2 more sources
The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays
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
Foram estudados 50 acarás Geophagus brasiliensis (Quoy e Gaimard, 1824) provenientes do rio Guandu, coletados próximo ・barragem da Estação de Tratamento de àgua (ETA) (22º48’32”S, 43º37’35”O), no Estado do Rio de Janeiro, no período de dezembro de 2004 ...
Rodney Kozlowiski de Azevedo +2 more
doaj +1 more source
: A new foraging tactic for the pearl cichlid, Geophagus brasiliensis, is described from underwater observations performed in a coastal stream of the Atlantic Forest, Southeastern Brazil.
Gabriel Raposo Silva de Souza +2 more
semanticscholar +1 more source
Cage fish farm causes the homogenization of wild fish diets of different sizes
We evaluated the influences of cage fish farm on the individual diet of Geophagus sveni, a wild species nonnative to the Paraná river basin, and hypothesized that, in areas where there are no cage fish farms (CT), differences in feeding occur between ...
Bruna Caroline Kotz Kliemann +5 more
doaj +1 more source
Massive exploitation of geological resources may lead to serious environmental problems due to the inadequate disposal of the processing wastes, which are potentially hazard to terrestrial and aquatic environments.
G. P. Venturoti +4 more
semanticscholar +1 more source
When establishing dominance residents have a greater likelihood to dominate intruders than vice versa, partially because the resident has more to loose that the intruder has to win. This is known as the prior residency effect.
Vincent Nijman, Boudewijn A. Heuts
doaj

