Results 171 to 180 of about 1,784 (198)

The hemoglobin of Geophagus brasiliensis (cichlidae)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1991
Abstract 1. 1. The hemoglobin of Geophagus brasiliensis was submitted to electrophoresis on starch gel and agar-starch on microscopic slides. In both supporting media five major components were observed. 2. 2. Stripped hemoglobin showed normal Bohr shift (Δlog p 50 /Δ pH = θ = −0.661 ).
Arno R. Schwantes, Grant R. Bartlett, Maria Luiza B. Schwantes   +2 more
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Bioconcentration and bioaccumulation of metal in freshwater Neotropical fish Geophagus brasiliensis

Environmental Science and Pollution Research, 2014
From the concentration in water and sediments, bioconcentration and bioaccumulation of copper (Cu), manganese (Mn), zinc (Zn), iron (Fe), cobalt (Co), cadmium (Cd), chrome (Cr), silver (Ag), lead (Pb), nickel (Ni), aluminum (Al), and arsenic (As) were determined in the gills, liver, and muscles of Geophagus brasiliensis in the Alagados Reservoir, Ponta
Carmen Lúcia, Voigt, Cleber Pinto, da Silva, Halina Binde, Doria, Marco Antônio Ferreira, Randi, Ciro Alberto, de Oliveira Ribeiro, Sandro Xavier, de Campos   +5 more
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Geophagus brasiliensis

2017
Published as part of Koerber, Stefan, Litz, Thomas O. & Mirande, Juan Marcos, 2017, CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina., pp.
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
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Environmentally related life history variations in Geophagus brasiliensis

Journal of Fish Biology, 2002
The hypothesis of environmentally related life history variations between two Geophagus brasiliensis populations was investigated by comparing riverine and lacustrine populations. Mean standard length and length at maturity were higher in the lagoon population.
R. Mazzoni, R. Iglesias‐Rios
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Influence of temperature on larval ontogenesis of Geophagus brasiliensis (Quoy & Gaimard, 1824) (Pisces: Cichlidae)

Zygote, 2021
SummaryStudies on the larval development of fish are essential for conservation and improvements in cultivation techniques. Geophagus brasiliensis popularly known as Cará has potential as a fish of interest in ornamental aquaculture. Wild adults of G. brasiliensis were kept in an aquarium for spontaneous reproduction.
Marcelo Duarte Ventura Melo, Alessandro Loureiro Paschoalini, Nilo Bazzoli   +2 more
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Genotoxic Damages and Bioaccumulation of Cadmium in Geophagus Brasiliensis (Quoy & Gaimard, 1824)

Bulletin of Environmental Contamination and Toxicology, 2019
The toxic effects of cadmium (Cd) in Geophagus brasiliensis was investigated in the present study. For this, 32 specimens of G. brasiliensis were exposed in individual aquaria to Cd concentrations (0.00, 0.01, 0.07, and 0.67 mg/L) for 14 days. The micronuclei test did not detect the genotoxic damage at the studied concentrations and time of exposure ...
Emanuelle Carneiro Queiroz, Bruno Ferreira da Silva, Rômulo Victor Salla, Jean Pierre Louzada Ramos, Karla Giavarini Gnocchi, Adriana Regina Chippari-Gomes   +5 more
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Trends of karyotypical evolution in the pearl cichlid, Geophagus brasiliensis, from southern Brazil

Zoology, 2013
Chromosomal rearrangements such as inversions can facilitate speciation even in the presence of gene flow. The present study aims to analyze the karyotypic variation in six populations of Geophagus brasiliensis from southern Brazil. All specimens showed 2n=48 chromosomes, but three karyotypes were found to have one, two or three pairs of submetacentric
Giselle X, Perazzo, Rafael B, Noleto, Marcelo R, Vicari, Adriana, Gava, Marta M, Cestari   +4 more
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Toxic effects of ornamental stone processing waste effluents on Geophagus brasiliensis (Teleostei: Cichlidae)

Environmental Toxicology and Pharmacology, 2019
The ornamental stone industry generates considerable amounts of waste (OSPW), which may eventually reach natural environments and impact the local ecosystem. The aim of this study was to compare the toxic effects of two OSPW effluents in Geophagus brasiliensis: i) leachate effluent from a lagoon in an OSPW landfill (LE) and ii) decanted effluent from ...
Graciele Petarli Venturoti, Johara Boldrini-França, Walace Pandolpho Kiffer, Aline Priscila Francisco, Aline Silva Gomes, Levy Carvalho Gomes   +5 more
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Temperature affects the toxicity of lead-contaminated food in Geophagus brasiliensis (QUOY & GAIMARD, 1824)

Environmental Toxicology and Pharmacology, 2019
Lead is toxic to fish, and its toxicity can be aggravated by the water temperature. Geophagus brasiliensis populations are geographically widespread and thus live in areas with different temperatures. The objective of this work was to evaluate the effects of lead-contaminated feed in fish (Geophagus brasiliensis) exposed to different temperatures.
Julia Merçon, Tatiana Miura Pereira, Larissa Souza Passos, Taciana Onesorge Lopes, Gabriel Coppo, Bianca Barbosa, Dandara Cabral, Levy Carvalho Gomes   +7 more
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Liquid Storage of Geophagus brasiliensis semen in the Presence of Different Extenders.

Cryo letters, 2021
In order to preserve the genetic diversity of cichlid fish in gene banks, it is necessary to use certain extenders to maintain the integrity of spermatozoa cells during cooling.To evaluate the effects of different extenders on the quality parameters of cooled semen of Geophagus brasiliensis.Semen samples were collected from seven adult fish and diluted
J S, Caldas, C D, Corcini, E F, Silva, J C, Silva, T F, Cardoso, I B, Acosta, M R C, Figueiredo, A S, Varela Junior   +7 more
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