Results 111 to 120 of about 477 (128)
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Water Research, 2017
This study investigated the acute toxicity of nickel (Ni) to cardinal tetra (Paracheirodon axelrodi), within the three main water types of the Amazon basin: black (Rio Negro), white (Rio Solimões) and clear (Rio Tapajós) during the wet and dry season at pH 7 (representative of white and clear rivers) and pH 4 (representative of black waters).
Aleicia Holland +4 more
semanticscholar +4 more sources
This study investigated the acute toxicity of nickel (Ni) to cardinal tetra (Paracheirodon axelrodi), within the three main water types of the Amazon basin: black (Rio Negro), white (Rio Solimões) and clear (Rio Tapajós) during the wet and dry season at pH 7 (representative of white and clear rivers) and pH 4 (representative of black waters).
Aleicia Holland +4 more
semanticscholar +4 more sources
Aquatic Toxicology, 2016
Copper at high concentrations is an ionoregulatory toxicant in fish and its toxicity is known to be strongly modulated by the water chemistry. The toxicity of Cu to the tropical fish cardinal tetra (Paracheirodon axelrodi) was investigated in waters from two major rivers of the Amazon watershed: the Rio Negro (filtered
Anne Crémazy +6 more
semanticscholar +4 more sources
Copper at high concentrations is an ionoregulatory toxicant in fish and its toxicity is known to be strongly modulated by the water chemistry. The toxicity of Cu to the tropical fish cardinal tetra (Paracheirodon axelrodi) was investigated in waters from two major rivers of the Amazon watershed: the Rio Negro (filtered
Anne Crémazy +6 more
semanticscholar +4 more sources
Hydrobiologia, 2007
The cardinal tetra (Paracheirodon axelrodi) is the most abundant species of the Brazilian ornamental fish trade, constituting more than 80% of the ornamental fish collected in the middle Negro River basin. Stable isotope analyses were used to identify the autotrophic carbon sources and trophic position for the cardinal in relation to the plant groups ...
B. Marshall +2 more
semanticscholar +3 more sources
The cardinal tetra (Paracheirodon axelrodi) is the most abundant species of the Brazilian ornamental fish trade, constituting more than 80% of the ornamental fish collected in the middle Negro River basin. Stable isotope analyses were used to identify the autotrophic carbon sources and trophic position for the cardinal in relation to the plant groups ...
B. Marshall +2 more
semanticscholar +3 more sources
Journal of Fish Biology, 2007
Here, a combination of a DNA screening technique, direct sequencing and cloning was used to carry out a large‐scale assessment of intron variability in cardinal tetras – the first to be conducted for an Amazonian forest fish. To the best of the authors’ knowledge, the levels of DNA variability reported in this study are the highest ever documented for ...
Cooke, G M +1 more
openaire +2 more sources
Here, a combination of a DNA screening technique, direct sequencing and cloning was used to carry out a large‐scale assessment of intron variability in cardinal tetras – the first to be conducted for an Amazonian forest fish. To the best of the authors’ knowledge, the levels of DNA variability reported in this study are the highest ever documented for ...
Cooke, G M +1 more
openaire +2 more sources
Freshwater Biology, 2009
Summary1. Historic and extant landscape structures and environmental conditions are known to influence phylogeographic patterns and population histories in organisms from Amazonia. Recent work suggests that events of the Tertiary Period have played a significant role in generating biodiversity in this exceptionally rich but understudied region. However,
G. M. Cooke, Chao Ning, L. Beheregaray
semanticscholar +3 more sources
Summary1. Historic and extant landscape structures and environmental conditions are known to influence phylogeographic patterns and population histories in organisms from Amazonia. Recent work suggests that events of the Tertiary Period have played a significant role in generating biodiversity in this exceptionally rich but understudied region. However,
G. M. Cooke, Chao Ning, L. Beheregaray
semanticscholar +3 more sources
Molecular Ecology Notes, 2004
AbstractThe cardinal tetra Paracheirodon axelrodi is a very popular aquarium fish and the most important ornamental fishery resource for riverine communities inhabiting the Rio Negro floodplain in central Amazonia. Here we describe the isolation and characterization of 14 microsatellite DNA loci for cardinal tetras. Number of alleles and heterozygosity
L. B. BEHEREGARAY +4 more
openaire +1 more source
AbstractThe cardinal tetra Paracheirodon axelrodi is a very popular aquarium fish and the most important ornamental fishery resource for riverine communities inhabiting the Rio Negro floodplain in central Amazonia. Here we describe the isolation and characterization of 14 microsatellite DNA loci for cardinal tetras. Number of alleles and heterozygosity
L. B. BEHEREGARAY +4 more
openaire +1 more source