Results 1 to 10 of about 255 (151)

Three new species of the ‘ Geophagus’ brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini) [PDF]

open access: yesZoosystematics and Evolution, 2018
Morphological characters and phylogenetic trees generated by analyses of segments of two mitochondrial genes cytochrome b and cytochrome c oxidase I support recognition of three new species of the ‘Geophagus’ brasiliensis species group from coastal ...
José L.O. Mattos, Wilson J.E.M. Costa
doaj   +10 more sources

Metal pollution assessment in a Brazilian hydroelectric reservoir: Geophagus brasiliensis as a suitable bioindicator organism [PDF]

open access: yesRevista Ambiente & Água, 2017
Vossoroca is a reservoir in the Brazilian state of Paraná. Although it is located near big cities and can be used as a human water supply, it has remained unstudied. Concentrations of toxic metals and arsenic in sediments, water, liver, gills, and muscle
Halina Binde Doria   +3 more
doaj   +4 more sources

Mesotrione herbicide promotes biochemical changes and DNA damage in two fish species [PDF]

open access: yesToxicology Reports, 2015
Mesotrione is one of the new herbicides that have emerged as an alternative after the ban of atrazine in the European Union. To our knowledge, any work using genetic or biochemical biomarkers was performed in any kind of fish evaluating the toxicity of ...
L.D.S. Piancini   +3 more
doaj   +2 more sources

O papel de Ancyrocephalinae (Monogenea: Dactylogyridae), parasito de Geophagus brasiliensis (Pisces: Cichlidae), como indicador ambiental The role of Ancyrocephalinae (Monogenea: Dactylogyridae), parasite of Geophagus brasiliensis (Pisces: Cichlidae), as an environmental indicator

open access: yesRevista Brasileira de Parasitologia Veterinária, 2009
As variações nas populações de parasitos em peixes podem ser indicadoras de alguma alteração ambiental. Tendo por objetivo o estudo da variação do parasitismo por Ancyrocephalinae em Geophagus brasiliensis, foram comparados dois reservatórios de ...
Rubens Riscala Madi, Marlene Tiduko Ueta
doaj   +2 more sources

Nematodes as indicators of environmental changes in a river with different levels of anthropogenic impact [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
Considering that changes in the biodiversity of parasite communities can be used as indicators of ecosystem health, the aim of this study was to investigate the potential use of Geophagus brasiliensis parasites as bioindicators of environmental changes ...
ATSLER LUANA LEHUN   +2 more
doaj   +1 more source

The Cichlidae fish Geophagus brasiliensis (Quoy & Gaimard, 1824) has suitability as a sentinel species for changes caused by xenobiotics?

open access: yesActa Scientiarum: Biological Sciences, 2022
Industrial wastewater and agricultural practices are among the main activities discharging organic pollutants, such as Polychlorinated biphenyl (PCB) congeners and organochlorine insecticides (e.g.
Claudio Nona Morado   +3 more
doaj   +1 more source

On some trematodes parasites of fishes from Paraná River [PDF]

open access: yesBrazilian Journal of Biology, 2001
Crassicutis cichlasomae Manter, 1936 is redescribed for the first time in South America and from a new host: Geophagus brasiliensis (Cichlidae). Iheringtrema iheringi Travassos, 1948 is redescribed for the first time since its original description from ...
B. M. M. FERNANDES, A. KOHN
doaj   +1 more source

Metacercariae of Diplostomum compactum Lutz, 1928 (Trematoda, Diplostomidae) in the eyes of acara Geophagus brasiliensis Quoy & Gaimard, 1824 (Teleostei, Cichlidae) from Barra Bonita Reservoir - São Paulo, Brazil Metacercária do Diplostomum compactum Lutz, 1928 (Trematoda: Diplostomidae) em olhos de acará Geophagus brasiliensis Quoy & Gaimard, 1824 (Teleostei: Cichlidae) no reservatório de Barra Bonita - São Paulo

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
Relata-se a ocorrência de metacercárias de Diplostomum compactum (Trematoda: Diplostomidae) infectando Geophagus brasiliensis (Teleostei: Cichlidae) do reservatório de Barra Bonita, rio Tietê, estado de São Paulo, Brasil. As metacercárias foram coletadas
J.L.C. Novaes   +3 more
doaj   +1 more source

Soluble malate dehydrogenase of Geophagus brasiliensis (Cichlidae, Perciformes): isolated isoforms and kinetics properties

open access: yesGenetics and Molecular Biology, 2008
Kinetic properties and thermal stabilities of Geophagus brasiliensis skeletal muscle unfractionated malate dehydrogenase (MDH, EC 1.1.1.37) and its isolated isoforms were analyzed to examine a possible sMDH-B* locus duplication in a fixation process ...
Maria Regina de Aquino-Silva   +4 more
doaj   +1 more source

Sphincterodiplostomum musculosum (Digenea, Diplostomidae) in Geophagus brasiliensis (Perciformes, Cichlidae) collected in a lake at Dois Córregos, São Paulo, Brazil

open access: yesCiência Rural, 2015
: Geophagus brasiliensis is a freshwater cichlid distributed throughout the whole South America. It is a territorial fish, generally omnivorous, which preferentially inhabits the bottom of water bodies.
Rodrigo Severiano Rocha   +4 more
doaj   +1 more source

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