Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin. [PDF]
PeerJ, 2021 South American freshwater ichthyofauna is taxonomically the most diverse on the planet, yet its diversity is still vastly underestimated. The Amazon basin alone holds more than half of this diversity.
Ximenes AM +4 more
europepmc +3 more sources
Multiple soluble malate dehydrogenase of Geophagus brasiliensis (Cichlidae, Perciformes) [PDF]
Genetics and Molecular Biology, 1998 A recent locus duplication hypothesis for sMDH-B* was proposed to explain the complex electrophoretic pattern of six bands detected for the soluble form of malate dehydrogenase (MDH, EC 1.1.1.37) in 84% of the Geophagus brasiliensis (Cichlidae ...
Aquino-Silva Maria Regina de +2 more
doaj +8 more sources
Caracterização seminal de carás (Geophagus brasiliensis - Cichlidae) induzidos artificialmente
Pesquisa Agropecuária Gaúcha, 2019 Um estudo foi realizado com o objetivo de avaliar as características seminais do cará Geophagus brasiliensis mantido em cativeiro com e sem indução hormonal.
Andréa Ferretto Rocha +4 more
doaj +4 more sources
Metal pollution assessment in a Brazilian hydroelectric reservoir: Geophagus brasiliensis as a suitable bioindicator organism [PDF]
Revista 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
Zoosystematics 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 +5 more sources
Temperature affects the hypoxia tolerance of neotropical Cichlid Geophagus brasiliensis [PDF]
Neotropical Ichthyology, 2018 Oxygen and temperature are the most limiting factors in aquatic environments. Several species are exposed to variations of these factors in water because of physical, chemical and biological processes.
Jéssica A. Pereira +5 more
doaj +3 more sources
Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions [PDF]
Neotropical Ichthyology, 2010 Among fishes, when residents and intruders fight, residents usually win, most likely because they value the residence more than intruders. We hypothesized that enriched environments increase the value of an area in dispute, causing a resident to more ...
Vivian Oliveira Kadry +1 more
doaj +4 more sources
Mesotrione herbicide promotes biochemical changes and DNA damage in two fish species [PDF]
Toxicology 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
Feeding convergence in South American and African zooplanktivorous cichlids Geophagus brasiliensis and Tilapia rendalli [PDF]
Environmental Biology of Fishes, 1991 Acara, #Geophagus brasiliensis$, and red-breasted bream, #Tilapia rendalli$, are important planktivorous cichlids in Southern Brazilian lakes and reservoirs. In laboratory experiments, I quantified behavior and selectivity of different sizes of these two
Lazzaro, Xavier
core +3 more sources
Revista 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 +5 more sources