Results 21 to 30 of about 247 (152)
Nematodes as indicators of environmental changes in a river with different levels of anthropogenic impact [PDF]
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
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
A meta‐analytic review of monoterpene for fish anaesthesia
Abstract The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS‐222 is the most used synthetic anaesthetic but some limitations and side effects have been reported.
Luís Félix +3 more
wiley +1 more source
The success generalist species in urban systems is often related to a plastic diet and feeding‐related traits that allow them to take advantage of a variety of food subsidies provided by humans in cities. The classification of a species as generalist is commonly based on mean estimates of diet and feeding traits.
Piatã Marques +3 more
wiley +1 more source
Abstract The visual system of vertebrates has greatly contributed to our understanding of how different molecular mechanisms shape adaptive phenotypic diversity. Extensive work on African cichlid fishes has shown how variation in opsin gene expression mediates diversification as well as convergent evolution in colour vision.
Julián Torres‐Dowdall +3 more
wiley +1 more source
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
On some trematodes parasites of fishes from Paraná River [PDF]
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
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
: 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
A metacercária de Neascus sp., causadora da doença dos pontos pretos, é descrita em espécimes de Geophagus brasiliensis coletados no Brasil. Entre março e maio de 2006, foram capturados 33 espécimes de G.
Adriano Reder Carvalho +2 more
doaj +1 more source

