Results 1 to 10 of about 188 (144)

Redescrição de Genidens barbus (Lacépède, 1803) e Genidens machadoi (Miranda-Ribeiro, 1918), Bagres Marinhos (Siluriformes, Ariidae) do Atlântico Sul Ocidental [PDF]

Papeis Avulsos De Zoologia, 2005
A variação no padrão das placas de dentes vômero-palatinas de Genidens barbus e Genidens machadoi é revista e as espécies redescritas com base na análise de 46 caracteres morfológicos.

exaly   +7 more sources

The emergence of pathogens on fish in an impacted estuary and the role of non-native piranhas in a potential bacterial infectious outbreak. [PDF]

J Fish Biol
Abstract As many tropical aquatic ecosystems worldwide, the Doce River estuary (DRE, southeastern Brazil) has increasingly faced multiple anthropogenic threats, including deforestation, mining, species introduction and water management. The 2015 collapse of the Fundão iron ore tailings dam severely changed water properties and increased heavy metal ...
Andrades R, Guabiroba HC, Bastos KV, Rodrigues VLA, Santos MRD, Arpini CM, Flecher MC, Pichler HA, Vilar CC, Hostim-Silva M, Joyeux JC.   +10 more
europepmc   +2 more sources

Contamination and oxidative stress biomarkers in estuarine fish following a mine tailing disaster [PDF]

PeerJ, 2020
Background The Rio Doce estuary, in Brazil, was impacted by the deposition of iron mine tailings, caused by the collapse of a dam in 2015. Based on published baseline datasets, the estuary has been experiencing chronic trace metal contamination effects ...
Fabrício Â. Gabriel, Rachel Ann Hauser-Davis, Lorena Soares, Ana Carolina A. Mazzuco, Rafael Christian Chavez Rocha, Tatiana D. Saint Pierre, Enrico Saggioro, Fabio Verissimo Correia, Tiago O. Ferreira, Angelo F. Bernardino   +9 more
doaj   +3 more sources

Virulence-Associated Genes and Antimicrobial Resistance of Aeromonas hydrophila Isolates from Animal, Food, and Human Sources in Brazil. [PDF]

Biomed Res Int, 2020
Aeromonads are natural inhabitants of aquatic environments and may be associated with various human or animal diseases. Its pathogenicity is complex and multifactorial and is associated with many virulence factors. In this study, 110 selected Aeromonas hydrophila isolates isolated from food, animals, and human clinical material from 2010 to 2015 were ...
Roges EM, Gonçalves VD, Cardoso MD, Festivo ML, Siciliano S, Berto LH, Pereira VLA, Rodrigues DDP, de Aquino MHC.   +8 more
europepmc   +2 more sources

Evaluation of a Brain Acetylcholinesterase Extraction Method and Kinetic Constants after Methyl-Paraoxon Inhibition in Three Brazilian Fish Species. [PDF]

PLoS ONE, 2016
Acetylcholinesterase (AChE) is an important enzyme in the control of the neuronal action potential and sensitive to organophosphate inhibition. Brain fish AChE is less sensitive to organophosphate inhibition than AChE from terrestrial animals, although ...
A P Freitas, C R Santos, P N Sarcinelli, M V Silva Filho, R A Hauser-Davis, R M Lopes   +5 more
doaj   +2 more sources

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]

Ecol Evol
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S, Raoult V, Slip DJ, Mas F, Laporta M, Pereyra I, Silveira S, Harcourt RG.   +7 more
europepmc   +2 more sources

Trends in Medicinal Uses of Edible Wild Vertebrates in Brazil. [PDF]

Evid Based Complement Alternat Med, 2017
The use of food medicines is a widespread practice worldwide. In Brazil, such use is often associated with wild animals, mostly focusing on vertebrate species. Here we assessed taxonomic and ecological trends in traditional uses of wild edible vertebrates in the country, through an extensive ethnobiological database analysis. Our results showed that at
Alves RRN, Oliveira TPR, Oliveira TPR, Medeiros MFT.   +3 more
europepmc   +2 more sources

Wild animals used as food medicine in Brazil. [PDF]

Evid Based Complement Alternat Med, 2013
The connection between eating and healing is common in traditional folk medical systems, and the multiple possibilities resulting from the combination of biodiversity and culture confer a wealth and complexity in terms of knowledge of the flora and fauna as to their potential as food medicine.
Alves RR, Oliveira TP, Rosa IL.
europepmc   +2 more sources

Ichthyofauna used in traditional medicine in Brazil. [PDF]

Evid Based Complement Alternat Med, 2012
Fish represent the group of vertebrates with the largest number of species and the largest geographic distribution; they are also used in different ways by modern civilizations. The goal of this study was to compile the current knowledge on the use of ichthyofauna in zootherapeutic practices in Brazil, including ecological and conservational commentary
El-Deir AC, Collier CA, de Almeida Neto MS, Silva KM, Policarpo Ida S, Araújo TA, Alves RR, de Albuquerque UP, de Moura GJ.   +8 more
europepmc   +2 more sources

Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family [PDF]

Genetics and Molecular Biology, 2010
Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped.
Mauro Nirchio, Emanuel Ricardo Monteiro Martinez, Fausto Foresti, Claudio Oliveira   +3 more
doaj   +2 more sources