Results 11 to 20 of about 1,113 (189)

Genidens barbus (Lacepède, 1803) [PDF]

, 2010
Fil: Nadalin, Diego Oscar. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: López, Hugo Luis. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
López, Hugo Luis, Nadalin, Diego Oscar
core   +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

Sexual dimorphism in the catfish Genidens genidens (Siluriformes: Ariidae) based on otolith morphometry and relative growth [PDF]

Neotropical Ichthyology, 2019
Genidens genidens is a species susceptible to population declines in view of their reproductive biology peculiarities. Morphometric differences between sexes are observed in the literature, and these differences should also be evident in otolith ...
Thaís Rodrigues Maciel, André Martins Vaz-dos-Santos, José Ricardo de Souza Barradas, Marcelo Vianna   +3 more
doaj   +3 more sources

How Far Upstream: A Review of Estuary-Fresh Water Fish Movements in a Large Neotropical Basin [PDF]

Frontiers in Marine Science, 2019
The present study comprises the first systematic analysis of the limits of upstream movement by some fish species that use the estuarine area of the Patos Lagoon basin in southern Brazil.
Nelson Ferreira Fontoura, Uwe Horst Schulz, Thaís Paz Alves, Thiago Cesar Lima Silveira, Joana Jordão Pereira, Débora Alessandra Antonetti   +5 more
doaj   +7 more sources

Biometrie sexual and ontogenetic dimorphism on the marine catfish Genidens genidens (Siluriformes, Ariidae) in a tropical estuary

Latin American Journal of Aquatic Research, 2015
This paper aims to study the ontogenetic sexual dimorphism of Genidens genidens in Guanabara Bay, southeastern coast of Brazil. Altogether 378 specimens were anayzed (233 females and 145 males) with total length ranging from 13.3 to 43.5 cm.
Larissa G Paiva, Luana Prestrelo, Kiani M Sant' Anna, Marcelo Vianna   +3 more
doaj   +3 more sources

Morphology of sagitta, lapillus and asteriscus of Patagonian Genidens barbus

Marine and Fishery Sciences, 2022
Otoliths are calcium carbonate structures, deposited as aragonite, located in the inner ear of bony fish. In recent years, they have become a useful tool for the determination of fish species, trophic content, age studies, and the identification of fish
María D. González Dubox, Sofía Córdoba Gironde, Laura S. López Greco, Andrea D. Tombari   +3 more
doaj   +2 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

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

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil [PDF]

Neotropical Ichthyology, 2011
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel ...
Alexssandro Geferson Becker, Jamile Fabbrin Gonçalves, Jaderson dos Anjos Toledo, Marcelo D. M. Burns, Luciano de Oliveira Garcia, João Paes Vieira, Bernardo Baldisserotto   +6 more
doaj   +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