Redescrição de Genidens barbus (Lacépède, 1803) e Genidens machadoi (Miranda-Ribeiro, 1918), Bagres Marinhos (Siluriformes, Ariidae) do Atlântico Sul Ocidental [PDF]
Papéis 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.
Alexandre P. Marceniuk
doaj +9 more sources
Karyotypes of three species of marine catfishes from Brazil [PDF]
Brazilian Journal of Oceanography, 1994 The chromosomes of three species of fishes belonging to the family Ariidae -Netuma barba, Genidens genidens and Amis parkeri - were studied after conventional Giemsa staining. All three species have a diploid chromosome number of 2n = 56.
Vicente Gomes +2 more
doaj +5 more sources
Lapillus otoliths of the Cathorops spixii (Spix & Agassiz, 1829) and Genidens genidens (Cuvier, 1829) (Actinopterygii - Ariidae) [PDF]
Acta Scientiarum: Biological Sciences, 2014 The aim of this study was to analyze the morphology and morphometry of lapillus otoliths of the catfishes Cathorops spixii and Genidens genidens from the coast of Paraná State, Brazil. We used 147 lapillus from C. spixii and 96 from G.
Barbara Maichak de Carvalho +2 more
doaj +4 more sources
Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America. [PDF]
Parasitology, 2023 Due to their high specificity, monogenoids from fish provide an interesting model to study historical associations of hosts and parasites. High agreement between host and parasite phylogeny is often interpreted as evidence of cospeciation.
Soares GB +3 more
europepmc +3 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 +9 more
doaj +3 more sources
Population structure and habitat connectivity of Genidens genidens (Siluriformes) in tropical and subtropical coasts from Southwestern Atlantic [PDF]
Estuarine, Coastal and Shelf Science, 2020 We use otolith trace element-to-calcium element concentraton ratios (Ba:Ca, Cu:Ca, Mg:Ca, Mn:Ca, Ni:Ca, Sr:Ca and Zn:Ca) and shape to evaluate the degree of segregation and presence of different nursery areas and fish stocks of Genidens genidens in the ...
Avigliano, Esteban +4 more
core +3 more sources
Otoliths as indicators for fish behaviour and procurement strategies of hunter-gatherers in North Patagonia. [PDF]
Heliyon, 2020 This study evaluates the potential use of archaeological otoliths of Genidens barbus (Cuvier and Valenciennes) as a tool to study fish behavior and hunter-gatherers procurement strategies on the North Patagonian coast.
Avigliano E +6 more
europepmc +4 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 +5 more
doaj +2 more sources
Bacterial contamination of the catfish (Cathorops agassizii - Valenciennes, 1839 and Genidens genidens - Agassiz, 1829) sting [PDF]
Journal of Venomous Animals and Toxins including Tropical Diseases, 2006 Departamento de Microbiologia e Imunologia Instituto de Biociencias UNESP, Botucatu, SP, 18618 ...
Marcos Emerson Pinheiro Junqueira
doaj +5 more sources
Management proposal based on the timing of oral incubation of eggs and juveniles in the sentinel species Genidens genidens (Siluriformes: Ariidae) in a tropical estuary [PDF]
Neotropical Ichthyology, 2018 Ariids such as Genidens genidens are particularly susceptible to overfishing because of their complex reproductive mechanisms, which result in slow replenishment of stocks.
Thaís Rodrigues Maciel +3 more
doaj +3 more sources