Results 11 to 20 of about 1,091 (168)

Lapillus otoliths of the Cathorops spixii (Spix & Agassiz, 1829) and Genidens genidens (Cuvier, 1829) (Actinopterygii - Ariidae) [PDF]

open access: yesActa 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

Population structure and habitat connectivity of Genidens genidens (Siluriformes) in tropical and subtropical coasts from Southwestern Atlantic [PDF]

open access: yesEstuarine, 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

Ichthyofauna used in traditional medicine in Brazil. [PDF]

open access: yesEvid 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   +8 more
europepmc   +2 more sources

Genidens barbus (Lacepède, 1803) [PDF]

open access: yes, 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

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

open access: yesLatin 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   +3 more
doaj   +3 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]

open access: yesNeotropical 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

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

open access: yesFrontiers 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   +5 more
doaj   +4 more sources

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

open access: yesNeotropical 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   +3 more
doaj   +3 more sources

Morphology of sagitta, lapillus and asteriscus of Patagonian Genidens barbus

open access: yesMarine 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   +3 more
doaj   +2 more sources

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

open access: yesNeotropical 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   +6 more
doaj   +2 more sources

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