Results 1 to 10 of about 593 (127)

Morphology of sagitta, lapillus and asteriscus of Patagonian Genidens barbus [PDF]

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   +9 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.
Esteban Avigliano, Gustavo Martínez, Luciana Stoessel, Ana Méndez, Nerea Bordel, Jorge Pisonero, Alejandra Volpedo   +6 more
doaj   +6 more sources

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

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   +7 more sources

Primer reporte de Genidens barbus durante el período no reproductivo en aguas costeras de Río Negro, Argentina [PDF]

Marine and Fishery Sciences
El bagre marino Genidens barbus es una especie bentónica y anádroma, distribuida desde Brasil hasta el sur de Argentina, cuya presencia durante el período no reproductivo es poco conocida. En este trabajo se documentó el primer registro confirmado de una
Andrea D. Tombari, Fernando Andrés, Laura S. López Greco, M. Cecilia González Dubox   +3 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, Adriano EA, Domingues MV, Balbuena JA.   +3 more
europepmc   +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

Molecular Identification of Shark Meat From Local Markets in Southern Brazil Based on DNA Barcoding: Evidence for Mislabeling and Trade of Endangered Species [PDF]

Frontiers in Genetics, 2018
Elasmobranchs, the group of cartilaginous fishes that include sharks and rays, are especially vulnerable to overfishing due to low fecundity and late sexual maturation.
Fernanda Almerón-Souza, Christian Sperb, Carolina L. Castilho, Pedro I. C. C. Figueiredo, Leonardo T. Gonçalves, Rodrigo Machado, Larissa R. Oliveira, Victor H. Valiati, Nelson J. R. Fagundes   +8 more
doaj   +2 more sources

Notes on the Bull shark Carcharhinus leucas in the lagoon region of Cananéia, Brazil [PDF]

Brazilian Journal of Oceanography, 1971
Ninety one young specimens and 3 adult females of BulI shark ("cação cabeça chata") caught in the lagoon region of Cananéia were examined, their tooth formula being 27/25 and the number of pre-caudal vertebrae ranging from 109 to 115.
V Sadowsky
doaj   +5 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