Results 11 to 20 of about 1,823 (231)

Morfometria de raias continentais (Chondrichthyes, Potamotrygonidae) do alto rio Paraná, Brasil - DOI: 10.4025/actascibiolsci.v29i4.885

Acta Scientiarum: Biological Sciences, 2008
Potamotrygonidae constitui o único grupo recente de Chondrichthyes cujo habitat está restrito, exclusivamente, a águas continentais. Na planície de inundação do Alto rio Paraná, espécies desta família estabeleceram-se após o fechamento das comportas da ...
Antonio Guilherme Cândido da Silva, Erivelto Goulart   +1 more
doaj   +6 more sources

A taxonomic and morphological redescription of Potamotrygon falkneri Castex & Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae) [PDF]

Neotropical Ichthyology, 2011
A taxonomic revision of two nominal species of freshwater stingrays of the genus Potamotrygon previously considered valid, Potamotrygon falkneri Castex & Maciel, 1963 and Potamotrygon castexi Castello & Yagolkowski, 1969, was conducted based on a ...
João Paulo C. B. da Silva, Marcelo R. de Carvalho   +1 more
doaj   +5 more sources

Aplicación del modelo de pérdida de ADN para el diseño de cebadores en Potamotrygon magdalenae (Potamotrygonidae)

Acta Biológica Colombiana, 2021
El diseño de cebadores es fundamental para amplificar regiones de genes debido a que la especificidad que mantienen cebador-secuencia de interés puede causar el éxito o fracaso en la reacción de PCR.
Iván Yesid López-Ardila, Francisco José Martínez-Pérez, Fernando Rondón-González   +2 more
doaj   +5 more sources

Analysis of the Entire Mitogenome of the Threatened Freshwater Stingray <i>Potamotrygon leopoldi</i> (Myliobatiformes: Potamotrygonidae) and Comprehensive Phylogenetic Assessment in the Xingu River, Brazilian Amazon. [PDF]

Int J Mol Sci
The present study characterizes the complete mitochondrial genome of Potamotrygon leopoldi, commonly referred to as the “white blotched stingray”, a member of the Potamotrygonidae family that are a group of stingrays that live exclusively in freshwater ...
Guerreiro SLM, Vidal AF, Silva CS, Cavalcante GC, Magalhães L, Gomes DHF, Filho JCDS, Souza JES, Pires É, Oliveira G, Melo DSD, Sá ALA, Hamoy I, Ribeiro-Dos-Santos Â, Santos SEB.   +14 more
europepmc   +4 more sources

Caracterización morfológica de los estadios embrionarios de la raya dulceacuícola Potamotrygon magdalenae (Elasmobranchii: Potamotrygonidae)

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2022
Potamotrygon magdalenae, una raya perteneciente a la familia Potamotrygonidae distribuida en la cuenca del río Magdalena, es considerada de muy alta prioridad para la investigación en el Plan de Acción Nacional para la Conservación y Manejo de Tiburones,
Sergio Antonio Lizcano-Gutiérrez, Martha Patricia Ramírez-Pinilla   +1 more
doaj   +3 more sources

Morfometria de raias continentais (Chondrichthyes, Potamotrygonidae) do alto rio Paraná, Brasil = Morphometry of upper Paraná river freshwater stingrays (Chondrichthyes, Potamotrygonidae)

Acta Scientiarum: Biological Sciences, 2007
Potamotrygonidae constitui o único grupo recente de Chondrichthyes cujo habitat está restrito, exclusivamente, a águas continentais. Na planície de inundação do Alto rio Paraná, espécies desta família estabeleceram-se após o fechamento das comportas da ...
Antonio Guilherme Cândido da Silva, Erivelto Goulart   +1 more
doaj   +2 more sources

Ectoparasitos (Argulidae, Cymothoidae, Corallanidae) en rayas de agua dulce (Potamotrygonidae) de la Orinoquia colombiana

Biota Colombiana, 2018
Se registra por primera vez para Colombia (cuenca del Orinoco), cuatro especies de crustáceos ectoparásitos en rayas de agua dulce (Potamotrygonidae), género Potamotrygon. Dos que pertenecen a la subclase Branchiura, familia Argulidae: Dolops reperta (Bouvier, 1899) y D.
Carlos A. Lasso, Martha R. Campos, Mónica A. Morales-Betancourt, David Castro   +3 more
semanticscholar   +6 more sources

Case report: Clinical management of freshwater stingray wounds using negative pressure therapy [PDF]

Frontiers in Medicine
Stingray injuries represent a significant occupational hazard, particularly for fishermen, and are commonly caused by freshwater stingrays of the Potamotrygonidae family. These stingrays are equipped with a sharp, bilaterally serrated spine that delivers
Janio J. M. Nattrodt, Victória A. Bezerra-de-Freitas, Ana Paula S. S. Merval, Eloise T. Filardi, Felipe A. Cerni, Domingos S. M. Dantas, Alysson B. M. Lins, Alysson B. M. Lins, Luis E. B. Galan, Luis E. B. Galan, Roberto C. Carbonell, Roberto C. Carbonell, Manuela B. Pucca, Manuela B. Pucca   +13 more
doaj   +2 more sources

Forensic Application of Cytb and COI Genes for Freshwater stingray Identification: A Seizure Case in Bogotá, Colombia [PDF]

Revista Científica
Freshwater stingrays of the Potamotrygonidae family are highly valued in the international market as ornamental fish, leading to growing demand and economic significance. In Colombia, despite legal regulations aimed at protecting these animals and their
Lisbeth Gelvez, Ana Cuellar, María Gómez, Jorge Oliveros, Paola Alméciga–Diaz, Myreya Pinedo–Castro, John Infante–González   +6 more
doaj   +3 more sources

Trophic ecology and metabolism of two species of nonnative freshwater stingray (Chondrichthyes: Potamotrygonidae)

Hydrobiologia, 2020
The stingrays Potamotrygon amandae and Potamotrygon falkneri are nonnative species established in the Upper Parana basin. Although they are widely distributed, few studies on their diets or respective metabolic responses exist. Therefore, the aim was to evaluate the dietary composition, trophic niche breadth and lipid/protein concentrations in muscle ...
Cibele Diogo Pagliarini, Cristiéle da Silva Ribeiro, Lucas Spada, Rosilene Luciana Delariva, Jumma Miranda Araújo Chagas, Luciano Alves dos Anjos, Igor Paiva Ramos   +6 more
semanticscholar   +6 more sources