Results 111 to 120 of about 873 (190)

Potamotrygon schroederi

open access: yes, 2017
Ejemplar de raya guacamayaFaunaVichadaLaboratorio Fundación OrinoquíaLaboratorio de pecesRaya guacamayaPotamotrygon schroederiAnimaliaChordataChondrichthyesMyliobatiformesPotamotrygonidaePotamotrygonPuerto ...
Novoa Serna, María del Rosario
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Ecophysiological interactions and water-related physicochemical parameters among freshwater stingrays

open access: yesBrazilian Journal of Biology
The objective of this study was to compare and correlate the ecology of neonates and young individuals of Potamotrygon wallacei, Potamotrygon motoro and Paratrygon aiereba with regard to their hematological profile and the physicochemical parameters of ...
A. T. Oliveira   +7 more
doaj   +1 more source

Diversidad genética de potamotrygon motoro en las cuencas del Onrinóco y Amazonas colombiano [PDF]

open access: yes, 2017
61 p. Recurso ElectrónicoLa falta de claridad frente a la taxonomía de Potamotrygon motoro y la ausencia de estudios previos de su diversidad genética, hace a la especie vulnerable al ser la segunda especie de raya de agua dulce más extraída y exportada ...
Renza Millán, Mariana
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Cross-reactivity between Potamotrygon motoro antivenoms and dorsal and stinger extracts of others stingrays (Chondrichthyes: Potamotrygonidae) from the Amazon basin

open access: yes, 2019
In this study, two mouse hyperimmune sera were produced, one using extract from the stinger of the stingray Potamotrygon motoro and the other using extract from the dorsal region of the same species and their cross-reactivity with extracts from the ...
Costa, Oscar Tadeu Ferreira da   +5 more
core   +1 more source

Note about a specimen of the genus Potamotrygon (Chondrichthyes, Potamotrygonidae).

open access: yes, 1971
Its deal with the study of a sample of "river ray" of the Potamotrygonidae family procured in the Colastiné river (Midle Paraná)showing an external morphology relating it closely to two species of said family: Potamotrygon falkneri Castex y Maciel, 1963 ...
Martínez Achembach, Guillermo
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Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yepez, 1958 (Chondrichthyes: Potamotrygonidae)

open access: yes, 2011
A new species of Neotropical freshwater stingray, family Potamotrygonidae, is described from the Rio Nanay in the upper Rio Amazonas basin of Peru. Potamotrygon tigrina, n.
De, Marcelo R.   +4 more
core   +1 more source

Ecomorfology and intra-specific variation in the morphology of Potamotrygon falkneri and Potamotrygon motoro (Chondrichthyes-Potamotrygonidae) in the upper Paraná river and its foodplain, Brazil.

open access: yes, 2009
Potamotrygonidae comprises the only group of fish with cartilaginous skeletons that has adaptations to live exclusively in fresh water. The family is widely distributed in South American rivers that drain towards the Atlantic and has great richness, with
Lonardoni, Alessandra Pasian
core   +1 more source

Fístula arterio-venosa secundaria a picadura de raya de río Arteriovenous fistula secondary to stingray puncture

open access: yesIatreia, 1993
<p class="MsoNormal"><span style="font-size: 9pt; font-family: Arial">Se presenta el caso de un paciente de sexo masculino, pescador, lesionado en la región fe. moral por una raya de río (Potamotrygon magdalenne) lo que le produjo una fístula
Rodrigo Girón   +1 more
doaj  

Levels of Total Mercury and Health Risk Assessment of Consuming Freshwater Stingrays (Chondrichthyes: Potamotrygoninae) of the Brazilian Amazon. [PDF]

open access: yesInt J Environ Res Public Health, 2023
Oliveira AT   +7 more
europepmc   +1 more source

Delimitación de especies del género Potamotrygon (Garman, 1877) mediante el uso de secuencias del gen mitocondrial Citocromo Oxidasa I (COI)

open access: yes, 2022
Incluye figuras, tablas y anexosEl género Potamotrygon incluye 33 especies de rayas de rio, pero la identificación de sus especies ha presentado dificultades debido a la escasez de caracteres puntuales para identificar especies, su sistemática ...
Ubaque Bernal, Jhoimar de Jesús
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