Cytogenetic and molecular characteristics of Potamotrygon motoro and Potamotrygon sp. (Chondrichthyes, Myliobatiformes, Potamotrygonidae) from the Amazon basin: Implications for the taxonomy of the genus [PDF]
Genetics and Molecular Biology, 2021 The chromosomes of two freshwater stingrays, Potamotrygon motoro and Potamotrygon sp., from the Amazon River basin in Brazil were investigated using integrated molecular (cytochrome c oxidase subunit 1) and cytogenetic analyses.
Vanessa Paes da Cruz +9 more
doaj +4 more sources
First report of Vandellia sp. parasiting the Raspy river stingray Potamotrygon scobina in the Amazon basin [PDF]
Revista Brasileira de Parasitologia VeterináriaThis study reports the first record of candiru, Vandellia sp. parasitizing the freshwater stingray Potamotrygon scobina in the Amazon basin, Brazil. In April 2018, a specimen of Potamotrygon scobina was collected by bottom long-term using fish as bait ...
Paulo Arthur Abreu Trindade +5 more
doaj +3 more sources
Foreign stingers: South American freshwater river stingrays Potamotrygon spp. established in Indonesia [PDF]
Scientific Reports, 2023 The pet trade is known to be one of the most important pathways of aquatic non-native species introduction and Indonesia is a significant trade partner. Popular ornamental South American river stingrays (Potamotrygon spp.) were introduced to Indonesia in
Rikho Jerikho +10 more
doaj +2 more sources
Karyotypic variation of two populations of the small freshwater stingray Potamotrygon wallacei Carvalho, Rosa & Araújo 2016: A classical and molecular approach. [PDF]
PLoS ONE, 2023 Potamotrygoninae comprises a group of Neotropical fishes with an ancient relationship with marine environments. In the last few years, 11 new Potamotrygon species were described, including Potamotrygon wallacei Carvalho, Araújo e Rosa 2016.
Alex M V Ferreira +3 more
doaj +2 more sources
Morphological, cytochemical and ultrastructural aspects of blood cells in freshwater stingray species in the middle Rio Negro basin of Amazonian Brazil [PDF]
Scientific Reports, 2021 In the present work, we examined the morphology, dimensions, cytochemical staining reactions and ultrastructure of blood cells from three freshwater stingray species, Potamotrygon wallacei, Potamotrygon motoro and Paratrygon aiereba, living in the waters
Adriano Teixeira de Oliveira +7 more
doaj +2 more sources
Papeis Avulsos De Zoologia, 2011 Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira basin. The new species is distinguished from all congeners by a unique combination of characters, including its dorsal color pattern formed by a relatively ...
João Paulo Capretz Batista da Silva +1 more
exaly +3 more sources
Diversity and ecological relationships of Cestoda and Monogenoidea parasites of freshwater stingrays (Myliobatiformes, Potamotrygonidae), in the upper Paraná River, Brazil [PDF]
International Journal for Parasitology: Parasites and WildlifeThe Neotropical freshwater stingrays of Potamotrygon genus present a unique and complex natural history and biogeographical pattern that can be traced to a marine origin and the colonization of the continental environment during the Miocene.
Jumma Miranda Araújo Chagas +4 more
doaj +2 more sources
Toxins, 2015 Freshwater stingrays cause many serious human injuries, but identification of the offending species is uncommon. The present case involved a large freshwater stingray, Potamotrygon motoro (Chondrichthyes: Potamotrygonidae), in the Araguaia River in ...
Nelson Jorge Silva Jr, Steven D Aird
exaly +3 more sources
[PROVISIONAL] Chromosomal characterization of Amazonian freshwater stingrays with evidence for new karyomorphs and XX/XY sex chromosomes [PDF]
Genetics and Molecular Biology, 2019 Cytogenetic studies in the subfamily Potamotrygoninae has already provided valuable insights into the understanding of the evolution and diversification of its species.
Francisco Carlos de Souza Valentim +2 more
doaj +2 more sources
Behavioural assessment of Potamotrygon stingrays under different food enrichment strategies
Frontiers in EthologyIntroductionFreshwater stingrays of the genus Potamotrygon are endemic to South America and increasingly maintained in aquaria worldwide, yet welfare studies on these species remain limited.
Helen Colbachini +2 more
exaly +3 more sources