Chromosome-Level Assembly and Annotation of the Grey Reef Shark (Carcharhinus amblyrhynchos) Genome. [PDF]
Genome Biol EvolDahms C +4 more
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Histopathological characterization of skin and muscle lesions induced by lionfish (Pterois volitans) venom in a murine experimental model. [PDF]
J Venom Anim Toxins Incl Trop DisDíaz C +3 more
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First Chromosome-level Genome Assembly and Annotation of an Endangered Freshwater Stingray (Fontitrygon garouaensis) from Africa. [PDF]
Sci DataNneji LM +6 more
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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 ...
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Abstract OBJECTIVE To evaluate the surgical technique and subsequent clinical observations (reproductive and ultrasound findings) of left unilateral ovariectomy in 3 species of Potamotrygon rays—Potamotrygon castexi, Potamotrygon leopoldi, and Potamotrygon motoro—for reproductive management. ANIMALS Between 2018 and 2019, multiple Potamotrygon rays (
Chelsea E, Anderson +3 more
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Serial reversal learning in freshwater stingrays (Potamotrygon motoro)
Animal Cognition, 2019Serial reversal learning is considered a reliable approach for the testing of behavioral flexibility, and animals that inhabit fluctuating habitats and different environments are expected to possess behavioral and cognitive flexibility. The ocellate river stingray (Potamotrygon motoro) is one such species.
Martha M. M. Daniel, Vera Schluessel
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Social learning in Cartilaginous fish (stingrays Potamotrygon falkneri)
Animal Cognition, 2013Social learning is considered one of the hallmarks of cognition. Observers learn from demonstrators that a particular behavior pattern leads to a specific consequence or outcome, which may be either positive or negative. In the last few years, social learning has been studied in a variety of taxa including birds and bony fish.
Kerstin E, Thonhauser +5 more
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Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro
Journal of Comparative Physiology A, 2005We investigated whether juvenile freshwater stingrays (Potamotrygon motoro) can solve spatial tasks by constructing a cognitive map of their environment. Two experimental conditions were run: allocentric and ego-allocentric. Rays were trained to locate food within a four-arm maze placed in a room with visual spatial cues.
Schluessel, Vera, Bleckmann, Horst
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Potamotrygon spp.: Elasmobranchs with Low Urea Content
Science, 1967All previously reported species of Chondrichthyes, from both marine and fresh water, have contained urea at concentrations ranging from about 300 to 1300 milligrams of urea nitrogen per 100 milliliters of fluid. Body fluids from two species of Potamotrygon , permanent residents of the Amazon basin, contained only 2 ...
T B, Thorson, C M, Cowan, D E, Watson
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Ampullary electroreceptors in the fresh water ray,Potamotrygon
Journal of Comparative Physiology ? A, 19801. Ampullary organs of the fresh water stingrayPotamotrygon have short canals. Receptor cells of the ampullary epithelium have a single kinocilium on their lumenal faces and form ribbon synapses with afferent fibers on their basal faces. 2. Afferents from the receptors exhibit a tonic rhythmic discharge.
R. B. Szamier, M. V. L. Bennett
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