Results 11 to 20 of about 559 (179)
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 +1 more
doaj +6 more sources
, 2023 <p>Potamotrygonidae indet.</p> <p>(Fig. 2 B1-G2).</p> <p>EXAMINED BODY PARTS. — Bucklers and caudal spines.</p> <p>MATERIAL EXAMINED. — Museo de La Tormenta, two isolated teeth (VPPLT 10000, 10001);
Aguilera, Orangel +4 more
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, 2020 Family Potamotrygonidae Distribution. Upper Seletar Reservoir (Ng et al., 2009; Chua G, 2010; Ng HH & Tan HH, 2010; Ho et al., 2016); Lower Peirce Reservoir (Lai, 2015; Ho et al., 2016); Banir stream [direct link to Lower Seletar Reservoir] (Tan & Zeng,
Wei, Low Bi +6 more
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Phylogeography and conservation genetics of the Amazonian freshwater stingray Paratrygon aiereba Müller & Henle, 1841 (Chondrichthyes: Potamotrygonidae) [PDF]
Neotropical Ichthyology, 2012 The family Potamotrygonidae is monophyletic comprising three genera: Paratrygon Duméril, Potamotrygon Garman and Plesiotrygon Rosa, Castello & Thorson.
Renata G. Frederico +4 more
doaj +3 more sources
The Journal of Parasitology, 1992 Members of the freshwater stingray family Potamotrygonidae occur throughout the major river systems of eastern South America that empty into the Atlantic Ocean. Ichthyologists have tended to assume that the ancestor of the potamotrygonids was an Atlantic
Brooks, Daniel R.
core +3 more sources
Brazilian Journal of Biology, 2010 The stomach contents of 137 examples of Potamotrygon motoro caught in 3 locations (Muaná, Afuá and Lake Arari) on Marajó Island were analysed. The values of the Index of Relative Importance (IRI) and its respective percentage (%IRI) were calculated.
MP. Almeida +3 more
doaj +6 more sources
The evolutionary origin of the durophagous pelagic stingray ecomorph. [PDF]
Palaeontology, 2023 Abstract Studies of the origin of evolutionary novelties (novel traits, feeding modes, behaviours, ecological niches, etc.) have considered a number of taxa experimenting with new body plans, allowing them to occupy new habitats and exploit new trophic resources.
Marramà G +4 more
europepmc +2 more sources
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 +1 more
doaj +1 more source
Genetica, 2006 Potamotrygonidae is the representative family of South American freshwater elasmobranchs. It is a monophyletic group containing 20 species grouped into three genera.
Falcão, José das Neves +3 more
core +4 more sources
Branchial localization of acid (A-type) and base (B-type) excreting ionocytes in Amazonian stenohaline freshwater Potamotrygon ray. [PDF]
J Fish BiolAbstract The branchial epithelium of Potamotrygon—a member of the only strictly freshwater elasmobranch family Potamotrygonidae—was observed via immunohistochemistry, and two distinct forms of ionocytes were identified. The acid (A‐type) and base (B‐type) secreting cells with respective basolateral–apical localizations of Na+/K+‐ATPase–Na+/H+ exchanger
Rossi MW, Wood CM, Val AL, Wilson JM.
europepmc +2 more sources