Results 11 to 20 of about 54 (47)

Potamotrygon wallacei Carvalho, Rosa & Araújo, 2016, n. sp.

, 2016
Potamotrygon wallacei, n. sp. (Figs. 1–10, Tables 1–2) Potamotrygon schroederi Fernandez-Yépez, 1957 [in part].— Castex & Yagolkowski, 1970: 1 –13 (redescription); Rosa, 1985: 302 –314 (revision). Disceus thayeri Garman, 1913.— Nieuwenhuizen, 1974:
Rosa, Ricardo S., De Araújo, Maria Lúcia G., De Carvalho, Marcelo R.   +2 more
core   +1 more source

Diversidade e ecologia das raias de água doce (chondrichthyes: potamotrygonidae) da Reserva Biológica do Parazinho, AP [PDF]

, 2013
As raias de água doce da família Potamotrygonidae são restritas à América do Sul, onde ocorrem nos principais sistemas fluviais. É o único grupo de Elasmobrânquios exclusivo do meio dulcícola, possuindo especializações morfológicas e fisiológicas para a ...
Gama, Cecile de Souza
core  

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  

Tools for assessing animal welfare of the freshwater stingray, Potamotrygon magdalenae, in captivity [PDF]

, 2019
Animal welfare assessments, which involve physical, physiological and ethological aspects, are a useful tool to establish the species ability to adapt to confinement.
Pérez-Rojas, Jose Gabriel
core  

Patterns of diversity and host specificity in the cestodes of Neotropical freshwater stingrays

, 2007
The rivers of South America are home to several animal groups of marine origin. These include freshwater stingrays (Potamotrygonidae), and their metazoan parasites such as cestodes, which were represented by 22 species prior to this project. This project
Reyda, Florian Barton
core  

Rhythmic chew cycles with distinct fast and slow phases are ancestral to gnathostomes. [PDF]

Philos Trans R Soc Lond B Biol Sci, 2023
Richard BA, Spence M, Rull-Garza M, Roba YT, Schwarz D, Ramsay JB, Laurence-Chasen JD, Ross CF, Konow N.   +8 more
europepmc   +1 more source

Host relationships and geographic distribution of species of Acanthobothrium Blanchard, 1848 (Onchoproteocephalidea, Onchobothriidae) in elasmobranchs: a metadata analysis. [PDF]

Zookeys, 2020
Zaragoza-Tapia F, Pulido-Flores G, Gardner SL, Monks S.   +3 more
europepmc   +1 more source

Injuries caused by fish to fishermen in the Vale do Alto Juruá, Western Brazilian Amazon. [PDF]

Rev Soc Bras Med Trop, 2019
Costa TND, Jacó TRF, Casas ALDS, Bernarde PS.   +3 more
europepmc   +1 more source

First DNA Barcode Reference Library for the Identification of South American Freshwater Fish from the Lower Paraná River. [PDF]

PLoS One, 2016
Díaz J, Villanova GV, Brancolini F, Del Pazo F, Posner VM, Grimberg A, Arranz SE.   +6 more
europepmc   +1 more source

Stingray venom activates IL-33 producing cardiomyocytes, but not mast cell, to promote acute neutrophil-mediated injury. [PDF]

Sci Rep, 2017
Dos Santos JC, Grund LZ, Seibert CS, Marques EE, Soares AB, Quesniaux VF, Ryffel B, Lopes-Ferreira M, Lima C.   +8 more
europepmc   +1 more source