Results 71 to 80 of about 102 (84)

First identification of interspecies hybridization in the freshwater stingrays Potamotrygon motoro and P. falkneri (Myliobatiformes, Potamotrygonidae)

Conservation Genetics, 2014
The stingrays Potamotrygon motoro and P. falkneri occurred in sympatry in the Paraguay, Lower and Middle Parana River, and belong to distinct ecomorphological groups. The construction of a hydroelectric dam in Itaipu in 1982 facilitated the invasion of Upper Parana River by both species with unpredictable ecological consequences. The aim of the present
Vanessa P Cruz, Manuel Vera, Fernando Fernandes Mendonça   +2 more
exaly   +3 more sources

Comparative study on extracts from the tissue covering the stingers of freshwater (Potamotrygon falkneri) and marine (Dasyatis guttata) stingrays

Toxicon, 2007
Stingrays are elasmobranchs found along the seacoast and in some rivers of Brazil. Pain is the most conspicuous symptom observed in patients wounded by the bilaterally retroserrate stingers located in the tail, which are covered by glandular and integument tissues.
Katia C Barbaro, Domingos Garrone Neto, Marcelo L Santoro   +2 more
exaly   +4 more sources

Trophic ecology and metabolism of two species of nonnative freshwater stingray (Chondrichthyes: Potamotrygonidae)

Hydrobiologia, 2020
Cibele Diogo Pagliarini, Cristiéle Da Silva Ribeiro, Lucas Spada   +2 more
exaly  

A taxonomic and morphological redescription of Potamotrygon falkneri Castex & Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae)

Neotropical Ichthyology, 2011
João Paulo C B da Silva, Marcelo R DE CARVALHO   +1 more
exaly  

Identification and validation of single nucleotide polymorphisms as tools to detect hybridization and population structure in freshwater stingrays

Molecular Ecology Resources, 2017
Vanessa P Cruz, Manuel Vera, BELÉN G Pardo   +2 more
exaly  

Skeletal morphology and growth of freshwater stingray Potamotrygon falkneri (Chondrichthyes, Myliobatiformes).

2013
Stepanek, Rica, Kriwet, Jürgen
openaire   +1 more source

Revision of Potamotrygonocotyle Mayes, Brooks & Thorson, 1981 (Platyhelminthes: Monogenoidea: Monocotylidae), with descriptions of four new species from the gills of the freshwater stingrays Potamotrygon spp. (Rajiformes: Potamotrygonidae) from the La Plata river basin

Systematic Parasitology, 2007
Marcus V Domingues, Fernando P L Marques
exaly  

SAFETY AND EFFICACY OF MILBEMYCIN OXIME AND LUFENURON TO TREAT ARGULUS SPP. INFESTATION IN SMOOTH BACK RIVER STINGRAYS (POTAMOTRYGON ORBIGNYI) AND MAGDALENA RIVER STINGRAYS (POTAMOTRYGON MAGDALENAE)

Journal of Zoo and Wildlife Medicine, 2019
William Van Bonn
exaly  

Morphological description and comparison of a growth series of Potamotrygon falkneri from South America.

2012
Stepanek, Rica, Kriwet, Jürgen
openaire   +1 more source

Mitochondrial DNA diversity and population structure of the ocellate freshwater stingray Potamotrygon motoro (Müller & Henle, 1841) (Myliobatiformes: Potamotrygonidae) in the Colombian Amazon and Orinoco Basins

Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis, 2019
CARLOS A Lasso, Mónica A Morales-Betancourt, Susana Caballero   +2 more
exaly