Results 11 to 20 of about 2,170 (202)

Complete mitochondrial genome of the river stingray Potamotrygon orbignyi (Myliobatiformes: Potamotrygonidae) [PDF]

Mitochondrial DNA. Part B. Resources, 2019
The river stingray Potamotrygon orbignyi is a carnivorous bottom feeder that is widespread in the Amazonian region. We here assemble the 17,449 bp complete mitochondrial genome of the species, showing a typical gene arrangement as for related ...
David Ory, Yves Cuenot, Régis Vigouroux, Raphaël Covain, Sébastien Brosse, Jérôme Murienne   +5 more
doaj   +4 more sources

Venom gland transcriptome analyses of two freshwater stingrays (Myliobatiformes : Potamotrygonidae) from Brazil [PDF]

Scientific Reports, 2016
Stingrays commonly cause human envenoming related accidents in populations of the sea, near rivers and lakes. Transcriptomic profiles have been used to elucidate components of animal venom, since they are capable of providing molecular information on the
Alencar, Sérgio Amorim de, Cardoso, Marlon Henrique, Costa, Fabricio Falconi, Cândido, Elizabete de Souza, Fernandes, Gabriel da Rocha, Franco, Octávio Luiz, Garrone Neto, Domingos, Mortari, Márcia Renata, Oliveira Júnior, Nelson Gomes de, Schwartz, Elisabeth Nogueira Ferroni   +9 more
core   +5 more sources

Complete mitochondrial genome of the Devil Ray, Mobula thurstoni (Lloyd, 1908) (Myliobatiformes: Myliobatidae) [PDF]

Mitochondrial DNA. Part B. Resources, 2017
The Devil Ray (Mobula thurstoni) is a species with global distribution and is an important species in conservation terms, here we present its complete mitochondrial genome assembled with Illumina sequencing data.
Betsaida Santillán-Lugo, Raúl Llera-Herrera, David Corro-Espinosa, Erick C. Oñate-González, Guillermo Rodríguez-Domínguez, Nancy C. Saavedra-Sotelo   +5 more
doaj   +3 more sources

Testicular Morphology and Spermatogenesis in Potamotrygon motoro: Insights Into Reproduction of Freshwater Stingrays. [PDF]

J Morphol
Electron microscopy of Potamotrygon motoro spermatozoa. a – Illustration of a schematic sperm cell depicting the helical head, intermediate piece (midpiece), and flagellum. b ‐ Helical heads (Hh) of spermatozoa inserted into the cytoplasm of Sertoli cells (S) through openings in the plasma membrane. Scales: 10 μm.
Delgado MLR, Quirino PP, Gomes-Silva L, Dzyuba V, Dzyuba B, Ninhaus-Silveira A, Veríssimo-Silveira R.   +6 more
europepmc   +2 more sources

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin. [PDF]

J Fish Biol
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Pereira DAS, Reis RE, Fontoura NF.
europepmc   +2 more sources

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 ...
João Paulo C. B. da Silva, Marcelo R. de Carvalho   +1 more
doaj   +3 more sources

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

J Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP, Maicrovicz JC, Blanco DR, Lange D, Pavanelli CS, Brandão H.   +5 more
europepmc   +2 more sources

RETRACTION: Aerial imagery reveals abnormal stingrays, Taeniura lymma (Myliobatiformes: Dasyatidae), in the central Red Sea. [PDF]

Ecol Evol
Abstract RETRACTION: I.A. Ciocănaru, B.O. Nieuwenhuis, R.L. Ostrovski, J. Cochran, and B.H. Jones, “Aerial Imagery Reveals Abnormal Stingrays, Taeniura Lymma (Myliobatiformes: Dasyatidae), in the Central Red Sea,” Ecology and Evolution 14, no. 6 (2024): e11399, https://doi.org/10.1002/ece3.11399.
europepmc   +2 more sources

Sexual Size Dimorphism in Rays and Skates (Elasmobranchii: Batoidea). [PDF]

Ecol Evol
Interspecific trends in sexual size dimorphism are superficially similar in batoids to sharks, but are underlain by different modes of evolution. Selection for substantial SSD in batoids seems to be weaker than in sharks. This may be due to differences in the strength of fecundity selection.
Gayford JH, Seamone SG, Irschick DJ, Chin A, Rummer JL.   +4 more
europepmc   +2 more sources

Ecomorphology of the rectal gland of three batoids (Elasmobranchii: Myliobatiformes)

Zoologischer Anzeiger, 2021
Abstract The rectal gland (RG) is a specialized organ that performs a major role in salt excretion of marine elasmobranch species. We aimed to describe the rectal gland ecomorphology in three stingray species (Hypanus marianae, Hypanus guttatus, and Aetobatus narinari) from benthic and pelagic habitats.
Andressa C.M. de Melo, Cláudio Barboza de Andrade, Aline Poscai, Mariana Gomes do Rêgo, Fabrício Bezerra de Sá, Joaquim Evêncio Neto, Maria Lúcia Góes de Araújo   +6 more
openaire   +3 more sources