Results 91 to 100 of about 996 (161)

Morphology of lateral line canals in Neotropical freshwater stingrays (Chondrichthyes: Potamotrygonidae) from Negro River, Brazilian Amazon

Neotropical Ichthyology
The relationship between the distribution of the lateral line canals and their functionality has not been well examined in elasmobranchs, especially among Neotropical freshwater stingrays of the family Potamotrygonidae.
Akemi Shibuya, Jansen Zuanon, Maria Lúcia G. de Araújo, Sho Tanaka   +3 more
doaj   +1 more source

Behavioural assessment of Potamotrygon stingrays under different food enrichment strategies

Frontiers in Ethology
IntroductionFreshwater stingrays of the genus Potamotrygon are endemic to South America and increasingly maintained in aquaria worldwide, yet welfare studies on these species remain limited.
Cassia Regina Ramos Gonzaga, Cristiano Schetini de Azevedo, Helen Colbachini, Laura Chrispim Reisfeld, Fabiana Lúcia André Padilha, Rafael Caprioli Gutierrez, Cristiane Schilbach Pizzutto, Cristiane Schilbach Pizzutto   +7 more
doaj   +1 more source

Cross-reactivity between Potamotrygon motoro antivenoms and dorsal and stinger extracts of others stingrays (Chondrichthyes: Potamotrygonidae) from the Amazon basin

, 2019
In this study, two mouse hyperimmune sera were produced, one using extract from the stinger of the stingray Potamotrygon motoro and the other using extract from the dorsal region of the same species and their cross-reactivity with extracts from the ...
Costa, Oscar Tadeu Ferreira da, Dias, Lucas Castanhola, Moura, Valéria Mourão de, Lameiras, Juliana Luiza Varjão, Santos, Maria Cristina dos, Santos, Ilia Gilmara Carvalho dos   +5 more
core   +1 more source

Levels of Total Mercury and Health Risk Assessment of Consuming Freshwater Stingrays (Chondrichthyes: Potamotrygoninae) of the Brazilian Amazon. [PDF]

Int J Environ Res Public Health, 2023
Oliveira AT, Rodrigues PA, Ramos Filho AM, Gomes MFDS, Liebl ARDS, de Pinho JV, Aride PHR, Conte-Junior CA.   +7 more
europepmc   +1 more source

Video of Potamotrygon motoro Feeding on Odonate Larva from Always chew your food: freshwater stingrays use mastication to process tough insect prey

, 2016
Chewing, characterized by shearing jaw motions and high-crowned molar teeth, is considered an evolutionary innovation that spurred dietary diversification and evolutionary radiation of mammals.
Kenneth Welch (3107178), Nathan Lovejoy (3107175), Adam Summers (3107181), Matthew Kolmann (3107172)   +3 more
core   +1 more source

Potamotrygon amandae Loboda, Carvalho 2013

, 2018
Potamotrygon amandae Loboda, Carvalho, 2013 Fig. 2 Body depressed; disc length contained 0.8 to 1.2 times in disc width (DW); distance from mouth to cloaca 1.3 to 1.7, distance from cloaca to caudal sting 1.8 to 2.6, tail length 0.8 to 1.0, and ...
Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da, Pavanelli, Carla Simone, Ota, Renata Rúbia   +3 more
core   +1 more source

Elastic-Snapping–Driven Butterfly Stroke: A Soft Robotic Fish

Machines
The locomotion of fish provides inspiration for designing efficient and agile underwater robots. Potamotrygon motoro propels itself by generating traveling waves along its pectoral fins. Inspired by its graceful swimming stroke, we design and fabricate a
Lin Tian, Ruo-Pu Chen, Yu Zhao, Zhi-Peng Wang, Jiao Jia, Weifeng Yuan, Xi-Qiao Feng, Zi-Long Zhao   +7 more
doaj   +1 more source

Mapping of the venomous stingrays of the Potamotrygon genus in the Tietê River, São Paulo Sstate, Brazil. [PDF]

Rev Soc Bras Med Trop, 2022
Moreira ISR, Haddad Junior V.
europepmc   +1 more source

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

Karyotypic variation of two populations of the small freshwater stingray Potamotrygon wallacei Carvalho, Rosa & Araújo 2016: A classical and molecular approach. [PDF]

PLoS One, 2023
Ferreira AMV, Viana PF, Marajó L, Feldberg E.   +3 more
europepmc   +1 more source