Results 61 to 70 of about 972 (148)

Stirring, charging, and picking: hunting tactics of potamotrygonid rays in the upper Paraná River

Neotropical Ichthyology
Hunting tactics of potamotrygonid freshwater rays remain unreported under natural conditions. Three main foraging tactics of Potamotrygon falkneri and P. motoro are described here based on underwater observations in the upper Paraná River.
Domingos Garrone-Neto, Ivan Sazima
doaj   +1 more source

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data

Cladistics, Volume 41, Issue 3, Page 264-282, June 2025.
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Philippe Vieira Alves, Reinaldo José da Silva, Tomáš Scholz, Alain de Chambrier, José Luis Luque, Anastasiia Duchenko, Daniel Janies, Denis Jacob Machado   +7 more
wiley   +1 more source

Biological and biochemical properties of the Brazilian Potamotrygon stingrays : Potamotrygon cf. scobina and Potamotrygon gr. orbignyi

, 2006
Stingrays of the family Potamotrygonidae are widespread throughout river systems of South America that drain into the Atlantic Ocean. Some species are endemic to the most extreme freshwater environment of the Brazil and cause frequent accidents to humans.
Hiruma-Lima, C. A., Lima, C., Magalhaes, K. W., Piran-Soares, A. A., Marques, E. E., Lopes-Ferreira, M.   +5 more
core   +1 more source

Allometric patterns in Potamotrygon motoro (Myliobatiformes: Potamotrygonidae): insights into sexual and ontogenetic variation

Neotropical Ichthyology
Potamotrygon is the most species-rich genus of Neotropical freshwater stingrays in the Potamotrygoninae, currently comprising 31 species primarily diagnosed by coloration patterns, dermal denticles, and body measurements. Although morphometric characters
Júlia Papalardo Azevedo, Thiago Silva Loboda, Veronica Slobodian   +2 more
doaj   +1 more source

Revisiting the History of Ornamental Aquaculture in Europe to Understand the Benefits and Drawbacks of Freshwater Fish Imports

Reviews in Aquaculture, Volume 17, Issue 2, March 2025.
ABSTRACT Ornamental aquaculture and fishkeeping are very popular with millions of enthusiasts worldwide. The number of newly imported fish species for ornamental purposes grew slowly from World War I until the 1980s. It then exponentially increased until now with more than 7900 species and a large number of scientifically undescribed morphotypes.
Jindřich Novák, Dieter Hohl, Martin Stuchlík, Jaroslav Hofmann, Michael F. Tlusty, André Lincoln Barroso Magalhães, Alberto Maceda‐Veiga, Surya Gentha Akmal, Gen Hua Yue, Pradeep Kumkar, Sean M. Marr, Joseph R. Sara, Nir Stern, Andrew L. Rhyne, James M. Furse, Lukáš Kalous, Jiří Patoka   +16 more
wiley   +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

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

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   +1 more source

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani, Luiz Guilherme dos Santos Ribas, Anderson Luís Maciel, Geuza Cantanhêde, Laís Thayse Meier, Pitágoras Augusto Piana, Caroline Henn, Yintao Jia   +7 more
wiley   +1 more source

Potamotrygon pantanensis Loboda & Carvalho 2013

, 2022
<i>Potamotrygon pantanensis</i> Loboda & Carvalho, 2013: 715, fig. 23. <p> <b>Paratype:</b> 1 lot, 1 specimen. NUP 4179, adult (m), 215 mm DW: Brazil, Mato Grosso, Chapada dos Guimarães, rio Manso, tributary of ...
De Oliveira, Rianne C., Zawadzki, Cláudio H., Ota, Renata R., Pavanelli, Carla S., Da Graça, Weferson J., Deprá, Gabriel C.   +5 more
core   +1 more source

Serum chemistry, thyroxine concentration, and blood cell morphology of wild, young Blackchin Guitarfish Glaucostegus cemiculus sampled on the eastern Mediterranean coastline

Journal of Aquatic Animal Health, Volume 36, Issue 3, Page 281-299, September 2024.
Abstract Objective The Blackchin Guitarfish Glaucostegus cemiculus is endemic to the Mediterranean Sea and is critically endangered, but relevant routine laboratory data are unavailable. Our objectives were to determine the packed cell volume (PCV), comprehensive serum chemistry analytes, and serum total thyroxine (sTT4) concentration; compare serum ...
Nevo Schwartz, Danny Morick, Barak Azrieli, Aviad Scheinin, Dan Tchernov, Itamar Aroch   +5 more
wiley   +1 more source