Results 81 to 90 of about 2,430 (247)

Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Neotropical Ichthyology
This comparative study of gill morphometrics in near-term embryos of freshwater stingray potamotrygonids examines gill dimensions in relation to neonatal lifestyle and habitat.
Wallice Paxiúba Duncan, Maria Isabel da Silva, Marisa Narciso Fernandes   +2 more
doaj   +1 more source

Ictiólogos de la Argentina: Guillermo Martínez Achenbach. [PDF]

, 2009
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina. The general plan of this work consists of individual factsheets containing a list of works
López, Hugo L., Ponte Gómez, Justina, Virasoro, Carlos A.   +2 more
core  

Potamotrygon motoro

Potamotrygon motoro (Müller & Henle 1841) Distribution tropical S. A., east of Andes. Notes Barriga (1994), Galacatos et al. (2004), Valdiviezo-Rivera et al. (2018), Jácome-Negrete et al. (2018).
Escobar-Camacho, Daniel, Valdiviezo-Rivera, Jonathan, Carrillo-Moreno, Carolina, Argüello, Pablo, Swing, Kelly   +4 more
openaire   +2 more sources

Potamotrygon falkneri Castex, Maciel 1963

, 2018
Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on page 16, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record ...
Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da, Pavanelli, Carla Simone   +3 more
openaire   +2 more sources

Potamotrygon wallacei Carvalho, Rosa & Araujo 2016

, 2023
Potamotrygon wallacei Carvalho, Rosa & Araújo, 2016 Holotype: MZUSP 117809; adult female, 253 mm DW (cited as 264 mm DW in Carvalho et al., 2016), (Fig. 18); Rio Negro, municipality of Barcelos, Amazonas, Brazil, 0°57' 30.24"S, 62°56'14.697"W; depth: not listed; F. Marques et al.; 09 Jan 2011.
Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De   +4 more
openaire   +2 more sources

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

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  

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

Índices parasitários da arraia cururu Potamotrygon cf. histrix da Bacia do médio Rio Negro, Amazonas, Brasil. [PDF]

, 2017
A família Potamotrygonidae é constituída por arraias de vida exclusiva em água doce, encontradas na maioria dos sistemas fluviais da América do Sul.
DIAS, M. T., FERREIRA, W. R., LEMOS, J. R. G., MARCON, J. L., OLIVEIRA, A. T. de, SANTOS, M. Q. de C.   +5 more
core  

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