Results 21 to 30 of about 180 (97)

Record of the freshwater stingrays Potamotrygon brachyura and P. motoro (Chondrichthyes, Potamotrygonidae) in the lower Uruguay river, South America Registro das raias de água doce Potamotrygon brachyura e P. motoro (Potamotrygonidae) no baixo rio Uruguai, America do Sul

Acta Amazonica, 2012
Freshwater stingrays, or potamotrygonids, are restricted to Neotropical river drainages. These elasmobranchs are well adapted to freshwater environments and the number of described species gradually increases as further research is carried out.
María Cristina Oddone, Gonzalo Velasco, Patricia Charvet   +2 more
doaj   +1 more source

Trends in Medicinal Uses of Edible Wild Vertebrates in Brazil

Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
The use of food medicines is a widespread practice worldwide. In Brazil, such use is often associated with wild animals, mostly focusing on vertebrate species. Here we assessed taxonomic and ecological trends in traditional uses of wild edible vertebrates in the country, through an extensive ethnobiological database analysis. Our results showed that at
Rômulo Romeu Nóbrega Alves, Tacyana Pereira Ribeiro Oliveira, Maria Franco Trindade Medeiros, Ghee T. Tan   +3 more
wiley   +1 more source

Ichthyofauna Used in Traditional Medicine in Brazil

Evidence-Based Complementary and Alternative Medicine, Volume 2012, Issue 1, 2012., 2012
Fish represent the group of vertebrates with the largest number of species and the largest geographic distribution; they are also used in different ways by modern civilizations. The goal of this study was to compile the current knowledge on the use of ichthyofauna in zootherapeutic practices in Brazil, including ecological and conservational commentary
Ana Carla Asfora El-Deir, Carolina Alves Collier, Miguel Santana de Almeida Neto, Karina Maria de Souza Silva, Iamara da Silva Policarpo, Thiago Antonio S. Araújo, Rômulo Romeu Nóbrega Alves, Ulysses Paulino de Albuquerque, Geraldo Jorge Barbosa de Moura, Maria Franco Trindade Medeiros   +9 more
wiley   +1 more source

Forensic Application of Cytb and COI Genes for Freshwater stingray Identification: A Seizure Case in Bogotá, Colombia

Revista Científica
Freshwater stingrays of the Potamotrygonidae family are highly valued in the international market as ornamental fish, leading to growing demand and economic significance. In Colombia, despite legal regulations aimed at protecting these animals and their
Lisbeth Gelvez, Ana Cuellar, María Gómez, Jorge Oliveros, Paola Alméciga–Diaz, Myreya Pinedo–Castro, John Infante–González   +6 more
doaj   +1 more source

Proposal of a non-lethal visual census method to estimate freshwater stingray abundance

Universitas Scientiarum, 2016
There is not a current method to estimate South American freshwater stingray’s abundance. Therefore we designed a census method and tested it in the field.
Mónica Andrea Morales-Betancourt, Carlos Andrés Lasso-Alcalá   +1 more
doaj   +1 more source

Ornamental fishing in the region of Barcelos, Amazonas: socioeconomic description and scenario of activity in the view of “piabeiros” [PDF]

Brazilian Journal of Biology, 2019
The Negro river basin is considered the largest area of extractive of ornamental fish in Brazil. This area has fundamental importance for the populations from the Amazon.
D. S. Ladislau, M. W. S. Ribeiro, P. D. S. Castro, P. H. R. Aride, A. J. V. Paiva, M. F. Polese, A. B. Souza, L. A. Bassul, H. D. Lavander, A. T. Oliveira   +9 more
doaj   +1 more source

Spatiotemporal eDNA Monitoring of Marine Biodiversity in a Hyperurbanised Coastal Environment

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Using environmental DNA and a metabarcoding approach, we amplified and sequenced the cytochrome oxidase subunit I (COI) gene for invertebrates and the 16S rRNA gene for vertebrates. Our spatiotemporal analyses over a year and across four sites in Singapore revealed distinct communities between sites and timepoints for both the COI and 16S rRNA assays ...
Zhi Ting Yip, Zheng Bin Randolph Quek, Danwei Huang   +2 more
wiley   +1 more source

Bioecología de la raya de agua dulce Potamotrygon magdalenae (Duméril, 1865) (Myliobatiformes) en la Ciénaga de Sabayo, Guaymaral, Colombia

Revista U.D.C.A Actualidad & Divulgación Científica, 2011
A pesar de la representatividad de Potamotrygon magdalenae en Colombia, por encontrarse a lo largo de la cuenca del río Magdalena y sus afluentes, esta raya no ha sido objeto de estudios previos, desconociéndose la mayor parte de sus aspectos bio ...
Herly Bibiana Ramos Socha, Marcela Grijalba Bendeck   +1 more
doaj   +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

Aplicación del modelo de pérdida de ADN para el diseño de cebadores en Potamotrygon magdalenae (Potamotrygonidae)

Acta Biológica Colombiana, 2021
El diseño de cebadores es fundamental para amplificar regiones de genes debido a que la especificidad que mantienen cebador-secuencia de interés puede causar el éxito o fracaso en la reacción de PCR.
Iván Yesid López-Ardila, Francisco José Martínez-Pérez, Fernando Rondón-González   +2 more
doaj   +1 more source