Results 11 to 20 of about 3,591 (200)

Hallux amputation after a freshwater stingray injury in the Brazilian Amazon [PDF]

Revista da Sociedade Brasileira de Medicina Tropical, 2016
: Freshwater stingray injuries are a common problem in the Brazilian Amazon, affecting mostly riverine and indigenous populations. These injuries cause severe local and regional pain, swelling and erythema, as well as complications, such as local ...
Wuelton Marcelo Monteiro, Sâmella Silva de Oliveira, Jacqueline de Almeida Gonçalves Sachett, Iran Mendonça da Silva, Luiz Carlos de Lima Ferreira, Marcus Vinícius Guimarães Lacerda   +5 more
doaj   +5 more sources

First record of plastic ingestion by a freshwater stingray

Science of The Total Environment, 2023
The abundance and dispersion of plastic particles in aquatic ecosystems has become pervasive resulting in the incorporation of these materials into food webs. Here we describe the first record of plastic ingestion by the freshwater white-blotched river stingray Potamotrygon leopoldi (Potamotrygonidae), an endemic and threatened species in the Xingu ...
Trindade, Paulo A A, Brabo, Lúcio D M, Andrades, Ryan, Azevedo-Santos, Valter M, Andrade, Marcelo C, Candore, Laura, Cabigliera, Serena B, Chelazzi, David, Cincinelli, Alessandra, Jeffres, Carson A, Giarrizzo, Tommaso   +10 more
openaire   +5 more sources

A Severe Accident Caused by an Ocellate River Stingray (Potamotrygon motoro) in Central Brazil: How Well Do We Really Understand Stingray Venom Chemistry, Envenomation, and Therapeutics?

Toxins, 2015
Freshwater stingrays cause many serious human injuries, but identification of the offending species is uncommon. The present case involved a large freshwater stingray, Potamotrygon motoro (Chondrichthyes: Potamotrygonidae), in the Araguaia River in ...
Nelson Jorge da Silva, Kalley Ricardo Clementino Ferreira, Raimundo Nonato Leite Pinto, Steven Douglas Aird   +3 more
doaj   +3 more sources

Freshwater stingray injuries in Belém, State of Pará, Brazil

Journal Health NPEPS, 2020
Objective: to describe clinical and epidemiological aspects of freshwater stingray injuries in the city of Belém, Pará, brazilian amazon. Method: descriptive, epidemiological and observational study, carried out between 1999 and 2008, using medical ...
Pedro Pereira de Oliveira Pardal, Wanda Maria Pires, Pedro Borba, Hugo Ferreira, Roberto Messias Oliveira Brito, Elder Oliveira Silva, Katia Cristina Barbaro, Wuelton Marcelo Monteiro   +7 more
doaj   +3 more sources

Molecular and morphological investigations on the renal mechanisms enabling euryhalinity of red stingray Hemitrygon akajei [PDF]

Frontiers in Physiology, 2022
Most cartilaginous fishes live in seawater (SW), but a few exceptional elasmobranchs (sharks and rays) are euryhaline and can acclimate to freshwater (FW) environments. The plasma of elasmobranchs is high in NaCl and urea concentrations, which constrains
Naotaka Aburatani, Wataru Takagi, Marty Kwok-Shing Wong, Marty Kwok-Shing Wong, Shigehiro Kuraku, Shigehiro Kuraku, Shigehiro Kuraku, Chiharu Tanegashima, Mitsutaka Kadota, Kazuhiro Saito, Waichiro Godo, Tatsuya Sakamoto, Susumu Hyodo   +12 more
doaj   +2 more sources

Draft Genome of White-blotched River Stingray Provides Novel Clues for Niche Adaptation and Skeleton Formation [PDF]

Genomics, Proteomics & Bioinformatics, 2023
The white-blotched river stingray (Potamotrygon leopoldi) is a cartilaginous fish native to the Xingu River, a tributary of the Amazon River system. As a rare freshwater-dwelling cartilaginous fish in the Potamotrygonidae family in which no member has ...
Jingqi Zhou, Ake Liu, Funan He, Yunbin Zhang, Libing Shen, Jun Yu, Xiang Zhang   +6 more
doaj   +2 more sources

The influence of environmental bacteria in freshwater stingray wound-healing

Toxicon, 2011
Invasion by bacteria can influence the course of healing of wounds acquired in aquatic environment. In this study, the bacteria present in Potamotrygon motoro stingray mucus and in the Alto Paraná river water were identified, and their ability to induce tissue injury and resist antibiotics was determined. Biochemical identification analysis showed that
Domingos, Marta O., Franzolin, Márcia R., dos Anjos, Marina Tavares, Franzolin, Thais M.P., Barbosa Albes, Rosely Cabette, de Andrade, Gabrielle Ribeiro, Lopes, Rossivan J.L., Barbaro, Katia C.   +7 more
openaire   +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

A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae) [PDF]

Papéis Avulsos de Zoologia, 2011
Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira basin. The new species is distinguished from all congeners by a unique combination of characters, including its dorsal color pattern formed by a relatively ...
João Paulo C.B. da Silva, Marcelo R. de Carvalho   +1 more
doaj   +5 more sources

Functionally Rich Fish Assemblages Support Greater Rates of Multiple Ecological Functions in Seagrass Meadows. [PDF]

Ecol Evol
We show that the functional diversity of fishes promotes multifunctionality in seagrass meadows. We found that there was consistency in the seascape context and connectivity variables that structured the rate and distribution of different components of functioning and the functional diversity of fish in seagrass meadows.
James AL, Gilby BL, Olds AD, Mosman JD, Hill JT, Henderson CJ.   +5 more
europepmc   +2 more sources