Results 41 to 50 of about 559 (179)
Ichthyofauna Used in Traditional Medicine in Brazil
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 +9 more
wiley +1 more source
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 +2 more
doaj +1 more source
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 +6 more
doaj +1 more source
Trevisan, Bruna, Marques, Fernando P. L. (2017): Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species.
Marques, Fernando P. L. +3 more
core +1 more source
The stingrays Potamotrygon amandae and Potamotrygon falkneri are nonnative species established in the Upper Parana basin. Although they are widely distributed, few studies on their diets or respective metabolic responses exist. Therefore, the aim was to evaluate the dietary composition, trophic niche breadth and lipid/protein concentrations in muscle ...
Cibele Diogo Pagliarini +6 more
openaire +3 more sources
Proposal of a non-lethal visual census method to estimate freshwater stingray abundance
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 +1 more
doaj +1 more source
História natural das raias de água doce (Chondrichthyes: Potamotrygonidae) na Ilha de Marajó (Pará- Brasil) [PDF]
The present study was on the natural history of freshwater stingrays species (Potamotrygonidae) of the Marajó Island. It was carried out in four sampling points (Afuá, Lago Arari, Muaná and Soure) in dry, rainy and transition seasons, in 2005 throughout
ALMEIDA, Mauricio Pinto de
core
TRAFFICKING OF ORNAMENTAL FISH IN THE BRAZILIAN AMAZON
The trafficking of ornamental fish is growing on a yearly basis in the Brazilian Amazon. This represents a serious threat to the biodiversity of the region.
Hélio BELTRÃO +3 more
doaj +3 more sources
SERUM COMPOSITION OF FRESHWATER STRINGRAYS (POTAMOTRYGONIDAE) ADAPTED TO FRESH AND DILUTE SEA WATER
1. Juvenile freshwater stingrays of the family Potamotrygonidae are unable to survive in salinities in excess of 20.6‰ when gradually acclimated.2. No differences were observed in blood pH or hematological parameters when fish adapted to a salinity of 14.5‰ were compared with freshwater controls.3. Significant increases were found in serum sodium (21%),
Griffith, Robert W +3 more
openaire +2 more sources
Mecanismos de transporte iônico nos órgãos osmorregulatórios das arraias de água doce da família Potamotrygonidae [PDF]
Arraias são animais originalmente marinhos, entretanto podemos observar a existência de espécies do gênero habitando o ambiente de água doce da bacia amazônica.
Rubia Neris Machado
core +1 more source

