Results 21 to 30 of about 209 (139)
Comparing the performance of 12S mitochondrial primers for fish environmental DNA across ecosystems
Environmental DNA, Volume 3, Issue 6, Page 1113-1127, November 2021., 2021 We propose a framework for comparing the performance of primer pairs, which we applied to the comparison of two fish eDNA primer pairs, teleo and MiFish‐U. We showed how those primer pairs could be best used together to increase diversity coverage of eDNA studies.
Andrea Polanco F. +12 more
wiley +1 more source
Anais da Academia Brasileira de Ciências, 2021 In the Xingu river basin, Brazil, occurs two genera of Potamotrygonidae family: Potamotrygon and Paratrygon. In this region, the taxa have significant economic importance for the ornamental fishing industry, being intensively captured, especially the ...
DAMIRES SANCHES +10 more
doaj +1 more source
Journal of Fish Biology, Volume 99, Issue 4, Page 1158-1189, October 2021., 2021 ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre +15 more
wiley +1 more source
Revista da Sociedade Brasileira de Medicina Tropical, 2023 Venomous fish are commonly found in Brazilian waters. The most important marine venomous fish species are stingrays (Dasyatidae, Gimnuridae, Myliobatidae, and Rhinopteridae families), catfish (Ariidae family), scorpionfish and lionfish (both Scorpaenidae
Vidal Haddad Junior +1 more
doaj +1 more source
Biota Colombiana, 2010 The presence of the Plesiotrygon iwamae (Chondrichthyes: Potamotrygonidae) in Colombia is confirmed, based on a male specimen collected in the Amazon River and must be alert about their conservation status in the Amazon region.
Carlos A. Lasso +2 more
doaj +1 more source
Genetics and Molecular Biology, 2008 DNA barcoding is a recently proposed global standard in taxonomy based on DNA sequences. The two main goals of DNA barcoding methodology are assignment of specimens to a species and discovery of new species.
Daniel Toffoli +5 more
doaj +1 more source
Neotropical Ichthyology, 2021 The genus Paratrygon, currently recognized as the sole monotypic genus of the family Potamotrygonidae, has a considerably greater diversity than previously indicated, including molecular studies, which supported P.
Thiago Silva Loboda +3 more
doaj +1 more source
Revista da Sociedade Brasileira de Medicina Tropical, 2010 INTRODUÇÃO: No presente trabalho objetivamos descrever o processo de colonização da Bacia do Alto Paraná, Sudeste do Brasil, por arraias, demonstrando sua atual situação e provável tendência, os impactos gerados e discutindo algumas ações de manejo e ...
Domingos Garrone Neto +1 more
doaj +1 more source
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 +2 more
doaj +1 more source
Systematic implications of brain morphology in potamotrygonidae (Chondrichthyes: Myliobatiformes)
Journal of Morphology, 2015 ABSTRACTThe gross brain morphology, brain proportions, and position of cranial nerves in all four genera (Potamotrygon, Plesiotrygon, Paratrygon, and Heliotrygon) and 11 of the species of the Neotropical stingray family Potamotrygonidae were studied to provide new characters that may have a bearing on internal potamotrygonid systematics.
João Pedro, Fontenelle +1 more
openaire +5 more sources