Results 71 to 80 of about 19,313 (296)
Ichthyological ecoregions of Argentina [PDF]
, 2002 The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis +2 more
core
An Insight into the Chromosomal Evolution of Lebiasinidae (Teleostei, Characiformes)
Genes, 2020 Lebiasinidae fishes have been historically neglected by cytogenetical studies. Here we present a genomic comparison in eleven Lebiasinidae species, in addition to a review of the ribosomal DNA sequences distribution in this family.
Francisco M C Sassi +13 more
semanticscholar +1 more source
Journal of Fish Biology, EarlyView.Abstract This study aimed to investigate how exposure to elevated water temperature and metal concentration jointly affect the physiology of Amazonian fish. Aboard a research vessel in the Amazon, we evaluated the effects of water temperature (river T°C at 31.5°C and a + 4°C increase to 35.5°C) and of 3‐h copper (Cu) exposure (up to 600 μg/L) in ...
Anne Crémazy +6 more
wiley +1 more source
Comparing lacustrine environments: the importance of the kind of habitat on the structure of fishes
Acta Limnologica Brasiliensia, 2018 Aim Fish diversity in two lentic environments: a lake connected (Barbosa lake) to a river and an artificial reservoir (Ninfeias reservoir) were determined in the dry and rainy periods in 2015. We expected to find more diversity in the connected lake and
Reinaldo José de Castro +3 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert +5 more
wiley +1 more source
Neotropical Ichthyology, 2020 Pacus of the genus Myloplus represent a formidable taxonomic challenge, and particularly so for the case of M. asterias and M. rubripinnis, two widespread and common species that harbor considerable morphological diversity.
R. P. Ota +5 more
semanticscholar +1 more source
Journal of Fish Biology, EarlyView.Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck +5 more
wiley +1 more source
Digest: Resolving phylogenomic conflicts in characiform fishes† [PDF]
Evolution, 2019 How can taxonomists best resolve the challenge of curating and analyzing large phylogenomic datasets that produce incongruent but highly supported topologies? Betancur-R et al. used a recently established hypothesis-testing procedure on a large dataset of genes and species to study the evolutionary relationships of characiform fishes, finding that past
Santiago Montero‐Mendieta, Arjun Dheer
openaire +1 more source
Fish, Ribeirão do Feijão Basin, São Carlos, São Paulo, Brazil [PDF]
Check List, 2008 The Ribeirão do Feijão Basin is the main water supplier for the municipality of São Carlos, in the state of São Paulo, Brazil. Field work was carried out from February to November 2005, using sieves, casting nets, and drag nets.
Oscar Shibatta, Ângela Silva-Souza
doaj +5 more sources
DiversityCharaciformes, a highly diverse group, are of great economic and ecological significance; however, their complex morphological convergence and adaptive radiation pose challenges to taxonomy, and phylogenetic controversies remain.
Hongjian Chen +3 more
doaj +1 more source