Results 31 to 40 of about 1,942 (155)
River Research and Applications, Volume 36, Issue 3, Page 452-464, March 2020., 2020 Abstract There are 104 hydroelectric facilities proposed to be installed in the watersheds that feed the Pantanal, a vast floodplain wetland located mostly in Brazil. The Pantanal is host to 23 long‐distance migratory fish species that ascend upland tributaries to spawn.
Marcel Medinas de Campos +5 more
wiley +1 more source
Ciência Rural, 2007 Neste trabalho, foi avaliado o efeito do cozimento das farinhas de milho e trigo na composição corporal e crescimento de piavas. Foram utilizados 300 juvenis (peso no médio inicial=8,03 ± 0,02g), alimentados durante 60 dias, uma vez ao dia (3%PV).
Rafael Lazzari +8 more
doaj +1 more source
A new species of Leporinus Agassiz, 1829 from the upper Rio Paran\ue1 basin (Characiformes, Anostomidae) with redescription of L. elongatus Valenciennes, 1850 and L. obtusidens (Valenciennes, 1837) [PDF]
, 2012 Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens.
Heraldo A. Britski +7 more
core +1 more source
Ecotoxicology and Environmental Safety, 2006 In this study, teleostean fish Leporinus obtusidens (piava) were exposed to different concentrations of Roundup, a glyphosate (acid equivalent) herbicide: 0 (control), 3, 6, 10, and 20 mg/L for 96 h (short-term). Acetylcholinesterase (AChE) activity was verified in brain and muscle tissues.
Lissandra, Glusczak +6 more
openaire +2 more sources
, 2014 Published as part of Litz, Thomas O. & The, Stefan Koerber Introduction, 2014, Check List of the Freshwater Fishes of Uruguay (CLOFF-UY)., pp.
Litz, Thomas O. +1 more
openaire +1 more source
Comparative analysis of sex chromosomes in Leporinus species (Teleostei, Characiformes) using chromosome painting. [PDF]
BMC Genet, 2013 Background: The Leporinus genus, belonging to the Anostomidae family, is an interesting model for studies of sex chromosome evolution in fish, particularly because of the presence of heteromorphic sex chromosomes only in some species of the genus.
Parise-Maltempi PP +6 more
europepmc +4 more sources
Estudo de oito espécies da familia Anostomidae (Pisces, Characiformes) através da análise de RAPD
Acta Scientiarum: Biological Sciences, 2008 A técnica de Polimorfismo de DNA Amplificado ao Acaso (RAPD) foi utilizada na análise de oito espécies de peixe da família Anostomidae, com a finalidade de quantificar a variabilidade genética e estimar a similaridade genética dentro e entre essas ...
Lucimara Chiari +1 more
doaj +1 more source
Different feeding habits influence the activity of digestive enzymes in freshwater fish
Ciência Rural: The aim of this study was to verify the activity of some digestive enzymes in four fish species with different feeding habits. Knowledge of these enzymatic activities can help us to understand the species' digestive processes.
Carolina Rosa Gioda +8 more
doaj +1 more source
Acta Scientiarum: Biological Sciences, 2008 A variabilidade genética de Leporinus lacustris foi estimada a partir de uma população coletada na lagoa do Carão (22o44’S/53o17’W), na planície de inundação do alto rio Paraná.
Maria Dolores Peres, Erasmo Renesto
doaj +1 more source
Prevalência, abundância, intensidade e amplitude de infecção de nematóides intestinais em Leporinus friderici (Bloch, 1794) e L. obtusidens (Valenciennes, 1836) (Pisces, Anostomidae), na represa de Nova Ponte (Perdizes, MG) [PDF]
, 2009 This work determined the prevalence and intensity of infection by intestinal nematodes in Leporinus friderici (Bloch, 1794) and Leporinus obtusidens (Valenciennes, 1836), in the swamp of Nova Ponte, municipality of Perdizes, State of Minas Gerais.
Fernando Pinese, José +3 more
core +1 more source