Results 1 to 10 of about 2,086 (206)
Genetic characterization of the Neotropical catfish Pimelodus maculatus (Pimelodidae, Siluriformes) in the Upper Uruguay River [PDF]
Genetics and Molecular Biology, 2012 Freshwater fish present unique challenges when one attempts to understand the factors that determine the structure of their populations. Habitat fragmentation is a leading cause of population decline that threatens ecosystems worldwide. In this study, we
Josiane Ribolli +2 more
doaj +7 more sources
Food Characterization of the Spotted Pimelodid Fish Pimelodus Maculatus From a Polluted Urban River in Argentina [PDF]
Journal of Tropical Life Science, 2015 On the present study, the nourishment and the digestive system of a population of the spotted pimelodid Pimelodus maculatus Lacepède 1803 from a polluted urban river in Argentina were analyzed (Reconquista River, Buenos Aires province). The specimens are
D'Alessandro, M. F. (Maria) +3 more
core +5 more sources
Swimming performance of the freshwater neotropical fish: Pimelodus maculatus Lacepède, 1803 [PDF]
Brazilian Journal of Biology, 2008 The present study used fixed and increasing velocity tests in an experimental apparatus based on Brett's respirometer to examine prolonged and sustained speeds of the "mandi-amarelo", Pimelodus maculatus. When comparing the curves of critical speed versus total length between the mandi and the sockeye salmon Oncorhynchus nerka, it is observed that for ...
Hersília Andrade Santos +1 more
exaly +6 more sources
Brazilian Archives of Biology and Technology, 2006 The genetic variability of four fish species (Pimelodus maculatus, Prochilodus lineatus, Salminus brasiliensis and Steindachneridion scripta) collected in the upper Uruguay River basin was analyzed using the RAPD technique.
Alex Pires de Oliveira Nuñer +1 more
exaly +3 more sources
Structural analysis of the Pimelodus maculatus (Lacépède, 1803) embryogenesis (Siluriformes: Pimelodidae) [PDF]
Neotropical Ichthyology, 2011 The fish embryonic development comprises the events between the egg fertilization up to larvae hatching, being useful for the identification of viable eggs in productivity and survival studies as well as in raising experiments of several species.
Rosicleire Verissimo-Silveira +1 more
exaly +7 more sources
Stress in Pimelodus maculatus (Siluriformes: Pimelodidae) at different densities and times in a simulated transport [PDF]
Zoologia (Curitiba), 2014 The transportation of live fish is a routine procedure in aquaculture, and includes a series of stressful stimuli such as an increase in the stocking density of specimens per volume of water, and abrupt changes in water quality.
Neiva Braun +1 more
doaj +3 more sources
Genetics and Molecular Biology, 2003 Pimelodus maculatus populations from the Tietê and Paranapanema rivers were sampled and had their genetic structure analyzed by using RAPD markers, with the aim of contributing to future conservation studies.
Fernanda S Almeida +1 more
exaly +3 more sources
Aquaculture ReportsThis study explored ultrasonography, exfoliative cytology, and celiotomy as methods for sex determination in Pimelodus maculatus, a species included in fish-stocking programs aimed at conserving and recovering populations affected by hydroelectric power ...
Jackellynne Fernanda Farias Fernandes +4 more
doaj +2 more sources
Growth of Pimelodus maculatus (Actinopterygii, Pimelodidae) in cages at different stocking densities [PDF]
Biotemas, 2009 This study aimed to evaluate the influence of densities 8, 32, 56 and 80 fish/m3 on the productive performance of Pimelodus maculatus in 1m3 cages installed in 0.19ha earthen ponds without water renewal, located on private property in Santo Amaro da ...
Saula Corrêa Afonso de Almeida +1 more
doaj +1 more source
DESENVOLVIMENTO EMBRIONÁRIO E ESTÁGIOS LARVAIS DO MANDI-AMARELO Pimelodus maculatus
Boletim do Instituto de Pesca, 2018 O conhecimento dos estágios iniciais do desenvolvimento embrionário de peixes é de extrema importí¢ncia para o estudo de espécies nativas com potencial para a piscicultura.
Ronald Kennedy LUZ +3 more
doaj +1 more source