Results 71 to 80 of about 3,173 (211)
Ichthyofauna sampled with tadpoles in northeastern Maranhão state, Brazil [PDF]
Check List, 2015 The Neotropic region has high fish diversity associated with freshwater habitats. However, for Maranhão state, most publications on the ichthyofauna concentrate on coastal or estuarine ecosystems. In this study, species of fish were sampled in lentic and
Rodrigo Matavelli +4 more
doaj +3 more sources
Fish, Corumbataí and Jacaré-Pepira river basins, São Paulo State, Brazil [PDF]
, 2006 Fish were studied in two river basins (Corumbataí and Jacaré-Pepira) subjected to strong human pressure, in the interior of the State of São Paulo, southeastern Brazil.
Braga, F. M. S., Gomiero, L. M.
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Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña +7 more
wiley +1 more source
Diet of the electric knife-fishes, Gymnotus omarorum, is described in Laguna Blanca Río Pilcomayo National Park, Formosa province [PDF]
, 2014 Se describe la dieta de la morena, Gymnotus omarorum, en Laguna Blanca Parque Nacional Río Pilcomayo, Formosa. Se realizaron 8 muestreos desde septiembre de 2012 hasta julio de 2013. Para el análisis de los contenidos estomacales se utilizaron métodos de
Ferriz, Ricardo Alberto +1 more
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Comunicación eléctrica en peces sudamericanos
Iatreia, 2005 Los Gymnotiformes, peces eléctricos americanos de descarga débil, poseen un refinado ";Sentido Electrosensorial Activo"; que les permite explorar su medio ambiente y comunicarse.
Ana Silva, Oscar Macadar
doaj
Design and construction of an Electric Fish Finder
Neotropical IchthyologyWe provide notes on the design and construction of an Electric Fish Finder - a portable differential amplifier for detecting the electrostatic fields of gymnotiform knifefishes.
William G. R. Crampton +3 more
doaj +1 more source
Brazilian Archives of Biology and Technology, 2009 This study described the reproductive biology of a population of the weakly electric fish Eigenmannia trilineata from southern Brazil, providing the information on the estimation of reproductive period, fecundity, spawning type, first maturation size ...
Júlia Giora, Clarice Bernhardt Fialho
doaj +1 more source
Functional Ecology, Volume 39, Issue 8, Page 1940-1956, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Tropical freshwater fishes are often exposed to hypoxia, which limits aerobic metabolism and drives the evolution of diverse physiological, behavioural and morphological adaptations.
William G. R. Crampton +4 more
wiley +1 more source
On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium [PDF]
, 2001 There has been much controversy concerning the identity of the components of the suspensorium in Siluriformes (catfishes). This confusion has implications not only for comparative morphology, but also for phylogenetic studies.
Chardon, M., Diogo, R., Oliveira, C.
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Environmental DNA, Volume 7, Issue 4, July–August 2025.Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra +5 more
wiley +1 more source