Results 21 to 30 of about 23,196 (252)

Effect of voltage gradient in an electrical field on threshold indices of fish response [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1991
The work presents experimental methods and effect of an electric field of alternating current potential changes on threshold values of some fish species from the Volga delta response.
E.T. Prel
doaj   +3 more sources

Adaptive shift of active electroreception in weakly electric fish for troglobitic life

open access: yesFrontiers in Ecology and Evolution, 2023
The adaptive-shift hypothesis for the evolution of cave-dwelling species posits that ancestor species in surface habitats had exaptations for subterranean life that were exploited when individuals invaded caves.
Daphne Soares   +3 more
doaj   +1 more source

Electrostatic Tuning of a Potassium Channel in Electric Fish [PDF]

open access: yesCurrent Biology, 2018
Alfredo Ghezzi   +2 more
exaly   +2 more sources

Preoptic Area Activation and Vasotocin Involvement in the Reproductive Behavior of a Weakly Pulse-Type Electric Fish, Brachyhypopomus gauderio

open access: yesFrontiers in Integrative Neuroscience, 2019
Social behavior exhibits a wide diversity among vertebrates though it is controlled by a conserved neural network, the social behavior network (SBN). The activity of the SBN is shaped by hypothalamic nonapeptides of the vasopressin-oxytocin family.
Paula Pouso   +5 more
doaj   +1 more source

Studied on Detection Methods and Changes of Polycyclic Aromatic Hydrocarbons in Instant Roasted Fish with Different Processes

open access: yesShipin gongye ke-ji, 2022
Objective: In order to establish the detection method for 16 kinds of polycyclic aromatic hydrocarbons (PAHs) in instant roasted fish, the effects of different cooking methods on the types and contents of PAHs in roast fish were analyzed.
Yan ZHANG   +5 more
doaj   +1 more source

Population Coding and Correlated Variability in Electrosensory Pathways

open access: yesFrontiers in Integrative Neuroscience, 2018
The fact that perception and behavior depend on the simultaneous and coordinated activity of neural populations is well established. Understanding encoding through neuronal population activity is however complicated by the statistical dependencies ...
Volker Hofmann, Maurice J. Chacron
doaj   +1 more source

Tension changes in body of bream Abramis brama (L.) in homogenous electric field in relation to flow direction of direct current and to total length of fish [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1972
Body tension of bream Abramis brama (L.) in homogenous electric field of DC current in relation to direction of current flow and to fish length had been investigated under aquarium conditions.
R. Węgrzynowicz   +2 more
doaj   +3 more sources

A JAR of Chirps: The Gymnotiform Chirp Can Function as Both a Communication Signal and a Jamming Avoidance Response

open access: yesFrontiers in Integrative Neuroscience, 2019
The weakly electric gymnotiform fish produce a rhythmic electric organ discharge (EOD) used for communication and active electrolocation. The EOD frequency is entrained to a medullary pacemaker nucleus. During communication and exploration, this rate can
Caitlin E. Field   +4 more
doaj   +1 more source

Dimorfismo sexual em Siluriformes e Gymnotiformes (Ostariophysi) da Amazônia Sexual dimorfism in Amazonian Siluriformes and Gymnotiformes (Ostariophysi)

open access: yesActa Amazonica, 2005
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel   +1 more
doaj   +1 more source

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