Electrosensory optimization to conspecific phasic signals for mating

  title={Electrosensory optimization to conspecific phasic signals for mating},
  author={Timothy C. Tricasa and Scott W. Michael and Joseph A. Sisneros},
  journal={Neuroscience Letters},
Electroreception: Strategies for Separation of Signals from Noise
The electrosensory world of fishes is rich with electric fields from a multitude of sources includ- ing the earth’s magnetic field and the bodies of all aquatic organisms including the electrosensing fish, itself.
Ontogenetic Changes in the Response Properties of the Peripheral Electrosensory System in the Atlantic Stingray (Dasyatis sabina)
During development electrosensory primary afferents increase resting discharge regularity, show an upward shift in best frequency, an increase in neural sensitivity, and a decrease in bandpass, which are consistent with sensory adaptations to enhance the avoidance of large predators as young, and increase the location of prey and mates as adults.
Ecological Functions and Adaptations of the Elasmobranch Electrosense
The electrosense response properties are seasonally modified by the periodic expression of gonadal steroids and may serve important modulation of sensory function during reproductive behaviors and are proposed to reflect ontogenetic adaptations to their changing environments.
Electroreceptors and Magnetoreceptors
Electroreception: Extracting Behaviorally Important Signals from Noise
The specializations of receptors and CNS so well developed in these fishes allow us to recognize important general principles operating in other sensory systems and in other vertebrates.
Signals and noise in the elasmobranch electrosensory system
Analyzing signal and noise for any sensory system requires an appreciation of the biological and physical milieu of the animal and the principal electrosensory neurons (ascending efferent neurons; AENs) of the dorsal octavolateralis nucleus show a greatly reduced response to common-mode signals.
Adaptation of the Rostral Ampullary Electrosense for Plankton Feeding by the Paddlefish
Direct innervation of the tectum from the DON is unique to the paddlefish and may reflect dominance of the electrosensory system in tectal orientation, a mechanism essential for prey localization and capture.
Molecular basis of ancestral vertebrate electroreception
It is shown that the voltage-gated calcium channel CaV1.3 and the big conductance calcium-activated potassium (BK) channel are preferentially expressed by electrosensory cells in little skate and functionally couple to mediate electrosensing cell membrane voltage oscillations, which are important for the detection of specific, weak electrical signals.
Neuroethology and life history adaptations of the elasmobranch electric sense


Suppression of Ventilatory Reafference in the Elasmobranch Electrosensory System: Medullary Neuron Receptive Fields Support a Common Mode Ejection Mechanism
It is shown that in the carpet shark, Cephaloscylium isabella, as in two previously studied batoid species, this ventilatory ‘noise’ is reduced by sensory processing within the medullary nucleus of the electrosensory system.
Sexual differences in the auditory system of the tree frog Eleutherodactylus coqui.
Acoustic playback experiments with calling males in their natural habitat and two-choice orientation experiments with females indicate that males and females of the neotropical tree frog
Frequency characteristics of the electroreceptive system in Scyliorhinus canicula were determined both by electrophysiological recording of the primary afferent responses and by optical recording of respiratory reflexes after electrical stimulation, concluding that the low pass filter properties are not imposed by the time constant of the ampulla wall.
The Detection of Electric Fields from Inanimate and Animate Sources Other Than Electric Organs
To establish and analyze this role, a basic knowledge of the natural electric fields and the information they provide is an essential prerequisite and whether the information is of biological significance to electrosensitive animals must be determined by appropriate behavioral experiments.
The response of the ampullae of Lorenzini of elasmobranchs to electrical stimulation.
1. The ampullae of Lorenzini are sensitive to weak tactile stimulation applied to the ends of their jelly-filled tubes. 2. Either an increase or a decrease in their resting discharge frequency may
The electric sense of sharks and rays.
  • A. Kalmijn
  • Environmental Science
    The Journal of experimental biology
  • 1971
The experiments described demonstrate clearly that the shark Scyliorhinus canicula and the ray Raja clavata make a biologically significant use of their electrical sensitivity and are justified in accrediting the animals with an electric sense and in designating the ampullae of Lorenzini as electroreceptors.
Sensory Biology of Aquatic Animals
This volume constitutes a series of invited chapters based on presentations given at an International Conference on the Sensory Biology of Aquatic Animals held June 24-28, 1985 at the Mote Marine
Detection of Weak Electric Fields
Electric fields in natural waters present a wealth of sensory information. Bioelectric fields direct electrosensitive fishes to their prey, environmental fields provide important orientational cues,