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Biophysical Journal 63: 591-593 (1992)
© 1992 the Biophysical Society

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Magnetic and electric characteristics of the electric fish Gymnotus carapó.

O Baffa and S L Côrrea

Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, University of São Paulo, Brazil.

ABSTRACT

The fresh water fish Gymnotus carapó produces a continuous series of weak pulsed electric fields in its surroundings and senses disturbances of this field as part of its sensory system. The electric and magnetic properties of the electric organ of this fish were studied. Magnetic fields close to the fish on the order of nT are produced by currents on the order of 10(-4) A in the electric organ of the fish. The electromotive force, the internal resistance, the current, and the electric power of the equivalent circuit were determined noninvasively.




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S Schuster
Changes in electric organ discharge after pausing the electromotor system of Gymnotus carapo
J. Exp. Biol., January 5, 2000; 203(9): 1433 - 1446.
[Abstract] [PDF]


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Copyright © 1992 by the Biophysical Society.