Electrosensory prey detection in the African sharptooth catfish, Clarias gariepinus (Clariidae), of a weakly electric mormyrid fish, the bulldog (Marcusenius macrolepidotus)

URN to cite this document:: urn:nbn:de:bvb:355-epub-895
DOI to cite this document:: 10.5283/epub.89

Hanika, Susanne ; Kramer, Bernd

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Date of publication of this fulltext: 05 Aug 2009 13:21

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Abstract

During their seasonal runs in the Okavango and other freshwater bodies in southern Africa, the sharptooth catfish, Clarias gariepinus, specialises on the bulldog, Marcusenius macrolepidotus, as its main prey. We examined whether the catfish can locate bulldogs by detecting their pulse-type electric organ discharges (EODs). The electrosensory threshold for single-cycle, monopolar square-wave ...