Range of electrosensory detection of prey by Carcharhinus melanopterus and Himantura granulata

Haine, Olivia S., Ridd, Peter V., and Rowe, Richard J. (2001) Range of electrosensory detection of prey by Carcharhinus melanopterus and Himantura granulata. Marine and Freshwater Research, 52 (3). pp. 291-296.

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Elasmobranch fishes have a well developed electrosense that is used for prey detection. Research into the nature of bioelectric cues emitted by prey has, however, been neglected, and consequently the spatial context in which the electrosense operates to detect and home in on prey is not completely understood. This study provided data on both ac and dc electric potentials produced by teleost, crustacean and bivalve prey, as well as measured the decay rates of electric field strength with distance. The electrosensitivity of two tropical elasmobranch species was calculated to be ~4 nV cm–1, from which it was calculated that these predators probably detect their prey at a range of ~0. 25 m.

Item ID: 13308
Item Type: Article (Refereed Research - C1)
ISSN: 1448-6059
Date Deposited: 30 Jul 2012 05:17
FoR Codes: 06 BIOLOGICAL SCIENCES > 0699 Other Biological Sciences > 069999 Biological Sciences not elsewhere classified @ 51%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 49%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 51%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960802 Coastal and Estuarine Flora, Fauna and Biodiversity @ 49%
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