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Journal Articles Journal of Experimental Biology Year : 2016

New electroantennography method on a marine shrimp in water

Abstract

Antennular chemoreception in aquatic decapods is well studied via the recording of single chemoreceptor neuron activity in the antennule, but global responses of the antennule (or antennae in insects) by electroantennography (EAG) has so far been mainly restricted to aerial conditions. We present here a well-established underwater EAG method to record the global antennule activity in the marine shrimp Palaemon elegans in natural (aqueous) conditions. EAG responses to food extracts, recorded as net positive deviations of the baseline, are reproducible, dose-dependent and exhibit sensory adaptation. This new EAG method opens a large field of possibilities for studying in vivo antennular chemoreception in aquatic decapods, in a global approach to supplement current, more specific techniques.

Dates and versions

hal-01602862 , version 1 (02-10-2017)

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Julia Machon, Juliette Ravaux, Magali Zbinden, Philippe Lucas. New electroantennography method on a marine shrimp in water. Journal of Experimental Biology, 2016, 219 (23), pp.3696-3700. ⟨10.1242/jeb.140947⟩. ⟨hal-01602862⟩
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