The anatomical location of the control centre(s) for the endogenous tidal rhythm of swimming activity shown by Corophium volutator (Pallas) has been investigated using a selective chilling technique.
Rephasing occurred on chilling the whole animal to −3 °C or on chilling either the supra- or sub-oesophageal ganglion alone, whereas cold pulses applied to the telson or mid-body regions were without effect.
Ablating the eyes had no effect on the endogenous rhythm.
The results are interpreted in terms of two autonomous control centres.
The Location of Circa-Tidal Pacemakers in the Estuarine Amphipod Corophium Volutator Using a Selective Chilling Technique
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GERARD J. HARRIS, ELFED MORGAN; The Location of Circa-Tidal Pacemakers in the Estuarine Amphipod Corophium Volutator Using a Selective Chilling Technique. J Exp Biol 1 May 1984; 110 (1): 125–142. doi: https://doi.org/10.1242/jeb.110.1.125
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