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. 2002;30(4):829-33.
doi: 10.1016/s0273-1177(01)00640-8.

Neuronal feedback between brain and inner ear for growth of otoliths in fish

R H Anken  1 , E Edelmann, H Rahmann
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Neuronal feedback between brain and inner ear for growth of otoliths in fish

R H Anken et al. Adv Space Res. 2002.

Abstract

Previous investigations revealed that fish inner ear otolith growth (concerning otolith size and calcium-incorporation) depends on the amplitude and the direction of gravity, suggesting the existence of a (negative) feedback mechanism. In search for the regulating unit, the vestibular nerve was unilaterally transected in neonate swordtail fish (Xiphophorus helleri) which were subsequently incubated in the calcium-tracer alizarin-complexone. Calcium incorporation ceased on the transected head sides, indicating that calcium uptake is neurally regulated.

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