otolith


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statolith

 [stat´o-lith]
1. a granule of the statoconia.
2. a solid or semisolid body occurring in the labyrinth of animals.

otolith

/oto·lith/ (o´to-lith) statolith.

otolith

(ō′tə-lĭth′)
n.
One of the small calcareous particles found in the inner ear of many vertebrates, especially fishes, which are involved in determining body orientation and sometimes in perceiving sound.

o′to·lith′ic adj.

otolith

[ō′təlith]
Etymology: Gk, ous, ear, lithos, stone
1 a calculus in the middle ear.
2 any of the crystals of calcium carbonate attached to the hair cells of the inner ear as gravity orientation receptors.

otolith

(1) An auditory ossicle. 
(2) A larger calcified concrement within the ear.
(3) A minute calcium carbonate granule located near the sensory hair cell in the inner ear; statolith.

otolith

One of the many tiny calcareous particles found in the utricle and sacculus of the inner ear. These move under gravitational and accelerative forces causing stimulation of hair cells and the production of nerve impulses that provide the brain with information about the position and movement of the head.

otolith

or

otoconium

a granule of calcareous material, several of which occur in the inner ear of vertebrates, where they are attached to processes associated with sensitive cells, and register gravity By means of such sense organs, vertebrates are able to assess their position with respect to gravity.

otolith

an earstone; concretions of calcium carbonate and protein in the labyrinth of the inner ear and which move with every change in the posture of the head. Called also statolith.
References in periodicals archive ?
For many species, the otolith is the preferred structure.
Temperate Utah chub form valid otolith annuli in the absence of fluctuating temperature.
Comparison of age estimates from scale, opercular bone, otolith, vertebrae and dorsal fin ray in Labeo rohita (Hamilton), Catla catla (Hamilton) and Channa marulius (Hamilton).
Photo issued by Susan Philipsz and Tanya Bonakdar Gallery, New York, of an installation view of the artwork, Lowlands, Glasgow Hendrix''s Last Basement, 2001 by Dexter Dalwood Picture: FXP Photography/Gagosian Gallery Stuck, 2010, by Angela De La Cruz, above Picture: CAMDEN ARTS CENTRE A Long Time Between Suns (part I), 2009 by The Otolith Group Picture: MATTHEW BOOTH/ The Otolith Group/ Gasworks
Over the past two years, I have been figuring out how to decipher chemical addresses stored in otoliths using stable isotope chemistry.
The new study examined otoliths, or "ear stones," from nearly 200 Atlantic bluefins caught over a six-year period from both eastern and western stocks.
By examining the material deposited in the otolith, Rooker and his team were able to track the tunas' travels.
Other subjects include ecological and economic effects of climate-induced coral bleaching on coral-reef fishes, otolith chemistry to describe movements and life-history parameters of fish, and paradigms in fisheries oceanography.
After the fish land, the researchers will examine the subjects' otolith organs, which are used to sense gravity and acceleration.
Precipitation was carried out by adding sodium hydroxide solution to otolith solution spiked ytterbium chloride solution (25 [micro]L).