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 ?
The data of salinity, fish total length and otolith weight were described in the form of mean and standard deviation.
Results from analysis indicated an inverse relationship between the environmental temperature and values of otolith [[delta].
Asteriscus otoliths were flaky, so only the lapillus otolith with a clear pattern of alternating zones could be used for age estimation.
We examined scats for presence of Asian carp otoliths and pharyngeal teeth and calculated their percentage occurrence in the otter's diet.
In addition, otolith microscopic examination and measurements are often used to differentiate fish stocks (Tuset et al.
In Brazil, studies focused on the description of the sagitta otolith being: Sciaenidae (CORREA; VIANA, 1992), Carangidae (ABILHOA; CORREA, 1992), Gerreidae (LEMOS et al.
Otoliths were measured (otolith length - OL) and photographed in pairs in a way that both sides were visible.
To determine the relationship between otolith radius (OR) and FL we used the regression: FL=[aOR.
Data on length and width were registered for each otolith through their observation in a stereoscopic microscope with a graduated ocular lens.
If readers disagreed on age of an otolith, the otolith was later re-read by both observers together.
Previous otolith studies have focused on age and growth; however, analyses have increasingly developed beyond the otoliths' chronological capabilities to explore microstructure and chemistry (Begg et al.