Search results
Results from the WOW.Com Content Network
Otoliths (sagittae) are bilaterally symmetrical, with each fish having one right and one left. Separating recovered otoliths into right and left, therefore, allows one to infer a minimum number of prey individuals ingested for a given fish species. Otolith size is also proportional to the length and weight of a fish.
Otolithes was proposed as the genus name in 1817 by Oken based on Georges Cuvier's les otolithes of 1816. Cuvier explained in 1830 that this was based on the peche-pierre, a name meaning "peach stone" which was used by French and Portuguese colonial settlers in Pondicherry and refers to the large otoliths of Johnius ruber.
The otoliths begin to form shortly after the fish hatches. Otoliths are composed of a crystalline calcium carbonate structure, in the form of aragonite, on a protein matrix. Calcium carbonate is diffused through the endolymph cell membrane and the aragonite layers are permanently deposited in discrete increments. These increments are ...
Otolithes ruber, commonly known as the tigertooth croaker, silver teraglin, wiretooth, snapper kob, snapper salmon, Yankee whiting or Yankee salmon is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers.
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
It is probably caused when pieces that have broken off otoliths have slipped into one of the semicircular canals. In most cases, it is the posterior canal that is affected. In certain head positions, these particles shift and create a fluid wave which displaces the cupula of the canal affected, which leads to dizziness, vertigo and nystagmus.
This membrane is weighted with calcium carbonate-protein granules called otoliths. The otolithic membrane adds weight to the tops of the hair cells and increases their inertia. The addition in weight and inertia is vital to the utricle's ability to detect linear acceleration, as described below, and to determine the orientation of the head. [3]
Siphamia is a genus of cardinalfishes native to the Indian and Pacific Ocean.Several of these species are commensal with various species of sea urchins.. Siphamia minor, a dwarf otolith-based species from the Burdigalian (Miocene) of southwestern India is the only fossil record for this genus.