otoliths
Calcareous deposits or bones found in chambers at the base of the skull in fish (and inner ear of other vertebrates). Sections of these bones frequently show rings or layers which can be used to determine age.

Fisheries — dictionary. . 2004.

Look at other dictionaries:

  • otoliths — əʊtÉ™lɪθ n. statolith, granule in plant and animal cells related to maintenance of balance (Biology) …   English contemporary dictionary

  • otoliths, otolites — Crystalline particles of calcium carbonate and a protein adhering to the gelatinous membrane of the maculae of the utricle and saccule. SYN: statoconia [TA], ear crystals, otoconia, sagitta, statol …   Medical dictionary

  • Otolith — organs showing detail of utricle, ococonia, endolymph, cupula, macula, hair cell filaments, and saccular nerve …   Wikipedia

  • Otolith microchemical analysis — is a technique used in fisheries management and fisheries biology to delineate stocks and characterize movements, and natal origin of fish. The concentrations of elements and isotopes in otoliths are compared to those in the water in which the… …   Wikipedia

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  • Age class structure — in fisheries and wildlife management is a part of population assessment. Age can be determined by counting growth rings in fish scales, otoliths, cross sections of fin spines for species with thick spines such as triggerfish, or teeth for a few… …   Wikipedia

  • Otolithic membrane — The otolithic membrane is a gelatinous membrane located in the vestibular apparatus of the inner ear, and plays an essential role in the brain s interpretation of equilibrium. Both the saccular macula and utricular macula are covered by an… …   Wikipedia

  • Population dynamics of fisheries — A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks… …   Wikipedia

  • half stoned — a gene name for a zebrafish mutation affecting the ear (initially no otoliths or very tiny otoliths, sometimes one or two otoliths present later). See also einstein, what s up, rolling stones, van gogh, among many others …   Dictionary of ichthyology

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