| 1. | The vestibular system consists of the otolith organs and the semicircular canals.
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| 2. | The oldest known individual was 11 years old based on otolith rings.
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| 3. | Otolith size is also proportional to the length and weight of a fish.
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| 4. | A statocyst with a single otolith is attached dorsally to each pedal ganglion.
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| 5. | Otolith microchemistry has been used to accurately identify estuarine nursery areas of fish.
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| 6. | However, some studies disprove a direct link between body growth and otolith growth.
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| 7. | Otolith microstructural studies exist for 50 families and 135 species of fish and squid.
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| 8. | In recent years otolith microchemistry has shown that this is not always the case.
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| 9. | This relationship is clearly evident in otolith chemistry.
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| 10. | The calcium carbonate that the otolith is composed of is primarily derived from the water.
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