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Bivalve mollusk body clock genes may follow tidal rhythms
Updated
Abstract
Oysters exhibit a strong tidal rhythm in their valve behavior alongside a daily rhythm.
- Oysters display tidal rhythmicity in circadian clock genes and related genes.
- A free-running experiment indicates the presence of an endogenous circatidal rhythm.
- In field observations, oysters' valve behavior shows both circatidal and circadian patterns.
- Half of the behavioral rhythms observed in the free-running experiment are circadian in nature.
- The findings suggest that a single circadian/circatidal clock may regulate bivalve behavior at both tidal and daily frequencies.
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