Circatidal and circadian rhythms of locomotion in Limulus polyphemus. From: The Biological Bulletin | Date: August 1, 2004| Author: Chabot, Christopher C.; Kent, Jeffrey; Watson, Winsor H. | COPYRIGHT 2004 Marine Biological Laboratory. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

The nocturnal increases in the sensitivity of the lateral eye of Limulus polyphemus, the species of horseshoe crab found along the Atlantic coast, have been firmly established as being controlled by an endogenous circadian clock (1, 2, 3) located in the brain (4). Virtually nothing is known, however, about the control of the animal's behavioral rhythms of mating and spawning that are observed in the intertidal zone during high tides in late spring (5, 6, 7). Many other marine speci...

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