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Life Sciences

Animal Science

University of New Hampshire

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The Possible Role Of Extra-Ocular Photoreceptors In The Entrainment Of Lobster Circadian Rhythms To Light:Dark Cycles, Sara A. Mckinney Apr 2013

The Possible Role Of Extra-Ocular Photoreceptors In The Entrainment Of Lobster Circadian Rhythms To Light:Dark Cycles, Sara A. Mckinney

Honors Theses and Capstones

The American lobster, Homarus americanus, is a decapod crustacean whose daily nocturnal rhythms of activity are driven, in part, by an internal biological clock. While this circadian clock is capable of producing a rhythm of approximately 24 hours on its own, it can also be entrained to light:dark cycles. Recent findings in our laboratory suggest that lobsters have photosensitive neurons throughout their nervous system (extra-ocular photoreceptors). The objective of this research was to test the hypothesis that these extra-ocular photoreceptors aid in entraining their daily rhythm of activity. First, the locomotion of juvenile American lobsters was measured in trials under …


Biosecurity Risk Assessment Of The Fairchild Dairy Nutrition Research Center, Margaret Lynch Oct 2012

Biosecurity Risk Assessment Of The Fairchild Dairy Nutrition Research Center, Margaret Lynch

Honors Theses and Capstones

No abstract provided.