Faculty Advisor

Gibson, Daniel Gilbert

Abstract

Stimulation of the ventral photoreceptors of first-year juvenile horseshoe crabs by shining light on them from below, through a transparent substrate, reliably induced the animals to flip over, reorienting to keep the stronger light (ratio approx. 2:1) on the top of the body. Two-year-olds ignored the same stimulus, but did react to a much stronger light source. The results indicate that the smaller juveniles rely on their ventral photoreceptors to stay upright, having no known organs of balance.

Publisher

Worcester Polytechnic Institute

Date Accepted

January 2000

Major

Biology

Project Type

Major Qualifying Project

Accessibility

Restricted-WPI community only

Advisor Department

Biology and Biotechnology

Advisor Program

Biology and Biotechnology

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