Do Intertidal Organisms Use the Color of Light to Find Different Depths?
Peabody Charter School Teacher: Claire Poissonniez Scientists: Shinichi Asao, Robin Pelc and Gerick Bergsma Introduction: The project we did was about intertidal organisms going to deep or shallow water. The question is, do animals use the color of light to find different depths? Hypothesis: High-intertidal animals will move towards red light, and low-intertidal animals will move toward blue light. Methods: This project was done by using a big tub, half-way filled with water from the ocean. This project was also done by putting two different colored squares of cellophane over the tub. The colors were red and blue, the colors of deep and shallow water. Then we put three different kinds of interitdal animals in the very middle of the tub. The intertidal animals were a sea star, an urchin, and a few snails. After we put the animals in the middle and saw which way they went. All the animals went to the red. Results: Most of the animals went to the red side of the tub. Only one animal didn’
