Effect of Light on Crayfish


The purpose of this experiment was to determine if Crayfish are attracted to light or repelled by light. I became interested in this idea when I had Crayfish for a class pet in fourth grade, and didnít know weather to leave the lights on around them or to leave them in a dark area. The information gained from this experiment it will help people who raise or sell Crayfish to then know how much light they should have shining on their Crayfish.


Effect of Light on Crayfish Science Fair Project