Results*

The data (#of chiton in each pool that left or stayed vs. amount of algae substrate in each pool.) acquired from the field experiments were calculated to find significance suing a chi square statistic. According to the chi square analysis there is a significant correlation (p-value .013, degrees of freedom 1, chi square 6.08088) between chiton staying in pools with high algae diversity and leaving pools with low algae diversity.

Chi Square Chart

Chi square chart
















FIGURE 1.

The chi square chart shows that 31 chiton stayed in tide pools with high algae content. While only 3 chiton stayed in area of low algae content. The chi square chart also shows that 10 Chiton left areas of high algae content while 6 chiton left areas of low algae content. The ratios are 31/41 and 3/9, respectively.

Tide pools Studied

This is a list of each tide pool looked at in Bermuda. Each has a short caption discussing the tide pool. To learn more about the tide pools please look at my field notebook Here.

Tide pool












Tide pool one had the most amount of algae and the most chiton. In addition 6 west Indian snails were found in the tide pool over the course of the three days. The most common algae was: fleshy rhodophyta and crustose coralline

Tide pool












Tide pool 2 had the 2nd most algae and chiton. The algae present in the pool was fleshy rhodophyta. If you notice in this pool the rhodophyta grows on the edge of the tide pool, an area that is difficult for the chiton to reach due to their body structure.

Tidepool












Tide pool three had no algae growth but it did have larvae in it. A young chiton was found in this pool during the first day but it left after the first day.

Tidepool












Tide pool 4 had no algae growth but did have larvae in it.










*Thank you Dr. Livdahl for your statistical help.