Asymetrical developmental Plasticity in an Intertidal Snail
The author of this research was Ron J. Etter. The Nucella Lapilus is a gastropod that resides on both sides of the North Atlanic. In the eastern North Atlantic it extends from Cape St. Vincent in Portugal to Novaya Zemlya. In the Western parts of the North Atlantic it is found from Long Island Sound to Notre Dame. Vertically it ranges from high water tides to low water spring tides. The Lapillus feeds mostly on mussels and barnacles.
There were three main sites used to conduct the experiment. The first site was No Name Point, the second was Bennett Head, and the final was Mackerel Cove. The most areas exposed to waves (No Name, and Bennet) are located in Nahant. Mackerel Cove is sheltered from ocean swells.
The quadrats were "haphazardly" tossed so that the snails would be picked at random. If they just dropped it over an area, it isn't random. They tested the damage after the drilling to ensure that the snails......
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