The above figure shows the data that one group gathered concerning the depth of the river. The steep slopes on the first and last parts of the graph show where the river has cutting into the land over many years. The lower portion near the middle of the graph shows the main channel of the river.
This image shows the locations and number of clams found in those locations. Note that the point labeled NA had many dead clams but not many live ones. The data shows that clams like to live in shallow water that does not have heavy currents through it.
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