1. based on the data shown in the table calculate the percent change in the population density of the Unionid wide muscles from 1991 to 1997 2. based on the pattern shown in the table calculate the percent change in the population density of zebra mussels from 2009 to 2015

3. scientist want to reduce the population of zebra mussels in the Hudson River propose a solution for reducing the zebra mussel population in the Hudson River

4. describe one potential negative ecological consequence of the proposed solution for reducing the zebra mussel population in the Hudson River