Upper Midwest Environmental Sciences Center
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Figure 19. | Mean fingernail clam (Sphaeriidae) abundance in Pool 8, Upper Mississippi River System, from 1993 to 2004. |
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Page Last Modified: April 17, 2018
Figure 19. | Mean fingernail clam (Sphaeriidae) abundance in Pool 8, Upper Mississippi River System, from 1993 to 2004. |
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