Upper Midwest Environmental Sciences Center

UMESC - LTRMP Reports - Macroinvertebrate - Figure 3. Estimated density of fingernail clams (number per square meter) by study area, weighted by area of strata
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Macroinvertebrate Update Title Page
 Figures

Figure 3.

Estimated density of fingernail clams (number per square meter; ±1 standard error) by study area, weighted by area of strata. The wash frame sieve size was changed from a U.S. Standard Sieve no. 30 (0.595 µm), used in 1992, to a U.S. Standard Sieve no. 16 (1.18 mm) in 1993. Horizontal line indicates grand mean.


Pool 4

**Sampling not conducted in 2003 because of budget constraints.

Pool 8

Pool 13

Pool 26

*Sampling not completed because of high water.

**Sampling not conducted in 2003 because of budget constraints.


*Sampling not completed because of high water.

**Sampling discontinued in 2001.

La Grange Pool

**Sampling not conducted in 2003 because of budget constraints.

Content manager: Jennie Sauer


Page Last Modified: April 17, 2018