Figure 2. Frequency of all life forms

Upper Midwest Environmental Sciences Center

Home/ Overview/ Science Programs/ Data Library/ Products and Publications/States/ Rivers/Teachers and Students/ Links/ Contact/ Search

Vegetation Update Title Page

Figures

Figure 2. Percent frequency of occurrence (±1 standard error) of submersed aquatic, rooted, floating-leaf, and emergent vegetation by study reach, weighted by the areas of the aquatic strata. Sample sizes can be found in Table 1.

Percent frequency of submersed aquatic vegetation in Pool 8, Upper Mississippi River
*Analysis was not calculated in 2003 because no data were collected for the isolated backwater and Lake Pepin strata.

*Analysis was not calculated in 2003 because no data were collected for the isolated backwater and Lake Pepin strata.

Percent frequency of submersed aquatic vegetation in Pool 13, Upper Mississippi River

Percent frequency of submersed aquatic vegetation in Pool 26, Upper Mississippi River and lower Alton Pool, Illinois River

Percent frequency of submersed aquatic vegetation in La Grange Pool, Illinois River

*Data were provided by the Illinois Natural History Survey based on a grant from the Illinois Department of Natural Resources.

*Data were provided by the Illinois Natural History Survey based on a grant from the National Great Rivers Research and Education Center.

*Data were provided by the Illinois Natural History Survey based on a grant from the Illinois Department of Natural Resources.

Content manager: Dr Yao Yin

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.umesc.usgs.gov/reports_publications/ltrmp/veg/figures/fig2_freqall.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: October 2, 2007