Pool 8 Vallisneria Study 2003-2009


The purpose is to define nutrient-related factors regulating its growth and development. Vallisneria americana (wildcelery) is an extremely important submersed aquatic macrophyte in the river that provides habitat for fish and invertebrates and food for waterfowl. We experienced a major collapse of this vegetation during and following the drought of 1987-89. This monitoring was initiated to determine how tissue nutrients vary from year to year and its relationship to river flow and sediment nutrients, particularly nitrogen.


Tissue analysis data from the UW Soil and Plant Analysis lab that match these samples.

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Targeted Monitoring
Reports and Documents
John Sullivan & Heidi Langrehr Mississippi/Lower St Croix Team Wisconsin Department of Natural Resources La Crosse, WI August 2002