Harper, Faculty Advisor, Given

Kirchman, Jeremy J.

Digital Commons @ Illinois Wesleyan University

Illinois Wesleyan UniversityDigital Commons @ IWUJohn Wesley Powell Student ResearchConference 1993, 4th Annual JWP ConferenceMay 8th, 9:30 AM - 4:30 PMThe Effect of Water Quality on MacrophyteBiomass in Small, Northern Illinois ImpoundmentsJeremy J. KirchmanIllinois Wesleyan UniversityGiven Harper, Faculty AdvisorIllinois Wesleyan UniversityFollow this and additional works at: http://digitalcommons.iwu.edu/jwprcThis Event is brought to you for free and open access by The Ames Library, the Andrew W. Mellon Center for Curricular and FacultyDevelopment, the Office of the Provost and the Office of the President. It has been accepted for inclusion in Digital Commons @ IWU bythe faculty at Illinois Wesleyan University. For more information, please contact digitalcommons@iwu.edu.©Copyright is owned by the author of this document.Jeremy J. Kirchman and Given Harper, Faculty Advisor, "The Effect of Water Quality on Macrophyte Biomass in Small,Northern Illinois Impoundments" (May 8, 1993). John Wesley Powell Student Research Conference. Paper 28.http://digitalcommons.iwu.edu/jwprc/1993/posters/28THE EFFECT OF WATER QUALITY ON MACROPHYTE BIOMASS IN SMALL, NORTHERN ILLINOIS IMPOUNDMENTS Jeremy J. Kirchman, Dept of Biology, IWU, Given Harper* To further understand the relationship between rooted macrophyte plants and nutrient regulation in lentic ecosystems, four man-made lakes at Max McGraw Wildlife Foundation, Kane County, Illinois were sampled from May to August, 1992 for submersed macrophytes. The total estimated plant biomass of each lake was then compared with levels of nutrients (nitrate, alkalinity, ammonia, and orthophosphate), turbidity and pH measured in the water column. Linear regression analysis showed no significant relationship between macrophyte biomass and levels of nutrients or physical parameters. The most plausible explanation for the lack of relationship observed is that macrophytes obtain their nutrients from lake sediments and not from the water column. A possible relationship was observed between macrophyte biomass and turbidity, which may have been due to biomass cycling from macrophytes to suspended (light scattering) algae. 

The Effect of Water Quality on Macrophyte Biomass in Small, Northern Illinois Impoundments

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The Effect of Water Quality on Macrophyte Biomass in Small, Northern Illinois Impoundments

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