Sediment resuspension and light attenuation in Peoria Lake: can macrophytes improve water quality in this shallow system?

We examined sediment resuspension and light attenuation in relation to the potential for macrophytes to improve water quality conditions in Peoria Lake, Illinois (U.S.A.). The lake exhibited high total suspended solids (TSS) loading and retention of predominantly fine-grained particles in 2000. Larg...

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Bibliographic Details
Published inHydrobiologia Vol. 515; no. 1-3; pp. 193 - 201
Main Authors JAMES, William F, BEST, Elly P, BARKO, John W
Format Journal Article
LanguageEnglish
Published Dordrecht Springer 01.03.2004
Springer Nature B.V
Subjects
Animal and plant ecology
Animal, plant and microbial ecology
Aquatic plants
Biological and medical sciences
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
Lakes
Plantae
Sediments
Shear stress
Synecology
Total suspended solids
Turbidity
Water quality
USA, Illinois, Peoria L
Environmental factor
resuspension
Sediments
Freshwater environment
Aquatic environment
shear stress
Hydrobiology
Light
Water quality
Lakes
macrophytes
Attenuation
Aquatic plant
light attenuation
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Summary:We examined sediment resuspension and light attenuation in relation to the potential for macrophytes to improve water quality conditions in Peoria Lake, Illinois (U.S.A.). The lake exhibited high total suspended solids (TSS) loading and retention of predominantly fine-grained particles in 2000. Large fetches along prevailing wind rose, coupled with shallow morphometry and sediment particles composed of > 90% silt and clay resulted in frequent periods of sediment resuspension. As calculated (wave theory) shear stress increased above the critical shear stress (measured experimentally), turbidity increased substantially at a resuspension monitoring station. Resuspension model explorations suggested that establishment of submersed aquatic macrophytes could substantially reduce sediment resuspension in Peoria Lake. However, K sub(d) is currently very high, while Secchi transparency low, at in-lake stations. Thus, in order to establish a persistent macrophyte population in the lake to control resuspension, the underwater light regime will have to improve quite dramatically.
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ISSN:0018-8158
1573-5117
DOI:10.1023/B:HYDR.0000027328.00153.b2