Respectively, Research Hydrologist, U.S. Geological Survey, 8505 Research Way, Middleton, Wisconsin 53562; Ecologist and Cartographer, U.S. Geological Survey, 221 North Broadway, Suite 101, Urbana, Illinois 61801; and Physical Scientist, U.S. Geological Survey, 8505 Research Way, Middleton, Wisconsin 53562 (E-Mail/Fitzpatrick: email@example.com).
URBANIZATION INFLUENCES ON AQUATIC COMMUNITIES IN NORTHEASTERN ILLINOIS STREAMS1
Article first published online: 8 JUN 2007
JAWRA Journal of the American Water Resources Association
Volume 40, Issue 2, pages 461–475, April 2004
How to Cite
Fitzpatrick, F. A., Harris, M. A., Arnold, T. L. and Richards, K. D. (2004), URBANIZATION INFLUENCES ON AQUATIC COMMUNITIES IN NORTHEASTERN ILLINOIS STREAMS. JAWRA Journal of the American Water Resources Association, 40: 461–475. doi: 10.1111/j.1752-1688.2004.tb01043.x
Paper No. 02059 of the Journal of the American Water Resources Association (JAWRA) (Copyright © 2004). Discussions are open until October 1, 2004.
- Issue published online: 8 JUN 2007
- Article first published online: 8 JUN 2007
- aquatic ecology;
- water quality;
ABSTRACT: Biotic indices and sediment trace element concentrations for 43 streams in northeastern Illinois (Chicago area) from the 1980s and 1990s were examined along an agricultural to urban land cover gradient to explore the relations among biotic integrity, sediment chemistry, and urbanization. The Illinois fish Alternative Index of Biotic Integrity (AIBI) ranged from poor to excellent in agricultural/rural streams, but streams with more than 10 percent watershed urban land (about 500 people/mi2) had fair or poor index scores. A macroinvertebrate index (MBI) showed similar trends. A qualitative habitat index (PIBI) did not correlate to either urban indicator. The AIBI and MBI correlated with urban associated sediment trace element concentrations. Elevated copper concentrations in sediment occurred in streams with greater than 40 percent watershed urban land. The number of intolerant fish species and modified index of biotic integrity scores increased in some rural, urbanizing, and urban streams from the 1980s to 1990s, with the largest increases occurring in rural streams with loamy/sandy surficial deposits. However, smaller increases also occurred in urban streams with clayey surficial deposits and over 50 percent watershed urban land. These data illustrate the potentially complex spatial and temporal relations among biotic integrity, sediment chemistry, watershed urban land, population density, and regional and local geologic setting.