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Open-File Report 2011–1027

Prepared in cooperation with the Alabama Clean Water Partnership

Assessment of Aquatic Macroinvertebrate Communities in the Autauga Creek Watershed, Autauga County, Alabama, 2009

By Will S. Mooty and Amy C. Gill

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Only four families within the Ephemeroptera, Plecoptera, and Trichoptera orders were found during a 1999 survey of aquatic macroinvertebrates in Autauga Creek, Autauga County, Alabama, by the Alabama Department of Environmental Management. The low number of taxa of Ephemeroptera, Plecoptera, and Trichoptera families indicated that the aquatic macroinvertebrate community was in poor condition, and the creek was placed on the Alabama Department of Environmental Management 303(d) list.

The U.S. Geological Survey conducted a study in 2009 to provide data for the Alabama Department of Environmental Management and other water management agencies to re-evaluate aquatic macroinvertebrate communities in Autauga Creek to see if they meet Alabama Department of Environmental Management water-quality criteria. Aquatic macroinvertebrate communities were evaluated at three sites in the Autauga Creek watershed. Macroinvertebrates were sampled at two sites on Autauga Creek and one on Bridge Creek, the largest tributary to Autauga Creek. Water-quality field parameters were assessed at 11 sites.

During the 2009 sampling, 12 families within the orders of Ephemeroptera, Plecoptera, Trichoptera were found at the Alabama Department of Environmental Management's assessment site whereas only four were found in 1999. The upstream site on Autauga Creek had consistently higher numbers of taxa than the Bridge Creek site and the lower site on Autauga Creek which is the Alabama Department of Environmental Management's assessment site. Chironomid richness was noticeably higher on the two Autauga Creek sites than the Bridge Creek site.

First posted April 19, 2011

For additional information contact:
USGS Alabama Water Science Center
75 TechnaCenter Drive
Montgomery, AL 36117

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Suggested citation:

Mooty, W.S., and Gill, A.C., 2011, Assessment of aquatic macroinvertebrate communities in the Autauga Creek watershed, Autauga County, Alabama, 2009: U.S. Geological Survey Open-File Report 2011–1027, 16 p.




Purpose and Scope


Riffle Habitat

CPOM (Coarse Particulate Organic Matter) Habitat

Rock and Log Habitats

Root/Bank Habitat

Macrophyte Bed Habitat

Sand/Bottom Habitat

Sample Processing

Water-Quality Field Parameter Measurements

Results of Macroinvertebrate Sample Analyses



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