Acquisition and Assessment of Nutrient Data: An ecoregion approach with an emphasis on streams


Start Date: 1999

End Date: 2002

Full Citation:

USEPA, 1999 - 2002, $188, 729 + $210,000. "Acquisition and Assessment of Nutrient Data: An ecoregion approach with an emphasis on streams." PI D. Huggins.

Category:

  • Aquatic

Associated with the KU Field Station: No

Research Summary:

Two awards from USEPA allowed us to sample 94 reference streams from May 1999 to June 2002 throughout the four states of USEPA Region 7. This effort is part of the USEPA’s initiative to establish regionally-based nutrient criteria for waterbodies, with the goal of protecting aquatic life from nutrient over-enrichment. Study sites were distributed among the 14 Omernik Level III ecoregions of the region. Scientists and others in the four states nominated 250 streams in the region as being a reference, or least impacted, condition. From these we randomly chose the streams to sample. We sampled the streams for a variety of parameters including dissolved oxygen, conductivity, turbidity, and TN and TP and their constituents. We also measured velocity and collected macroinvertebrate samples. This data became part of the Nutrient Criteria and Biocriteria databases for USEPA Region 7, used by workgroup scientists to set criteria for streams in the region.

Images:

A researcher in Mud Creek, Iowa, Oct. 2001.

Grouse Creek in Kansas in June 2001.