Spatial Patterns of Macroinvertebrates on the Upper Mississippi River System.

Abstract

The most widespread annual collections of benthic (bottom dwelling) macroinvertebrates in the Upper Mississippi River System (UMRS) are now being made as part of the Long Term Resource Monitoring Program (LTRMP). Long-term monitoring is necessary to better understand the conditions needed to support viable macroinvertebrate populations at levels adequate to sustain native fish and migrating waterfowl. In 1992, the long-term monitoring of select taxa began in Pools 4, 8, 13, 26 and the Open River Reach of the Upper Mississippi River and in La Grange Pool of the Illinois River. Mayflies (Ephemeroptera), fingernail clams (Sphaeriidae), and Asiatic clams (Corbicula sp.) were first selected for sampling, followed by midges (Chironomidae) in 1993, and zebra mussels (Dreissenapolymorpha) in 1995.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1998
Accession Number
ADA338013

Entities

People

  • Jennifer S. Sauer
  • Kenneth S. Lubinski

Tags

DTIC Thesaurus Topics

  • Birds
  • Electronic Mail
  • Environmental Management
  • Fingernails
  • Geographic Information Systems
  • Geological Surveys
  • Information Systems
  • Materials
  • Mississippi
  • Mississippi River
  • Monitoring
  • Organic Materials
  • Rivers
  • Sampling
  • Spatial Distribution
  • Water Quality

Fields of Study

  • Environmental science

Readers

  • Riverine Ecology