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ENVIRONMENTAL AUDITING Assessing Biotic Integrity of Streams: Effects of Scale
 

Summary: ENVIRONMENTAL AUDITING
Assessing Biotic Integrity of Streams: Effects of Scale
in Measuring the Influence of Land Use/Cover and
Habitat Structure on Fish and Macroinvertebrates
MARY LAMMERT*
The Nature Conservancy
8 S. Michigan Avenue, Suite 2301
Chicago, Illinois 60603, USA
J. DAVID ALLAN
School of Natural Resources and Environment
The University of Michigan
Ann Arbor, Michigan 48109-1115, USA
ABSTRACT / Fish and macroinvertebrate assemblage com-
position, instream habitat features and surrounding land use
were assessed in an agriculturally developed watershed to
relate overall biotic condition to patterns of land use and
channel structure. Six 100-m reaches were sampled on each
of three first-order warm-water tributaries of the River Raisin
in southeastern Michigan. Comparisons among sites and
tributaries showed considerable variability in fish assem-

  

Source: Allan, David - School of Natural Resources and Environment, University of Michigan

 

Collections: Environmental Sciences and Ecology