Benthic invertebrate assemblages and their relation to physical and chemical characteristics of streams in the Eastern Iowa basins, 1996-98
By: by Allison R. Brigham and Eric M. Sadorf.
Contributors: Sadorf, Eric M.; Geological Survey (U.S.)
Series: Water-resources investigations report -- 00-4256.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Information Services [distributor]
Place of publication: Iowa City, Iowa; Denver, CO
Number of pages: 44
Subjects: Water quality biological assessment -- Iowa.; Freshwater invertebrates -- Iowa.; Water -- Pollution -- Iowa.
Notes: Shipping list no.: 2001-0296-P.

Includes bibliographical references (p. 35-38).