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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K11196-1

Because of their rich diversity and short life cycles, the macroinvertebrates collected in this Mississippi creek by biologists Charles Bryant (left) and Sam Testa are very useful in assessing environmental effects of stream restoration techniques.

Photo by Peggy Greb.



640 pixels wide: (k11196-1.jpg)




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Last Modified: 5/23/2006
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