Encyclopedia > Image:Hyalella azteca thumbnail.jpg

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Image:Hyalella azteca thumbnail.jpg

Hyalella azteca thumbnail from http://www.ars.usda.gov/is/graphics/photos/
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Image Number K8451-1
This 1/4-inch-long crustacean, Hyalella azteca, is common in aquatic systems and is used by scientists as an indicator of environmental health and water quality in streams, lakes, and other bodies of water. Photo by Scott Bauer.

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