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We explored how mesh size can affect the description of the macroinvertebrate community in large rivers using data from artificial substrate samplers in the main channel of the Savannah River near Augusta, Georgia, and from fine sediments in the main channel of the Upper Mississippi River near Cape Girardeau, Missouri. Samples from the Savannah River were collected on five occasions between 2000–2003...
The concept of ecological integrity has become a worldwide phenomenon and is firmly entrenched into the regulatory structure of environmental law in the United States of America (USA). The attainment of ecological integrity requires the attainment of its three elements: physical, chemical, and biological integrity. In the USA, measures of chemical integrity were implemented first into monitoring programs...
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