Rapid Bioassessment Protocols for Use in Streams and Wadeable Rivers: Periphyton, Benthic Macroinve
This revision reflects the advancement in bioassessment methods since 1989 and provides an updated compilation of the most cost-effective and scientifically valid approaches.

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A Checklist of the Aquatic Invertebrates of the Delaware River Basin, 1990-2000
This paper details a compilation of aquatic-invertebrate taxa collected at 1,080 sites as part of 13 surface-water-quality studies completed by selected Federal, state, and local environmental agencie...

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Aquatic Macroinvertebrate Guide
Two page picture guide to common macroinvertebrates.

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Benthic Macroinvertebrates in Freshwater
This document provides information on benthic freshwater macroinvertebrates including taxa, tolerance values, metrics, and protocols.

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Chesapeake Bay Life
An on-line guide to the identification and natural history of common aquatic insects, fish, phytoplankton, zooplankton,benthos and bay grasses found in the Chesapeake Bay.

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Digital Dragonflies
The images presented here were collected by the entomology program based at the Texas Agricultural Experiment Station in Stephenville, part of the Texas A&M University System. Research on dragonflies ...

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Dragonflies and Damselflies
This site provides many photographs of adult dragonflies and damselflies. Some images are copyrighted.

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Dragonflies and Damselflies of the United States
This Web site is a "work in progress," consisting of information on the known distribution of Dragonflies and Damselflies (Odonata) in the United States. Distribution maps and county checklists were c...

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Dragonfly Museum
The images presented here are from the entomology program based at the Texas Agricultural Experiment Station in Stephenville, Texas, part of Texas A&M University. The website however, includes images ...

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EPA Caddisfly Pages
This EPA website provides information and photographs which can be used to identify caddisfly families. These pages were developed by Larry Abele of the New York State Department of Environmental Cons...

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