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Macroinvertebrate Slide Show

Macroinvertebrates are animals without a backbone that can be seen with the naked eye. These bottom-dwelling animals include crustaceans and worms but most are aquatic insects. Beetles, caddisflies, stoneflies, mayflies, hellgrammites, dragonflies, true flies, and some moths are among the groups of insects represented in streams. Macroinvertebrates are an important link in the food web between the producers (leaves, algae) and higher consumers such as fish.



Macroinvertebrate slideshow

Want to try your hand at identifying an aquatic macroinvertebrate? Use the Stroud Water Research Center's macroinvertebrate key.

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