Macroinvertebrate Keys

Find downloadable, printable, and interactive keys to help identify common aquatic macroinvertebrates in Utah.

Aquatic macroinvertebrates are water bugs without a backbone that can be seen with the naked eye. Different types of macroinvertebrates tolerate different stream conditions and levels of pollution. Their presence or absence of certain macroinvertebrates can be used to indicate clean or polluted water. Check out these keys to help identify common macroinvertebrates in Utah.

Downloadable & Printable Keys

Interactive Keys

Click on the categories below to identify different aquatic macroinvertebrates.