- One of our basin’s most eye-catching fish, the colorful Rainbow Darter is found in fast-moving, rocky-bottomed streams, and small rivers.
- Rainbow Darters are an indicator species. Because they are intolerant of pollution, their presence usually indicates a healthy waterway.
- When rainbow darters are attacked, they release a chemical that warns other darters of the danger.
- The greatest threats to rainbow darter populations are new development from urban sprawl and the resulting pollution from stormwater runoff.