[3] Arrow darters are often found in shallow pools of water near large, flat stones.

In the book, Handbook of Darters by Lawrence Page, pregnant females have been found by a scientist, Bailey, in April.

[4][page needed] The arrow darter is found in the rivers and streams spanning Kentucky and Tennessee.

The pollution caused by the runoff of explosions is detrimental to the health of the streams nearby, and all those who live in them.

The arrow darter is not on the endangered species list yet, but it has been wiped out from more than half of its regions.

Polluted streams from coal runoff has been linked to increases of cancer and birth defects in humans.