Sometimes, to understand what’s happening in a stream, scientists have to go fishing.
“I’m ready whenever,” says David Leer of CreekWalker Aquatics, who’s leading a field crew of scientists and technicians. “Fire in the hole.”
The “fire” he’s referring to is electricity from an electrofishing rig he’s carrying on his back. Electrical current enters the water by way of a metal probe he waves in the water in front of him…