Lena Sawyers, a biologist at the Maryland Department of Natural Resources, holds a flathead catfish captured during an electrofishing demonstration on the Potomac River on Sept. 10. (Photo by ...

Fisheries biologists regularly count trout or Arctic grayling in Montana’s streams by introducing an electrical field to stun and capture the fish. When trout encounter the electrical field their ...

Have you ever wondered how to catch a bunch of fish fast? Well, authorities in Kentucky used an electricity jolt to get an invasive fish species out of the water. The department of Fish and Wildlife ...