Fish fry: Maryland uses electrofishing to glimpse blue catfish invasion

Fish fry: Maryland uses electrofishing to glimpse blue catfish invasion

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 Christine Condon/Maryland Matters)There is no bright flash or loud bang, no sharp crackling sound. But the rushing waters of the Potomac River have just been electrified. And for a moment, nothing changes. But suddenly, they rise to the surface one by one, …