A study found flatheads occupy the highest level in the food web, forcing native species like smallmouth bass to change their diets. The invasive catfish are growing much faster and larger in the ...

Flatheads grow fast in this river system, attain large body sizes and can eat a variety of prey. Because adult flatheads have few natural predators, they can exert strong control over the ecosystem.

When it comes to fishing, few anglers exhibit the drive, determination and passion that Laura Yeates shows as she chases monster flathead catfish from March through early fall on the Delaware River.