If you catch a frankenfish, kill it: Pennsylvania Fish and Boat

Shad, trout, invasives: What three kinds of Delaware River fish reveal about our region

Invasive, toothy northern snakehead caught by angler in marshy, Mid-Hudson waterway

PFBC asks anglers to report and remove 2 non-native fish species caught in Delaware River basin

Bi-State Shad Fishing Contest

1,000+ pounds of frankenfish removed from Susquehanna River

Reeling in Frankenfish – The Academy of Natural Sciences

Snakeheads in the Delaware River - Main Forum - SurfTalk

Fish Commission Wrong Again On 'invasive' Species

Officials urge anyone who spots Northern Snakehead fish to kill it

Invasive fish offers anglers the opportunity for some friendly competition

Bi-State Shad Fishing Contest

Northern snakehead caught in Upper Delaware River

Pennsylvania issues warning to catch and kill invasive Snakehead fish

20 years later, 'Frankenfish' are strong and spreading, but the anglers are getting craftier

Sore Thumb Bait Company