Mark Henderson

“Maybe some part of spawning behavior leads to the spreading of the cancer between animals.”

Mark Henderson · said date not stated · reported 2026-07-25

Henderson speculated that spawning behavior might facilitate transmission of the cancer between catfish.

“I wouldn’t eat the ones with tumors.”

Mark Henderson · said date not stated · reported 2026-07-25

Henderson offered advice to anglers regarding catfish with tumors.

“It seems to only happen in larger fish that are of spawning age,”

Mark Henderson · said date not stated · reported 2026-07-25

Henderson noted the cancer appears absent in younger catfish and only affects larger spawning-age fish.