Deadly invasive parasite found in Tennessee trout

Whirling disease is a condition caused by parasite that affects only trout and salmon species.
Feb. 20, 2018: An invasive parasite that devastated fish populations in some western streams is showing up in Tennessee rivers.

Bigmouth buffalo - Wikipedia

Parasitic Lamprey Eel on Chickamauga Bass! Seriously creepy & gross! (Chestnut, NOT Sea Lamprey!)

MountainTrue Seeks To Map Whirling Disease With Innovative Technology, Outdoors

Aquatic Nuisance Species (ANS) in Georgia Department Of Natural Resources Division

Grass Carp (Ctenopharyngodon idella) - Species Profile

Invasive jumping worms wiggle way across Oregon, Botany

Previously undetected parasite discovered in wild Wisconsin trout - Wausau Pilot & Review

Hammerhead Worms Are Toxic and Invasive, But Are They Dangerous?

There's hope of recovery in Trout Lake as parasite causes major drop in invasive Rusty Crayfish population