Sea lamprey
Petromyzon marinus
Invasive summary
A parasitic fish that invaded the Great Lakes and attaches to large fish.
Known impacts
Has caused major declines in lake trout and other fishery species.
Management notes
Control relies on barriers, trapping, lampricides, and basin-wide monitoring.
Native range
Atlantic Ocean
Regions where reported
- CA - 40 public points
- US - 40 public points