1. Sea Lamprey
Sandra and Gabby

2. small but Deadly Soft, cartilaginous skeleton, and no bones
Mouth is armed with 11 to 21 rows of hooked teeth; the innermost being the largest
Small ones are white below and blackish blue above, large are olive brown above or shades of yellow-brown, blue green and red
Length of transformation from larvae stage is about 4 to 8 inches; adults being a total of 18 to 24 inches

3. the Invasion begins
Native to the Atlantic ocean and were accidentally unleashed into the Great Lakes in the 1800s through manmade locks and shipping canals
Before we built these canals, the Niagara Falls were a natural barrier that kept them out

4. a Shocking discovery
First discovered in Lake Ontario in 1835, Lake Erie in 1921, Lake Huron in 1932, Lake Michigan in 1936, and Lake Superior in 1946.
Matured ones had been found in all 5 Great lakes by 1947, and they have now entered into small streams surrounding the area

5. a Parasitic problem
Will latch themselves onto large fish with an oral, suction-cup like disk on their face, using their rough tongue to rasp through the skin and feed on the body fluids, often killing the fish
The Great lakes fishery suffered a devastating blow; because of aggressive and predacious nature, they are cause of massive decreases in common catch like lake trout, salmon, rainbow trout, whitefish, chubs, burbot, walleye and catfish

6. A new Hope Blocking spawning migration using new technologies
Using electrical barriers that use safe levels of pulsed- DC current
Investigation on how to adjust height of barriers so that they can be lowered for added efficiency
Utilizing lampricide (TFM) to kill the larvae in streams without impacting other fish