Middle School Students Collaborate with DNR during Science Investigation
Williamston Middle School students participated in a science lesson with officials from the Michigan Department of Natural Resources (DNR). The investigation focused on the impact of invasive species in the Great Lakes, specifically sea lampreys.
The sea lamprey is an invasive species that is present in all five of the Great Lakes. “Sea lampreys were first observed in Lake Ontario in the 1830s. They did not invade Lake Erie prior to the improvements of the Welland Canal in 1919; sea lampreys were first observed in Lake Erie in 1921. After spreading into Lake Erie, sea lampreys moved rapidly to the other Great Lakes, appearing in Lake St. Clair in 1934, Lake Michigan in 1936, Lake Huron in 1937, and Lake Superior in 1938. By the late 1940s, sea lamprey populations had exploded in all of the upper Great Lakes causing severe damage to lake trout and other critical fish species. Sea lampreys have a suction cup mouth ringed with sharp teeth. They attach to fish and feed on their blood, usually killing the fish.” (from DNR literature).
Students had the opportunity to view a presentation and also handle baby and adult lampreys.