My Scientific Name
By the Numbers
We can be up to 3 feet in length and weigh up to 40 pounds. The longest one on record is 50 inches and the heaviest on record is 102 pounds.
How to Identify Me
As adults, we have a big round head and large mouth, a deeply forked tail, and light spots on a dark green to grey body.
Why I Matter and What's Been Happening
Back in the 1800’s and early 1900s people would fish for us, then sell us to the public for eating.
By the 1950’s, we were almost eliminated because of overfishing, pollution and an invasive* species called the sea lamprey. The United States and Canada have been working together to improve water quality in the Great Lakes and make sure lake trout don’t become overfished again. People also are working to reduce the numbers of sea lamprey in the Great Lakes, which definitely helps us out.
Good News! Our populations in Lake Superior are doing well. And our numbers in Lake Huron and in areas of Lake Michigan also are improving.
* A native species is a species that has always occurred in an area naturally, and was not introduced by humans. An invasive species is not native to an area and can cause harm to native plants and animals.