Brown Trout (Salmo trutta)
The brown trout were introduced into the Great
Lakes in the late 1800's and have been successful. Brown trout
found in rivers are usually brown in color. Those found
in lakes are a little more silver colored. Brown trout are a major
predator of the sturgeon larvae. They may also feed
on insects and other invertebrates.
Chinook Salmon (Oncorhynchus tschawytscha)
The chinook salmon, sometimes called a "king" salmon,
were introduced into the Great Lakes in the 1960's. Salmon migrate
up rivers and streams in the fall season to lay their eggs. They
spawn over beds of large gravel. Chinook salmon are among the most
prized sport fish in Michigan.