Lake Superior lake trout, splake and brook trout comparison
Fishing Wisconsin
Lake Trout (top)
Splake (middle)
"Coaster" Brook Trout (bottom)

Lake Trout (left) will have a deeply forked tail.
Splake (middle) has a moderately forked tail.
"Coaster" Brook Trout (right) has only a slightly forked tail.

Splake has a moderately forked tail.

