by Michigan DNR

Have you ever been fishing Michigan waters and pulled in a fish with a missing fin or one with an external tag on it? Several fish species found around the state are marked in some way, and the details on the fish and the tags are important to several DNR studies and management efforts.

Such species include Chinook and Atlantic salmon, steelhead, walleye, lake sturgeon and brown and lake trout. A fish may have an external mark, such as a fin clip, or the mark could be internal and not visible to the naked eye.

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