I'm not a fisherman, so an article in the outdoors section about walley usually wouldn't catch my attention. But this article in the Detroit Free Press by Eric Sharp goes beyond the usual "where they're biting and when" and provides some interesting information about walley migration patterns through the Detroit river.
Fisheries scientists have found that the millions of fish that pass through the Detroit River from the end of March to May each year come from a variety of places.
Some are Lake Huron fish that drop downstream to spawn in the river or even as far south as reefs and tributaries on Lake Erie and then make the trip back north. Some are heading for Lake St. Clair and tributaries like the Grand and Belle rivers in Ontario and the Clinton and Huron rivers on the Michigan side.
Some spend the rest of the year in Lake Erie, migrate to the western end to spawn in the river and then start moving east again to spend the fall and early winter off New York and Pennsylvania.
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