Coho are already showing up in the shallows off the port of St. Joseph Michigan. Lake Michigan fishing charters will be going out in full force come April 1st. Lake Michigan salmon fishing charters starts with a bang with coho fishing which can be fast and furious. One of the greatest table fair on the lake, Coho salmon battle all the way to the boat. Early spring also bring in Brown Trout that can weigh up to 20 pounds with most in the 4 to 8 pound range.