Early-season walleyes follow the shiner spawn.
MN guide Scott Seibert talks shallow, early-season walleyes. Timely info:
Early-season walleye patterns on northern MN fisheries often occur in less than 12′. While classic deep-structure patterns will emerge as the summer progresses, many anglers miss opportunities by looking too deep, too early.
Fisheries such as Lake Winnibigoshish and Leech Lake hold tremendous walleye populations. Both share a common popularity, and have a shallow-weedline bites that often occur in less than 10′.
The shiner spawn – which often coincides with blooming lilacs – is a major trigger that creates shallow-walleye bites. Sand or fine gravel is usually preferred, but there’s also usually weed growth (pencil reeds, cabbage, etc) in these areas on natural lakes.
Many of these fisheries offer extremely good water visibility. Wind can trigger aggressive fish to move up into shallow water and feed aggressively, where a lack of wind can shut down some of these shallow bites.
If the wind lays down, be prepared to slide out over the next break. Cold fronts and major weather systems can also push fish slightly deeper, but as a rule of thumb: you can expect some very aggressive fish up in less than 10′ during stable weather when there’s wind.
Sharp breaks adjacent to shallow flats and weedlines will often concentrate fish when they do slide out into 12-20′. Use your electronics to look for fish and anticipate shadows by where the angle of the sun is. Sharp breaklines that cast deep dark shadows will often hold fish.