In spring, prespawn walleyes move to specific shallow locations ranging from about one to six feet deep. In reservoirs, walleyes often migrate to the current of feeder rivers or smaller tributaries in creek arms, keying on gravel and rocky sections near incoming rivers and tributary streams, main-lake points, and shorelines. Some walleyes may even spawn on riprap along the faces of dams and causeways. During years of high flow, even flooded shoreline terrestrial vegetation may provide a place for spawning.
Last spring, during an In-Fisherman Professional Walleye Trail (PWT) tournament held on Lake Francis Case reservoir in South Dakota, the tournament coincided with the tail end of the walleye spawn, which gave anglers the opportunity to witness interesting walleye behavior associated with spawning.
Early in the mornings, walleyes could be seen thrashing and spawning in the shallows. The most intriguing behavior, though, was watching anglers hook, fight, and net a fish, only to find one or two additional walleyes flopping in the net. The males were so aggressive that anglers frequently netted multiple fish that followed and chased a hooked walleye right into the net.
Although it’s rare to actually net walleyes following a hooked fish, instinct during the spawning period is to follow and chase other males that are possibly chasing a female, or pursuing food. In fact, the next time you’re fishing during the walleye spawn, consider looking for other walleyes following behind or below those you hook. You may be surprised at how many walleyes are following.
Again, males are the aggressors and remain competitive throughout the spawn. This aggressive behavior often starts a few weeks before the spawn and lasts for several weeks after peak spawning. Some of the best walleye action of the year is targeting aggressive males in key shallow locations.
Females, on the other hand, often stage slightly away from spawning sites, yet seek warmer water during the Prespawn Period while their eggs mature. They generally don’t spend much time at the actual spawning site. In fact, once they move in and drop their eggs, they almost immediately vacate the area.
To catch postspawn females, key on adjacent deeper structure. The action likely won’t be as fast as the shallow bite, but classic deeper spots offer the best opportunity for larger females. Look for females staging on main-lake points or holding along the edges of old river or creek channels. In creek arms, primary points near the main river channel or midlake structure like submerged islands or humps are potential spots.
POSTSPAWN RESERVOIR VARIABLES
During postspawn, many things can dictate walleye location. Fish can be found in deep water within upstream creeks and river sections, suspended in the midsection of the impoundment, and in the shallows of creek arms. Depending on conditions, a percentage of a reservoir walleye population may key on shallow forage, while others key on coldwater baitfish out deep, and yet others search for food both deep and shallow.
Forage types, abundance, and seasonal movements noticeably affect walleye location. Forage abundance also can have a big effect on walleye location. With abundant food in the shallows, walleyes may stay shallow or at least move shallow to feed. Available food allows walleyes to feed relatively quickly and easily without expending much energy.
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