Similar to summer fishing, early-season ice-anglers are likely to find most species in transition between shallower shoreline structure and deeper water. Photo by Ron Sinfelt.

How many times have you heard it? "You better get out there as soon as the ice is safe to walk on if you want to get into the best hardwater angling of the season."

So, you load up the portable shelter, head out to the spot where the crappies or walleyes or sunfish cooperated last year and you can't generate a single bite. It happens more than you might think. That's because there is more to first-ice fishing than drilling a hole and dropping a lure. You have to be in the right place at the right time with the right presentation.

Dave Genz revolutionized ice-angling and is responsible for how the mobile ice-angler fishes today. He designed and manufactured one of the early ice shelters -- the "Fish Trap" -- that are widely sold today. He pioneered custom ice rods that used reels and relied upon sensitivity. His Blue Box was the original battery holder and sonar mount for a flasher sonar that allowed ice-anglers to see what was below the hole. In short, Genz's inventions, ideas and concepts have improved many hardwater anglers' success ratios. Thus, his title: "The Godfather of Modern Ice-Angling."

According to Genz, those who don't understand the first-ice phenomenon will not be able to take advantage of the outstanding fishing available. The angler who targets a spot that was successful the previous season but can't buy a bite during first ice now is likely facing a fundamental dilemma, Genz said.

"The fish aren't there yet," he explained. "This was probably a deep cut or a spot on the basin in the middle of the lake, and it might be a few weeks before the fish arrive there. This angler should be fishing shoreline-related structure, where the fish are when the ice forms."

Genz said winter fishing can be compared with summer fishing in that all species are in transition during the early and late parts of the season. He uses the walleye species as an example. "Walleyes leave the shallower water and move to the basins of the lake in midwinter," he said. "Same thing they do in the summer. In the summer, they come in to spawn and they're on the rockpiles. You catch them like crazy, and then all of a sudden, in the middle of July and August, they're gone. It's amazing how similar winter is to summer. When they move deeper in mid-winter, you have to start going to new spots, going to the humps in the middle of the lake. On first ice, we're fishing the ones in the bays where it's shallow. In midwinter, they move out to the middle of the lake, and that's where you go to find them."

Genz also advised that first-ice fish of most species are generally more aggressive and feed more than normal. In the midwinter months, food can be difficult to find, and the fat they produce early acts as an energy reserve later. Fish rely on this spare energy source to make eggs for spawning in the spring. They feed a lot more in the fall and at first ice than in the midwinter.

Genz said temperature has something to do with fish location as well. In the early -- or first-ice -- part of the season, the shallower temperatures are still in the preferred range, about 39 to 40 degrees. As the season progresses, those shallower regions get colder, while the deeper water in the middle of the basin maintains that preferred temperature. As a result, the fish move toward the deeper water to stay comfortable.

So what is the profile for first ice? According to Genz, it's after anglers can safely begin walking out on the ice but before the fish make their transition to the deeper basin areas. He said few anglers take advantage of this period.

"You have to go at first ice, before you can start driving on the ice," Genz said. "There are many people who won't go ice-fishing until they see trucks out on the ice. First ice is when you're walking with an ice chisel and hitting the ice in front of you to make sure it is safe. You're wearing a life jacket (and) you do have to be very careful. But if you want to take advantage of first ice, you can't wait until the ice is a foot thick."