We discussed regulations and the need for conservation, but catch-and-release lakes for crappies seem a long way off. “Length limits are pretty much out of the question here in Minnesota,” Quinn says. “Biologists say they just won’t make a kid measure a bluegill.” Which seems fair enough. But how do we guarantee your kids will be able to take their kids to a lake where they might find a few 2-pound crappies—especially in the North, where it might require 10 years to replace them? Most panfish anglers continue to keep the larger crappies they catch, those specimens weighing over a pound. Some anglers continue to cull out smaller crappies, replacing them with bigger ones while releasing fish they know won’t survive. Not only do anglers largely resist returning big crappies to the water, but many are willing to fight tooth-and-nail against all proposed quality regulations for panfish.

Gord Pyzer, one of two Field Editors for In-Fisherman and former Ontario fishery biologist, says, “The problem isn’t managing fish, it’s managing people. That’s the dilemma. Managing angler expectation is difficult, and many anglers care only about numbers and never will care if they catch a 2-pound crappie.

“Certainly those bigger fish are old fish,” he says. “Pressure has a huge bearing. For instance, if we didn’t have such intense interest in bass up here these days, every smallmouth you’d catch on Rainy Lake would be 4 to 5 pounds. The same thing goes with crappies. A 14-inch crappie up here is 14 to 15 years old, averaging a little better than an inch a year. With climate change, you’re going to see massive changes in this fishery. We know that a 1°C (1.8°F) change in average daily temperature has a phenomenal effect on smallmouths. We’re now seeing an average increase of 3°C in this region. Ice-out occurs two weeks earlier, resulting in a 15-fold increase in smallmouth numbers, because recruitment is so much higher. Crappies will respond to this change in precisely the same way. Not only will recruitment increase, but crappies will grow faster. I’m certain this is happening, from what I’m seeing.

“It’s a positive thing up here for crappies, but not for trout and salmon. In British Columbia’s Fraser River, which receives the world’s largest run of pink salmon, temperatures have been lethal for adults when they return to the river during their traditional spawning windows, for the past 4 or 5 years in a row. And that’s happening with just a 1°C rise in average daily temperatures.

“Crappies will benefit from global warming, up here on the northern end of their range,” says Pyzer. “We’re seeing huge schools of young-of-the year crappies where I’ve never seen them exist before. They’re moving and colonizing—actually spreading their range and taking over more parts of these larger, deeper lakes, in areas that were too cold or too deep in the past. Back bays in those areas used to be too cool, and that factor is changing.” Which complicates the identification of a Slab Crappie Zone even further.

The Quest for True Slabs

“The key elements surrounding the quest for big fish don’t change,” Stange says. “You pick the seasons of greatest vulnerability, find the right seasonal habitat, and try to hit a window of optimal weather conditions. But step one is targeting water where it’s not only possible but likely to run across fish in the 2-pound range. Spring is the primary time to find crappies shallow, but you have to hit one of two narrow windows in spring on many lakes. Last-ice is prime time Up North, and the early Prespawn Period is critical everywhere. Both periods are short, volatile, and given to extreme weather fluctuations that make timing the bite difficult.”

“A number of lakes in South Dakota have crappies over 2 pounds,” says In-Fisherman Editor Jeff Simpson. “But to go there and expect to catch them that big? Unless it’s timed perfectly, you probably won’t find them. They seem vulnerable only on a seasonal basis, only in those key windows, and those might last several days or several weeks, depending on weather.”