How much does latitude change the walleye year?

It rewrites the dates while keeping the plot. The sequence — spawn at ice-out, post-spawn scatter, summer structure, fall binge, winter basin — holds from Tennessee reservoirs to the Northwest Territories, but the calendar underneath stretches wildly: southern-US walleye can spawn in late February; southern Ontario runs mid-April to early May; Canadian Shield lakes push into late May and even June, with ice fishing running into April on the other end. Latitude also shapes the fish themselves — southern walleye grow fast and die young, while a slow-growing Shield fish can pass 25 years, which is why the far north grows so many of the true giants. Never transplant dated advice across latitude; transplant the temperature and light logic instead.

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