Why is fall the trophy muskie window?
Three curves cross. First, the fish are at peak annual weight: females are packing eggs for next spring on top of a season of growth, so the same fish weighs more in November than in July. Second, cooling water — down through 10 °C (50 °F) and below — pushes big fish to feed heavily while daylight shrinks the windows, concentrating effort. Third, on many trophy waters the ciscoes and whitefish spawn shallow at 4–7 °C (39–45 °F) in late fall, parading the biggest soft-rayed calories of the year across rock shorelines at night — and the biggest muskie in the lake show up to meet them. Cold hands, big fish; that trade is the whole fall program.
The full story
This answer is one piece of a longer lesson — setups, diagrams and the reasoning behind it.
More questions about Fall (Cold-Water Feed-Up)
Same topic, other species
- Is late fall really a big-crappie window? — Crappie
- Why is fall the jumbo window? — Yellow Perch
- Why is fall the trophy pike season? — Northern Pike
- When does the fall feed-up happen, and how good is it really? — Smallmouth Bass
- What is the fall pattern for brook and lake trout? — Trout (Rainbow · Brook · Lake)
- Why is late fall the trophy walleye window? — Walleye