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Bield:Fish
Single-region spawn timing

Yellow Perch spawn timing in Great Lakes Basin.

Perca flavescensLate March – Late April

Great Lakes shoreline spawning bays peak in April.

Calendar & temperature

JanJan — Outside spawn windowFebFeb — Pre-spawn — water rising toward 42°FMarMar — Peak spawn (45–52°F)AprApr — Peak spawn (45–52°F)MayMay — Post-spawn — water at 58°F+JunJun — Outside spawn windowJulJul — Outside spawn windowAugAug — Outside spawn windowSepSep — Outside spawn windowOctOct — Outside spawn windowNovNov — Outside spawn windowDecDec — Outside spawn window
Typical window: Late March – Late April
32°37°42°47°52°57°62°67°72°77°82°87°Peak 4552°F
Pre-spawn — best fishingPeak spawn — conservationPost-spawn — recovery feeding·Dashed line = peak spawn boundaries

Phase-by-phase

Pre-Spawn

Trophy fishing window
40–42°F

Yellow perch school in massive concentrations in pre-spawn — moving from deep wintering areas to shallower spawning bays as ice melts.

The pre-spawn perch jigging bite (often through the last ice or immediately after ice-out) produces some of the densest perch fishing of the year.

Spawn

Conservation window
42–58°F (peak 45–52°F)

Active spawning behavior. Broadcast spawners — females release long egg ribbons that are draped over vegetation and attended by multiple males. No parental care.

Yellow perch populations are robust in most waters; few states impose spawn closures. Perch are short-lived (5–8 years typical) and reproduce prolifically.

Conservation context

Yellow perch populations are robust in most waters; few states impose spawn closures. Perch are short-lived (5–8 years typical) and reproduce prolifically.

Post-Spawn

Recovery feeding
58–66°F (~7 days)

Post-spawn perch disperse from spawning concentrations and resume normal summer schooling patterns.

Post-spawn perch are scattered and harder to locate than the pre-spawn schools — focus on weedy structure in 8–15 ft.

Summer Pattern

Standard patterns
Above 66°F

Fish disperse to summer habitat and feeding patterns. Spawn cycle complete until following year.

Standard summer fishing tactics apply.