Northern Pike
Esox lucius · Esocidae
Also known as: Pike, Jack, Northern
A toothy, ambush-hunting apex predator of northern waters.
- Typical size
- 1–4 kg (2–9 lb), 45–75 cm
- Max size
- Big fish exceed 9 kg (20 lb) and a metre in length.
- Water
- Freshwater
- Best season
- Spring (post-spawn) and the fall feed-up; also a prime ice-fishing target.
Identification
Elongated olive-green body with light bean-shaped spots, a duck-bill snout full of sharp teeth, and a single rear-set dorsal fin.
Habitat & Range
Weedy bays, cabbage beds, and cool lakes and slow rivers.
Circumpolar — northern North America, Europe, and Asia.
Diet & Feeding
Fish (including other pike), plus frogs, ducklings, and small mammals; a pure ambush predator.
Spawning & Reproduction
Early spring, shortly after ice-out, in flooded shallow vegetation; no nest or parental care.
Spawning windowSource-verified
- Run begins
- Mar 20
- Peak
- Apr 1
- Ends
- Apr 20
- Redd temperature
- 34–40°F
The earliest spawner in northern lakes. Wisconsin DNR gives late March to early April, as soon as the ice begins to break up, at 34-40F with 36-37F the preferred range - well before walleye, which peak at 42-50F in the same water. Spawning happens in flooded areas with emergent vegetation, where the eggs adhere to plants, and involves one female with one to three attendant males. There is no parental care.
Timing is modelled for a mid-latitude reference population — fish the thermometer, not the calendar. Based on 1 cited source.
Spawning timing by location
Spawning tracks water temperature, so the calendar shifts with latitude and elevation. These break northern pike timing down by state and water body.
- Northern Pike: Identification and How to Catch Them
Light spots on a dark body means pike; dark marks on a light body means muskie. When that fails, the cheek settles it — a pike's cheek is fully scaled, a muskie's is bare on the lower half. And Wisconsin DNR has the numbers on how much easier one is to catch than the other.
- When Do Northern Pike Spawn in Wisconsin?
Wisconsin northern pike spawn from late March to early April at 34–40°F, as soon as the ice starts breaking up. They're the first fish in the state to spawn — weeks ahead of walleye in the same lake.
How to Catch
Always use a wire or heavy fluoro leader — pike bite through light line. Work weed edges and figure-eight boatside for followers.
Best techniques
- Casting spoons & spinnerbaits
- Jerkbaits & swimbaits
- Dead-baiting
- Fly fishing (large streamers)
Lures & baits
- Large spoons
- Spinnerbaits
- Live/dead baitfish
- Big soft swimbaits
Best season: Spring (post-spawn) and the fall feed-up; also a prime ice-fishing target.