Missouri Department of Conservation
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Northern Pike

Esox lucius
Family: 
Esocidae (pikes) in the order Esociformes (mudminnows and pikes)
Description: 

Like other pikes, this fish has a duckbill-shaped snout, large mouth with many sharp teeth and a single dorsal fin, which is similar in shape and size to the anal fin, and both are positioned far back, near the forked tail fin. Northern pike is distinguished in having the cheek fully scaled but the gill covered scaled only on the upper half, and in having a row of 5 sensory pores along each side of the lower jaw. The overall color pattern consists of light spots against a darker background. The upper parts are green or blue-gray, with numerous roundish yellow spots on the sides. There is no dusky bar beneath the eye. The fins, except the pectorals, are often marked by roundish black spots.

Size: 
Length: to more than 4 feet; weight: to more than 40 pounds.
Habitat and conservation: 
Occurs in a variety of habitats, including lakes, reservoirs and large streams as well as borrow pits and drainage ditches. It avoids strong currents and prefers waters with dense vegetation. Missouri is on the southern edge of the range of this species. In the past, the MDC stocked it in lakes and reservoirs in many locations, but natural reproduction has generally not maintained those populations.
Foods: 
Like other pikes, this species is carnivorous and hunts by ambush, darting out to seize prey from a place of concealment. It mainly eats other fishes and where abundant, it plays an important role in regulating the numbers and maintaining the population balance of prey species. One reason this fish was once stocked in our reservoirs was to introduce a predator capable of limiting fish such as gizzard shat, which were not being checked by largemouth bass and other predators.
Distribution in Missouri: 
Native to northern and central Missouri, and the lower Osage River. Currently, our largest natural populations are in borrow pits and drainage ditches on the Mississippi River floodplain, in Clark and Marion counties. Reports from the Missouri and upper Mississippi rivers have been increasing.
Life cycle: 
Spawning is in early spring, after the pike have moved into marshes or other shallow, marginal waters. The eggs are broadcast over submerged vegetation and receive no more attention. Growth is rapid; young pike can grow to 17 inches by the time they are 8 months old and can reach the legal catchable length of 30 inches by age 2½. Females grow more quickly and live longer than males. In the wild, they rarely live more than 13 years, but in zoos they have lived for as many as 75 years.
Human connections: 
Because of its rarity in our state, northern pike is of little importance as a game fish. It is more readily caught and usually smaller than the muskellunge, but the sporting qualities of the two fish are similar.
Ecosystem connections: 
Northern pike is like a larger version of grass and chain pickerels. It was stocked in Missouri reservoirs in part to effectively control the large stocks of carp and gizzard shad present in those waters.

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