freshwater
Northern Pike
Esox lucius
Elongated, torpedo-shaped body with a flattened snout resembling a duck's bill. Large mouth with many sharp teeth. Dorsal and anal fins are located far back near the tail. Typically olive green with yellowish-white bean-shaped spots arranged horizontally; white belly.
- Habitat
- Found in freshwater lakes, ponds, and slow-moving rivers…
- Size & weight
- Typically 16–22 inches, but can grow up to 59 inches.…
- Diet
- Carnivorous ambush predator. Feeds primarily on other fi…
Identified More freshwater →
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Physical characteristics
Elongated, torpedo-shaped body with a flattened snout resembling a duck's bill. Large mouth with many sharp teeth. Dorsal and anal fins are located far back near the tail. Typically olive green with yellowish-white bean-shaped spots arranged horizontally; white belly.
Habitat & distribution
Found in freshwater lakes, ponds, and slow-moving rivers across the Northern Hemisphere (North America, Europe, and Northern Asia). Prefers clear, vegetated shallow waters.
Behavior
Solitary and highly territorial. Often remains motionless among aquatic plants waiting for prey to pass before striking with a sudden burst of speed.
Diet
Carnivorous ambush predator. Feeds primarily on other fish, but can consume insects, frogs, small mammals, and even waterfowl.
Reproduction
Spawns in early spring immediately after ice-out. Migrates to flooded marshes or shallow vegetated areas to scatter eggs over submerged plants.
Ecological role
Apex predator in many freshwater ecosystems. Controls populations of smaller fish and maintains the balance of the aquatic food web.
Similar species
Muskellunge (Esox masquinongy), which has dark markings on a light background and pointed tail lobes; Chain Pickerel (Esox niger), which has a chain-like pattern and a dark vertical bar under the eye.
Identification tips
Look for light-colored spots on a dark green background, rounded tail fin lobes, and pores on the underside of the jaw (usually five on each side).
Interesting facts
Northern pike can be cannibalistic, often eating smaller pike. They have sensory pores on their head and jaw that help them detect vibrations in the water to locate prey even in low visibility.