Northern pike
A large freshwater ambush predator found across the Northern Hemisphere.
The northern pike is a carnivorous fish native to fresh waters of the Northern Hemisphere. It grows to significant sizes and is known for its aggressive hunting style and cannibalistic tendencies.
- Maximum recorded length reaches 150 cm.
- Cannibalism is common when food is scarce.
- Found in freshwater across the Northern Hemisphere.
- Spawns in spring at water temperatures of 9°C.
- Recognized as a major sport fish globally.
What it is
The northern pike is a predatory fish belonging to the genus Esox. It features an olive green body that fades to white on the belly, marked with light bar-like spots. Younger individuals display yellow stripes that later transform into spots. The fish possesses a long head and large sensory pores along its jaw, which help detect movement. Unlike its relative the muskellunge, it has fewer than six pores on each side of the lower jaw. Adults typically measure between forty and fifty-five centimetres, though they can reach one hundred and fifty centimetres. Their weight can exceed twenty-eight kilograms in Eurasian waters.
Where it lives
This species inhabits freshwater bodies across the Northern Hemisphere, including Russia, Europe, and North America. It also appears in the low-salinity surface waters of the Baltic Sea but rarely ventures into brackish environments elsewhere. In North America, populations span from Alaska to the southern United States, including states like New York and Minnesota. European ranges extend through Scandinavia and into Central Europe, excluding Portugal and most of Spain. Introduced populations exist in Morocco, while native ranges cover Canadian provinces from Quebec to Alberta.
How it lives
Pike are ambush predators that lie motionless among vegetation before striking prey with rapid acceleration. They prefer shallow, weedy areas for hunting and shelter. When food is scarce, cannibalism occurs, particularly among young fish unable to hide effectively. This behaviour increases mortality rates during cool summers when growth slows. Larger pikes control larger territories and hunt more efficiently due to better visibility. They feed on small invertebrates as juveniles and progress to eating smaller fish. Attacks on humans are exceptionally rare, though occasional incidents have been recorded.
Breeding and life cycle
Spawning occurs in spring when water temperatures reach approximately nine degrees Celsius. Males arrive at breeding grounds weeks before females. Females release thousands of sticky yellow or orange eggs attached to vegetation. Embryos develop over five to sixteen days depending on temperature. Larvae hatch after swimming freely but remain near the bottom initially. Survival from larva to juvenile stage is low, around five percent. Egg viability drops if water temperatures fall below six degrees Celsius. Parental care is absent, making early life stages vulnerable to predation and environmental changes.
Fish and people
The northern pike is a popular target for sport fishing due to its size and fighting ability. Records include specimens caught in Germany and North America. Some regions consider it valuable commercially, while others view it as a nuisance that threatens native species like trout and bass. Management agencies sometimes poison lakes to eradicate invasive populations. The fish is also consumed as food in various cultures. Local names vary widely, including jack, pickerel, and slough snake. Its aggressive nature makes it a notable subject for anglers seeking challenging catches.
Status and threats
The species is classified as Least Concern by the IUCN Red List. Populations are widespread and adaptable to diverse freshwater habitats. However, introduced populations in non-native regions can disrupt local ecosystems by preying on indigenous fish. Conservation efforts focus on managing invasive stocks in areas where they threaten biodiversity. Natural threats include habitat loss and pollution, but these do not currently endanger the global population. Climate change may affect spawning success by altering water temperatures. Overall, the species remains abundant across its extensive range.
Questions people ask about Northern pike
How big does a northern pike get?
Northern pikes typically average forty to fifty-five centimetres in length. However, they can grow significantly larger, with maximum recorded lengths reaching one hundred and fifty centimetres. Weights can exceed twenty-eight kilograms, particularly in Eurasian waters where conditions support greater growth compared to North American populations.
Where does the northern pike live?
This species inhabits freshwaters throughout the Northern Hemisphere, including Russia, Europe, and North America. It prefers sluggish streams, shallow weedy lakes, and cold clear rocky waters. It also tolerates low-salinity brackish waters in the Baltic Sea but avoids other brackish environments. Introduced populations exist in places like Morocco.
What do northern pikes eat?
Northern pikes are carnivorous ambush predators. Juveniles feed on small invertebrates like Daphnia and Asellus. As they grow, they switch to eating smaller fish. Larger pikes consume substantial amounts of prey, utilizing sudden bursts of speed to capture victims. Cannibalism occurs when food sources are limited, leading to high mortality among young fish.
Is the northern pike dangerous to humans?
Attacks on humans are exceptionally rare and generally not considered dangerous. While pikes are aggressive towards other fish and can be territorial, they do not pose a significant threat to people. Occasional bites have been reported, such as a child's foot in Finland, but these incidents are isolated and not indicative of predatory behaviour towards humans.
Good reading and sources
- Northern pike on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Northern pike", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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