Northern pike

Esox lucius

Northern Pike

  • It is an ambush predator and well camouflaged in the aquatic vegetation.
  • Aquatic plants (macrophytes) are important to northern pike, providing shelter for juveniles and camouflage.
  • Their snouts are filled with long, sharp teeth.
  • Pikes forage intensively over winter, while developing gonads.
  • They are coolwater (mesothermal) fish and stop feeding when temperatures are too high.
  • “Alarm” pheromones released by prey fish when they are captured are still present in the pike's feces. Prey species that can detect these pheromones avoid the area a pike defecates in.
  • It inhabits lakes, rivers and brackish waters. While it can use brackish water as feeding ground, the northern pike migrates to freshwaters to spawn.
  • Intensive size-selecting fishing can lead to the development of small, inactive and shy fish.
  • Muskellunge (Esox masquinongy) and northern pike have been known to hybridise. Their offspring are commonly called tiger muski. Males are sterile but females can be fertile.