Pike is very common fish in Finland watercourses. It lives in coast waters, rivers, lakes and ponds. In Finland pike don't live only in top-lapland, but everywhere elsewhere. Pike is a predator, which uses animal plankton as its first nourishment, but very quickly when growing it begin to eat fishes.

Pike eats roaches and perches in Finland's lakes. Pike eats also salmons as a cannibal it eats also smaller pikes. Pike eats also crabs (crayfish), frogs and young water birds. In the sea large pikes are hunting also Baltic herring. In the lakes pikes are hunting shoals as whitefishes and smelts. Pikes also usually eat whatever it can catch.

In Baltic Sea pikes live areas where water salt content doesn't exceed 18 permillage. In the sea pikes spawning succeeds areas, where water salt content is below 7 permillage.