You may be right. I was checking from Wikipedia:
http://en.wikipedia.org/wiki/Zander
Called here also pike-perch.
Osmo
Nice fish, but it does not have the white markings on the lower tail as
walleye in North America have. Would this be a Zander?
On saturday night at about 8PM trolling in Oulu lake
we got this walleye weighting about 4.48 lb and the length
was 56 cm ( 22+ inch).
Osmo from Finland