[Andrzej]

Fishing three consecutive days on the Lake with one walleye daily retention limit in a slot of 45-50 cm I've noticed that from three keepers two of those fish were males.

I don't recall reading statistics regarding the gender of those kept fish.
If 66% of fish kept are indeed males then there is much less harm to the breeding Walleye population as presented in most studies.

It would be interesting to have a yearly gender harvest report on those keepers.

I would volunteer my findings.

It could be collected on Alberta Relm as it is already mandatory reporting harvest of large game animals.