As far as I know, walleye is a very close relative to European zander (also called pikeperch) and probably they have got a very similar behavior. I'll tell about zander and you might find my information useful. If their behaviors differ much then be so kind and tell me - I'll be grateful
What should you think about:
1)Both zander and perch can't feed on bluegills because of small mouth. They need some kind of minnows and you have to provide them;
2)Zander needs much more oxygen in water than perch. If a perch can survive winter in rather bad conditions then zander probably will die.;
3)Zander likes depths and large lakes/ponds. I'd say that your pond should be at least t's not natural for them.
Normally zanders prefer large lakes that have got area at least 100 hectares (250 acres). Some fishkeepers manage to keep them in ~10 acre ponds and probably in even smaller but you shouldn't think about keeping such fish in a 0,5 acre pond.
