Doc, Survivability of your walleye may depend on several factors, but stratification and DO issues can be mitigated with proper aeration.

Hopefully you can open the following link. Good discussion on walleye stocking strategies.

http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=5;t=000257#000000

If link doesn't work, search Walleye in What fish to choose.