The reason Primrose Lake is stocked is because that lake is the main source of walleye for stocking throughout the rest of the province and to maintain a good population, it is stocked. And because it is not open to angling there is some degree of control over the population. The fact that commercial fishermen are given exclusive access to the lake does not sit well with me however. To the best of my knowledge(which is fairly limited) they are given access for about a 2 week period over Christmas when the airbase is closed down.