From the regs...
"Legend: "Dot" = Default regulations for Fish Management Zone ES1. As examples ‘3 over 63’ indicates a possession and a size limit and ‘3’ or ‘10’ indicates a possession limit for that species of any size."
So Pine Coulee has a Dot under the column for "Season" meaning it is the default for ES1 - open all year.
It also has a 3 under both the walleye and pike columns but not size restrictions under either. See the underlined portion above. This means it is subject to special regulations - a three limit for both species. It does not mean PC is subject to the default regulations which are 3 walleye over 50 cm.