515 ILCS 5/10-25

(a) Except as provided in subsections (b) and (c), all properly licensed individuals shall be permitted to take, in any one day, no more than 3 northern pike, 6 sauger or walleye, or 6 in the aggregate of sauger and walleye. (b) In the waters of the Mississippi River between Iowa and Illinois, all properly licensed individuals shall be permitted to take, in any one day, no more than 5 northern pike, 10 sauger or walleye, or 10 in the aggregate of sauger and walleye. (c) In the waters of the Mississippi River between Missouri and Illinois, all properly licensed individuals shall be permitted to take, in any one day, no more than one northern pike, 8 sauger or walleye, or 8 in the aggregate of sauger and walleye.