Trout fishermen gearing up for tomorrow morning’s opener at the state’s four trout parks need to be aware of some changes to the rules this year. Anglers will now be able to keep only four, instead of five, trout each day. The Conservation Department’s Mike Kruse says authorities have lowered the limit to bring it closer to what is actually stocked. Kruse hopes this will mean more people getting at least some fish to show for their efforts. The minimum length requirement for Brown Trout is at least 15 inches statewide, even longer in some locations. The opening siren for the official beginning of trout season is tomorrow morning at 6:30.