Get your salmon trolling gear and a good selection of spinners and lures together and hit the waters of the Old Sacramento River where the salmon fishing has improved with catches to 30 pounds hitting the decks from the mouth of the Old Sacramento River into the Walnut Grove area.  Shoreline anglers are also picking up increasing numbers of kings tossing out Mepps,  Flying C and Blue Fox spinners from Discovery Park, downstream to Freeport.  Boaters on the troll are......