a marine vessel is disclosed having a control system for automatically controlling thrusters for steering the marine vessel for the purpose of aiding an angler who has hooked a fish . the control system will automatically control the thrusters based on the positions of the propulsion unit control levers if the control levers are split . the control system may also control the thrusters if the propulsion unit control levers have moved past a predetermined threshold . the predetermined threshold can be set by the operator of the marine vessel .