RedactedNarrative: On July 3, 2014, at approximately 1700 hours the 2002 19''6" Moomba Mobius was stationary in the water as a female occupant onboard began pulling a tuber in.  As the occupant was wrapping the line around her arm, an unidentified vessel left the harbor at a speed which created a large wake.  The operator was concerned the wake would cause water to come over the bow of the vessel, so the operator put the vessel in gear to avoid taking water over the bow.  The line became tight around the occupants arm as she was pulling in the tuber.  The line was constricted around her arm and created a laceration.  Lake Mohave Ranchos Ambulance responded and the patient refused transport to the hospital.  The vessel did not sustain any damage.