A state police spokesperson said the 51-year-old man fell off the front of the pontoon when it hit a large wake in Lower Township at around 7:35 p.m. on Saturday, Aug. 3.
The propeller gashed open the man's stomach and one of his arms. He was rushed to a nearby hospital.
The man was expected to survive his injuries, police said.
Click here to follow Daily Voice Mount Laurel and receive free news updates.