The 18-year-old was swimming with his brother and friends in deep water near to the shore despite the area being marked by signs warning of shark attacks.
Witnesses filmed the moment Jose was pulled from the ocean and many can be heard screaming as other beachgoers attempt to stem the blood and patch up his injuries before emergency crews arrived.
The injured teenager was rushed to hospital, where he is understood to have suffered two heart attacks and is in a critical condition. He underwent emergency surgery after the bite, believed to be from a tiger shark, according to medics.
He said: ‘The shark bite amputated his femur and his penis. He lost a lot of blood and is in a critical condition.’
Speaking from the hospital, she said: ‘He would go in secret, because he knew that I thought it was dangerous. ‘I wasn’t worried because I thought he was somewhere around the house.
Rodrigo Matias, from Recife’s fire department, said as the group was drifting further out, lifeguards called for them to return to shallower waters.
A spokesman for the Restauracao Hospital said Jose, who turned 18 in March, was rushed into surgery after arriving at the hospital at 5.53pm. Doctors will give a report on his condition later today.
Jose’s is the 65th shark attack registered along the coast of Brazil’s Pernambuco state since 1992, with 80% of the attacks taking place along the 18-mile stretch of beach in Recife.