A pianist aboard a Royal Caribbean cruise ship survived nearly nine hours in the Pacific Ocean after going overboard. Two fishermen spotted him adrift about 20 miles off the coast of Southern California and pulled him to safety.The 37-year-old pianist, a crew member aboard Royal Caribbean's Ovation of the Seas, was spotted and rescued on Friday morning by fishermen Grant Garrett and Sean Norton, about 20 miles off Catalina Island.The incident has drawn comparisons with Yann Martel's novel 'Life of Pi', which follows a young man stranded in the Pacific Ocean after a shipwreck.While the real-life episode neither involved a lifeboat nor a Bengal tiger, the pianist's survival after spending hours alone in the vast ocean makes for a remarkable story of endurance and an unlikely rescue.ALSO READ | Luxury World Cruise Suspended Mid-Voyage As Soaring Fuel Costs Leave Passengers StrandedThe two fishermen told CNN affiliate KCBS/KCAL that they initially struggled to understand what they were seeing before realising that a man was floating in the open ocean.“I'm like, ‘Yeah, it's a human being. Stop the boat; let's get all of our lines in,'” Garrett recalled.Norton said the sight of a man alone in the open ocean was almost surreal. The two fishermen abandoned their fishing lines and pulled him aboard.“Grant and I each got an arm and lifted him up,” Norton said, adding that the man appeared to be in a state of shock.The survivor's first words after being brought aboard reflected the desperation of his ordeal.“The only thing he said to me was, ‘Thank you. I thought I was gonna die,'” Norton recalled.Newport Beach officials believe the pianist fell overboard at around 2:30 am, nearly nine hours before the fishermen spotted him. The circumstances leading to the incident remain under investigation.He was later handed over to Newport Beach lifeguards and taken to hospital, where he was reported to be in stable condition. He is expected to recover.Warm Pacific Waters May Have Aided SurvivalUnusually warm Pacific waters may have been a key factor in the pianist's survival, with the developing El Niño potentially contributing to broader ocean temperature patterns.Prolonged exposure to cold seawater can cause hypothermia, sharply reducing a person's chances of surviving hours adrift at sea.Norton suggested that relatively high water temperatures had helped the pianist withstand the ordeal.“You have this crazy super El Niño year. This guy was in the water for probably 10 hours, but the water's 76 degrees,” he said. “A different year, no way he makes it.”The episode comes amid concerns over the influence of El Niño on Pacific Ocean temperatures and broader weather patterns.Royal Caribbean RespondsRoyal Caribbean confirmed that the man was a crew member and said it was providing him with assistance. The company declined to disclose further details, citing employee privacy.The US Coast Guard is investigating the circumstances surrounding the man's fall overboard. CNN has sought comments from the Coast Guard and Newport Beach lifeguards.ALSO READ | Norovirus Scare? 1,700 Onboard British Cruise Ship Barred To Leave, Report Stomach Bug Sickness