Jay-nel Rosals, a 30-year-old deckhand and Philippine national, was floating in a raft in waters north of the Amami Oshima island in the East China Sea where rescuers have been looking for the crew of the Gulf Livestock 1 since it sent a distress signal early on Wednesday.
The ship, which had a cargo of almost 6,000 cattle, sent a distress call from the west of Amami Oshima island in south-western Japan on Wednesday, as Typhoon Maysak barrelled towards the Korean peninsula.
Rescue efforts continued Thursday as Typhoon Maysak lashed parts of South Korea, north of where Edvardo was found, with heavy rain and gusts of up to 90 miles per hour, leaving hundreds of thousands of homes without power. Likely-Typhoon Haishen, is poised to move through the region early next week.
Mr Edvardo was rescued late on Wednesday and said the ship's engine had failed during the typhoon, before it capsized after being hit by a freak wave.
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On Wednesday night, a naval P-3C surveillance aircraft spotted a Filipino crew member wearing a life vest bobbing up and down in the water, and he was rescued from the sea by a coast guard patrol boat.
The 11,947-ton ship, its 43 crew and 5,800 cows left New Zealand in mid-August heading to Tangshan on China's eastern coast.
He was conscious and was able to walk when the coastguard rescued him.
There were no details on when and where the ship sank, but the man said he had not seen other crew members while waiting to be rescued.
It is understood the consignment was being shipped by an exporter that operates out of both Australia and New Zealand.
Campaign manager Marianne Macdonald said: "These cows should never have been at sea".
There has been little sign so far of other survivors, with the coast guard spotting an empty rubber dinghy and a life jacket during their search.More news: Serbia, Kosovo announce closer economic ties at White House event
There are three coast guard vessels, five planes and specially trained divers involved in the search-and-rescue mission.
A second person has been found alive drifting in waters off south-western Japan where a live export ship is feared to have sunk in the East China Sea.
Typhoon Maysak was blowing by southern Japan at the time of the sinking.
Based on that position, it was sailing in high winds of 58 knots (66 miles or 107 kilometres per hour), MarineTraffic.com said.
"Our hearts go out to those onboard and their families at this time. We pray that there are other survivors", it said.
The Gulf Livestock 1 is a Panamanian-flagged vessel which was built in 2002 and is reportedly owned by a Jordanian company.
But the patrollers say they don't know whether the search can continue on Saturday and beyond, as another powerful typhoon is approaching.More news: Most of Ontario's 148 new COVID-19 cases in Peel Region