A total of 20 bodies have now been recovered since the 1,753-tonne Oryong 501 trawler went down Monday in rough, icy seas with 60 people on board.
Only seven people were rescued.
The eight bodies recovered today included two Indonesians, two South Koreans, two Filipinos and two unidentified crew members, said a spokesman for the vessel's operator, Sajo Industries.
A US coastguard plane has been helping South Korean and Russian ships scouring the area, backed by a Russian helicopter.
Those on board included 11 South Koreans, 35 Indonesians, 13 Philippine crew members, as well as a Russian fisheries inspector who was among the rescued.