"We have confirmed the crew has immersion suits on board and other resources which will assist them to survive if they have to abandon the ship."
Sparta's sister ship, Chiyo Maru no. 3, is making its way towards the stricken vessel.
However it is about 290 nautical miles and has no ability to cut or break through sea ice. Mr Davis said the centre was continuing to contact vessels in the Southern Ocean to see if they could help with the rescue.
An American search and rescue team based at the Antarctic research centre at McMurdo Station is preparing a Hercules aircraft to fly over Sparta.
The aircraft was being prepared for flight, and is due to take off later this morning. The weather around the Sparta is currently calm and about 3 degrees centigrade.