The conditions were still too rough, Ms Martin said. ``It is supposed to ease a little this afternoon, but probably not enough for the rescue to happen.''
Seventy-four people, including six New Zealanders, have been marooned on the Akademik Shokalskiy, 3000km southwest of Bluff, since it became wedged in thick ice on Christmas day.
The Russian research vessel set out from Bluff on December 8. Six New Zealanders are on board, including ornithologist Kerry-Jayne Wilson, University of Auckland doctoral student Colin Tan, historians John and Barbara Tucker, and two chefs.
The Akademik Shokalskiy was retracing Sir Douglas Mawson's 1911 Antarctic expedition when it became trapped. The expedition is being led by scientists from the University of New South Wales.