VICTORIA -- Federal officials say emergency response crews will work through the holidays to try to contain an oil spill from a historic shipwreck off the west coast of Vancouver Island. The coast guard says it is still working to confirm just how much fuel oil was on board the Holland America freighter when it ran aground in Nootka Sound and sank in January 1968. The 150-metre MV Schiedyk was carrying thousands of tonnes of wood pulp and barley bound for Portland, Ore. when it went down near Bligh Island. All 34 sailors aboard the ship survived the wreck. Mariners and aviators in the remote area say small slicks of bubbling oil have long been apparent on the water’s surface, but last month those trickles turned into a plume of oil stretching upwards of two kilometres.