In Zona Sur and the northern part of Zona Austral the climate is Temperate oceanic. Most of the coal resources of Chile lie in Zona Austral at southernmost Chile. During the period of circulation of the austral, Argentina suffered from hyperinflation. McMurdo Sound during austral winter presents a virtually impenetrable expanse of surface ice. In 1985, the Argentine austral replaced the discredited peso. North to south Japan and south to New Caledonia, Fiji and the Austral Islands. Further south lies the Austral Volcanic Zone. Raivavae is one of the Austral Islands in French Polynesia. Adult dodos which had just bred moulted after Austral summer, around March. Females and their pups hauled-out during austral winter months of June to September. More variations of the austral accent are found in southern regions. Four vessels are operated by two Australian companies (Austral Fisheries and Australian Longline). . Leopard seals are very vocal underwater during the austral summer. Both Austral and Austral South American species lack and indusium. The capital of the Austral Islands administrative subdivision is Tupua'i.