flora and fauna with a high proportion of endemic algal and invertebrate species. The deep-water fauna is closely allied biogeographically to the fauna of the New Zealand subantarctic islands and has probably migrated to the island along the Macquarie Ridge. This strongly defined bioregion is located south of Tasmania on the southeast margin of Australia. It has 486 demersal fish species, with 52 endemic species. This bioregion is characterised by a large number of seamounts that contain endemic fishes. The Cascade Seamount is included because its is more closely Tasmania associated with fauna found on other 300 190 km2 5584 m 100 Province seamounts in the Southern Ocean. Because of its shallow depth, the South Tasman Rise contains species of fish otherwise found on the upper slope of the Tasmanian margin. Studies have shown that the benthic fauna at the foot of the slope and the abyssal plain in this bioregion are similar and distinct from benthic fauna on the top of the Cascade Plateau (DEH 2005). Tasmanian This bioregion is located on the shelf Shelf regions of eastern, southern and western 59 300 km2 834 m 63.89 Province Tasmania. Bass Strait This bioregion is located on the Shelf region of northern Tasmania and the 96 670 km2 90 m 87.8 Province Bass Strait. This transitional bioregion is located west West of Tasmania on the southeast margin of the Australian mainland, on deeper 289 850 km2 5645 m 100 Tasmania Transition offshore waters. Western This transitional bioregion is located west Bass Strait of Tasmania on the southeast margin of 37 130 km2 272 m 85.41 Shelf the Australian mainland, in inshore shelf Transition regions. This strongly defined bioregion is located on the southern margin of Australia. It contains the Diamantina Fracture Zone, a region of very rugged seabed comprising numerous deep-sea ridges and troughs. Southern not This is a unique region of deep-sea 774 120 km2 15.51 Province calculated habitats (CoA 2005), with 463 demersal fish species and 26 endemic species. The central distribution of demersal fishes is located in the Great Australian Bight (Last et al. 2005).
flora and fauna with a high proportion of endemic algal and invertebrate species. The deep-water fauna is closely allied biogeographically to the fauna of the New Zealand subantarctic islands and has probably migrated to the island along the Macquarie Ridge. Tasmania Province This strongly defined bioregion is located south of Tasmania on the southeast margin of Australia. It has 486 demersal fish species, with 52 endemic species. This bioregion is characterised by a large number of seamounts that contain endemic fishes. The Cascade Seamount is included because its is more closely associated with fauna found on other seamounts in the Southern Ocean. Because of its shallow depth, the South Tasman Rise contains species of fish otherwise found on the upper slope of the Tasmanian margin. Studies have shown that the benthic fauna at the foot of the slope and the abyssal plain in this bioregion are similar and distinct from benthic fauna on the top of the Cascade Plateau (DEH 2005). 300 190 km2 5584 m 100 Tasmanian Shelf Province This bioregion is located on the shelf regions of eastern, southern and western Tasmania. 59 300 km2 834 m 63.89 Bass Strait Shelf Province This bioregion is located on the region of northern Tasmania and the Bass Strait. 96 670 km2 90 m 87.8 West Tasmania Transition This transitional bioregion is located west of Tasmania on the southeast margin of the Australian mainland, on deeper offshore waters. 289 850 km2 5645 m 100 Western Bass Strait Shelf Transition This transitional bioregion is located west of Tasmania on the southeast margin of the Australian mainland, in inshore shelf regions. 37 130 km2 272 m 85.41 Southern Province This strongly defined bioregion is located on the southern margin of Australia. It contains the Diamantina Fracture Zone, a region of very rugged seabed comprising numerous deep-sea ridges and troughs. This is a unique region of deep-sea habitats (CoA 2005), with 463 demersal fish species and 26 endemic species. The central distribution of demersal fishes is located in the Great Australian Bight (Last et al. 2005). 774 120 km2 not calculated 15.51
south-east-marine-region-profile.docx