Western Bass Strait Shelf Transition

It is a provincial bioregion in the Integrated Marine and Coastal Regionalisation of Australia (IMCRA) system.

[3] The continental shelf is generally narrow, and the coast is subject to high-energy waves.

It at the eastern end of the warm Leeuwin Current, which weakens during the summer months, allowing nutrient-rich cold water upwelling along the coast.

During the winter the Leeuwin Current's influence makes the transition's waters warmer than those of the adjacent Bassian and Tasmanian provinces.

[3][1] The Western Bassian marine ecoregion, as delineated by the WWF, includes both the Coorong and Otway bioregions.