Cockburn Sound 3.57

Cockburn Sound is an inlet of the Indian Ocean on the coast of Western Australia. It extends from the south of the mouth of the Swan River at Fremantle for about 25 km to Cape Peron near Rockingham and is located at. The total area of the sound is about 100 km².It is bounded on the east by the mainland suburbs of Cockburn and Kwinana, on the west by Garden Island and Carnac Island, and includes several rocky outcrops and reefs. The Gage Roads shipping channel lies to the north.The sound was named in 1827 by Captain James Stirling, probably after Admiral Sir George Cockburn.The Perth Seawater Desalination Plant can be found here.Water pollutionSeveral media reports have been made on pollution of the water in Cockburn Sound, where in late 2015 an estimated 2,100 fish died as a result of algal blooms through poor local water quality.Reports from 2010 suggest the monitoring of pollutants was not adequate, using degradation of sea-grass since 2005 as a key indicator.