Canning River (Western Australia)
Passengers leave the river steamer Silver Star at the Coffee Point; in the background the old Canning Bridge (ca. 1906)
The Canning River is a river in south-west of the Australian state of Western Australia.
- 2.1 convicts
- 3.1 algal bloom
Geography
The source of the river lies on the western slopes of the Darling Range about 10 km north of the town of North Bannister, east of Albany Highway. The river flows northwest past at Mount Cooke Mount Randall, always in 5 - 10 km Distance to the highway. It crosses the northwestern part of the Monadnock Conservation Reserve and is dammed just before reaching the urban area of Perth to Canning Reservoir. From there, the river continues to flow to the northwest and meanders through the south-eastern suburbs of Perth in the coastal plain of the Swan River, such as Cannington, Thornlie, Riverton, Shelley, Rossmoyne and Mount Pleasant. In Melville Water, below the Canning Bridge, opens the Canning River in the Swan River.
Tributaries with muzzle heights
- Canning River South - 191 m
- Southern River - 15 m
- Bickley Brook - 14 m
History
For the first time in 1801 Europeans saw the river, as a French expedition discovered the mouth of the Swan River. The team called the mouth of Entrée Moreau by Charles Moreau, their midshipmen.
The Canning River got its present name in 1827 by Captain James Stirling aboard HMS Success after researching this area in March 1827. Stirling named the river after George Canning, a major British politician, who was then British Prime Minister and his government funding for the expedition approved.
In November 1829, only five months after the founding of the Swan River Colony, put another expedition under the leadership of Governor James Stirling a place for a new city finds the Kelmscott was called ( for a place on the Thames ) and on the banks of the Canning River was.
Convicts
Convicts built the Canning River Convict Fence, allowing boats wood of Mason 's Timber Mill in the Darling Range could transport to Perth. He is still a landmark today.
Ecology
In and near the river many wild animals such as dolphins, pelicans, swans and many other species of birds.
Algal bloom
A natural algae bloom occurs in the river system of the Canning River before regularly. It is caused by the buildup of nutrients in the river. Human activities, such as agriculture and the provision of home gardens and parks have this phenomenon only intensified. The flowers are probably toxic to mammals as well as fish and other aquatic life. The Swan River Trust monitors the level of nutrients and algae growth and gives out warnings or blocks flow sections for swimmers and water sports enthusiasts. The Trust also performs cleaning programs to reduce the amount of nutrients that reached the river, as well as dephosphorization and oxygen transfer at locations where algal bloom was observed.
The emergence of Algenfarnteppichen on parts of the Canning River has welcomed, as this fern limits the amount of sunlight that is available for the algae, and large amounts of phosphorus and other nutrients absorbed from the water of the Trust. It is also possible that Algenfarnteppiche cause a reduction of the oxygen content in the water and give off a strong smell of sulfur ..