Submarine canyon off the coast of Perth, Western Australia
Perth Canyon is a submarine canyon located on the edge of the continental shelf off the coast of Perth, Western Australia, approximately 22 kilometres (14 mi) west of Rottnest Island. It was carved by the Swan River, probably before the Tertiary, when this part of the continental shelf was above sea level. It is an average of 1.5 kilometres (5,000 ft) deep and 15 kilometres (9.3 mi) across, making it similar in dimension to the Grand Canyon.[1]
It occupies an area of 2,900 square kilometres (1,100 sq mi) and ranges in depth from 700 to 4,000 metres (2,300 to 13,100 ft). Within a few kilometres its depth drops from 200 metres (660 ft) down to 1,000 metres (3,300 ft), and then it continues as a deep gully all the way out to the 4,000-metre (13,000 ft) depth, which is about another 30 kilometres (20 mi) farther west. It contains the world's largest plunge pool—a depression in the canyon that is 2 kilometres (1.2 mi) long, 6 kilometres (3.7 mi) across, and 300 metres (980 ft) deep. The canyon is considered "a perfect spot" for deep sea fishing.
The Perth Canyon is a feeding ground for pygmy blue whales, especially at the rims of the abyss. It is also a training ground for the Royal Australian Navy Submarine Service, stationed at a naval base at nearby Garden Island.
In June 2006 the waters around the Perth Canyon were the site of an ocean vortex 200 kilometres (120 mi) in diameter and 1,000 metres (3,300 ft) deep. It was visible from space, and scientists claimed at the time that it had the potential to affect the local climate and the climate further abroad. The vortex was described by scientists as a marine "death trap", as it sucked in fish larvae.[2]
^Seddon, George (2004). Sense of Place (Facsimile ed.). Melbourne: Bloomings Books. ISBN 1-876473-53-3.
^"Massive ocean vortex found off WA coast". The Age. 2 June 2006. Retrieved 14 July 2011.
PerthCanyon is a submarine canyon located on the edge of the continental shelf off the coast of Perth, Western Australia, approximately 22 kilometres...
Portugal, reaches abyssal depths of 5,000 m (16,404 ft) PerthCanyon, off the coast of Perth, Western Australia, reaches a depth of 4,000 m (13,123 ft)...
Recherche Marine Park Geographe Great Australian Bight Jurien Murat PerthCanyon South-west Corner Southern Kangaroo Island Twilight Two Rocks Western...
underwater in areas that were formerly above sea level, for example, PerthCanyon off the coast of Western Australia. Plunge pools are fluvial features...
heard by Navy submariners and known as the bioduck is common in the [Perth] Canyon during late July-Dec [1999-2004]. The seasonal timing of the bioduck...
grounds off the coast of Western Australia, with major concentrations at PerthCanyon and an area stretching from the Great Australian Bight and Bass Strait...
canyons and gorges includes both land and submarine canyons with the land canyons being sorted by continent and then by country. Blyde River Canyon,...
species of glass sponge in the family Euplectellidae, first found in the PerthCanyon at a depth of 695 m, off the Western Australian coast. "Australian Faunal...
the mid-2000s. It has been recorded in the Ross and Lazarev Seas, over PerthCanyon, off Western Australia from late June to early December, and in the King...
the 2006 discovery of a 200 km diameter vortex in the waters above the PerthCanyon off the coast of Rottnest Island, Western Australia. In 2012 the Southern...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
Fromont and Andrzej Pisera in 2011, from a specimen collected in the Perthcanyon west of Rottnest Island at a depth of 194–232 m. The species epithet...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
migrating humpbacks,[citation needed] and fewer southern rights, and the PerthCanyon off the island is one of main habitats for blue whales in Australia,...
observatory (RCS) 40 km west of Rottnest Island, Western Australia, near the PerthCanyon. IMOS stations have just one hydrophone each and therefore cannot provide...
descriptions as a fallback, (2012), 937.77 km2 (362.08 sq mi), IUCN category II PerthCanyon Marine Park – Australian marine park in the South-west Marine Parks network...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
migratory pathways to the ecology and behaviours of whales. They identified PerthCanyon as one of only two high-density feeding sites for endangered pygmy blue...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
South-west Marine Park Network Abrolhos Jurien Two Rocks PerthCanyon Geographe South-west Corner Eastern Recherche Twilight Bremer Great Australian Bight...
Rowley Shoals, Scott Reef, and Seringapatam Reef, North-western Australia Perth, W.A. : Western Australian Museum, Records of the Western Australian Museum...
Global Information