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Northwest Shelf Transition
The Northwest Shelf Transition, also known as Bonaparte Coast, is a biogeographic region of Australia's continental shelf. It adjoins the Kimberley region of Western Australia and the adjacent coast of the Northern Territory. Geography The Northwest Shelf Transition includes the coastal waters and continental shelf of northeastern Western Australia and the northwestern Northern Territory, between Cape Leveque and the Tiwi Islands. It has an area of 305,463 km2, extending from the shore to 330 metres depth. Most of the region ranges from 10 to 100 metres depth. The Northwest Shelf Province lies to the west, and the Northern Shelf Province to the east. The continental slope and deep ocean waters of the Timor Sea lie to the north. Oceanography The waters are tropical. Surface waters are generally from the Indonesian Throughflow. The shoreline is complex, with rocky headlands, embayments, beaches, estuaries, and offshore islands. The seafloor is also complex, with submerged terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IMCRA 4
The Integrated Marine and Coastal Regionalisation of Australia (IMCRA), formerly the Interim Marine and Coastal Regionalisation for Australia, is a biogeography, biogeographic regionalisation of the oceanic waters of Australia's exclusive economic zone (EEZ). As of 2008, the most recent version is IMCRA Version 4.0. IMCRA actually defines two bioregionalisations: a benthic bioregionalisation, based on biogeography of fish together with geophysics, geophysical data; and a pelagic bioregionalisation, base on oceanography, oceanographic characteristics. The benthic bioregionalisation incorporates three separate regionalisations: #A regionalisation of the EEZ into provincial bioregions, based on the biogeography of bottom dwelling fishes. In IMCRA 4.0, 41 provincial bioregions, consisting of 24 ''provinces'' and 17 ''transitions''. #A regionalisation of the continental shelf into ''meso-scale regions'' based on biological and physical characters, and the distance from the coast. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olive Ridley Turtle
The olive ridley sea turtle (''Lepidochelys olivacea''), also known commonly as the Pacific ridley sea turtle, is a species of turtle in the family Cheloniidae. The species is the second-smallest and most abundant of all sea turtles found in the world. ''L. olivacea'' is found in warm and tropical waters, primarily in the Pacific and Indian Oceans, but also in the warm waters of the Atlantic Ocean. This turtle and the related Kemp's ridley turtle are best known for their unique synchronised mass nestings called ''arribadas'', where thousands of females come together on the same beach to lay eggs. Taxonomy The olive ridley sea turtle may have been first described as ''Testudo mydas minor'' by Georg Adolf Suckow in 1798. It was later described and named ''Chelonia multiscutata'' by Heinrich Kuhl in 1820. Still later, it was described and named ''Chelonia olivacea'' by Johann Friedrich von Eschscholtz in 1829. The species was placed in the subgenus ''Lepidochelys'' by Leopold Fit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of Australia
Ecoregions in Australia are geographically distinct plant and animal communities, defined by the World Wide Fund for Nature based on geology, soils, climate, and predominant vegetation. The World Wide Fund for Nature (WWF) identified 825 terrestrial ecoregions that cover the Earth's land surface, 40 of which cover Australia and its dependent islands. The WWF ecoregions are classified by biome type (tropical and subtropical moist broadleaf forests, temperate grasslands, savannas, and shrublands, tundra, etc.), and into one of eight terrestrial realms. Australia, together with New Zealand, New Guinea and neighboring island groups, is part of the Australasian realm. The IBRA bioregions informed the delineation of the WWF ecoregions for Australia, and the WWF ecoregions generally follow the same ecoregion boundaries, while often clustering two or more similar bioregions into a larger ecoregion. The ecoregion articles in Wikipedia generally follow the WWF scheme. The WWF ecoregions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biogeography Of The Northern Territory
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.Brown University, "Biogeography." Accessed February 24, 2014. . Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals. Mycogeography is the branch that studies distribution of fungi, such as mushrooms. Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, taxonomy, geology, physical geography, palaeontology, and climatology.Dansereau, Pierre. 1957 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biogeography Of Western Australia
Western Australia occupies nearly one third of the Australian continent. Due to the size and the isolation of the state, considerable emphasis has been made of these features; it is the second largest administrative territory in the world, after Yakutia in Russia, despite the fact that Australia is only the sixth largest country in the world by area, and no other regional administrative jurisdiction in the world occupies such a high percentage of a continental land mass. It is also the only first level administrative subdivision to occupy the entire continental coastline in one cardinal direction. Its capital city, Perth, is also considered to be amongst the world's most isolated, being closer to Jakarta in Indonesia, than to the Australian national capital in Canberra. Introduction Western Australia's geology has components that are considered some of the oldest and most recent. The oldest minerals of the world have been discovered at the Jack Hills, and the Yilgarn Crat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonaparte Gulf
Joseph Bonaparte Gulf is a large body of water off the coast of the Northern Territory and Western Australia and part of the Timor Sea. It was named after Joseph Bonaparte, brother of Napoleon and King of Naples (1806-1808) and then Spain (1808-1813) by French explorer and naturalist Nicolas Baudin in 1803. It is also often referred to in Australia as the "Bonaparte Gulf". Description The Keep River and Victoria River drain into the gulf in the Northern Territory, the former close to the Western Australia - Northern Territory border. The Ord River, Pentecost River, Durack River, King River and the Forrest River drain into the Cambridge Gulf, another gulf within the southern part of the Joseph Bonaparte Gulf. The Legune (Joseph Bonaparte Bay) Important Bird Area lies at the south-eastern end of the gulf. The Bonaparte Basin is a large sedimentary basin underlying the gulf and a large part of the Timor Sea, deriving its name from the Joseph Bonaparte Gulf, which has several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Sound
King Sound is a large gulf in northern Western Australia. It expands from the mouth of the Fitzroy River, one of Australia's largest watercourses, and opens to the Indian Ocean. It is about long, and averages about in width. The port town of Derby lies near the mouth of the Fitzroy River on the eastern shore of King Sound. King Sound has the highest tides in Australia, and amongst the highest in the world, reaching a maximum tidal range of at Derby.Derby tides at derbytourism.com.au . Retrieved 7 January 2007 The tidal range and water dynamic were researched in 1997–1998. Waters within the sound are generally turbid. The turbidity is associated with the erosion of |
Integrated Marine And Coastal Regionalisation Of Australia
The Integrated Marine and Coastal Regionalisation of Australia (IMCRA), formerly the Interim Marine and Coastal Regionalisation for Australia, is a biogeographic regionalisation of the oceanic waters of Australia's exclusive economic zone (EEZ). As of 2008, the most recent version is IMCRA Version 4.0. IMCRA actually defines two bioregionalisations: a benthic bioregionalisation, based on biogeography of fish together with geophysical data; and a pelagic bioregionalisation, base on oceanographic characteristics. The benthic bioregionalisation incorporates three separate regionalisations: #A regionalisation of the EEZ into provincial bioregions, based on the biogeography of bottom dwelling fishes. In IMCRA 4.0, 41 provincial bioregions, consisting of 24 ''provinces'' and 17 ''transitions''. #A regionalisation of the continental shelf into ''meso-scale regions'' based on biological and physical characters, and the distance from the coast. In IMCRA 4.0 there are 60 meso-scale r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Ocean
The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian oceans but larger than the Arctic Ocean. Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem. By way of his voyages in the 1770s, James Cook proved that waters encompassed the southern latitudes of the globe. Since then, geographers have disagreed on the Southern Ocean's northern boundary or even existence, considering the waters as various parts of the Pacific, Atlantic, and Indian oceans, instead. However, according to Commodore John Leech of the International Hydrographic Organization (IHO), recent oceanographic research has discovered the importance of Southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humpback Whale
The humpback whale (''Megaptera novaeangliae'') is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus ''Megaptera''. Adults range in length from and weigh up to . The humpback has a distinctive body shape, with long pectoral fins and tubercles on its head. It is known for breaching and other distinctive surface behaviors, making it popular with whale watchers. Males produce a complex song typically lasting 4 to 33 minutes. Found in oceans and seas around the world, humpback whales typically migrate up to each year. They feed in polar waters and migrate to tropical or subtropical waters to breed and give birth. Their diet consists mostly of krill and small fish, and they use bubbles to catch prey. They are promiscuous breeders, with both sexes having multiple partners. Orcas are the main natural predators of humpback whales. Like other large whales, the humpback was a target for the whaling industry. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pristipomoides Multidens
''Pristipomoides multidens'', the goldbanded jobfish or goldbanded snapper, is a species of ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Indian and Pacific Oceans. Taxonomy ''Pristipomoides multidens'' was first formally described in 1871 as ''Mesoprion multidens'' by the English zoologist Francis Day with its type locality given as the Andaman Islands. The specific name is a compound of ''multi'' meaning “many” and ''dens'' meaning “teeth”, this is referring to the six canine teeth in the lower jaw and the two larger ones in the upper jaw. The older name ''Diacope sparus'' was coined by Temminck and Schlegel in 1842 and has been considered a synonym of ''P. multidens'' but it is not certain which taxon is represented by the specimen purported to be the type specimen of ''D. sparus''. Description ''Pristipomoides multidens'' has an elongated, robust body which has a depth of roughly a third of its standard length. The space betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutjanus Erythropterus
''Lutjanus erythropterus'', the crimson snapper, crimson seaperch, high-brow sea-perch, Longman's sea perch, red bream, saddle-tailed perch, small-mouth nannygai or smallmouth sea perch is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Pacific and Indian Oceans. Taxonomy ''Lutjanus erythropterus'' was first formally described in 1790 by the German physician and zoologist Marcus Elieser Bloch with the type locality given as Nagasaki. The specific name is a compound of ''erythros'' meaning “red” and ''pterus'' meaning “fin”, a reference to the red median fins. Description ''Lutjanus erythropterus'' has a moderately deep body which has a standard length of around two and half times its depth with a steeply sloped head and a large eye. The knob and incision on the preoperculum are weakly developed. The vomerine teeth are arranged a crescent shape with no rearwards extension and there are no teeth on the smooth tongue. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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