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The Indian Ocean is the third-largest of the world's five oceanic divisions, covering 70,560,000 km2 (27,240,000 sq mi) or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. Along its core, the Indian Ocean has some large marginal or regional seas such as the Arabian Sea, Laccadive Sea, Bay of Bengal and Andaman Sea.
An island or isle is a piece of subcontinental land completely surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges Delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago.
Oceania is a geographical region that is described as a continent in some parts of the world. It includes Australasia, Melanesia, Micronesia, and Polynesia. Spanning the Eastern and Western Hemispheres, Oceania is estimated to have a land area of 8,525,989 square kilometres (3,291,903 sq mi) and a population of around 44.4 million as of 2022. Oceania is described as a geographical region in most of the English-speaking world, but outside of the English-speaking world, Oceania is described as one of the continents. In this model of the world, Australia is only seen as an island nation contained inside of the continent of Oceania, and not a continent by itself. When compared to the other continents, Oceania is the smallest in land area and the second least populated after Antarctica.
A tsunami is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event.
The Great Australian Bight is a large oceanic bight, or open bay, off the central and western portions of the southern coastline of mainland Australia.
Humpback dolphins are members of the genus Sousa. These dolphins are characterized by the conspicuous humps and elongated dorsal fins found on the backs of adults of the species. They are found close to shore along the coast of West Africa and right along the coast of the Indian Ocean from South Africa to Australia. Several institutions have made a proposal to divide the Indo-Pacific species into two distinct species: the Indo-Pacific humpback dolphin and the Australian humpback dolphin.
The Australian Indian Ocean Territories is the name since 1995 of an administrative unit under the Australian Department of Infrastructure, Transport, Regional Development, Communications and the Arts, consisting of two island groups in the Indian Ocean under Australian sovereignty:
The Christmas Island shrew, also known as the Christmas Island musk-shrew is an extremely rare or possibly extinct shrew from Christmas Island. It was variously placed as subspecies of the Asian gray shrew or the Southeast Asian shrew, but morphological differences and the large distance between the species indicate that it is an entirely distinct species.
Oceanic is an American manufacturer of scuba gear. It was founded by Bob Hollis in 1972 and is based in San Leandro, California, United States. Its products include dive computers, rebreathers and a novel diving mask incorporating a heads-up-display of information.
Gondwana was the more southern of two large landmasses that formed part of the Pangaea supercontinent from around 335 to 175 million years ago (Mya), the other being Laurasia. It formed during the late Neoproterozoic and began to break away from Pangaea during the Jurassic period. The final stages of break-up, involving the separation of Antarctica from South America and Australia, occurred during the Paleogene. Gondwana was not considered a supercontinent by the earliest definition, since the landmasses of Baltica, Laurentia, and Siberia were separated from it. To differentiate it from the Indian region of the same name, it is also commonly called Gondwanaland.
A continent is any of several large geographical regions. Continents are generally identified by convention rather than any strict criteria. A continent could be a single landmass or a part of a very large landmass, as in the case of Asia or Europe. Due to this, the number of continents varies; up to seven or as few as four geographical regions are commonly regarded as continents. Most English-speaking countries recognize seven regions as continents. In order from largest to smallest in area, these seven regions are Asia, Africa, North America, South America, Antarctica, Europe, and Australia. Different variations with fewer continents merge some of these regions, examples of this are merging North America and South America into America, Asia and Europe into Eurasia, and Africa, Asia, and Europe into Afro-Eurasia.
Kokota is spoken on Santa Isabel Island, which is located in the Solomon Island chain in the Pacific Ocean. Santa Isabel is one of the larger islands in the chain, but it has a very low population density. Kokota is the main language of three villages: Goveo and Sisigā on the North coast, and Hurepelo on the South coast, though there are a few speakers who reside in the capital, Honiara, and elsewhere. The language is classified as a 6b (threatened) on the Graded Intergenerational Disruption Scale (GIDS). To contextualize '6b', the language is not in immediate danger of extinction since children in the villages are still taught Kokota and speak it at home despite English being the language of the school system. However, Kokota is threatened by another language, Cheke Holo, as speakers of this language move from the west of the island closer to the Kokota-speaking villages. Kokota is one of 37 languages in the Northwestern Solomon Group, and as with other Oceanic languages, it has limited morphological complexity.
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 20,327,000 km2 (7,848,000 sq mi), 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. Since the 1980s, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem.
Cape Baily Light is an active lighthouse located at Cape Baily, a headland at the south side of the entrance to Botany Bay, New South Wales, Australia. The light serves to help north-bound shipping hug the coast to avoid the strong southerly currents further out to sea.
The Samurai Kill is the 215th novel in the long-running Nick Carter-Killmaster series. It was first published in 1986.
Maii (Mae) is an Oceanic language spoken on Epi Island, in Vanuatu.
Ocean Victory is a Fincantieri super yacht, designed by Espen Øino (Oeino) and Alberto Pinto. At 140m long she was at the time of her construction one of the top 10 largest yachts in the world. She is reported to have seven decks, a helipad, six pools, and can accommodate a 14m tender in a floodable garage. She can accommodate 36 guests.
Acropora muricata, commonly called staghorn coral, is a species of acroporid coral found in the Gulf of Aden, the Red Sea, Indian Ocean, Persian Gulf, Australia, central Indo-Pacific, Japan, Southeast Asia, the East China Sea and the oceanic central and western Pacific Ocean. It is found in tropical shallow reefs, slopes of reefs, and in lagoons, from depths of 5 to 30 m. It was described by Dana in 1846.
Acropora robusta is a species of acroporid coral found in the Red Sea, the Gulf of Aden, the southwest and northern Indian Ocean, the central Indo-Pacific, Australia, Southeast Asia, Japan, the East China Sea and the oceanic west and central Pacific Ocean. It occurs in tropical shallow reefs, mainly along margins that are exposed to the action of strong waves, and can be found at depths from 1 to 8 metres. It was described by Dana in 1846.
Acropora valida is a species of acroporid coral found in the Red Sea, the Gulf of Aden, the southwestern, northwestern and northern Indian Ocean, the Persian Gulf, the central Indo-Pacific, Australia, southeast Asia, Japan, the East China Sea, the oceanic western, central and far eastern Pacific Ocean, the northwestern Hawaiian Islands and Johnston Atoll. It occurs in tropical shallow reefs in a variety of reef habitats, at depths of 1 to 15 metres.
References
- ↑ "MONDAY". The Canberra Times . 16 August 1965. p. 2 Section: TELEVISION and radio GUIDE. Retrieved 14 November 2015– via National Library of Australia.
