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Pyura Dalbyi
''Pyura dalbyi'', the yellow cunjevoi, is a species of large, solitary ascidians, or sea squirts. Distribution This species has been found in several localities in Victoria, south-eastern Australia,Dalby, J.E., Jr. (1997) Dimorphism in the ascidian ''Pyura stolonifera'' near Melbourne, Australia, and its evaluation through field transplant experiments. Marine Ecology, 18, 253–271. and in a single locality in Western Australia ( Albany harbour).Rius, M. and Teske, P.R. (2011) A revision of the ''Pyura stolonifera'' species complex (Tunicata, Ascidiacea), with a description of a new species from Australia. Zootaxa 2754: 27-40 ; article available at: http://www.mapress.com/zootaxa/2011/f/zt02754p040.pdf Unlike other species of cunjevoi in temperate Australasia, ''P. dalbyi'' has been found almost exclusively subtidally. Description ''Pyura dalbyi'' has a yellow, sand-free tunic, a highly conspicuous feature that readily distinguishes it from other species of cunjevoi in temperat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascidiacea
Ascidiacea, commonly known as the ascidians, tunicates (in part), and sea squirts (in part), is a polyphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of a polysaccharide. Ascidians are found all over the world, usually in shallow water with salinities over 2.5%. While members of the Thaliacea and Larvacea (Appendicularia) swim freely like plankton, sea squirts are sessile animals after their larval phase: they then remain firmly attached to their substratum, such as rocks and shells. There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals (each individual is called a zooid) forming colonies up to several meters in diameter. Sea squirts feed by taking in water through a tube, the oral siphon. The water enters the mouth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria (Australia)
Victoria is a state in southeastern Australia. It is the second-smallest state with a land area of , the second most populated state (after New South Wales) with a population of over 6.5 million, and the most densely populated state in Australia (28 per km2). Victoria is bordered by New South Wales to the north and South Australia to the west, and is bounded by the Bass Strait to the south (with the exception of a small land border with Tasmania located along Boundary Islet), the Great Australian Bight portion of the Southern Ocean to the southwest, and the Tasman Sea (a marginal sea of the South Pacific Ocean) to the southeast. The state encompasses a range of climates and geographical features from its temperate coastal and central regions to the Victorian Alps in the northeast and the semi-arid north-west. The majority of the Victorian population is concentrated in the central-south area surrounding Port Phillip Bay, and in particular within the metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albany, Western Australia
Albany ( ; nys, Kinjarling) is a port city in the Great Southern region in the Australian state of Western Australia, southeast of Perth, the state capital. The city centre is at the northern edge of Princess Royal Harbour, which is a part of King George Sound. The central business district is bounded by Mount Clarence to the east and Mount Melville to the west. The city is in the local government area of the City of Albany. While it is the oldest colonial, although not European, settlement in Western Australia - predating Perth and Fremantle by over two years - it was a semi-exclave of New South Wales for over four years until it was made part of the Swan River Colony. The settlement was founded on 26 December 1826 as a military outpost of New South Wales for the purpose of forestalling French ambitions in the region. To that end, on 21 January 1827, the commander of the outpost, Major Edmund Lockyer, formally took possession for the British Crown of the portion of N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperate
In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout the year and more distinct seasonal changes compared to tropical climates, where such variations are often small and usually only have precipitation changes. In temperate climates, not only do latitudinal positions influence temperature changes, but sea currents, prevailing wind direction, continentality (how large a landmass is) and altitude also shape temperate climates. The Köppen climate classification defines a climate as "temperate" C, when the mean temperature is above but below in the coldest month to account for the persistency of frost. However, other climate classifications set the minimum at . Zones and climates The north temperate zone extends from the Tropic of Cancer (approximately 23.5° north latitude) to the Arctic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different, but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific (Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colonies) and New Zealand. Australasia found continued geopolitical attention in the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunic
A tunic is a garment for the body, usually simple in style, reaching from the shoulders to a length somewhere between the hips and the knees. The name derives from the Latin ''tunica'', the basic garment worn by both men and women in Ancient Rome, which in turn was based on earlier Greek garments that covered wearers' waists. Ancient era Indian tunic Indus valley civilization figurines depict both women and men wearing a tunic-like garment. A terracotta model called Lady of the spiked throne depicts two standing turban-wearing men wearing what appears to be a conical gown marked by a dense series of thin vertical incisions that might suggest stiffened cloth. A similar gold disc in the al-Sabah Collection from the Kuwait National Museum appears to be from the Indus Valley civilization depicts similar conical tunic-wearing men holding two bulls by their tails under a pipal tree shown in an Indus-like mirror symmetry. A mother goddess figurine from the National Museum new Delhi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyura Stolonifera
''Pyura'' is a large genus of sessile ascidians that live in coastal waters at depths of up to 80 m (260 feet). Like all ascidians, ''Pyura'' are filter feeders. A few species, including Pyura chilensis are commercially fished. Species Species in this genus include * '' Pyura abradata'' (Kott, 1985) * '' Pyura ambonensis'' (Millar, 1975) * '' Pyura antillarum'' (Van Name, 1921) * '' Pyura arenosa'' (Herdman, 1882) * '' Pyura aripuensis'' (Herdman, 1906) * '' Pyura australis'' (Quoy & Gaimard, 1834) * '' Pyura baliensis'' (Millar, 1975) * '' Pyura bouvetensis'' (Michaelsen, 1904) * '' Pyura breviramosa'' (Sluiter, 1904) * '' Pyura cadamostoi'' (Monniot, 1994) * '' Pyura camranica'' ( Vorontsova & Cole, 1995) * '' Pyura cancellata'' (Brewin, 1946) * '' Pyura capensis'' (Hartmeyer) * ''Pyura carnea'' (Brewin, 1948) * '' Pyura chilensis'' (Molina, 1782) * '' Pyura columna'' (Monniot & Monniot, 1991) * ''Pyura comma'' (Hartmeyer, 1906) * ''Pyura confragosa'' (Kott, 1985) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyura Praeputialis
''Pyura praeputialis'' is an intertidal and shallow water species of tunicate. It is one of three species of "wikt:cunjevoi, cunjevoi" in Australasia (the other two being the yellow cunjevoi Pyura dalbyi, ''P. dalbyi'' and the doppelganger cunjevoi Pyura doppelgangera, ''P. doppelgangera''). It is the first reported species of marine organism to create a "foam-nest" for its larvae. Distribution ''Pyura praeputialis'' is common in coastal areas of the Australian mainland and ranges from southern Queensland to Cape Otway in Victoria (Australia), Victoria. It is a Introduced species, non-indigenous species in Antofagasta, Chile. This species is an ecosystem engineer that can drastically alter habitats by overgrowing other sessility (zoology), sessile marine invertebrates. This makes it a likely problem species when introduced to new habitats. However, the positive impacts it can have are shelter for juveniles that are being hunted, protection from desiccation, beneficial interaction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyura Doppelgangera
''Pyura doppelgangera'', the doppelganger cunjevoi, is a sessile ascidian, or sea squirt, that lives in coastal waters of Australasia attached to rocks or artificial structures. Distribution This species is particularly common in Tasmania.Rius, M., and Teske, P. R. (2013) Cryptic diversity in coastal Australasia: a morphological and mito-nuclear genetic analysis of habitat-forming sibling species. Zoological Journal of the Linnean Society 168:597-611; article available at https://sites.google.com/site/drpeterteske/all-publications. It has also been reported from South Gippsland, Victoria ( Port Welshpool and Port Albert), South Australia (Adelaide) and the extreme north of New Zealand's North Island. Genetic data from rapidly mutating microsatellites indicate that the species is native to Tasmania and that all non-Tasmanian populations were introduced through human activities during the period of European settlement.Teske, P. R., Sandoval-Castillo, J., Waters, J., and Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
