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Melicertus Plebejus
The eastern king prawn is an edible dendrobranch prawn endemic to eastern Australia. Its scientific name is ''Melicertus plebejus'' or ''Penaeus plebejus''. It is caught by commercial and recreational fishers for human food. Names Eastern king prawns are marketed in eastern Australia as "king prawns" without qualification. In southeast Queensland, they may also be called Mooloolabah prawns. The United Nations Food and Agriculture Organization (FAO) uses French and Spanish names that are direct translations of "eastern royal prawn": , . The FAO English name is "Eastern king prawn". Taxonomy and systematics The species was first formally described by Wilhelm Hess in 1865, named ''Penaeus plebejus'' (type locality Sydney). It was also described as ''Penaeus canaliculatus'' var. ''australiensis'' by Charles Spence Bate (1888). Waldo L. Schmitt (1926) described a separate species ''Penaeus maccullochi'' that was said to differ from ''P. plebejus'' in the nature of it carapace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Burkenroad
Martin David Burkenroad (March 20, 1910 – January 12, 1986) was an American marine biologist. He specialized in decapod crustaceans and fisheries science. Biography Burkenroad was born in New Orleans in 1910 as the only child of coffee importer David Burkenroad and his artist wife Flora Salinger. His family contained many eccentrics, and Martin was similarly labeled "headstrong". He entered Tulane University in 1926, but although he published his first papers during that time, his studies ended when he was "'encouraged' to leave" in 1929. He then began working for the Carnegie Marine Biological Laboratory in the Dry Tortugas, before joining the Louisiana Department of Conservation in 1931, where he studied the local shrimp fishery. After brief spells at several museums, he joined Yale University under the guidance of A. E. Parr. Burkenroad spent many productive years at Yale, where the usual time limit for research for a dissertation was permanently waived for him, but he n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penaeidae
Penaeidae is a family of marine crustaceans in the suborder Dendrobranchiata, which are often referred to as penaeid shrimp or penaeid prawns. The Penaeidae contain many species of economic importance, such as the tiger prawn, whiteleg shrimp, Atlantic white shrimp, and Indian prawn. Many prawns are the subject of commercial fishery, and farming, both in marine settings, and in freshwater farms. Lateral line–like sense organs on the antennae have been reported in some species of Penaeidae. At , the myelinated giant interneurons of pelagic penaeid shrimp have the world record for impulse conduction speed in any animal. Genera Of the 48 recognised genera in the family Penaeidae, 23 are known only from the fossil record (marked †): * † '' Albertoppelia'' Schweigert & Garassino, 2004 * † ''Ambilobeia'' Garassino & Pasini, 2002 * † ''Antrimpos'' Münster, 1839 * '' Artemesia'' Bate, 1888 * '' Atypopenaeus'' Alcock, 1905 * † '' Bombur'' Münster, 1839 * † ''Bylgia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otter Trawling
Bottom trawling is trawling (towing a trawl, which is a fishing net) along the seafloor. It is also referred to as "dragging". The scientific community divides bottom trawling into benthic trawling and demersal trawling. Benthic trawling is towing a net at the very bottom of the ocean and demersal trawling is towing a net just above the benthic zone. Bottom trawling can be contrasted with midwater trawling (also known as pelagic trawling), where a net is towed higher in the water column. Midwater trawling catches pelagic fish such as anchovies and mackerel, whereas bottom trawling targets both bottom-living fish (groundfish) and semi-pelagic species such as cod, squid, shrimp, and rockfish. Trawling is done by a trawler, which can be a small open boat with only or a large factory trawler with . Bottom trawling can be carried out by one trawler or by two trawlers fishing cooperatively (pair trawling). Global catch from bottom trawling has been estimated at over 30 million to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demersal Zone
The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone. Being just above the ocean floor, the demersal zone is variable in depth and can be part of the photic zone where light can penetrate, and photosynthetic organisms grow, or the aphotic zone, which begins between depths of roughly and extends to the ocean depths, where no light penetrates. Fish The distinction between demersal species of fish and pelagic species is not always clear cut. The Atlantic cod (''Gadus morhua'') is a typical demersal fish, but can also be found in the open water column, and the Atlantic herring (''Clupea harengus'') is predominantly a pelagic species but forms large aggregations near the seabed when it spawns on banks of gravel. Two types of fish inhabit the demersal zone: those t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunter River (New South Wales)
The Hunter River (Wonnarua: ''Coquun'') is a major river in New South Wales, Australia. The Hunter River rises in the Liverpool Range and flows generally south and then east, reaching the Tasman Sea at Newcastle, the second largest city in New South Wales and a major harbour port. Its lower reaches form an open and trained mature wave dominated barrier estuary. Course and features The Hunter River rises on the western slopes of Mount Royal Range, part of the Liverpool Range, within Barrington Tops National Park, east of Murrurundi, and flows generally northwest and then southwest before being impounded by Lake Glenbawn; then flowing southwest and then east southeast before reaching its mouth of the Tasman Sea, in Newcastle between Nobbys Head and Stockton. The river is joined by ten tributaries upstream of Lake Glenbawn; and a further thirty-one tributaries downstream of the reservoir. The main tributaries are the Pages, Goulburn, Williams and the Paterson rivers and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexham, New South Wales
Hexham is a suburb of the city of Newcastle, about inland from the Newcastle CBD in New South Wales, Australia on the bank of the Hunter River. Settlement occurred at Hexham in the 1820s when the land was granted to Edward Sparke. Hexham was named after the market town of Hexham, England with both towns being near to a Newcastle and sharing a history with one another; many of the coal miners from Newcastle upon Tyne and elsewhere in Northumberland moved to New South Wales at the time of settlement. The history of Hexham is closely associated with that of the nearby suburbs of Tarro (originally Upper Hexham), Ash Island, Tomago and Minmi. Geography Hexham measures approximately from north to south and from east to west, covering an area of . The suburb is bordered to the east by the Hunter River - Coquun and by Ironbark Creek - Toohrnbing to the south, while to the west the suburb consists mainly of unproductive swampland and floodplains. Almost all settlement exists with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Helens, Tasmania
St Helens is the largest town on the north-east coast of Tasmania, Australia, on Georges Bay. It is known as the game fishing capital of Tasmania and is also renowned for its oysters (as are some other areas of Tasmania). It is located on the Tasman Highway, about 160 km east of Tasmania's second largest city, Launceston. In the early 2000s, the town was one of the fastest growing areas of Tasmania, and reached a population of 2049 at the 2006 census. By the time of the , it had a population of 2,206. St Helens is part of the Break O'Day Council, a council that includes the nearby town of Binalong Bay. St Helens also has its own radio station named Star FM a community station on 93.7 MHz in the town, 100.3 MHz in St Marys and 98.5 MHz in Bicheno. A number of shops can be found in the town along Cecilia Street, such as a Supa IGA and Gallery Parnella. History St Helens was first used as a whaling base in the early 19th century. When tin was discovered in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Entrance, Victoria
Lakes Entrance is a seaside resort and fishing port in eastern Victoria, Australia. It is situated approximately east of Melbourne, near a managed, artificial channel connecting the Gippsland Lakes to Bass Strait. At the 2016 census, Lakes Entrance had a population of 4,810. The township was originally named Cunninghame, the Post Office of that name opening on 5 February 1870. It was renamed Lakes Entrance on 1 January 1915. Description Lakes Entrance, which lies almost at sea level, can be reached from Melbourne via Bairnsdale and the town of Kalimna to the north-west by a stretch of the Princes Highway, which snakes down and around a point protruding into the Gippsland Lakes known as "Jemmy's Point". Views of The Entrance and of the Lakes can be seen from various look-outs on Jemmy's Point. The Princes Highway leaves the north-east side of the town through hilly countryside towards Nowa Nowa and Orbost. It has the largest number of inland waterways in the southern hemisphe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockhampton
Rockhampton is a city in the Rockhampton Region of Central Queensland, Australia. The population of Rockhampton in June 2021 was 79,967, Estimated resident population, 30 June 2018. making it the fourth-largest city in the state outside of the cities of South East Queensland, and the 22nd-largest city in Australia. Today, Rockhampton is an industrial and agricultural centre of the north, and is the regional centre of Central Queensland. Rockhampton is one of the oldest cities in Queensland and in Northern Australia. In 1853, Charles and William Archer came across the Toonooba river, which is now also known as the Fitzroy River, which they claimed in honour of Sir Charles FitzRoy. The Archer brothers took up a run near Gracemere in 1855, and more settlers arrived soon after, enticed by the fertile valleys. The town of Rockhampton was proclaimed in 1858, and surveyed by William Henry Standish, Arthur F Wood and Francis Clarke, the chosen street design closely resembled the Hod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bass Strait
Bass Strait () is a strait separating the island state of Tasmania from the Australian mainland (more specifically the coast of Victoria, with the exception of the land border across Boundary Islet). The strait provides the most direct waterway between the Great Australian Bight and the Tasman Sea, and is also the only maritime route into the economically prominent Port Phillip Bay. Formed 8,000 years ago by rising sea levels at the end of the last glacial period, the strait was named after English explorer and physician George Bass (1771-1803) by European colonists. Extent The International Hydrographic Organization defines the limits of Bass Strait as follows: :''On the west.'' The eastern limit of the Great Australian Bight eing a line from Cape Otway, Australia, to King Island (Tasmania)">King Island and thence to Cape Grim, the northwest extreme of Tasmania]. :''On the east.'' The western limit of the Tasman Sea between Gabo Island and Eddystone Point eing a line fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
