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Moxostoma Robustum
The robust redhorse (''Moxostoma robustum'') is a redhorse-type fish that lives in the freshwater streams of the eastern United States. It was previously called the smallfin redhorse. Taxonomy Using a specimen from the Yadkin River of North Carolina, naturalist Edward Drinker Cope first described the robust redhorse as ''Ptychostomus robustus'' in 1870. The original specimen was lost or destroyed, and by the late 19th century, all mention of the robust redhorse had ceased. It was thought to be extinct until several unidentified fish specimens were collected from the Savannah River and Pee Dee River in 1980 and 1985. In August 1991, biologists with the Georgia Department of Natural Resources officially rediscovered the species when five specimens of the fish were collected in the Oconee River, and identified as robust redhorse. Description ''M. robustum'' is a large, fairly long-living animal compared to other members of its family; the fish can weigh up to and live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Lip
The lips are the visible body part at the mouth of many animals, including humans. Lips are soft, movable, and serve as the opening for food intake and in the articulation of sound and speech. Human lips are a tactile sensory organ, and can be an erogenous zone when used in kissing and other acts of intimacy. Structure The upper and lower lips are referred to as the "Labium superius oris" and "Labium inferius oris", respectively. The juncture where the lips meet the surrounding skin of the mouth area is the vermilion border, and the typically reddish area within the borders is called the vermilion zone. The vermilion border of the upper lip is known as the cupid's bow. The fleshy protuberance located in the center of the upper lip is a tubercle known by various terms including the procheilon (also spelled ''prochilon''), the "tuberculum labii superioris", and the "labial tubercle". The vertical groove extending from the procheilon to the nasal septum is called the philtr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of North America
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moxostoma
''Moxostoma'', the redhorses or jumprocks, is a genus of North American ray-finned fish in the family Catostomidae. Species * ''Moxostoma albidum'' ( Girard, 1856) (Longlip jumprock) * '' Moxostoma anisurum'' ( Rafinesque, 1820) (Silver redhorse) * ''Moxostoma ariommum'' C. R. Robins & Raney, 1956 (Bigeye jumprock) * ''Moxostoma austrinum'' T. H. Bean, 1880 (Mexican redhorse) * '' Moxostoma breviceps'' (Cope, 1870) (Smallmouth redhorse) * '' Moxostoma carinatum'' (Cope, 1870) (River redhorse) * '' Moxostoma cervinum'' (Cope, 1868) (Blacktip jumprock) * '' Moxostoma collapsum'' (Cope, 1870) (Notchlip redhorse) * '' Moxostoma congestum'' ( S. F. Baird & Girard, 1854) (Gray redhorse) * '' Moxostoma duquesni'' ( Lesueur, 1817) (Black redhorse) * '' Moxostoma erythrurum'' ( Rafinesque, 1818) (Golden redhorse) * '' Moxostoma hubbsi'' V. Legendre, 1952 (Copper redhorse) * '' Moxostoma lacerum'' ( D. S. Jordan & Brayton, 1877) (Harelip sucker) * ''Moxostoma lachneri'' C. R. Robi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley, and rely on the natural topography to provide most of the basin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt also can be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average modern mud. It is found in many river deltas and as wind-deposited accumulations, particularly in central Asia, north China, and North America. It is produced in both very hot climates (through such processes as collisions of quartz grains in dust storms) and very cold climates (through such processes as glacial grinding of quartz grains.) Loess is soil rich in silt which makes up some of the most fertile agricultural land on Earth. However, silt is very vulnerable to erosion, and it has poor mechanical properties, making construc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altamaha River
The Altamaha River is a major river in the U.S. state of Georgia. It flows generally eastward for 137 miles (220 km) from its origin at the confluence of the Oconee River and Ocmulgee River towards the Atlantic Ocean, where it empties into the ocean near Brunswick, Georgia. No dams are directly on the Altamaha, though some are on the Oconee and the Ocmulgee. Including its tributaries, the Altamaha River's drainage basin is about in size, qualifying it among the larger river basins of the US Atlantic coast.The Altamaha River Course [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgia (U
Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the country in the Caucasus ** Kingdom of Georgia, a medieval kingdom ** Georgia within the Russian Empire ** Democratic Republic of Georgia, established following the Russian Revolution ** Georgian Soviet Socialist Republic, a constituent of the Soviet Union * Related to the US state ** Province of Georgia, one of the thirteen American colonies established by Great Britain in what became the United States ** Georgia in the American Civil War, the State of Georgia within the Confederate States of America. Other places * 359 Georgia, an asteroid * New Georgia, Solomon Islands * South Georgia and the South Sandwich Islands Canada * Georgia Street, in Vancouver, British Columbia, Canada * Strait of Georgia, British Columbia, Canada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peedee River
The Pee Dee River, also known as the Great Pee Dee River, is a river in the Carolinas of the United States. It originates in the Appalachian Mountains in North Carolina, where its upper course, above the mouth of the Uwharrie River, is known as the Yadkin River. The river empties into Winyah Bay, and then into the Atlantic Ocean near Georgetown. The northeastern counties of South Carolina compose the Pee Dee region of the state. The exposed rock formations along its course are the source of a NIST reference standard. It is an important source of electric power and public water supplies, as well as recreational use. While the Pee Dee is free-flowing in South Carolina, upstream in North Carolina, several dams have been constructed on it. The opening and closing of these dams causes dramatic swings in the depth of the river in South Carolina. The sharing of water between the two states has sometimes been a matter of controversy, particularly during periods of drought. Some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Carolina
North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and South Carolina to the south, and Tennessee to the west. In the 2020 census, the state had a population of 10,439,388. Raleigh is the state's capital and Charlotte is its largest city. The Charlotte metropolitan area, with a population of 2,595,027 in 2020, is the most-populous metropolitan area in North Carolina, the 21st-most populous in the United States, and the largest banking center in the nation after New York City. The Raleigh-Durham-Cary combined statistical area is the second-largest metropolitan area in the state and 32nd-most populous in the United States, with a population of 2,043,867 in 2020, and is home to the largest research park in the United States, Research Triangle Park. The earliest evidence of human occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage
Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need artificial drainage to improve production or to manage water supplies. History Early history The Indus Valley civilization had sewerage and drainage systems. All houses in the major cities of Harappa and Mohenjo-daro had access to water and drainage facilities. Waste water was directed to covered gravity sewers, which lined the major streets. 18th and 19th century The invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple, who died in 1753. Current practices Geotextiles New storm water drainage systems incorporate geotextile filters that retain and prevent fine grains of soil from passing into and clogging the drain. Geotextiles are synthetic textile fabrics speciall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Fear River
The Cape Fear River is a long blackwater river in east central North Carolina. It flows into the Atlantic Ocean near Cape Fear, from which it takes its name. The river is formed at the confluence of the Haw River and the Deep River (North Carolina) in the town of Moncure, North Carolina. Its river basin is the largest in the state: 9,149 square miles. The river is the most industrialized river in North Carolina, lined with power plants, manufacturing plants, wastewater treatment plants, landfills, paper mills and industrial agriculture. Relatedly, the river is polluted by various substances, including suspended solids and runoff and manmade chemicals. These chemicals include per- and polyfluoroalkyl substances (PFAS), GenX, perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), byproducts of production of the fluoropolymer Nafion; and intermediates used to make other fluoropolymers (e.g. PPVE, PEVE and PMVE Perfluoroether). Industrial chemicals such as 1,4- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
