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Semotilus Thoreauianus
The Dixie chub (''Semotilus thoreauianus'') is a species of freshwater ray-finned fish from the carp and minnow family Cyprinidae. It is endemic to southeastern United States. Description The Dixie chub is similar in shape to the creek chub, (''Semotilus atromaculatus'') although it is typically a more robust and shorter than the creek chub. It also has larger and fewer lateral line scales, the origin of the dorsal fin is to the rear of that of the pelvic fin whereas in ''S. atromaculatus'' it sits directly over the pelvic fin origin, and the spots on the dorsal fin and caudal fin are less distinct. In the breeding season the males develop four large, hooked tubercles on either side of the head, with those nearest the nares frequently becoming fused. They are generally dark on the back, with the underside being colored from orange to pink on the underside while its fins are yellow-orange. Compared to ''S. atromaculatus'' the Dixie chub has a smaller number of head tubercles o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Starr Jordan
David Starr Jordan (January 19, 1851 – September 19, 1931) was the founding president of Stanford University, serving from 1891 to 1913. He was an ichthyologist during his research career. Prior to serving as president of Stanford University, he had served as president of Indiana University from 1884 to 1891. Starr was also a strong supporter of eugenics, and his published views expressed a fear of "race-degeneration" and asserted that cattle and human beings are "governed by the same laws of selection". He was an antimilitarist since he believed that war killed off the best members of the gene pool, and he initially opposed American involvement in World War I. Early life and career Jordan was born in Gainesville, New York, and grew up on a farm in upstate New York. His parents made the unorthodox decision to educate him at a local girls' high school. His middle name, Starr, does not appear in early census records, and was apparently self-selected; he had begun using ... [...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 United K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry David Thoreau
Henry David Thoreau (July 12, 1817May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading Transcendentalism, transcendentalist, he is best known for his book ''Walden'', a reflection upon simple living in natural surroundings, and his essay "Civil Disobedience (Thoreau), Civil Disobedience" (originally published as "Resistance to Civil Government"), an argument for disobedience to an unjust state. Thoreau's books, articles, essays, journals, and poetry amount to more than 20 volumes. Among his lasting contributions are his nature writing, writings on natural history and philosophy, in which he anticipated the methods and findings of ecology and environmental history, two sources of modern-day environmentalism. His literary language, literary style interweaves close observation of nature, personal experience, pointed rhetoric, symbolic meanings, and historical lore, while displaying a poetic sensibility, philosophical Asceticism, austerity, and attent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Of America
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saffron Shiner
The saffron shiner (''Notropis rubricroceus'') is a North American species of ray-finned fish in the genus ''Notropis''. It is found in cold, clear rocky streams and creeks in the Tennessee River drainage.Etnier, David A. and Wayne C. Starnes. 1993. ''The Fishes of Tennessee''. University of Tennessee Press. Knoxville, Tennessee. Characteristics are a relatively deep body, dorsal fin origin above back half of pelvic fin base, medium-sized eye, narrow rounded snout, sub-terminal mouth, elongate spot at base of tail fin, dark side stripe on back half of body, olive back, silver sides, white belly, fins pale except for black mark on tail fin, and breeding males will be bright red with blue stripe on the side.Robert Jay Goldstein, Rodney W. Harper, Richard Edwards: ''American Aquarium Fishes''. Texas A&M University Press 2000, , p. 112 ()3e The adults grow to between in length and mature to reproductive status in one to two years. When spawning the females release approximately 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandhills Chub
The Sandhills chub (''Semotilus lumbee'') is a species of freshwater fish in the family Cyprinidae of order Cypriniformes. There are 4 species of Semotilus, 2 of which occur in South Carolina (Creek Chub and Sandhills Chub). This fish is found only in North Carolina and South Carolina. The Sandhills chub is predominately found in the Carolina Sandhills and some areas of Cape Fear, Pee Dee and Santee Santee may refer to: People * Santee Dakota, a subgroup of the Dakota people, of the U.S. Great Plains * Santee (South Carolina), a Native American people of South Carolina Places * Lake Santee, Indiana, a reservoir and census-designated place * ... river drainages. It is characterized by its robust body, large head and lack of a dark blotch or smudge on their dorsal fin which is present on the closely related Creek Chub. The Sandhills chub has fine scales, a pinkish body and can be up to 9.4 inches. Range and distribution The Sandhills Chub is mostly found in the headwaters of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conecuh River
The Conecuh River and Escambia River constitute a single river in Alabama and Florida in the United States. The Conecuh River rises near Union Springs in the state and flows in a general southwesterly direction into Florida near Century. The river's name changes from the Conecuh to the Escambia at the junction of Escambia Creek, downstream from the Florida-Alabama line. After this point, the Escambia River flows south to Escambia Bay, an arm of Pensacola Bay. The river is dredged in the lower course. See also * List of Alabama rivers * List of Florida rivers * South Atlantic-Gulf Water Resource Region South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz ... References External links `* Rivers of Florida Rivers of Alabama Bodies of water of Escambia County, Florida Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Bay
Mobile Bay ( ) is a shallow inlet of the Gulf of Mexico, lying within the state of Alabama in the United States. Its mouth is formed by the Fort Morgan Peninsula on the eastern side and Dauphin Island, a barrier island on the western side. The Mobile River and Tensaw River empty into the northern end of the bay, making it an estuary. Several smaller rivers also empty into the bay: Dog River, Deer River, and Fowl River on the western side of the bay, and Fish River on the eastern side. Mobile Bay is the fourth largest estuary in the United States with a discharge of of water per second. Annually, and often several times during the summer months, the fish and crustaceans will swarm the shallow coastline and shore of the bay. This event, appropriately named a jubilee, draws a large crowd because of the abundance of fresh, easily caught seafood. Mobile Bay is in area. It is long by a maximum width of . The deepest areas of the bay are located within the shipping channel, someti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatry
In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and do not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee River
The Tennessee River is the largest tributary of the Ohio River. It is approximately long and is located in the southeastern United States in the Tennessee Valley. The river was once popularly known as the Cherokee River, among other names, as the Cherokee people had their homelands along its banks, especially in what are now East Tennessee and northern Alabama. Additionally, its tributary, the Little Tennessee River, flows into it from Western North Carolina and northeastern Georgia, where the river also was bordered by numerous Cherokee towns. Its current name is derived from the Cherokee town, ''Tanasi'', which was located on the Tennessee side of the Appalachian Mountains. Course The Tennessee River is formed at the confluence of the Holston and French Broad rivers in present-day Knoxville, Tennessee. From Knoxville, it flows southwest through East Tennessee into Chattanooga before crossing into Alabama. It travels through the Huntsville and Decatur area before rea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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