|
Etheostoma Osburni
''Etheostoma osburni'', the candy darter or finescale saddled darter, is a species of fish in the family Percidae, a member of the group known as darters. This species is endemic to the eastern United States where it is known only from the Kanawha River system in the states of Virginia and West Virginia. Description ''Etheostoma osburni'' can reach a length of , though most only reach about . This species has a lifespan of up to three years. It spawns in April and May.NatureServe. 2017''Etheostoma osburni''.NatureServe Explorer V.7.1 Accessed 8 August 2017. It is an invertivore, feeding on aquatic insect larvae and water mites. Habitat and distribution ''Etheostoma osburni'' lives in a system of rivers, streams, and creeks in the central Appalachian Mountains. It can be found in rapid riffles in rocky riverbed habitat. It occurs in cold, cool, and warm waters, as long as the substrate is rocky and the water is clear. It tolerates fast currents. Conservation ''Etheostoma osburni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Leavitt Hubbs
Carl Leavitt Hubbs (October 19, 1894 – June 30, 1979) was an American ichthyologist. Biography Youth He was born in Williams, Arizona. He was the son of Charles Leavitt and Elizabeth (née Goss) Hubbs. His father had a wide variety of jobs (farmer, iron mine owner, newspaper owner). The family moved several times before settling in San Diego where he got his first taste of natural history. After his parents divorced in 1907, he lived with his mother, who opened a private school in Redondo Beach, California. His maternal grandmother Jane Goble Goss, one of the first female doctors, showed Hubbs how to harvest shellfish and other sea creatures. One of his teachers, impressed by Hubbs's abilities in science, recommended that he study chemistry at the University of Berkeley. The family moved once more to Los Angeles. In Los Angeles, George Bliss Culver, one of the many volunteers of David Starr Jordan, encouraged Hubbs to abandon his study of birds and instead to study fish, par ... [...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] |
Taxa Named By Carl Leavitt Hubbs
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etheostoma
''Etheostoma'' is a genus of small freshwater fish in the family Percidae native to North America. Most are restricted to the United States, but species are also found in Canada and Mexico. They are commonly known as darters, although the term "darter" is shared by several other genera. Many can produce alarm pheromones that serve to warn nearby fish in case of an attack.Smith, R.J.F. (1992): Alarm signals in fishes. ''Reviews in Fish Biology and Fisheries, 2 (1): 33-63.'' Species The 157 recognized species in this genus are: * ''Etheostoma acuticeps'' R. M. Bailey, 1959 (sharphead darter) * ''Etheostoma akatulo'' Layman & Mayden, 2009 (bluemask darter) * '' Etheostoma artesiae'' ( O. P. Hay, 1881) (redspot darter) * '' Etheostoma asprigene'' ( S. A. Forbes, 1878) (mud darter) * '' Etheostoma atripinne'' ( D. S. Jordan, 1877) (Cumberland snubnose darter) * '' Etheostoma australe'' D. S. Jordan, 1889 (Conchos darter) * '' Etheostoma autumnale'' Mayden, 2010 (autumn darter) * '' E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The United States
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 fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etheostoma Variatum
''Etheostoma variatum'', the variegate darter, is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is native to the eastern United States where it occurs primarily in the Ohio River basin; it is present in the states of Ohio, New York, Pennsylvania, Indiana, West Virginia and Kentucky with a small population in Virginia. It is a large darter, growing to long, orange-red with black vertical barring on its body, and horizontal barring on its front dorsal fin. Its typical habitat is swift-flowing riffles with rubble, boulder and gravel. No major threats have been identified for this fish and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern". Biology Description ''Etheostoma variatum'' is large in size for its family; it has an average length of between . It has a wide variety of markings. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raymond Carroll Osburn
Raymond Carroll Osburn (January 4, 1872 – August 6, 1955) was an American zoologist. Biography Osburn was born on January 4, 1872, in Newark, Ohio. In 1898, he received his bachelor's degree from the Ohio State University, and continued there, earning his master's two years later. He received his Ph.D. in 1906 from Columbia University. After he got the master's degree, he got a position as instructor of biology and embryology at Starling Medical College. From 1899 to 1902 he was a professor of biology at Fargo College. From 1902 to 1906, he taught at New York High School of Commerce. From 1907 to 1910 he was assistant professor of zoology, following by professor of biology for five years at Barnard College. For two years he served under the same title at Connecticut College for Women, and was a professor of zoology and entomology department chairman at Ohio State University. One of his PhD students was Mary Dora Rogick who became a specialist in the taxonomy and ecology of bry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoologist
Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the Animal, animal kingdom, including the anatomy, structure, embryology, evolution, Biological classification, classification, Ethology, habits, and distribution of all animals, both living and extinction, extinct, and how they interact with their ecosystems. The term is derived from Ancient Greek , ('animal'), and , ('knowledge', 'study'). Although humans have always been interested in the natural history of the animals they saw around them, and made use of this knowledge to domesticate certain species, the formal study of zoology can be said to have originated with Aristotle. He viewed animals as living organisms, studied their structure and development, and considered their adaptations to their surroundings and the function of their parts. The Greek physician Galen studied human anatomy and was one of the greatest surgeons of the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet or species epithet) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the specific the proper term for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pocahontas County, West Virginia
Pocahontas County is a county located in the U.S. state of West Virginia. As of the 2020 census, the population was 7,869. Its county seat is Marlinton. The county was established in 1821. It is named after the daughter of the Powhatan chief of the Native Americans in the United States from Jamestown, Virginia. She married an English settler and their children became ancestors of many of the First Families of Virginia. Pocahontas County is the home to the Green Bank Observatory and is part of the National Radio Quiet Zone. History When Andrew Lewis, early American pioneer, surveyor, and soldier from Virginia, came to survey one of the land grants for the Greenbrier Company in 1751, he found Jacob Marlin and Stephen Sewell living where Marlinton later developed. They had come from Frederick, Maryland, in 1749 and are considered to be the first European settlers in this region of Virginia. They built their original cabin where Marlin Run met Knapp's Creek. Lewis had found Sewe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenbrier River
The Greenbrier River is a tributary of the New River, long,McNeel, William P. "Greenbrier River." ''The West Virginia Encyclopedia''. Ken Sullivan, editor. Charleston, WV: West Virginia Humanities Council. 2006. . in southeastern West Virginia, in the United States. Via the New, Kanawha and Ohio rivers, it is part of the watershed of the Mississippi River, draining an area of . It is one of the longest rivers in West Virginia. Course The Greenbrier is formed at Durbin in northern Pocahontas County by the confluence of the East Fork Greenbrier River and the West Fork Greenbrier River, both of which are short streams rising at elevations exceeding and flowing for their entire lengths in northern Pocahontas County. DeLorme (1997). ''West Virginia Atlas & Gazetteer''. Yarmouth, Maine: DeLorme. . From Durbin the Greenbrier flows generally south-southwest through Pocahontas, Greenbrier and Summers Counties, past several communities including Cass, Marlinton, Hillsboro, Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributary
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean. The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. PhysicalGeography.net, Michael Pidwirny & S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
