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Panaqolus Maccus
''Panaqolus maccus'', commonly called the clown panaque, clown plecostomus, clown pleco, or ringlet pleco, is a dwarf loricariid. By numbering systems such as the L-number system, this fish may also be known as L104, L162, or LDA22. Distribution and habitat This fish is endemic to Venezuela where it is found in the tannic Apuré and Caroní River basins. Their natural environment is driftwood tangles near riverbanks. Description This species is a small loricariid. It reaches a length of SL. This species has a striped pattern. However, this colouration may change with age. There are specimens with straight bars, but there are also specimens with a broken or wavy pattern. The wavy pattern form is found in the actual Orinoco and its tributaries in Bolivar State, Venezuela, while the "normal" patterned ''P. maccus'' comes from further north and west ( Cojedes, Portuguesa, Guarico, and Apure States) in the Llanos where the drainages run into the Apure River. In the aquarium '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott Allen Schaefer
Scott Allen Schaefer (born 1958) is an American ichthyologist working at the American Museum of Natural History as the Dean of Science for Collections, Exhibitions, and the Public Understanding of Science; he serves as the Curator-in-Charge, in the Department of Ichthyology, within the Division of Vertebrate Zoology. In addition, he is the Director of the Sackler Institute for Comparative Genomics and a professor, Richard Gilder Graduate School. He is an Adjunct Senior Research Scientist, with The Earth Institute Center for Environmental Sustainability (EICES), The Earth Institute Adjunct Research Scientist, with the Dept. of Ichthyology Columbia Climate School. Education Schaefer attended Ohio State University, where he received a Bachelor of Science degree in 1980. He attended University of South Carolina, where he received his Masters.in Science in 1982. He received his Ph. D. from the University of Chicago, in 1986 Career Schaefer studies the systematics, biogeography, and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portuguesa (state)
) , anthem = '' Himno del Estado Portuguesa'' , image_map = Portuguesa in Venezuela.svg , map_alt = , map_caption = Location within Venezuela , pushpin_map = , pushpin_map_alt = , pushpin_mapsize = , pushpin_map_caption = , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = Venezuela , subdivision_type1 = , subdivision_name1 = , subdivision_type2 = , subdivision_name2 = , established_title = Created , established_date = 1909 , founder = , named_for = , seat_type = Capital , seat = Guanare , government_footnotes = , government_type = , leader_party = , governing_body= Legislative Council , leader_title = Governor , leader_name = Rafael Calles (2017) , ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Scott Allen Schaefer
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] |
Endemic Fauna Of Venezuela
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Venezuela
Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, 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 vertebrate, 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 placodermi, external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrini
Ancistrini is a tribe of catfishes of the family Loricariidae. Most are restricted to tropical and subtropical South America, but there are also several genus (''Ancistrus'', '' Chaetostoma'', ''Hemiancistrus'' and ''Lasiancistrus'') in southern Central America. Taxonomy Ancistrini have previously been considered a loricariid subfamily. However, the subfamily Hypostominae would be paraphyletic if Ancistrinae continued to be recognized. To continue recognizing the monophyly of this group while returning it to Hypostominae, Hypostominae was broken into several tribes. Pterygoplichthyini is sister to the tribe Ancistrini, which shares the derived presence of an evertible patch of plates on the cheek. Description Most Ancistrini species (except for some ''Pseudancistrus'' and ''Spectracanthicus'') can be separated from all other loricariids except the Pterygoplichthyini by the presence of evertible cheek plates with hypertrophied odontode Odontodes, or dermal teeth, are hard structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wiley (publisher)
John Wiley & Sons, Inc., commonly known as Wiley (), is an American multinational publishing company founded in 1807 that focuses on academic publishing and instructional materials. The company produces books, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, technical, and engineering subject areas, abandoning its literary interests. Wiley's son John (born in Flatbush, New York, October 4, 1808; died in East Orange, New Jer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishkeeping
Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond. There is also a piscicultural fishkeeping industry, serving as a branch of agriculture. Origins of fishkeeping Fish have been raised as food in pools and ponds for thousands of years. Brightly colored or tame specimens of fish in these pools have sometimes been valued as pets rather than food. Many cultures, ancient and modern, have kept fish for both functional and decorative purposes. Ancient Sumerians kept wild-caught fish in ponds, before preparing them for meals. Depictions of the sacred fish of Oxyrhynchus kept in captivity in rectangular temple pools have been found in ancient Egyptian art. Similarly, Asia has experienced a long history of stocking rice paddies with freshwater fish suitable for eating, including various types of catfish and cyprinid. Selective breeding of carp into today's popular and completely domesticated koi and fancy goldfish b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanos
The Llanos (Spanish ''Los Llanos'', "The Plains"; ) is a vast tropical grassland plain situated to the east of the Andes in Colombia and Venezuela, in northwestern South America. It is an ecoregion of the tropical and subtropical grasslands, savannas, and shrublands biome. Geography The Llanos occupy a lowland that extends mostly east and west. The Llanos are bounded on the west and northwest by the Andes, and on the north by the Venezuelan Coastal Range. The Guiana Highlands are to the southeast, and the Negro-Branco moist forests are to the southwest. To the east the Orinoco wetlands and Orinoco Delta swamp forests occupy the Orinoco Delta. The Llanos' main river is the Orinoco, which runs from west to east through the ecoregion and forms part of the border between Colombia and Venezuela. The Orinoco is the major river system of Venezuela. Climate The ecoregion has a tropical savanna climate that grades into a tropical monsoon climate in the Colombian Llanos. Rainfall is hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apure State
Apure State ( es, Estado Apure, ) is one of the 23 states of Venezuela. Its territory formed part of the provinces of Mérida, Maracaibo, and Barinas, in accordance with successive territorial ordinations pronounced by the colonial authorities. In 1824 the Department of Apure was created, under jurisdiction of Barinas, which laid the foundations for the current entity. In 1856 it separated from Barinas and for the first time Apure appeared as an independent province, which in 1864 acquired the status of state. In 1881, however, a new territorial division combined Apure and Guayana to form a single state named ''Bolívar.'' In 1899 it reestablished its autonomy and finally, by means of the Constitution of 1909, gained its current borders. The territory was famous for heron plumes, which adorned European courts. At the same time, it was the scene of armed encounters that marked the evolution of the War for Independence, as well as numerous battles during the civil war. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cojedes (state)
, anthem = '' Himno del Estado Cojedes'' , image_map = Cojedes in Venezuela.svg , map_alt = , map_caption = Location within Venezuela , pushpin_map = , pushpin_map_alt = , pushpin_mapsize = , pushpin_map_caption = , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = Venezuela , subdivision_type1 = , subdivision_name1 = , subdivision_type2 = , subdivision_name2 = , established_title = Created , established_date = 1864 , founder = , named_for = , seat_type = Capital , seat = San Carlos , government_footnotes = , government_type = , leader_party = , governing_body= Legislative Council , leader_title = Governor , leader_name = Margaud Godoy (2017–2021 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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