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Amphilophus Zaliosus
''Amphilophus zaliosus'' is a species of cichlid that inhabits Lake Apoyo in Nicaragua. It is known in the aquarium trade as the arrow cichlid. It is an elongate species in the Midas cichlid species complex. The arrow cichlid shares its habitat with five other recently discovered species of this complex. Genetic evidence from Apoyo supports a hypothesis that the six known species of the lake evolved via sympatric speciation. Appearance The yellow background color, common among the ''Amphilophus'' cichlids of Nicaragua, is absent in the arrow cichlid. The background color is silver to greenish gray. Breeding specimens can be entirely black. Conservation The arrow cichlid is the only endemic Lake Apoyo cichlid that has been evaluated by the IUCN. It has been rated as Critically Endangered on the IUCN Red List. Among the small body of information regarding populations of the species of this group, four other species may have smaller populations and/or ranges than this fish in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George W
George Walker Bush (born July 6, 1946) is an American politician who served as the 43rd president of the United States from 2001 to 2009. A member of the Republican Party, Bush family, and son of the 41st president George H. W. Bush, he previously served as the 46th governor of Texas from 1995 to 2000. While in his twenties, Bush flew warplanes in the Texas Air National Guard. After graduating from Harvard Business School in 1975, he worked in the oil industry. In 1978, Bush unsuccessfully ran for the House of Representatives. He later co-owned the Texas Rangers of Major League Baseball before he was elected governor of Texas in 1994. As governor, Bush successfully sponsored legislation for tort reform, increased education funding, set higher standards for schools, and reformed the criminal justice system. He also helped make Texas the leading producer of wind powered electricity in the nation. In the 2000 presidential election, Bush defeated Democratic incumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphilophus Flaveolus
''Amphilophus'' is a genus of cichlid fishes from Central America, ranging from southern Mexico to Panama. The genus currently contains 23 species, including several that are well-known from the aquarium trade. However, studies led by Oldřich Říčan in 2008 and 2016 suggested that several species within ''Amphilophus'' should be moved to the genus '' Astatheros''. Species proposed to be moved to ''Astatheros'' in 2008 were ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. macracanthus'' (which would be the type species for ''Astatheros''), ''A. margaritifer'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus''. Further genetic studies led Říčan to put ''A. macracanthus'' in ''Astatheros'', but to put ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus'' within the genus ''Cribroheros''. Říčan's study suggests that the ''Astatheros'' specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Nicaragua
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] |
Fish Of Central 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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphilophus
''Amphilophus'' is a genus of cichlid fishes from Central America, ranging from southern Mexico to Panama. The genus currently contains 23 species, including several that are well-known from the aquarium trade. However, studies led by Oldřich Říčan in 2008 and 2016 suggested that several species within ''Amphilophus'' should be moved to the genus '' Astatheros''. Species proposed to be moved to ''Astatheros'' in 2008 were ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. macracanthus'' (which would be the type species for ''Astatheros''), ''A. margaritifer'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus''. Further genetic studies led Říčan to put ''A. macracanthus'' in ''Astatheros'', but to put ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus'' within the genus ''Cribroheros''. Říčan's study suggests that the ''Astatheros'' specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphilophus Chancho
''Amphilophus chancho'' is a large cichlid fish endemic to Lake Apoyo in Nicaragua.Stauffer JR, Jr., McCrary JK, & Black KE (2008)Three new species of cichlid fishes (Teleostei: Cichlidae) from Lake Apoyo, Nicaragua. PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON 121(1):117–129 The six ''Amphilophus'' species found in Lake Apoyo show morphological differences.Geiger MF, McCrary JK, & Stauffer JR, Jr. (2010): Description of two new species of the Midas cichlid complex (Teleostei:Cichlidae) from Lake Apoyo, Nicaragua; PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON 123(2):159–173 Multiple species of this group have been identified and verified by genomic and mitochondrial DNA evidence in the volcanic crater lake Apoyo and another Nicaraguan crater lake, Xiloá. The genetic evidence from Apoyo supports a hypothesis that the six known species of the lake evolved via sympatric speciation.Geiger MF, McCrary JK, Schliewen U (2010): Not a simple case – A first comprehen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid
Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this grouping. The closest living relative of cichlids is probably the convict blenny, and both families are classified in the 5th edition of ''Fishes of the World'' as the two families in the Cichliformes, part of the subseries Ovalentaria. This family is both large and diverse. At least 1,650 species have been scientifically described, making it one of the largest vertebrate families. New species are discovered annually, and many species remain undescribed. The actual number of species is therefore unknown, with estimates varying between 2,000 and 3,000. Many cichlids, particularly tilapia, are important food fishes, while others, such as the '' Cichla'' species, are valued game fish. The family also includes many popular freshwater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
