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Allotoca
''Allotoca'' is a genus of splitfins that are endemic to west-central and southwest Mexico, where restricted to the Lerna– Chapala– Grande de Santiago, Ameca and Balsas river basins, as well as various endorheic lake basins in Michoacán and Jalisco (Pátzcuaro, Zirahuén, Cuitzeo, Magdalena and others). All ''Allotoca'' species are seriously threatened. The largest ''Allotoca'' is up to long, but most species only reach between half and three-quarter that size. Unusually, ''A. catarinae'' is probably the result of an ancient translocation by humans in the pre-Columbian era (similar ancient human-assisted translocations are known from certain birds in Mexico). The translocation happened at least 700 years ago and most likely about 1900 years ago. The ancestral species then evolved into ''A. catarinae'' at its new isolated location in the Cupatitzio River, a tributary of the Balsas River. Species FishBase recognizes eight species in this genus, but their taxonomy is comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allotoca Catarinae
''Allotoca'' is a genus of splitfins that are endemic to west-central and southwest Mexico, where restricted to the Lerna– Chapala– Grande de Santiago, Ameca and Balsas river basins, as well as various endorheic lake basins in Michoacán and Jalisco (Pátzcuaro, Zirahuén, Cuitzeo, Magdalena and others). All ''Allotoca'' species are seriously threatened. The largest ''Allotoca'' is up to long, but most species only reach between half and three-quarter that size. Unusually, ''A. catarinae'' is probably the result of an ancient translocation by humans in the pre-Columbian era (similar ancient human-assisted translocations are known from certain birds in Mexico). The translocation happened at least 700 years ago and most likely about 1900 years ago. The ancestral species then evolved into ''A. catarinae'' at its new isolated location in the Cupatitzio River, a tributary of the Balsas River. Species FishBase recognizes eight species in this genus, but their taxonomy is comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allotoca Dugesii
''Allotoca'' is a genus of splitfins that are endemic to west-central and southwest Mexico, where restricted to the Lerna– Chapala– Grande de Santiago, Ameca and Balsas river basins, as well as various endorheic lake basins in Michoacán and Jalisco (Pátzcuaro, Zirahuén, Cuitzeo, Magdalena and others). All ''Allotoca'' species are seriously threatened. The largest ''Allotoca'' is up to long, but most species only reach between half and three-quarter that size. Unusually, ''A. catarinae'' is probably the result of an ancient translocation by humans in the pre-Columbian era (similar ancient human-assisted translocations are known from certain birds in Mexico). The translocation happened at least 700 years ago and most likely about 1900 years ago. The ancestral species then evolved into ''A. catarinae'' at its new isolated location in the Cupatitzio River, a tributary of the Balsas River. Species FishBase recognizes eight species in this genus, but their taxonomy is comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allotoca Diazi
''Allotoca'' is a genus of splitfins that are endemic to west-central and southwest Mexico, where restricted to the Lerna– Chapala– Grande de Santiago, Ameca and Balsas river basins, as well as various endorheic lake basins in Michoacán and Jalisco (Pátzcuaro, Zirahuén, Cuitzeo, Magdalena and others). All ''Allotoca'' species are seriously threatened. The largest ''Allotoca'' is up to long, but most species only reach between half and three-quarter that size. Unusually, ''A. catarinae'' is probably the result of an ancient translocation by humans in the pre-Columbian era (similar ancient human-assisted translocations are known from certain birds in Mexico). The translocation happened at least 700 years ago and most likely about 1900 years ago. The ancestral species then evolved into ''A. catarinae'' at its new isolated location in the Cupatitzio River, a tributary of the Balsas River. Species FishBase recognizes eight species in this genus, but their taxonomy is comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allotoca Goslinei
''Allotoca goslinei'', commonly known as the banded allotoca or ''tiro rayado'' in Spanish, is a species of fish endemic to the Mexican state of Jalisco. Its specific name honors American ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ... William A. Gosline for his research on cyprinodontoid fish. References {{Taxonbar, from=Q5491746 Cyprinodontiformes Fish described in 1987 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Splitfin
Goodeidae is a family of teleost fish endemic to Mexico and some areas of the United States. Many species are known as splitfins. This family contains about 50 species within 18 genera. The family is named after ichthyologist George Brown Goode (1851-1896). Distribution The family is divided into two subfamilies, the Goodeinae and the Empetrichthyinae. The Goodeinae are endemic to shallow freshwater habitats in Mexico, particularly along the Mesa Central area (especially the Lerma River basin, smaller rivers directly south of it and inland to around the Valley of Mexico region), with some species found in brackish fringes at the Pacific coast, and north to central Durango, central Sinaloa and north San Luis Potosí. There are about 45 species of Goodeinae in 16 genera (some list 2 additional genera). The Empetrichthyinae are found in the southwestern Great Basin in Nevada, the United States, and contains 4 species in 2 genera. Physical information The name "splitfin" co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Zirahuén
Lake Zirahuén is a small endorheic lake in the municipality of Santa Clara del Cobre in Michoacán, Mexico. It is a deep mountain lake with a sandy bottom that is partially covered with mud. It covers an area of and has a volume of . At times Lake Zirahuén has been part of an open and continuous hydrological system together with Lake Cuitzeo and Lake Pátzcuaro, draining into the Lerma River. Today it is a closed basin like Lakes Cuitzeo and Pátzcuaro, although ecologists consider it a sub-basin of the Lerma- Chapala basin. The Zirahuén allotica ''(Allotoca meeki)'', a Goodeid fish, is endemic 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 elsew ... to Lake Zirahuén."''Allotoca meeki'', Zirahuen allotica (Alvarez, 1959)", ''Fishbase''. Accessed November 15, 2009 References {{DEF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ameca River
The Ameca River ( es, Río Ameca) is a river of some in length in western Mexico. It rises in the Bosque de la Primavera in Jalisco, 23 km to the west of state capital Guadalajara; flows through the city of Ameca; and then forms the boundary between Jalisco and Nayarit on its way to the Pacific Ocean, where it drains into the Bahía de Banderas at Puerto Vallarta, Jalisco. Its main tributaries are the Ahuacatlán and Amatlán de Cañas. The Ameca has been dammed just north of the town of La Vega, Jalisco, forming a reservoir, the Lago La Vega which extends northward to the town of Teuchitlán. Fish Several species of fish are only known from the Ameca River basin: the butterfly splitfin, Tequila splitfin, finescale splitfin, banded allotoca, golden skiffia, Amatlan chub, Ameca chub and Ameca shiner. All these are highly threatened. The Tequila splitfin, finescale splitfin and golden skiffia are likely extinct in the wild A species that is extinct in the wild ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Pátzcuaro
Lake Pátzcuaro (Spanish: ''Lago de Pátzcuaro'') is a lake in the municipality of Pátzcuaro, Michoacán, Mexico. Lake Pátzcuaro lies in an endorheic basin, which does not drain to the sea. A watershed area of 929 square kilometres drains into the lake, of which 126.4 are the water body. The Lake Pátzcuaro watershed extends 50 kilometres east–west and 33 kilometres from north to south. Lake Pátzcuaro lies at an elevation of 1,920 metres, and is the center of the basin and is surrounded by volcanic mountains with very steep slopes. It has an average depth of 5 metres and a maximum of 11. Its volume is approximately 580 million cubic metres."Descripción de la cuenca", ''Recuperación Ambiental del Lago de Pátzcuaro". Accessed October 18, 2009 The Lake Pátzcuaro basin is of volcanic origin. At times it has been part of an open and continuous hydrological system formed by Lake Cuitzeo, Pátzcuaro and Lake Zirahuén, which drained into the Lerma River. Today, like lakes Cuit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupatitzio River
The Cupatitzio River is a river of Michoacán state in Southwestern Mexico. Course Its main headwaters are in Barranca del Cupatitzio National Park, in Uruapan, Michoacán. Near its source are two waterfalls, the larger ''Tzararacua'' and the smaller ''Tzararacuita'' (little Tzararacua). After flowing some distance in the highlands ("Altiplano") of western-central Michoacan state, the river takes a course mainly towards the south. It drains into the Balsas River which, in turn, empties into the Pacific Ocean. See also *List of rivers of Mexico This is a list of rivers of Mexico, listed from north to south. There are 246 rivers on this list. Alternate names for rivers are given in parentheses. Rivers flowing into the Gulf of Mexico * Río Bravo, the name of the Rio Grande in Mexico ** S ... ReferencesUtexas.edu: Atlas of Mexico — Map of the rivers and river basins of Mexico(1975). *The Prentice Hall American World Atlas, 1984. *Rand McNally, The New International Atlas, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.Marine Fellow: Rainer Froese ''Pew Environment Group''. Over time it has "evolved into a dynamic and versatile ecological tool" that is widely cited in scholarly publications. FishBase provides comprehensive species data, including information on , geographical distribution, and |
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] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
