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Pherallodiscus
''Pherallodiscus'' is a genus of clingfishes native to the central eastern Pacific Ocean along the coast of Mexico. Based on genetic studies the genus should be merged into '' Gobiesox''. Species There are currently two recognized species in this genus: * '' Pherallodiscus funebris'' ( C. H. Gilbert, 1890) (Northern fraildisc clingfish) * '' Pherallodiscus varius'' Briggs, 1955 (Southern fraildisc clingfish) References Gobiesocidae {{gobiesociformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pherallodiscus Funebris
''Pherallodiscus'' is a genus of clingfishes native to the central eastern Pacific Ocean along the coast of Mexico. Based on genetic studies the genus should be merged into '' Gobiesox''. Species There are currently two recognized species in this genus: * '' Pherallodiscus funebris'' ( C. H. Gilbert, 1890) (Northern fraildisc clingfish) * '' Pherallodiscus varius'' Briggs, 1955 (Southern fraildisc clingfish) References Gobiesocidae {{gobiesociformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pherallodiscus Varius
''Pherallodiscus'' is a genus of clingfishes native to the central eastern Pacific Ocean along the coast of Mexico. Based on genetic studies the genus should be merged into '' Gobiesox''. Species There are currently two recognized species in this genus: * ''Pherallodiscus funebris ''Pherallodiscus'' is a genus of clingfishes native to the central eastern Pacific Ocean along the coast of Mexico. Based on genetic studies the genus should be merged into '' Gobiesox''. Species There are currently two recognized species i ...'' ( C. H. Gilbert, 1890) (Northern fraildisc clingfish) * '' Pherallodiscus varius'' Briggs, 1955 (Southern fraildisc clingfish) References Gobiesocidae {{gobiesociformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobiesox
''Gobiesox'' is a genus of clingfishes found in the Americas, including offshore islands. Most species inhabit coastal marine and brackish waters, but ''G. lanceolatus'' is a deep-water species found at a depth of around , and seven species (''G. cephalus'', ''G. fluviatilis'', ''G. fulvus'', ''G. juniperoserrai'', ''G. juradoensis'', ''G. mexicanus'' and ''G. potamius'') are from fast-flowing rivers and streams. These seven are the only known freshwater clingfish. The genus includes both widespread and common species, and more restricted species that are virtually unknown. Three freshwater species that are endemic to Mexico (''G. fluviatilis'', ''G. juniperoserrai'' and ''G. mexicanus'') are considered threatened by Mexican authorities, and three species that are endemic to small offshore islands (''G aethus'' and ''G. canidens'' of the Revillagigedo Islands, and ''G. woodsi'' of Cocos Island) are considered vulnerable by the IUCN. ''Gobiesox'' are small fish, mostly less than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Carmon Briggs
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Charles Henry Gilbert
Charles Henry Gilbert (December 5, 1859 in Rockford, Illinois – April 20, 1928 in Palo Alto, California) was a pioneer ichthyologist and Fisheries science, fishery biologist of particular significance to natural history of the western United States. He collected and studied fishes from Central America north to Alaska and described many new species. Later he became an expert on Pacific salmon and was a noted conservation movement, conservationist of the Pacific Northwest. He is considered by many as the intellectual founder of American fisheries biology. He was one of the 22 "pioneer professors" (founding faculty) of Stanford University. Early life and education Born in Rockford, Illinois, Gilbert spent his early years in Indianapolis, Indiana, where he came under the influence of his high school teacher, David Starr Jordan (1851‒1931). When Jordan became Professor of Natural History at Butler University in Indianapolis, Gilbert followed and received his B.A. degree in 187 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clingfish
Clingfishes are fishes of the family Gobiesocidae, the only family in the order Gobiesociformes. These fairly small to very small fishes are widespread in tropical and temperate regions, mostly near the coast, but a few species in deeper seas or fresh water. Most species shelter in shallow reefs or seagrass beds, clinging to rocks, algae and seagrass leaves with their sucking disc, a structure on their chest. They are generally too small to be of interest to fisheries, although the relatively large '' Sicyases sanguineus'' regularly is caught as a food fish, and some of the other species occasionally appear in the marine aquarium trade. Distribution and habitat Clingfishes are primarily found near the shore in the Atlantic, Indian and Pacific Oceans, including marginal seas such as the Mediterranean, Gulf of Mexico, Caribbean and Gulf of California. The greatest species richness is in tropical and warm temperate regions, but the range of a few extends into colder waters, lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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