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Guinardia
''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * '' Guinardia delicatula'' * '' Guinardia flaccida'' * '' Guinardia pungens'' * '' Guinardia striata'' References Diatoms Diatom genera {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinardia Delicatula
''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * '' Guinardia delicatula'' * '' Guinardia flaccida'' * '' Guinardia pungens'' * '' Guinardia striata'' References Diatoms Diatom genera {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinardia Flaccida
''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * ''Guinardia delicatula ''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * '' Guinardia delicatula'' * '' Guinardia flaccida'' * ...'' * '' Guinardia flaccida'' * '' Guinardia pungens'' * '' Guinardia striata'' References Diatoms Diatom genera {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinardia Pungens
''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * ''Guinardia delicatula'' * ''Guinardia flaccida ''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * ''Guinardia delicatula ''Guinardia'' is a genus of ...'' * '' Guinardia pungens'' * '' Guinardia striata'' References Diatoms Diatom genera {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinardia Striata
''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * ''Guinardia delicatula'' * ''Guinardia flaccida'' * ''Guinardia pungens ''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * ''Guinardia delicatula'' * ''Guinardia flaccida ''G ...'' * '' Guinardia striata'' References Diatoms Diatom genera {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatom
A diatom ( Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Depression, which was once made up of a system of fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizosoleniaceae
Rhizosoleniaceae is a family of diatoms belonging to the order Rhizosoleniales. Genera: * '' Calyptrella'' Castillo, 1996 * '' Dactyliosolen'' A.F.Castracane, 1886 * ''Guinardia ''Guinardia'' is a genus of diatoms belonging to the family Rhizosoleniaceae. The genus was first described by H. Peragallo in 1892. The genus has cosmopolitan distribution. Species: * '' Guinardia delicatula'' * '' Guinardia flaccida'' * ...'' H.Peragallo, 1892 * '' Henseniella'' F.Schütt ex G.B.De Toni, 1894 * '' Neocalyprella'' Hernàndez-Becerril * '' Neocalyptrella'' Castillo, 1997 * '' Proboscia'' B.G.Sundstrom, 1986 * '' Pseudosolenia'' B.G.Sundstrom, 1986 * '' Rhizosolenia'' T.Brightwell, 1858 * '' Urosolenia'' F.E.Round & R.M.Crawford, 1990 References Diatoms Diatom families {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatoms
A diatom (New Latin, Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's Biomass (ecology), biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The Protist shell, shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Dep ... [...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 z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
