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Eisenia (alga)
''Eisenia'' is a brown alga genus in the family ''Lessoniaceae''. The genus is named for California Academy of Sciences curator, Gustav Eisen. The genus was circumscribed by John Erhard Areschoug in Bot. Not. (1876) on page 68 in 1876 ''Eisenia bicyclis'' () is a species of kelp best known for its use in Japanese cuisine. Species * ''Eisenia arborea'' * ''Eisenia bicyclis , sea oak is a species of kelp, of the brown algae, best known for its use in Japanese cuisine. Description ''Eisenia bicyclis'' is indigenous to temperate Pacific Ocean waters centered near Japan, although it is deliberately cultured elsewhe ...'' * '' Eisenia cokeri'' * '' Eisenia desmarestioides'' * '' Eisenia galapagensis'' * '' Eisenia gracilis'' * '' Eisenia masonii'' References External links * Lessoniaceae Laminariales genera {{Phaeophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisenia Bicyclis
, sea oak is a species of kelp, of the brown algae, best known for its use in Japanese cuisine. Description ''Eisenia bicyclis'' is indigenous to temperate Pacific Ocean waters centered near Japan, although it is deliberately cultured elsewhere, including South Korea. Arame , Food to Good Health, 2010 retrieved 8 February 2013 It grows and reproduces seasonally. Two flattened oval fronds rise from a stiff woody stipe which can be up to about tall. The fronds are shed and new ones formed annually. The plant appears both branched and feathered. It may be harvested by divers manually or mechanically, and the dried form is available year-round. Cuisine It is one of many species of |
Johan Erhard Areschoug
Johan Erhard Areschoug (Johannes Erhard Areschoug, Philos. Doctor, Botanices et Oeconomiae) (16 September 1811 – 7 May 1887) was a Swedish botanist who was a native of Göteborg. He was a member of the Arreskow family (in Swedish). His first name is sometimes recorded as "John". He studied natural sciences at the University of Lund, where in 1838 he earned his doctorate in philosophy. In 1859 he succeeded Elias Magnus Fries (1794-1878) as professor of botany at the University of Uppsala, a position he maintained until 1876. In 1851, he was elected a member of the Royal Swedish Academy of Sciences. Areschoug performed extensive field studies of Scandinavian cryptogams, being remembered for his work in the field of phycology. The red algae Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1876 In Science
The year 1876 in science and technology involved some significant events, listed below. Astronomy * December 7 – First recorded observation of the Great White Spot on Saturn, made by American astronomer Asaph Hall, who uses it to calculate the planet's rotation period. Biology * Robert Koch demonstrates that ''Bacillus anthracis'' is the source of anthrax, the first bacterium conclusively shown to cause disease. * Koller's sickle in Bird, avian gastrulation is first described by August Rauber. * Francis Galton invents the silent dog whistle. * Meiosis was discovered and described for the first time in sea urchin eggs by the German biologist Oscar Hertwig. Chemistry * Josiah Willard Gibbs publishes ''On the Equilibrium of Heterogeneous Substances'', a compilation of his work on thermodynamics and physical chemistry which lays out the concept of Thermodynamic free energy, free energy to explain the physical basis of chemical equilibria. Exploration * May 24 – End of the Chall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lessoniaceae
Lessoniaceae are a family of kelp. Species of this family have transition zone with intercalary meristem subdivided so that there are a number of secondary stipes in addition to the primary stipe. Genera and species *''Ecklonia'' **''Ecklonia arborea'' **''Ecklonia cava'' **''Ecklonia kurome'' **''Ecklonia maxima'' **'' Ecklonia radiata'' **''Ecklonia stolonifera'' *'' Eckloniopsis'' **'' Eckloniopsis radicosa'' *''Egregia'' **''Egregia menziesii'' - feather boa *'' Eisenia'' **''Eisenia arborea'' - southern sea palm, sea oak **''Eisenia bicyclis'' - arame *'' Lessonia'' **''Lessonia adamsiae'' **''Lessonia brevifolia'' **'' Lessonia corrugata'' **''Lessonia flavicans'' **''Lessonia nigrescens'' **''Lessonia spicata'' **''Lessonia tholiformis'' **''Lessonia trabeculata'' **'' Lessonia vadosa'' **''Lessonia variegata Lessonia may refer to: * ''Lessonia'' (alga), a genus in the family Lessoniaceae * ''Lessonia'' (bird), a genus in the family Tyrannidae * ''Lessonia'', a synony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Academy Of Sciences
The California Academy of Sciences is a research institute and natural history museum in San Francisco, California, that is among the largest museums of natural history in the world, housing over 46 million specimens. The Academy began in 1853 as a learned society and still carries out a large amount of original research. The institution is located at the Golden Gate Park in San Francisco. Completely rebuilt in 2008, the Academy's primary building in Golden Gate Park covers . In early 2020, before the COVID-19 pandemic, the California Academy of Sciences had around 500 employees and an annual revenue of about $33 million. Governance The California Academy of Sciences, California's oldest operating museum and research institution for the natural sciences, is governed by a forty-one member Board of Trustees who are nominated and chosen by the California Academy of Sciences Fellows. The Academy Fellows are, in turn, " minated by their colleagues and appointed by the Board of Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Eisen
Gustavus Augustus Eisen (August 2, 1847 − October 29, 1940) was a Swedish-American polymath. He became a member of California Academy of Sciences in 1874 and a Life Member in 1883. In 1893, he became the 'Curator of Archaeology, Ethnology, and Lower Animals' at the Academy. He later changed titles to 'Curator of Marine Invertebrates'. In 1938, he was appointed as an 'Honorary Member', which is considered the highest honor from the Academy. Biography Eisen was born in Stockholm, Sweden, on August 2, 1847. He attended school at Visby and later graduated from the University of Uppsala in 1873. He came to California that same year to participate in a biotic survey sponsored by the Swedish Academy of Sciences. He decided to make California his home and joined the California Academy of Sciences the following year. He was known to have diverse interests, including "art and art history, archeology and anthropology, agronomy and horticulture, history of science, geography and cartograp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogenetics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Erhard Areschoug
Johan Erhard Areschoug (Johannes Erhard Areschoug, Philos. Doctor, Botanices et Oeconomiae) (16 September 1811 – 7 May 1887) was a Swedish botanist who was a native of Göteborg. He was a member of the Arreskow family (in Swedish). His first name is sometimes recorded as "John". He studied natural sciences at the University of Lund, where in 1838 he earned his doctorate in philosophy. In 1859 he succeeded Elias Magnus Fries (1794-1878) as professor of botany at the University of Uppsala, a position he maintained until 1876. In 1851, he was elected a member of the Royal Swedish Academy of Sciences. Areschoug performed extensive field studies of Scandinavian cryptogams, being remembered for his work in the field of phycology. The red algae Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisenia Arborea
''Eisenia arborea'', or the southern sea palm (not to be confused with the sea palm), is a dominant species of kelp that is found on the western Pacific coast of North America, from Vancouver Island, Canada south to Mexico's Isla Magdalena and Baja California, as well as in Japan. They are commonly found from the midtidal areas stretching to the subtidal areas. It is an edible seaweed, a source of nutrients for grazing marine invertebrates and a source of alginic acid, a food thickener. Some of the algas have a hollow stipe above its holdfast with two branches terminating in multiple blades. Eisenia arborea is studied in order to predict environmental stress in oceans intertidal zones. Hollow stipes where present when the Eisenia arborea did not receive essential nutrients for its thalli development. Eisenia arborea with hollow stripes are believed to be evolved algae in order to increase their survival in harsh living conditions. They play a huge role in determining envir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
