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Stachyptilum
''Stachyptilum'' is a genus in the family Stachyptilidae. The genus contains bioluminescent Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some b ... species. References Octocorallia genera Bioluminescent cnidarians Stachyptilidae {{Octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stachyptilidae
Stachyptilidae is a family of corals Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secre ... belonging to the order Pennatulacea. Genera: * '' Gilibelemnon'' Lopez Gonzalez & Williams, 2002 * '' Stachyptilum'' Kölliker, 1880 References Pennatulacea Cnidarian families {{Octocorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Von Kölliker
Albert von Kölliker (born Rudolf Albert Kölliker'';'' 6 July 18172 November 1905) was a Swiss anatomist, physiologist, and histologist. Biography Albert Kölliker was born in Zurich, Switzerland. His early education was carried on in Zurich, and he entered the university there in 1836. After two years, however, he moved to the University of Bonn, and later to that of Berlin, becoming a pupil of noted physiologists Johannes Peter Müller and of Friedrich Gustav Jakob Henle. He graduated in philosophy at Zurich in 1841, and in medicine at Heidelberg in 1842. The first academic post which he held was that of prosector of anatomy under Henle, but his tenure of this office was briefin 1844 he returned to Zurich University to occupy a chair as professor extraordinary of physiology and comparative anatomy. His stay here was also brief; in 1847 the University of Würzburg, attracted by his rising fame, offered him the post of professor of physiology and of microscopical and compara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Balss
Heinrich Balss (3 June 1886 – 17 September 1957) was a German zoologist, specialising in Crustacea, especially decapods. He was chief conservator at the ' ("State Zoology Collection") at the University of Munich, and wrote the sections on decapods and stomatopods in Heinrich Georg Bronn's seminal work ' ("Classes and Orders of the Animal Kingdom"). A number of taxa are named in his honour: *''Balssia'' Kemp, 1922 *''Podocallichirus balssi'' ( Monod, 1935) *''Detocarcinus balssi'' (Monod, 1956) *''Trizocheles balssi'' (Stebbing Stebbing is a small village in the Uttlesford district of northern Essex, England. The village is situated north of the ancient Roman road Stane Street. It is from the nearest railway station (), and from nearest airport (London Stansted). Th ..., 1914) *''Rhynchocinetes balssi'' Gordon, 1936 *''Ctenocheles balssi'' Kishinouye, 1926 *''Lebbeus balssi'' Hayashi, 1992 *''Galathea balssi'' S. Miyake & K. Baba, 1964 References Further reading * 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Théophile Rudolphe Studer
Théophile Rudolphe Studer (27 November 1845 – 12 February 1922) was a Swiss ornithologist and marine biologist. From 1871 to 1922 he was a curator of zoological collections at the museum of natural history in Berne. In 1874–1876 he took part in a scientific journey aboard the German frigate "S.M.S. Gazelle". Two years after his return he was a professor of zoology and comparative anatomy at the school of veterinary medicine in Berne. Published works With Victor Fatio (1838-1906), he published the first three installments of ''Catalogue des oiseaux de la Suisse'' (Catalogue of birds of Switzerland). Other writings by Studer include: * ''Übersicht ūber die Ophiuriden welche während der Reise S.M.S. Gazelle um die Erde 1874-1876 gesammelt Wurden'', 1882 - Overview of Ophiuroidea, collected by the S.M.S. Gazelle voyage of 1874–1876. * ''Verzeichniss der Crustaceen welche während der Reise S.M.S. Gazelle an der Westküste von Afrika, Ascension und dem Cap der guten Hoffnun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescent Bacteria
Bioluminescent bacteria are light-producing bacteria that are predominantly present in sea water, marine sediments, the surface of decomposing fish and in the gut of marine animals. While not as common, bacterial bioluminescence is also found in terrestrial and freshwater bacteria. These bacteria may be free living (such as ''Vibrio harveyi'') or in symbiosis with animals such as the Hawaiian Bobtail squid ('' Aliivibrio fischeri'') or terrestrial nematodes ('' Photorhabdus luminescens''). The host organisms provide these bacteria a safe home and sufficient nutrition. In exchange, the hosts use the light produced by the bacteria for camouflage, prey and/or mate attraction. Bioluminescent bacteria have evolved symbiotic relationships with other organisms in which both participants benefit close to equally. Another possible reason bacteria use luminescence reaction is for quorum sensing, an ability to regulate gene expression in response to bacterial cell density. History Records ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octocorallia Genera
Octocorallia (also known as Alcyonaria) is a class of Anthozoa comprising around 3,000 species of water-based organisms formed of colonial polyps with 8-fold symmetry. It includes the blue coral, soft corals, sea pens, and gorgonians (sea fans and sea whips) within three orders: Alcyonacea, Helioporacea, and Pennatulacea. These organisms have an internal skeleton secreted by mesoglea and polyps with eight tentacles and eight mesentaries. As with all Cnidarians these organisms have a complex life cycle including a motile phase when they are considered plankton and later characteristic sessile phase. Octocorals have existed at least since the Ordovician period, as shown by Maurits Lindström's findings in the 1970s, however recent work has shown a possible Cambrian origin. Biology Octocorals resemble the stony corals in general appearance and in the size of their polyps, but lack the distinctive stony skeleton. Also unlike the stony corals, each polyp has only eight tentacles, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescent Cnidarians
Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, and terrestrial arthropods such as fireflies. In some animals, the light is bacteriogenic, produced by symbiotic bacteria such as those from the genus '' Vibrio''; in others, it is autogenic, produced by the animals themselves. In a general sense, the principal chemical reaction in bioluminescence involves a light-emitting molecule and an enzyme, generally called luciferin and luciferase, respectively. Because these are generic names, luciferins and luciferases are often distinguished by the species or group, e.g. firefly luciferin. In all characterized cases, the enzyme catalyzes the oxidation of the luciferin. In some species, the luciferase requires other cofactors, such as calcium or magnesium ions, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
