|
Vargula
''Vargula'' is a genus in the Cypridinidae. The genus contains bioluminescent species. ''Vargula hilgendorfii ''Vargula hilgendorfii'', sometimes called the sea-firefly and one of three bioluminescent species known in Japan as umi-hotaru (海蛍), is a species of ostracod crustacean. It is the only member of genus '' Vargula'' to inhabit Japanese wate ...'' (formerly ''Cypridina hilgendorfii''), native to Japan, is likely the best-studied Vargula species. Some species currently within Vargula (e.g. '' Vargula tsujii'') may be split into their own genus. References {{Taxonbar, from1=Q4574764 Ostracod genera Bioluminescent ostracods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vargula Hilgendorfii
''Vargula hilgendorfii'', sometimes called the sea-firefly and one of three bioluminescent species known in Japan as umi-hotaru (海蛍), is a species of ostracod crustacean. It is the only member of genus '' Vargula'' to inhabit Japanese waters; all other members of its genus inhabit the Gulf of Mexico, the Caribbean Sea, and waters off the coast of California. ''V. hilgendorfii'' was formerly more common, but its numbers have fallen significantly. Description ''V. hilgendorfii'' is a small animal, only 3 millimetres long. It is nocturnal and lives in the sand at the bottom of shallow water. At night, it feeds actively. Bioluminescence ''V. hilgendorfii'' is known for its bioluminescence. It produces a blue-coloured light by a specialized chemical reaction of the substrate luciferin and the enzyme luciferase. The luciferase enzyme consists of a 555-amino acid-long peptide with a molecular mass of 61627 u, while the luciferine vargulin has only a mass of 405.5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vargula Species
''Vargula'' is a genus in the Cypridinidae. The genus contains bioluminescent species. ''Vargula hilgendorfii ''Vargula hilgendorfii'', sometimes called the sea-firefly and one of three bioluminescent species known in Japan as umi-hotaru (海蛍), is a species of ostracod crustacean. It is the only member of genus '' Vargula'' to inhabit Japanese wate ...'' (formerly ''Cypridina hilgendorfii''), native to Japan, is likely the best-studied Vargula species. Some species currently within Vargula (e.g. '' Vargula tsujii'') may be split into their own genus. References {{Taxonbar, from1=Q4574764 Ostracod genera Bioluminescent ostracods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vargula Tsujii
''Vargula tsujii'' is a bioluminescent cypridinid ostracod found in southern California. It feeds on dead and decaying fish and invertebrates. Vargula tsujii is an important prey item of the plainfin midshipman fish (''Porichthys notatus''), as it is the source of luciferin Luciferin (from the Latin ''lucifer'', "light-bearer") is a generic term for the light-emitting compound found in organisms that generate bioluminescence. Luciferins typically undergo an enzyme-catalyzed reaction with molecular oxygen. The result ... for the bioluminescence seen in the fish. References Bioluminescent ostracods {{DISPLAYTITLE:''Vargula tsujii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescence
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, and somet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostracod Genera
Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 70,000 species (only 13,000 of which are extant) have been identified, grouped into several orders. They are small crustaceans, typically around in size, but varying from in the case of ''Gigantocypris''. Their bodies are flattened from side to side and protected by a bivalve-like, chitinous or calcareous valve or "shell". The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped together based on gross morphology. While early work indicated the group may not be monophyletic and early molecular phylogeny was ambiguous on this front, recent combined analyses of molecular and morphological data found support for monophyly in analyses with broadest taxon sampling. Ecologically, marine ostracods can be part of the zooplankton or (most commonly) are part of the benthos, living on or inside the upper layer of the sea floor. While Myodocop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypridinidae
Cypridinidae is a family of ostracods, containing the following genera: *'' Amphisiphonostra'' Poulsen, 1962 *'' Azygocypridina'' Sylvester-Bradley, 1950 *'' Bathyvargula'' Kornicker, 1968 *'' Codonocera'' Brady, 1902 *'' Cypridina'' Milne-Edwards, 1840 *'' Cypridinodes'' Brady, 1902 *'' Doloria'' Skogsberg, 1920 *'' Enewton'' Cohen & Morin, 2010 *''Gigantocypris The giant ostracod (''Gigantocypris'') or the giant seed shrimp is a genus of ostracod crustaceans in family Cypridinidae, and among the most well-known members of the class Ostracoda (together with '' Vargula hilgendorfii''). Its members are ...'' Skogsberg, 1920 *'' Hadacypridina'' Poulsen, 1962 *'' Isocypridina'' Kornicker, 1975 *'' Jimmorinia'' Cohen & Kornicker ''in'' Cohen, Kornicker & Iliffe, 2000 *'' Kornickeria'' Cohen & Morin, 1993 *'' Lowrya'' Parker, 1998 *'' Macrocypridina'' Skogsberg, 1920 *'' Maristella'' Reda et al., 2019 *'' Melavargula'' Poulsen, 1962 *'' Metavargula'' Kornicker, 1970 *'' Monopi ... [...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] |
