|
Clavelina Minuta ) and '' Cyclosalpa'' ( ''Clavelina minuta'' is a species of sea squirt found in Japan, that has been demonstrated to produce an intrinsic (non-secreted) green bioluminescence of 535 nm. Notably, this bioluminescence is not thought to be due to bacterial symbionts. ''Clavelina minuta'' is currently the only sea squirt (Ascidiacea) known to produce light, however old reports also report luminescence in '' Botryllus'' and ''Ciona''. Amongst other tunicates, the unrelated ''Pyrosoma'' and Appendicularia (e.g. genus '' Oikopleura''), which produce an intrinsic blue light, are bioluminescent, and genera ''Doliolum'' (Doliolidae Doliolidae is a family of tunicates in the order Doliolida. Members of the family are pelagic and often found far away from coastlines. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascidia
''Ascidia'' is a genus of tunicate A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata (). It is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time ca ...s in the family Ascidiidae. Selected species * ''Ascidia achimotae'' Millar, 1953 * ''Ascidia adamanensis'' Oka, 1915 * ''Ascidia ahodori'' Oka, 1927 * ''Ascidia alisea'' Monniot & Monniot, 2006 * ''Ascidia alpha'' Tokioka, 1953 * ''Ascidia alterna'' Monniot & Monniot, 1991 * ''Ascidia archaia'' Sluiter, 1890 * ''Ascidia arenosa'' Hartmeyer, 1898 * ''Ascidia armata'' Hartmeyer, 1906 * ''Ascidia aspera'' Brunetti, 2007 * ''Ascidia austera'' Sluiter, 1904 * ''Ascidia aximensis'' Millar, 1953 * ''Ascidia azurea'' Monniot & Monniot, 1996 * ''Ascidia bathybia'' Hartmeyer, 1922 * ''Ascidia bifissa'' Sluiter, 1895 * ''Ascidia bocatorensis'' Bonnet & Rocha, 2011 * ''Ascidia caguayensis'' Millar & Goodbod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascidiacea
Ascidiacea, commonly known as the ascidians, tunicates (in part), and sea squirts (in part), is a polyphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of a polysaccharide. Ascidians are found all over the world, usually in shallow water with salinities over 2.5%. While members of the Thaliacea and Larvacea (Appendicularia) swim freely like plankton, sea squirts are sessile animals after their larval phase: they then remain firmly attached to their substratum, such as rocks and shells. There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals (each individual is called a zooid) forming colonies up to several meters in diameter. Sea squirts feed by taking in water through a tube, the oral siphon. The water enters the mouth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botryllus
''Botryllus'' is a genus of colonial ascidian tunicates in the family Styelidae. Species Species in this genus include: * '' Botryllus arenaceus'' Monniot, 1988 * '' Botryllus aster'' Monniot, 1991 * '' Botryllus closionis'' Monniot, Monniot, Griffiths & Schleyer, 2001 * '' Botryllus compositus'' Tokioka, 1967 * '' Botryllus delicatus'' Okuyama & Saito, 2001 * '' Botryllus eilatensis'' Shenkar & Monniot, 2006 * ''Botryllus elegans'' (Quoy & Gaimard, 1834) * '' Botryllus firmus'' Monniot & Monniot, 1996 * '' Botryllus gregalis'' (Sluiter, 1898) * '' Botryllus horridus'' Saito & Okuyama, 2003 * '' Botryllus japonicus'' (Oka, 1931) * '' Botryllus leptus'' Savigny, 1816 * '' Botryllus maeandrius'' (Sluiter, 1898) * '' Botryllus magnus'' Ritter, 1901 * '' Botryllus mortenseni'' Millar, 1964 * '' Botryllus ovalis'' Monniot, 1988 * '' Botryllus perspicuum'' Herdman, 1886 * '' Botryllus planus'' (Van Name, 1902) * '' Botryllus primigenus'' Oka, 1928 * '' Botryllus promiscuus'' Okuyama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciona
''Ciona'' is a genus of tunicate, sea squirts in the family Cionidae. The body of ''Ciona'' is bag-like and covered by a tunica (biology), tunic, which is a secretion of the Squamous epithelium, epidermal cells. The body is attached at a permanent base located at the posterior part, and the opposite bears two openings, the Cheek, buccal (Mouth, oral) and atrial (cloacal) siphon (mollusc), siphons. The water is drawn into the ascidian through the buccal siphon and leaves the wikt:atrium, atrium through the atrial siphon. Species Species in this genus include: * ''Ciona antarctica'' * ''Ciona edwardsi'' * ''Ciona fascicularis'' * ''Ciona gelatinosa'' * ''Ciona hoshinoi'' * ''Ciona imperfecta'' * ''Ciona intermedia'' * ''Ciona intestinalis'' * ''Ciona longissima'' * ''Ciona mollis'' * ''Ciona pomponiae'' * ''Ciona robusta'' * ''Ciona roulei'' * ''Ciona savignyi'' * ''Ciona sheikoi'' Genome projects As of 2008, the genomes of ''Ciona intestinalis''P. Dehal et al.: ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrosoma
Pyrosomes, genus ''Pyrosoma'', are free-floating colonial tunicates that usually live in the upper layers of the open ocean in warm seas, although some may be found at greater depths. Pyrosomes are cylindrical or cone-shaped colonies up to long, made up of hundreds to thousands of individuals, known as zooids. colony (biology), Colonies range in size from less than one centimeter to several metres in length. They are commonly called "sea pickles". Other nicknames include "sea worms", "sea squirts", "fire bodies", and "cockroaches of the sea". Each zooid is a few millimetres in size, but is embedded in a common gelatinous tunic that joins all of the individuals. Each zooid opens both to the inside and outside of the "tube", drawing in ocean water from the outside to its internal filtering mesh called the branchial basket, extracting the microscopic plant cells on which it feeds, and then expelling the filtered water to the inside of the cylinder of the colony. The colony is bumpy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larvacea
Larvaceans, class Appendicularia, are solitary, free-swimming tunicates found throughout the world's oceans. Like most tunicates, larvaceans are filter feeders. Unlike most other tunicates, they live in the pelagic zone, specifically in the photic zone, or sometimes deeper. They are transparent planktonic animals, generally less than in body length, excluding the tail. Anatomy The adult larvaceans resemble the tadpole-like larvae of most tunicates. Like a common tunicate larva, the adult Appendicularia have a discrete trunk and tail. Larvaceans produce a "house" made of mucopolysaccharides and cellulose. In most species, the house surrounds the animal like a bubble. Even for species in which the house does not completely surround the body, such as ''Fritillaria'', the house is always present and attached to at least one surface. These houses are discarded and replaced regularly as the animal grows in size and its filters become clogged; in ''Oikopleura'', a house is kept for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oikopleura
''Oikopleura'' is a genus of Tunicata (sea-squirts) in the class Appendicularia. It forms a mucus house every four hours at 20 degrees Celsius. This house has a coarse mesh to keep out big particles, and a fine mesh that collects the small particles, down to the nanoplankton that includes (pelagic) bacteria. Abandoned mucus houses sink to the deep, collecting organic particles during their descent. They make an important contribution to marine snow, since ''Oikopleura'' is abundant and is a very active filterer, using powerful strokes of its tail. Its abundance is less obvious from preserved samples (that are usually analyzed) because the gelatinous body disappears in the preservation process while leaving hardly any trace. Species of ''Oikopleura ''have the smallest genomes in the animal kingdom, only about 75 Mb. ''Oikopleura'' contains bioluminescent species. About half of ''Oikopleura'' species are bioluminescent. Taxonomy * ''Oikopleura (Coecaria)'' , 1933 ** ''Oikopleu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doliolum
''Doliolum'' is a genus of tunicates, the members of which move via jet propulsion. A detailed description can be found at . Species The World Register of Marine Species lists the following species: World Register of Marine Species. Retrieved 2011-11-17. *'' Doliolum denticulatum'' Quoy & Gaimard, 1834 *'' Doliolum intermedium'' Neumann, 1906 *'' Doliolum nationalis
''Doliolum'' is a genus of tunicat ...
[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doliolidae
Doliolidae is a family of tunicates in the order Doliolida. Members of the family are pelagic and often found far away from coastlines.Doliolidae World Register of Marine Species. Retrieved 2011-11-17. Members of the family are transparent, gelatinous, barrel-shaped or cylindrical marine organisms. They are mostly small and inconspicuous. They have which move water through the nets which they use to trap the on which they feed. This is in contrast to their close ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclosalpa
''Cyclosalpa'' is a genus of salps, marine tunicates in the class Thaliacea The Thaliacea comprise a class of marine animals within the subphylum Tunicata. Unlike their benthic relatives the ascidians, thaliaceans are free-floating (pelagic) for their entire lifespan. The group includes species with complex life cycle .... References ''Cyclosalpa''at WoRMS Thaliacea Tunicate genera {{tunicata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
