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Stygiomedusa
''Stygiomedusa gigantea'', commonly known as the giant phantom jelly is a part of the monotypic genus of deep sea jellyfish, ''Stygiomedusa''. This is in the Ulmaridae family. With only around 110 sightings in 110 years, it is a jellyfish that is rarely seen, but believed to be widespread throughout the world, with the exception of the Arctic Ocean. The Monterey Bay Aquarium Research Institute's remotely operated underwater vehicles have only sighted the jelly 27 times in 27 years. A study conducted by the Journal of the Marine Biological Association of the United Kingdom, focusing on four ''Stygiomedusa gigantea'' present in the Gulf of Mexico, revealed information regarding the wider distribution of this species. ''S. gigantea'' is thought to be one of the largest invertebrate predators in the ecosystem. It is commonly found in the ocean's midnight zone, reaching depths as deep as . Appearance ''S. gigantea'' has an umbrella-shaped bell that can grow up to .The bell's pliant tis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jellyfish
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are anchored to the seabed by stalks rather than being mobile. The bell can pulsate to provide propulsion for highly efficient animal locomotion, locomotion. The tentacles are armed with Cnidocyte, stinging cells and may be used to capture prey and defend against predators. Jellyfish have a complex Biological life cycle, life cycle; the medusa is normally the sexual phase, which produces planula larvae that disperse widely and enter a sedentary polyp (zoology), polyp phase before reaching sexual maturity. Jellyfish are found all over the world, from surface waters to the deep sea. Scyphozoans (the "true jellyfish") are exclusively marine habitats, marine, but some hydrozoans with a simila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmaridae
The Ulmaridae are a family of jellyfish. Genera Formerly, the genus '' Phacellophora'' was also included in this family, but is now placed in the family Phacellophoridae.Straehler-Pohl, I., C. L. Widmer, and A. C. Morandini (2011). ''Characterizations of juvenile stages of some semaeostome Scyphozoa (Cnidaria), with recognition of a new family (Phacellophoridae).'' Zootaxa 2741: 1-37 *''Aurelia'' (includes the moon jelly) *'' Aurosa'' *'' Deepstaria'' *'' Diplulmaris'' *'' Discomedusa'' *'' Floresca'' *'' Parumbrosa'' *'' Poralia'' *'' Stellamedusa'' *'' Sthenonia'' *'' Stygiomedusa (the giant phantom jelly)'' *''Tiburonia ''Tiburonia'' is a genus of jellyfish in the family Ulmaridae. It was reported in 2003, following the discovery of its only species yet identified, ''Tiburonia granrojo''. It was discovered by a crew from MBARI led by George Matsumoto. Pieces of ...'' *'' Ulmaris'' References Semaeostomeae Cnidarian families {{Scyphozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalassobathia Pelagica
''Thalassobathia pelagica'' is a species of fish in the family Bythitidae (viviparous brotulas). It is sometimes referred to by the common name pelagic brotula. Description ''Thalassobathia pelagica'' has a maximum length of . It has 72–79 dorsal soft rays, 58–65 anal soft rays and 22–29 pectoral soft rays. It has 7 branchiostegal rays and its head and body are compressed. Habitat ''Thalassobathia pelagica'' is bathypelagic, living at depths of in the Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe .... Two specimens have been collected between Iceland and Ireland, and one from the Gulf of Guinea. It has also been reported from Greenland and Iceland. A specimen from the Bering Sea has uncertain identification as this species. Behaviour ''Thalassobathia pelag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophidiiform
Ophidiiformes is an order of ray-finned fish that includes the cusk-eels (family Ophidiidae), pearlfishes (family Carapidae), viviparous brotulas (family Bythitidae), and others. Members of this order have small heads and long slender bodies. They have either smooth scales or no scales, a long dorsal fin and an anal fin that typically runs into the caudal fin. They mostly come from the tropics and subtropics, and live in both freshwater and marine habitats, including abyssal depths. They have adopted a range of feeding methods and lifestyles, including parasitism. The majority are egg-laying, but some are viviparous. Distribution This order includes a variety of deep-sea species, including the deepest known, ''Abyssobrotula galatheae'', found at in the Puerto Rico Trench. Many other species, however, live in shallow water, especially near coral reefs, while a few inhabit freshwater. Most species live in tropical or subtropical habitats, but some species are known from as far nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cnidarians Of The Pacific Ocean
Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. Cnidarians mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single orifice and body cavity that are used for digestion and respiration. Many cnidarian species produce colonies that are single organisms composed of medusa-like or polyp-like zooids, or both (hence they are trimorphic). Cnidarians' activities are coordinated by a decentralized nerve net and simple receptors. Several free-swimming species of Cubozoa and S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scyphozoan Genera
The Scyphozoa are an exclusively marine class of the phylum Cnidaria, referred to as the true jellyfish (or "true jellies"). The class name Scyphozoa comes from the Greek word ''skyphos'' (), denoting a kind of drinking cup and alluding to the cup shape of the organism. Scyphozoans have existed from the earliest Cambrian to the present. Biology Most species of Scyphozoa have two life-history phases, including the planktonic medusa or polyp form, which is most evident in the warm summer months, and an inconspicuous, but longer-lived, bottom-dwelling polyp, which seasonally gives rise to new medusae. Most of the large, often colorful, and conspicuous jellyfish found in coastal waters throughout the world are Scyphozoa. They typically range from in diameter, but the largest species, ''Cyanea capillata'' can reach across. Scyphomedusae are found throughout the world's oceans, from the surface to great depths; no Scyphozoa occur in freshwater (or on land). As medusae, they eat a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Biodiversity Information System
The Ocean Biodiversity Information System (OBIS), formerly Ocean Biogeographic Information System, is a web-based access point to information about the distribution and abundance of living species in the ocean. It was developed as the information management component of the ten year Census of Marine Life (CoML) (2001-2010), but is not limited to CoML-derived data, and aims to provide an integrated view of all marine biodiversity data that may be made available to it on an open access basis by respective data custodians. According to its web site as at July 2018, OBIS "is a global open-access data and information clearing-house on marine biodiversity for science, conservation and sustainable development." 8 specific objectives are listed in the OBIS site, of which the leading item is to "Provide heworld's largest scientific knowledge base on the diversity, distribution and abundance of all marine organisms in an integrated and standardized format". History and current status Initia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discovery Channel
Discovery Channel (known as The Discovery Channel from 1985 to 1995, and often referred to as simply Discovery) is an American cable channel owned by Warner Bros. Discovery, a publicly traded company run by CEO David Zaslav. , Discovery Channel was the third most widely distributed subscription channel in the United States, behind now-sibling channel TBS and The Weather Channel; it is available in 409 million households worldwide, through its U.S. flagship channel and its various owned or licensed television channels internationally. It initially provided documentary television programming focused primarily on popular science, technology, and history, but by the 2010s had expanded into reality television and pseudo-scientific entertainment. , Discovery Channel is available to approximately 88,589,000 pay television households in the United States. History John Hendricks founded the channel and its parent company, Cable Educational Network Inc., in 1982. Several investo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mashable
Mashable is a digital media platform, news website and entertainment company founded by Pete Cashmore in 2005. History Mashable was founded by Pete Cashmore while living in Aberdeen, Scotland, in July 2005. Early iterations of the site were a simple WordPress blog, with Cashmore as sole author. Fame came relatively quickly, with ''Time'' magazine noting Mashable as one of the 25 best blogs of 2009. As of November 2015, it had over 6,000,000 Twitter followers and over 3,200,000 fans on Facebook. In June 2016, it acquired YouTube channel CineFix from Whalerock Industries. In December 2017, Ziff Davis bought Mashable for $50 million, a price described by ''Recode'' as a "fire sale" price. Mashable had not been meeting its advertising targets, accumulating $4.2 million in losses in the quarter ending September 2017. After the sale, Mashable laid off 50 staffers, but preserved top management. Under Ziff Davis, Mashable has grown and expanded to many countries in multiple continents, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planula
A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species and also in some species of Ctenophores. Some groups of Nemerteans also produce larvae that are very similar to the planula, which are called planuliform larva. Development The planula forms either from the fertilized egg of a medusa, as is the case in scyphozoans and some hydrozoans, or from a polyp, as in the case of anthozoans. Depending on the species, the planula either metamorphoses directly into a free-swimming, miniature version of the mobile adult form, or navigates through the water until it reaches a hard substrate (many may prefer specific substrates) where it anchors and grows into a polyp. The miniature-adult types include many open-ocean scyphozoans. The attaching types include all anthozoans with a planula stage, many coastal scyphozoans, and some hydrozoans. Feeding and locomotion The planulae of the subphylum Medusozoa have no mouth, and no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invagination
Invagination is the process of a surface folding in on itself to form a cavity, pouch or tube. In developmental biology, invagination is a mechanism that takes place during gastrulation. This mechanism or cell movement happens mostly in the vegetal pole. Invagination consists of the folding of an area of the exterior sheet of cells towards the inside of the blastula. In each organism, the complexity will be different depending on the number of cells. Invagination can be referenced as one of the steps of the establishment of the body plan. The term, originally used in embryology, has been adopted in other disciplines as well. There is more than one type of movement for invagination. Two common types are axial and orthogonal. The difference between the production of the tube formed in the cytoskeleton and extracellular matrix. Axial can be formed at a single point along the axis of a surface. Orthogonal is linear and trough. Biology * Invagination is the morphogenetic processes by wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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