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Pseudoliparis Amblystomopsis
''Pseudoliparis amblystomopsis'', or the hadal snailfish, is a species of snailfish from the hadal zone of the Northwest Pacific Ocean, including the Kuril–Kamchatka and Japan Trenches. In October 2008, a team from British and Japanese institutes discovered a shoal of ''Pseudoliparis amblystomopsis'' at a depth of about in the Japan Trench. These were, at the time, the deepest living fish A fish (: fish or fishes) is an aquatic animal, aquatic, Anamniotes, anamniotic, gill-bearing vertebrate animal with swimming fish fin, fins and craniate, a hard skull, but lacking limb (anatomy), limbs with digit (anatomy), digits. Fish can ... ever recorded on film. The record was surpassed by a type of snailfish filmed at a depth of in December 2014, and extended in May 2017 when another snailfish was filmed at a depth of . This deepest-water so-called ethereal snailfish remains undescribed, but a close relative found only slightly shallower in the Mariana Trench was described a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatoly Petrovich Andriashev
Anatoly Petrovich Andriyashev (; 19 August 1910 – 4 January 2009) was a Soviet and Russian ichthyologist, marine biologist, and zoogeographist, notable for his studies of marine fauna of the Arctic and the Northern Pacific. Notable dates * 1933 - graduated from the Biology Department of Leningrad State University (specialty - ichthyology) * 1934 - took part in the Hydrobiological Expedition to the Sea of Japan of the Zoological Institute of the Russian Academy of Sciences * 1937 - defended his thesis on "Zoogeography and origin of the fish fauna of the Bering Sea and adjacent waters," which was published in 1939 as a book. * 1938 - 1939 - assistant, associate professor at Leningrad State University * 1939 - 1943 - Senior Researcher at the Sevastopol Biological Station, then - an employee of the Zoological Institute of the Russian Academy of Sciences * 1943-1946 - Scientific Secretary of the Zoological Institute of the Russian Academy of Sciences ** from 1946 - Deputy Director ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snailfish
The snailfishes or sea snails (not to be confused with invertebrate sea snails), are a family of marine ray-finned fishes. These fishes make up the Liparidae, a family classified within the order Scorpaeniformes. Widely distributed from the Arctic to Antarctic Oceans, including the oceans in between, the snailfish family contains more than 30 genera and about 410 described species, but there are also many undescribed species. Snailfish are found at depths ranging from shallow coastal waters to more than , including in seven ocean trenches. Taxonomy The snailfish family, Liparidae, was first proposed by the American biologist Theodore Gill in 1861. The 5th edition of ''Fishes of the World'' classifies this family within superfamily Cyclopteroidea, part of the suborder Cottoidei of the order Scorpaeniformes. Other authorities do not recognise this superfamily and classify the two families within it, Cyclopteridae and Liparidae, within the infraorder Cottales alongside the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadal Zone
The hadal zone, also known as the hadopelagic zone, is the deep sea, deepest region of the ocean, lying within oceanic trenches. The hadal zone ranges from around below sea level, and exists in long, narrow, topographic V-shaped depressions. The cumulative area occupied by the 46 individual hadal marine habitat, habitats worldwide is less than 0.25% of the world's seabed, seafloor, yet trenches account for over 40% of the ocean's depth range. Most hadal habitat is found in the Pacific Ocean, the deepest of the conventional oceanic divisions. Terminology and definition Historically, the hadal zone was not recognized as distinct from the abyssal zone, although the deepest sections were sometimes called "ultra-abyssal". During the early 1950s, the Danish ''Galathea expeditions#Second expedition, Galathea II'' and Soviet ''RV Vityaz (1939), Vityaz'' expeditions separately discovered a distinct shift in the life at depths of not recognized by the broad definition of the abyssal zon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), the Pacific Ocean is the largest division of the World Ocean and the hydrosphere and covers approximately 46% of Earth's water surface and about 32% of the planet's total surface area, larger than its entire land area ().Pacific Ocean . ''Encyclopædia Britannica, Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the Land and water hemispheres, water hemisphere and the Western Hemisphere, as well as the Pole of inaccessi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuril–Kamchatka Trench
The Kuril–Kamchatka Trench or Kuril Trench (, ''Kurilo-Kamchatskii Zhyolob'') is an oceanic trench in the northwest Pacific Ocean. It lies off the southeast coast of Kamchatka and parallels the Kuril Island chain to meet the Japan Trench east of Hokkaido. It extends from a triple junction with the Ulakhan Fault and the Aleutian Trench near the Commander Islands, Russia, in the northeast, to the intersection with the Japan Trench in the southwest. The trench formed as a result of the subduction zone, which formed in the late Cretaceous, that created the Kuril island arc as well as the Kamchatka volcanic arc. The Pacific plate is being subducted beneath the Okhotsk plate along the trench, resulting in intense volcanism. The maximum depth of the trench is reported in peer-reviewed academic papers as 9,600 meters. Tectonics At the Kuril–Kamchatka Trench, the Pacific plate is subducting beneath the Okhotsk plate, a minor tectonic plate formerly considered to be part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Trench
The Japan Trench is an oceanic trench part of the Pacific Ring of Fire off northeast Japan. It extends from the Kuril Islands to the northern end of the Izu Islands, and is at its deepest. It links the Kuril–Kamchatka Trench to the north and the Izu–Ogasawara Trench to its south with a length of . This trench is created as the oceanic Pacific plate subducts beneath the continental Okhotsk microplate (a microplate formerly a part of the North American plate). The subduction process causes bending of the down going plate, creating a deep trench. Continuing movement on the subduction zone associated with the Japan Trench is one of the main causes of tsunamis and earthquakes in northern Japan, including the megathrust Tōhoku earthquake and resulting tsunami that occurred on 11 March 2011. The rate of subduction associated with the Japan Trench has been recorded at about /yr. Tectonic history During the late Neogene period (23.03–2.58 million years ago), the Japan Tren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
A fish (: fish or fishes) is an aquatic animal, aquatic, Anamniotes, anamniotic, gill-bearing vertebrate animal with swimming fish fin, fins and craniate, a hard skull, but lacking limb (anatomy), limbs with digit (anatomy), digits. Fish can be grouped into the more basal (phylogenetics), basal jawless fish and the more common jawed fish, the latter including all extant taxon, living cartilaginous fish, cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single Class (biology), class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are ectotherm, cold-blooded, their body temperature varying with the surrounding water, though some large nekton, active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communication in aquatic animals#Acoustic, communicate acoustically with each other, such as during courtship displays. The stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC News
BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs in the UK and around the world. The department is the world's largest broadcast news organisation and generates about 120 hours of radio and television output each day, as well as online news coverage. The service has over 5,500 journalists working across its output including in 50 foreign news bureaus where more than 250 foreign correspondents are stationed. Deborah Turness has been the CEO of news and current affairs since September 2022. In 2019, it was reported in an Ofcom report that the BBC spent £136m on news during the period April 2018 to March 2019. BBC News' domestic, global and online news divisions are housed within the largest live newsroom in Europe, in Broadcasting House in central London. Parliamentary coverage is produced and broadcast from studios in London. Through BBC English Regions, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CBC News
CBC News is the division of the Canadian Broadcasting Corporation responsible for the news gathering and production of news programs on the corporation's English-language operations, namely CBC Television, CBC Radio, CBC News Network, and CBC.ca. Founded in 1941 by the public broadcaster, CBC News is the largest news broadcaster in Canada and has local, regional, and national broadcasts and stations. It frequently collaborates with its organizationally separate French-language counterpart, Radio-Canada Info. History The first CBC newscast was a bilingual radio report on November 2, 1936. The CBC News Service was inaugurated during World War II on January 1, 1941, when Dan McArthur, chief news editor, had Wells Ritchie prepare for the announcer Charles Jennings a national report at 8:00 pm. Previously, CBC relied on The Canadian Press to provide it with wire copy for its news bulletins. Readers who followed Jennings were Lorne Greene, Frank Herbert and Earl Cameron. '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Undescribed Species
In taxonomy, an undescribed taxon is a taxon (for example, a species) that has been discovered, but not yet formally described and named. The various Nomenclature Codes specify the requirements for a new taxon to be validly described and named. Until such a description has been published, the taxon has no formal or official name, although a temporary, informal name is often used. A published scientific name may not fulfil the requirements of the Codes for various reasons. For example, if the taxon was not adequately described, its name is called a ''nomen nudum''. It is possible for a taxon to be "undescribed" for an extensive period of time, even if unofficial descriptions are published. An undescribed species may be referred to with the genus name, followed by "sp.", but this abbreviation is also used to label specimens or images that are too incomplete to be identified at the species level. In some cases, there is more than one undescribed species in a genus. In this case, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoliparis Swirei
''Pseudoliparis swirei'', the Mariana snailfish or Mariana hadal snailfish, is a species of snailfish found at hadal depths in the Mariana Trench in the western Pacific Ocean. It is known from a depth range of , including a capture at , which is possibly the record for a fish caught on the seafloor. Various anatomical, physiological, molecular and genetic adaptions help this species survive in such depths. This pale, tadpole-like fish reaches up to in standard length and in weight. It is apparently the top predator along certain stretches of the Mariana Trench, feeding on tiny crustaceans in a deep-water habitat with few larger predators. ''Pseudoliparis swirei'' are abundant in their deep-sea habitat and lay relatively large eggs that are almost in diameter. Discovery The first specimens of this species were caught in 2014 during an expedition of the research vessel ''Falkor''. To catch the fish, deep-water traps designed to minimize the damage to the caught fish during the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
