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Megamouth Shark
The megamouth shark (''Megachasma pelagios'') is a species of deepwater shark. Rarely seen by Human, humans, it measures around long and is the smallest of the three extant taxon, extant filter-feeding sharks alongside the much larger whale shark and basking shark. According to Sharkman's World Organization, a total of 296 specimens have been observed or caught since its discovery in 1976. Like the other two Planktivore, planktivorous sharks, it swims with its mouth wide open, filtering water for plankton and jellyfish. The diet of megamouth sharks mainly consists of zooplanktonic organisms like krill, jellyfish, shrimp Larva, larvae, Squat lobster, squat lobsters, and crab larvae. It is recognizable from its large head with rubbery Lip, lips. The megamouth is so unlike any other type of shark that it is usually considered to be the sole extant species in the family Megachasmidae, though some scientists have suggested it may belong in the family Cetorhinidae. Taxonomy and evol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toba Aquarium
is a public aquarium in Toba, Mie, Japan. The aquarium is described as a "quality aquarium", housing some 25,000 individuals representing 1,200 species in 12 distinct zones. It is accredited as a Registered Museum by the Museum Act (Japan), Museum Act from Ministry of Education, Culture, Sports, Science and Technology. In 2015, the number of visitors to the aquarium exceeded 60 million. History Toba Aquarium opened May 1955. It was founded by Haruaki Nakamura, now the honorary president. The first aquarium was a "handmade aquarium" with a 200 tsubo pond divided into four sections and stocked with penguins, sea lions, sea bream, and yellowtail, etc. The aquarium was marketed as having a guide.伊勢志摩国立公園指定50周年記念事業実行委員会 編（1997）：65ページ鳥羽市史編さん室（1991）：1312ページ。 In 1956, the aquarium became the Toba Aquarium Corporation, and on January 31, 1958, it was designated as a private museum under the Museum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megachasmidae
''Megachasma'' is a genus of mackerel sharks. It is usually considered to be the sole genus in the family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is the sole extant member. ''Megachasma'' is known from a single living species, '' Megachasma pelagios''. In addition to the living ''M. pelagios'', two extinct megamouth species – the Priabonian '' Megachasma alisonae'' and the Oligocene–Miocene '' Megachasma applegatei'' – have been discovered from fossilized tooth remains.Shimada, Kenshu, and David J. Ward. "The oldest fossil record of the megamouth shark from the late Eocene of Denmark, and comments on the enigmatic megachasmid origin./ref> An early ancestor of ''M. pelagios'' was reported from the Burdigalian The Burdigalian is, in the geologic timescale, an age (geology), age or stage (stratigraphy), stage in the early Miocene. It spans the time between 20.43 ± 0.05 annum, Ma and 15.9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for separating the New World of the Americas (North America and South America) from the Old World of Afro-Eurasia (Africa, Asia, and Europe). Through its separation of Afro-Eurasia from the Americas, the Atlantic Ocean has played a central role in the development of human society, globalization, and the histories of many nations. While the Norse colonization of North America, Norse were the first known humans to cross the Atlantic, it was the expedition of Christopher Columbus in 1492 that proved to be the most consequential. Columbus's expedition ushered in an Age of Discovery, age of exploration and colonization of the Americas by European powers, most notably Portuguese Empire, Portugal, Spanish Empire, Sp ... [...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] |
Worldwide Megamouth Sightings
Worldwide may refer to: * Pertaining to the entire world * Worldwide (rapper) (born 1986), American rapper * Pitbull (rapper) (born 1981), also known as Mr. Worldwide, American rapper * ''Worldwide'' (Audio Adrenaline album), 2003 * ''Worldwide'' (The Death Set album), 2016 * ''Worldwide'' (Everything but the Girl album), 1991 * "Worldwide" (song), a 2011 song by Big Time Rush from ''BTR'' * "World Wide (Remix)", a song by Outlawz from ''Novakane'', 2001 * World-Wide Shipping, a Hong Kong–based shipping company that merged with Norwegian company Bergesen to form BW Group * Worldwide magazine, a magazine for the Austin Motor Company by the in-house Nuffield Press See also * Cosmopolitanism * International (other) * Global (other) * World The world is the totality of entities, the whole of reality, or everything that Existence, exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Biology Of Fishes
''Environmental Biology of Fishes'' is a peer-reviewed scientific journal focusing on all aspects of fish and fish-related biology, and the links to their environment. The journal is published by Springer Science+Business Media and was established in 1976. The current editor-in-chief is Margaret F. Docker (University of Manitoba). Abstracting and indexing The journal is abstracted and indexed in the following databases: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 1.844. References External links *{{Official website, https://www.springer.com/life+sciences/ecology/journal/10641 Ichthyology journals Academic journals established in 1976 Springer Science+Business Media academic journ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyology
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2025, with approximately 250 new species described each year. Etymology The word is derived from the Ancient Greek words ἰχθύς, ''ikhthus'', meaning "fish"; and λόγος, ''logos'', meaning "study". History The study of fish dates from the Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements. The study of fish receives its origins from humans' desire to feed, clothe, and equip themselves with useful implements. According to Michael Barton, a prominent ichthyologist and professor at Centre College, "the earliest ichthyologists were hunters and gatherers who had learned how to obtain the most use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelacanth
Coelacanths ( ) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. As sarcopterygians, they are more closely related to lungfish and tetrapods (the terrestrial vertebrates including living amphibians, reptiles, birds and mammals) than to ray-finned fish. The name coelacanth originates from the Permian genus '' Coelacanthus'', which was the first scientifically named genus of coelacanths (in 1839), becoming the type genus of Coelacanthiformes as other species were discovered and named. Well-represented in freshwater and marine deposits from as early as the Devonian period (more than 410million years ago), they were thought to have become extinct in the Late Cretaceous, around 66million years ago. The first living species, ''Latimeria chalumnae'', the West Indian Ocean coelacanth, was described from specimens fished off the coast of South Africa from 1938 onward; they are now also known to inhabit the seas around the Comoro Islands off the eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leighton Taylor
Leighton may refer to: Places In Australia: * Leighton, Western Australia, a beachside locality In the United Kingdom: * Leighton, Cambridgeshire * Leighton, Cheshire * Leighton, North Yorkshire ** Leighton Reservoir * Leighton, Shropshire *Leighton, a village on the Wirral *Leighton Buzzard, a town in Bedfordshire, England * Leighton Hall, Lancashire *Leighton Hall, Powys, including Leighton Model Farm * Leighton House, Wiltshire, a country house *Leighton House Museum, a museum in London * Leighton Library, an historic library in Dunblane, Scotland * RSPB Leighton Moss, English nature reserve In the United States: *Leighton, Alabama * Leighton, Iowa * Leighton Township, Michigan In Asia: * Leighton Hill, Hong Kong People * Leighton (given name) * Leighton (surname) Other uses * CIMIC Group, Australian project development and contracting company until 2015 known as Leighton Holdings * Leighton Asia, a construction contractor headquartered in Hong Kong * Leighton Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proceedings Of The California Academy Of Sciences
The California Academy of Sciences is a research institute and natural history museum in San Francisco, San Francisco, California, that is among the largest List of natural history museums, museums of natural history in the world, housing over 46 million specimens. The academy began in 1853 as a learned society and still carries out a large amount of original research. The institution is located in Golden Gate Park on the West Side (San Francisco), West Side of San Francisco. Completely rebuilt in 2008, the academy's primary building in Golden Gate Park covers . In early 2020, before the COVID-19 pandemic, the California Academy of Sciences had around 500 employees and an annual revenue of about $33 million. Governance The California Academy of Sciences, California's oldest operating museum and research institution for the natural sciences, is governed by a 41-member board of trustees who are nominated and chosen by the California Academy of Sciences Fellows. The Academy Fello ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Anchor
A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy weather. Its purpose is to stabilize the vessel and to limit progress through the water. Rather than tethering the boat to the seabed with a conventional anchor, a sea anchor provides hydrodynamic drag (physics), drag, thereby acting as a brake. Normally attached to a vessel's Bow (ship), bows, a sea anchor can prevent the vessel from turning broadside to the waves and being overwhelmed by them. Early sea anchors were crude devices, but today most take the form of a drogue parachute. Larger sea anchors are so efficient that they need a tripping line to collapse the parachute for retrieval. Being made of fabric, a sea parachute may be bagged and easily stowed when not in use. A similar device to the sea anchor is the much smaller drogue, which is streamed from a vessel's stern in strong winds so as to slow the boat to prevent pitch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
