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Isopisthus Acer
''Isopisthus'' is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the western Atlantic and eastern Pacific Oceans. Taxonomy ''Isopisthus'' Was first proposed as a monospecific genus in 1862 by the American biologist Theodore Gill with ''Ancylodon parvipinnis'', originally described by Georges Cuvier in 1830 with its type locality given as Cayenne, designated as its type species. This genus has been placed in the subfamily Cynoscioninae by some workers, but the 5th edition of ''Fishes of the World'' does not recognise subfamilies within the Sciaenidae which it places in the order Acanthuriformes. Etymology ''Isopisthus'' is a combination of ''isos'', meaning "equal", and ''opisthen'', which means "behind", an allusion to the soft-rayed part of the dorsal fin and anal fin of the bigtooth corvina being almost equal in length. Species ''Isopisthus'' has 2 extant species classified within it: * '' Isopisthus pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington D.C. in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes and mollusks most particularly although maintaining proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, D.C. Fellow members frequently mocked him for his vanity. He was president of the American Associati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Starr Jordan
David Starr Jordan (January 19, 1851 – September 19, 1931) was the founding president of Stanford University, serving from 1891 to 1913. He was an ichthyologist during his research career. Prior to serving as president of Stanford University, he had served as president of Indiana University from 1884 to 1891. Starr was also a strong supporter of eugenics, and his published views expressed a fear of "race-degeneration" and asserted that cattle and human beings are "governed by the same laws of selection". He was an antimilitarist since he believed that war killed off the best members of the gene pool, and he initially opposed American involvement in World War I. Early life and career Jordan was born in Gainesville, New York, and grew up on a farm in upstate New York. His parents made the unorthodox decision to educate him at a local girls' high school. His middle name, Starr, does not appear in early census records, and was apparently self-selected; he had begun using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Tropical Research Institute
The Smithsonian Tropical Research Institute (STRI, es, Instituto Smithsonian de Investigaciones Tropicales) is located in Panama and is the only bureau of the Smithsonian Institution based outside of the United States. It is dedicated to understanding the past, present, and future of tropical ecosystems and their relevance to human welfare. STRI grew out of a small field station established in 1923 on Barro Colorado Island in the Panama Canal Zone to become one of the world's leading tropical research organizations. STRI's facilities provide for long-term ecological studies in the tropics and are used by some 1,200 visiting scientists from academic and research institutions around the world every year. History Smithsonian scientists first came to Panama during the construction of the Panama Canal from 1904 to 1914. The Secretary of the Smithsonian Institution, Charles Doolittle Walcott, reached an agreement with Federico Boyd to conduct a biological inventory of the new Canal Zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation. Fish can use their lateral line system to follow the vortices produced by fleeing prey. Lateral lines are usually visible as faint lines of pores running lengthwise down each side, from the vicinity of the gill covers to the base of the tail. In some species, the receptive organs of the lateral line have been modified to function as electroreceptors, which are organs used to detect electrical impulses, and as such, these systems remain closely linked. Most amphibian larvae and some fully aquatic adult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycloid Scale
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages. The term ''scale'' derives from the Old French , meaning a shell pod or husk. Scales vary enormously in size, shape, structure, and extent, ranging from strong and rigid armour plates in fishes such as shrimpfishes and boxfishes, to microscopic or absent in fishes such as eels and anglerfishes. The morphology of a scale can be used to identify the species of fish it came from. Scales originated within the jawless ostracoderms, ancestors to all jawed fishes today. Most bony fishes are covered with the cycloid scales of salmon and carp, or the ctenoid scales of perch, or the ganoid scales of sturgeons and gars. Cartilaginous fishes (sharks and rays) are covered with placoid scales. Some specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (fish{
Operculum may refer to: Human biology *Operculum (brain), the part of the brain covering the insula *Operculum (dentistry), a small flap of tissue which may cover an erupting or partially erupted molar *Cervical mucus plug, the cervical mucus plug that blocks the cervix of the uterus after conception Animal biology * Operculum (animal), a structure resembling a lid or a small door that opens and closes * Operculum (bird), a structure which covers the nares of some birds * Operculum (bryozoa), a lid on the orifice of some bryozoans * Operculum (fish), a flap covering the gills of bony fish * Operculum (gastropod), a sort of trapdoor used to close the aperture of some snails * Operculum papillare, the iris found in the eyes of elasmobranchs (skates, sharks, and rays) * The anterior end of the puparium in some insects, through which the adult emerges; for example the wasp ''Stenogastrinae'' Botany *Operculum (botany), various lids and flaps pertaining to plants, algae, and fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preoperculum
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. A B C D E F G H I J K L M N O P R S T U V W {{glossaryend * Fishkeeping Ichthyology Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbel (anatomy)
In fish anatomy and turtle anatomy, a barbel is a slender, whiskerlike sensory organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark such as the sawshark. Barbels house the taste buds of such fish and are used to search for food in murky water. The word ''barbel'' comes from Latin ''barbula'' 'little beard'. Barbels are sometimes erroneously referred to as '' barbs'', which are found in bird feathers for flight. Barbels may be located in a variety of locations on the head of a fish. "Maxillary barbels" refers to barbels on either side of the mouth. Barbels may also be nasal, extending from the nostrils. Also, barbels are often mandibular or mental, being located on the chin. In fish, barbels can take the form of small, fleshy protrusions or long, cylindrical shaped extensions of the head of a fish. The cylindrical barbel shapes are built on an internal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippe Béarez
Philippe is a masculine sometimes feminin given name, cognate to Philip. It may refer to: * Philippe of Belgium (born 1960), King of the Belgians (2013–present) * Philippe (footballer) (born 2000), Brazilian footballer * Prince Philippe, Count of Flanders, father to Albert I of Belgium * Philippe d'Orléans (other), multiple people * Philippe A. Autexier (1954–1998), French music historian * Philippe Blain, French volleyball player and coach * Philippe Najib Boulos (1902–1979), Lebanese lawyer and politician * Philippe Coutinho, Brazilian footballer * Philippe Daverio (1949–2020), Italian art historian * Philippe Dubuisson-Lebon, Canadian football player * Philippe Ginestet (born 1954), French billionaire businessman, founder of GiFi * Philippe Gilbert, Belgian bicycle racer * Philippe Petit, French performer and tightrope artist * Philippe Petitcolin (born 1952/53), French businessman, CEO of Safran * Philippe Russo, French singer * Philippe Sella, French rugby pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Werner Schwarzans
Werner may refer to: People * Werner (name), origin of the name and people with this name as surname and given name Fictional characters * Werner (comics), a German comic book character * Werner Von Croy, a fictional character in the ''Tomb Raider'' series * Werner von Strucker, a fictional character in the Marvel Comics universe * Werner, a fictional character in '' Darwin's Soldiers'' * Werner Ziegler, a fictional character from tv show Better Call Saul Geography *Werner, West Virginia * Mount Werner, a mountain that includes the Steamboat Ski Resort, in the Park Range of Colorado * Werner (crater), a crater in the south-central highlands of the Moon * Werner projection, an equal-area map projection preserving distances along parallels, central meridian and from the North pole Companies * Carsey-Werner, an American television and film production studio * Werner Enterprises, a Nebraska-based trucking company * Werner Co., a manufacturer of ladders * Werner Motors, an early aut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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