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Macrouridae
Macrouridae is a family of deep sea fish, a diverse and ecologically important group, which are part of the order of cod-like fish, the Gadiformes. The species in the Macrouridae are characterised by their large heads which normally have a single barbel on the chin, projecting snouts, and slender bodies that taper to whip-like tails, without an obvious caudal fin but what there is of the caudal fin is often confluent with the posterior dorsal and anal fins. There are normally two dorsal fins, the anterior dorsal fin is quite high, the posterior quite low but is longer and takes up a greater proportion of the fish's back. Species in the subfamily Macrouroidinae have a single dorsal fin. The long anal fin is almost as long as the posterior dorsal fin, and sometimes it is longer. The pelvic fin is inserted in the vicinity of the thorax and normally has 5–17 fin rays but these are absent in '' Macrouroides''. The body is covered in small scales and if they have a photophore, it i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grenadiers (fish)
Grenadiers or rattails are generally large, brown to black gadiform marine fish of the subfamily Macrourinae, the largest subfamily of the family Macrouridae. Found at great depths from the Arctic to Antarctic, members of this subfamily are amongst the most abundant of the deep-sea fish. The macrourins form a large and diverse family with 28 extant genera recognized (well over half of the total species are contained in just three genera, '' Coelorinchus'', '' Coryphaenoides'', and '' Nezumia''). They range in length from about in ''Hymenogadus gracilis'' to in ''Albatrossia pectoralis''. Several attempts have been made to establish a commercial fishery for the most common larger species, such as the giant grenadier, but the fish is considered unpalatable, and attempts thus far have proven unsuccessful. The subfamily as a whole may represent up to 15% of the deep-sea fish population. Rattails, characterized by large heads with large mouths and eyes, have slender bodies that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelorinchus Tokiensis
''Coelorinchus'' is a genus of rattail fish. The name derives from Greek κοῖλος (''koilos'', "hollow") and ῥύγχος (''rhynchos'', "snout"). Species There are currently 121 recognized species in this genus: * '' Coelorinchus acanthiger'' Barnard, 1925 (Surgeon grenadier) * '' Coelorinchus acantholepis'' C. H. Gilbert & C. L. Hubbs, 1920 * '' Coelorinchus aconcagua'' Iwamoto, 1978 (Aconcagua grenadier) * '' Coelorinchus acutirostris'' H. M. Smith & Radcliffe, 1912 (Spear-nose whiptail) * '' Coelorinchus amirantensis'' Iwamoto, Golani, Baranes & Goren, 2006 * '' Coelorinchus amydrozosterus'' Iwamoto & A. Williams, 1999 (Faint-banded whiptail) * '' Coelorinchus anatirostris'' D. S. Jordan & C. H. Gilbert, 1904 (Duck-bill grenadier) * '' Coelorinchus anisacanthus'' Sazonov, 1994 * '' Coelorinchus aratrum'' C. H. Gilbert, 1905 * '' Coelorinchus argentatus'' H. M. Smith & Radcliffe, 1912 (Silver whiptail) * '' Coelorinchus argus'' M. C. W. Weber, 1913 (Eye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrouroidinae
Macrouroidinae is a subfamily of rattails from the family Macrouridae, it contains only two species in two genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ... found in most tropical and temperate ocean. These species lives in deep-water. These fishes have a huge and rounded head with the consistency of a water-filled balloon. The eyes are tiny. The chin barbel is absent.Iwamoto, T., Nakayama, N., Shao, K.-T. & Ho, H.-C. (2015): Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan. ''Proceedings of the California Academy of Sciences, (Series 4), 62 (3): 31-126.'' References Gadiformes Macrouridae {{Gadiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachyrincinae
Trachyrincinae is a subfamily of the family Macrouridae, also known as rattails. The subfamily contains two genera found in Atlantic, Indian and 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 .... These species lives in deep-water. These fishes have a long, narrow and sharply pointed snout. The chin barbel is present.Iwamoto, T., Nakayama, N., Shao, K.-T. & Ho, H.-C. (2015): Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan. ''Proceedings of the California Academy of Sciences, (Series 4), 62 (3): 31-126.'' References Macrouridae Fish subfamilies {{Gadiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathygadinae
Bathygadinae is a subfamily of rattails in the family Macrouridae, the species of which are found in Atlantic, Indian and Pacific Ocean. These species lives in great depths. The chin barbel is usually absent in the genus ''Bathygadus ''Bathygadus'' is a genus of rattails of the family (biology), family Bathygadidae. Species There are currently 13 recognized species in this genus: * ''Bathygadus antrodes'' (David Starr Jordan, Jordan & Edwin Chapin Starks, Starks, 1904) * ''B ...,'' when present, the barbel is tiny and difficult to see without magnification. In '' Gadomus'' the chin barbel is present, usually thick and long.Iwamoto, T., Nakayama, N., Shao, K.-T. & Ho, H.-C. (2015): Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan. ''Proceedings of the California Academy of Sciences, (Series 4), 62 (3): 31-126.'' References Marine fish families Gadiformes Taxa named by David Starr Jordan {{Gadiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachonurus Sulcatus
''Trachonurus'' is a genus of rattails. Species There are currently six recognized species in this genus: * '' Trachonurus gagates'' Iwamoto & P. J. McMillan, 1997 (Velvet whiptail) * '' Trachonurus robinsi'' Iwamoto, 1997 * '' Trachonurus sentipellis'' C. H. Gilbert & Cramer Cramer may refer to: Businesses * Cramer brothers, 18th century publishers * Cramer Systems, a software company * Cramer & Co., a former musical-related business in London Other uses * Cramer (surname), including a list of people and fictional ..., 1897 (Shaggy whiptail) * '' Trachonurus sulcatus'' ( Goode & T. H. Bean, 1885) (Bristly grenadier) * '' Trachonurus villosus'' ( Günther, 1877) (Furry whiptail) * '' Trachonurus yiwardaus'' Iwamoto & A. Williams, 1999 (Yiwarda whiptail) References Macrouridae Taxa named by Albert Günther {{Gadiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gadiformes
Gadiformes , also called the Anacanthini, are an order of ray-finned fish that include the cod, hakes, pollock, haddock, burbot, rocklings and moras, many of which are food fish of major commercial value. They are mostly marine fish found throughout the world and the vast majority are found in temperate or colder regions (tropical species are typically deep-water) while a few species may enter brackish estuaries. Pacific tomcods, one of the two species that makes up the genus ''Microgadus'', are able to enter freshwater, but there is no evidence that they breed there. Some populations of landlocked Atlantic tomcod on the other hand, complete their entire life cycle in freshwater. Yet only one species, the burbot (''Lota lota''), is a true freshwater fish. Common characteristics include the positioning of the pelvic fins (if present), below or in front of the pectoral fins. Gadiformes are physoclists, which means their swim bladders do not have a pneumatic duct. The fins ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathygadus Melanobranchus
''Bathygadus'' is a genus of rattails of the family Bathygadidae. Species There are currently 13 recognized species in this genus: * '' Bathygadus antrodes'' (Jordan & Starks, 1904) * '' Bathygadus bowersi'' ( Gilbert, 1905) * '' Bathygadus cottoides'' Günther, 1878 (Codheaded rattail) * '' Bathygadus dubiosus'' Weber, 1913 * '' Bathygadus entomelas'' Gilbert & Hubbs, 1920 * ''Bathygadus favosus '' Goode & Bean, 1886 * '' Bathygadus furvescens'' Alcock Alcock is a surname. Notable people with the surname include: * Alfred William Alcock, British naturalist * C. W. Alcock, British sports administrator, creator of the FA Cup * Charles R. Alcock, American astronomer * Deborah Alcock, British auth ..., 1894 (Blackfin rattail) * '' Bathygadus garretti'' Gilbert & Hubbs, 1916 * '' Bathygadus macrops'' Goode & Bean, 1885 (Bullseye grenadier) * '' Bathygadus melanobranchus'' Vaillant, 1888 (Vaillant's grenadier) * '' Bathygadus nipponicus'' (Jordan & Gilbert, 1904) * '' Bathyga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symbiosis
Symbiosis (Ancient Greek : living with, companionship < : together; and ''bíōsis'': living) is any type of a close and long-term biological interaction, between two organisms of different species. The two organisms, termed symbionts, can for example be in Mutualism (biology), mutualistic, commensalism, commensalistic, or parasitism, parasitic relationships. In 1879, Heinrich Anton de Bary defined symbiosis as "the living together of unlike organisms". The term is sometimes more exclusively used in a restricted, mutualistic sense, where both symbionts contribute to each other's subsistence. This means that they benefit each other in some way. Symbiosis can be ''obligate'' (or ''obligative''), which means that one, or both of the organisms depend on each other for survival, or ''facultative'' (optional), when they can also subsist independently. Symbiosis is also classified by physical attachment. Symbionts forming a single body live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photophore
A photophore is a specialized anatomical structure found in a variety of organisms that emits light through the process of boluminescence. This light may be produced endogenously by the organism itself (symbiotic) or generated through a mutualistic relationship with bioluminescent bacteria (non-symbiotic), resulting in light production on a glandular organ of animals. Light organs are most commonly found in marine animals, including many species of fish and cephalopods. The organ can be simple, or as complex as the human eye, equipped with lenses, shutters, color filters, and reflectors; unlike an eye, however, it is optimized to produce light, not absorb it. In the context of developmental biology, light organs form through precise genetic regulation and, in some cases, microbial colonization during specific stages of an organism's life cycle. They play a crucial evolutionary role in enabling species to adapt to low-light or dark environments, particularly in the deep sea. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescence
Bioluminescence is the emission of light during a chemiluminescence reaction by living organisms. Bioluminescence occurs in multifarious organisms ranging from marine vertebrates and invertebrates, as well as in some Fungus, fungi, microorganisms including some bioluminescent bacteria, Dinoflagellate, dinoflagellates and terrestrial arthropods such as Firefly, fireflies. In some animals, the light is bacteriogenic, produced by symbiosis, symbiotic bacteria such as those from the genus ''Vibrio''; in others, it is autogenic, produced by the animals themselves. In most cases, the principal chemical reaction in bioluminescence involves the reaction of a substrate called luciferin and an enzyme, called luciferase. Because these are generic names, luciferins and luciferases are often distinguished by the species or group, e.g. firefly luciferin or Vargulin, cypridina luciferin. In all characterized cases, the enzyme Catalysis, catalyzes the Redox, oxidation of the luciferin resultin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Slope
A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters. It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges. The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. Continental margins constitute about 28% of the oceanic area. Subzones The continental shelf is the relatively shallow water area found in proximity to continents; it is the portion of the continental margin that transitions from the shore out towards to ocean. Continental shelves are believed to make up 7% of the sea floor. The width of continental shelves worldwide varies in the range of 0.03–1500 km. The continental shelf is generally flat, and ends at the shelf break, where there is a drastic increase in slope angle: The mean angle of continental shelves worldwide is 0° 07′, and typically steeper closer to the coa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
