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Macrourus
''Macrourus'' is a small benthopelagic genus of rattails from the family Macrouridae. General features The species in the genus ''Macrourus'' have large broad heads which are over four times as deep as it is long with a snout which varies from rounded to bluntly pointed, with a substantial modified spiny scale at its tip. They have a strong, suborbital ridge that extends onto preopercle and ends with a sharp point. The eyes have a diameter of around one third of the length of the head. It has small teeth which are set in in moderate to broad bands in the premaxilla which taper posteriorly and ending well short of the ends of the lips; the mandibular band is either 3 or 4 teeth wide at the symphysis, narrowing to 1 row posteriorly and extending to about the end of the lips. They have a serrated spiny dorsal fin ray; the pelvic fin usually has 8 or 9 rays. The anus is at the anal fin, there is no photophore. Their maximum size is probably around . Habitat, distribution and biolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrourus Caml
''Macrourus'' is a small benthopelagic genus of rattails from the family Macrouridae. General features The species in the genus ''Macrourus'' have large broad heads which are over four times as deep as it is long with a snout which varies from rounded to bluntly pointed, with a substantial modified spiny scale at its tip. They have a strong, suborbital ridge that extends onto preopercle and ends with a sharp point. The eyes have a diameter of around one third of the length of the head. It has small teeth which are set in in moderate to broad bands in the premaxilla which taper posteriorly and ending well short of the ends of the lips; the mandibular band is either 3 or 4 teeth wide at the symphysis, narrowing to 1 row posteriorly and extending to about the end of the lips. They have a serrated spiny dorsal fin ray; the pelvic fin usually has 8 or 9 rays. The anus is at the anal fin, there is no photophore. Their maximum size is probably around . Habitat, distribution a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrourus Whitsoni
''Macrourus'' is a small benthopelagic genus of rattails from the family Macrouridae. General features The species in the genus ''Macrourus'' have large broad heads which are over four times as deep as it is long with a snout which varies from rounded to bluntly pointed, with a substantial modified spiny scale at its tip. They have a strong, suborbital ridge that extends onto preopercle and ends with a sharp point. The eyes have a diameter of around one third of the length of the head. It has small teeth which are set in in moderate to broad bands in the premaxilla which taper posteriorly and ending well short of the ends of the lips; the mandibular band is either 3 or 4 teeth wide at the symphysis, narrowing to 1 row posteriorly and extending to about the end of the lips. They have a serrated spiny dorsal fin ray; the pelvic fin usually has 8 or 9 rays. The anus is at the anal fin, there is no photophore. Their maximum size is probably around . Habitat, distribution a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrourus Berglax
''Macrourus berglax'', the roughhead grenadier or onion-eye grenadier, is a species of marine ray-finned fish in the family Macrouridae. It is a deep-water fish found in the Atlantic Ocean. Description The roughhead grenadier can reach a length of one metre. The head occupies about one quarter of the total length of the fish, it has a slender body and long tapering tail. There are some bony spiny scutes or scales on the upper side of the head but the lower side is scaleless. The snout is pointed and the small mouth is set far back on the lower side of the head with a short barbel underneath. There are 3 to 5 rows of sharp teeth in the upper jaw and 1 or 2 rows in the lower jaw. The eye is large and bulbous, giving the fish its alternative name of onion-eye grenadier. There are two dorsal fins, the front one having 11 to 13 finrays and the hind one running along the back to the tip of the tail. The anal fin is similarly long and narrow and there is no tailfin. The body is covered i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrourus Carinatus
The ridge scaled rattail or ridge-scaled grenadier, ''Macrourus carinatus'', is a species of deep-water fish in the family Macrouridae. It has southern circumglobal distribution in temperate to subantarctic waters (34°S–65°S) and is found in the Southern Atlantic, Indian and Pacific Oceans and in the Southern Ocean at depths of about . Description and life history ''Macrourus carinatus'' can reach in total length and about in pre-anal length. The eyes are relatively large. The snout is short and moderately pointed. Coloration is medium brown to somewhat straw color, with darker, sometimes even blackish fins. In the waters of the Falkland Islands, females reach 50% maturity at pre-anal length and 14 years of age. Males reach 50% maturity at pre-anal length and 12 years of age. Spawning occurs throughout the year but peaks during the austral autumn (April–July). Females also have a larger asymptotic pre-anal length than males, , respectively. Maximum recorded age is 53 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ridge Scaled Rattail
The ridge scaled rattail or ridge-scaled grenadier, ''Macrourus carinatus'', is a species of deep-water fish in the family Macrouridae. It has southern circumglobal distribution in temperate to subantarctic waters (34°S–65°S) and is found in the Southern Atlantic, Indian and Pacific Oceans and in the Southern Ocean at depths of about . Description and life history ''Macrourus carinatus'' can reach in total length and about in pre-anal length. The eyes are relatively large. The snout is short and moderately pointed. Coloration is medium brown to somewhat straw color, with darker, sometimes even blackish fins. In the waters of the Falkland Islands, females reach 50% maturity at pre-anal length and 14 years of age. Males reach 50% maturity at pre-anal length and 12 years of age. Spawning occurs throughout the year but peaks during the austral autumn (April–July). Females also have a larger asymptotic pre-anal length than males, , respectively. Maximum recorded age is 53 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coryphaenoides Rupestris
''Coryphaenoides rupestris'' is a species of marine ray-finned fish in the family Macrouridae. Its common names include the rock grenadier, the roundnose grenadier and the roundhead rat-tail. In France it is known as ''grenadier de roche'' and in Spain as ''granadero de roca''. It is a large, deep-water species and is fished commercially in the northern Atlantic Ocean. Description The roundnose grenadier is a deep water fish sometimes reaching over a metre (yard) in length. The rounded head is large with a broad snout, the abdomen small and the tail long and tapering to a pointed tip. At the front of the snout there is a blunt, tube-like scute or scale and there is a small barbel under the chin. There are three rows of small teeth at the front of the mouth but only one row at the back. The scales on the body are densely packed and covered with small spines. The dorsal fin has two spines and 8 to 11 soft rays and the pelvic fin has 7 to 8 soft rays, the outer one of which is great ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rattail
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 tap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Council For The Exploration Of The Sea
The International Council for the Exploration of the Sea (ICES; french: Conseil International de l'Exploration de la Mer, ''CIEM'') is a regional fishery advisory body and the world's oldest intergovernmental science organization. ICES is headquartered in Copenhagen, Denmark, where its multinational secretariat staff of 51 provide scientific, administrative and secretarial support to the ICES community. It was established on July 22, 1902, in Copenhagen. Functions ICES is a leading multidisciplinary scientific forum for the exchange of information and ideas on all aspects of marine sciences pertaining to the North Atlantic, including the adjacent Baltic Sea and North Sea, and for the promotion and coordination of marine research by scientists within its member nations. Its principal functions, both when it was established and continuing to the present time, are to: (i) promote, encourage, develop, and coordinate marine research; (ii) publish and otherwise disseminate results of r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernard Germain De Lacépède
Bernard-Germain-Étienne de La Ville-sur-Illon, comte de Lacépède or La Cépède (; 26 December 17566 October 1825) was a French naturalist and an active freemason. He is known for his contribution to the Comte de Buffon's great work, the ''Histoire Naturelle''. Biography Lacépède was born at Agen in Guienne. His education was carefully conducted by his father, and the early perusal of Buffon's Natural History ('' Histoire naturelle, générale et particulière'') awakened his interest in that branch of study, which absorbed his chief attention. His leisure he devoted to music, in which, besides becoming a good performer on the piano and organ, he acquired considerable mastery of composition, two of his operas (which were never published) meeting with the high approval of Gluck; in 1781–1785 he also brought out in two volumes his ''Poétique de la musique''. Meantime he wrote two treatises, ''Essai sur l'électricité'' (1781) and ''Physique générale et particuliè ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcus Elieser Bloch
Marcus Elieser Bloch (1723–1799) was a German physician and naturalist who is best known for his contribution to ichthyology through his multi-volume catalog of plates illustrating the fishes of the world. Brought up in a Hebrew-speaking Jewish family, he learned German and Latin and studied anatomy before settling in Berlin as a physician. He amassed a large natural history collection, particularly of fish specimens. He is generally considered one of the most important ichthyology, ichthyologists of the 18th century, and wrote many papers on natural history, comparative anatomy, and physiology. Life Bloch was born at Ansbach in 1723 where his father was a Torah writer and his mother owned a small shop. Educated at home in Hebrew literature he became a private tutor in Hamburg for a Jewish surgeon. Here he learned German, Latin and anatomy. He then studied medicine in Berlin and received a doctorate in 1762 from Frankfurt (Oder), Frankfort on the Oder with a treatise on skin dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Academy Of Sciences
The California Academy of Sciences is a research institute and natural history museum in San Francisco, California, that is among the largest 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 at the Golden Gate Park in 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 forty-one member Board of Trustees who are nominated and chosen by the California Academy of Sciences Fellows. The Academy Fellows are, in turn, " minated by their colleagues and appointed by the Board of Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalog Of Fishes
Catalog of Fishes is a comprehensive on-line database and reference work on the scientific names of fish species and genera. It is global in its scope and is hosted by the California Academy of Sciences. It has been compiled and is continuously updated by the curator emeritus of the CAS fish collection, William N. Eschmeyer. The taxonomy maintained by the Catalog of Fishes is considered authoritative and it is used as a baseline reference for instance by the broader global fish database FishBase, which involves cross-references to the Catalog's information for all accepted taxa. , the searchable catalogue contains entries for about 58,300 fish species names, about 33,400 of which are currently accepted (valid), and for some 10,600 genera (5,100 valid). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
