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Pseudocetonurus
''Pseudocetonurus septifer'' is a species of rattail, the only known species in the genus ''Pseudocetonurus''. This fish is found at depths of up to 950 m in the waters around Hawaii and in the south-eastern Pacific. It has recently also been recorded on the other side of the Pacific, near Taiwan, and this species probably has a pan-Pacific distribution but has been underrecorded due to the depths in which it lives. This species attains a length of up to 39 cm. It is unique among rattails in having 7 branchiostegal rays and a large gill opening. This is a generally very dark, sometimes black, fish with a very large head and small, widely spaced eyes. There is a small bioluminescent organ located between the pelvic fin Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two en ...s. Refe ... [...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] |
Yuri Sazonov
Yuri may refer to: People and fictional characters Given name * Yuri (Slavic name), the Slavic masculine form of the given name George, including a list of people with the given name Yuri, Yury, etc. * Yuri (Japanese name), also Yūri, feminine Japanese given names, including a list of people and fictional characters * Yu-ri (Korean name), Korean unisex given name, including a list of people and fictional characters Singers *Yuri (Japanese singer), vocalist of the band Move *Yuri (Korean singer), member of Girl Friends * Yuri (Mexican singer) *Kwon Yu-ri, member of Girls' Generation Footballers *Yuri (footballer, born 1982), full name Yuri de Souza Fonseca, Brazilian football forward *Yuri (footballer, born 1984), full name Yuri Adriano Santos, Brazilian footballer *Yuri (footballer, born 1986), full name Yuri Vera Cruz Erbas, Brazilian footballer *Yuri (footballer, born 1989), full name Yuri Naves Roberto, Brazilian football defensive midfielder *Yuri (footballer, born 1990), fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Shcherbachev
Yuri may refer to: People and fictional characters Given name * Yuri (Slavic name), the Slavic masculine form of the given name George, including a list of people with the given name Yuri, Yury, etc. * Yuri (Japanese name), also Yūri, feminine Japanese given names, including a list of people and fictional characters * Yu-ri (Korean name), Korean unisex given name, including a list of people and fictional characters Singers *Yuri (Japanese singer), vocalist of the band Move *Yuri (Korean singer), member of Girl Friends * Yuri (Mexican singer) *Kwon Yu-ri, member of Girls' Generation Footballers *Yuri (footballer, born 1982), full name Yuri de Souza Fonseca, Brazilian football forward *Yuri (footballer, born 1984), full name Yuri Adriano Santos, Brazilian footballer *Yuri (footballer, born 1986), full name Yuri Vera Cruz Erbas, Brazilian footballer *Yuri (footballer, born 1989), full name Yuri Naves Roberto, Brazilian football defensive midfielder *Yuri (footballer, born 1990), fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Igorevich Sazonov
Yuri may refer to: People and fictional characters Given name *Yuri (Slavic name), the Slavic masculine form of the given name George, including a list of people with the given name Yuri, Yury, etc. *Yuri (Japanese name), also Yūri, feminine Japanese given names, including a list of people and fictional characters *Yu-ri (Korean name), Korean unisex given name, including a list of people and fictional characters Singers *Yuri (Japanese singer), vocalist of the band Move *Yuri (Korean singer), member of Girl Friends *Yuri (Mexican singer) * Kwon Yu-ri, member of Girls' Generation Footballers *Yuri (footballer, born 1982), full name Yuri de Souza Fonseca, Brazilian football forward *Yuri (footballer, born 1984), full name Yuri Adriano Santos, Brazilian footballer *Yuri (footballer, born 1986), full name Yuri Vera Cruz Erbas, Brazilian footballer *Yuri (footballer, born 1989), full name Yuri Naves Roberto, Brazilian football defensive midfielder *Yuri (footballer, born 1990), full ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Nikolaevich Shcherbachev
Yuri may refer to: People and fictional characters Given name *Yuri (Slavic name), the Slavic masculine form of the given name George, including a list of people with the given name Yuri, Yury, etc. *Yuri (Japanese name), also Yūri, feminine Japanese given names, including a list of people and fictional characters *Yu-ri (Korean name), Korean unisex given name, including a list of people and fictional characters Singers *Yuri (Japanese singer), vocalist of the band Move *Yuri (Korean singer), member of Girl Friends *Yuri (Mexican singer) *Kwon Yu-ri, member of Girls' Generation Footballers *Yuri (footballer, born 1982), full name Yuri de Souza Fonseca, Brazilian football forward *Yuri (footballer, born 1984), full name Yuri Adriano Santos, Brazilian footballer *Yuri (footballer, born 1986), full name Yuri Vera Cruz Erbas, Brazilian footballer *Yuri (footballer, born 1989), full name Yuri Naves Roberto, Brazilian football defensive midfielder * Yuri (footballer, born 1990), full ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ROC consist of 168 islands, with a combined area of . The main island of Taiwan, also known as ''Formosa'', has an area of , with mountain ranges dominating the eastern two-thirds and plains in the western third, where its highly urbanised population is concentrated. The capital, Taipei, forms along with New Taipei City and Keelung the largest metropolitan area of Taiwan. Other major cities include Taoyuan, Taichung, Tainan, and Kaohsiung. With around 23.9 million inhabitants, Taiwan is among the most densely populated countries in the world. Taiwan has been settled for at least 25,000 years. Ancestors of Taiwanese indigenous peoples settled the isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyology Terms
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] |
Gill
A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (pl. branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill cham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescent
Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some Fungus, fungi, microorganisms including some bioluminescent bacteria, 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 a general sense, the principal chemical reaction in bioluminescence involves a light-emitting molecule and an enzyme, generally called luciferin and luciferase, respectively. Because these are generic names, luciferins and luciferases are often distinguished by the species or group, e.g. firefly luciferin. In all characterized cases, the enzyme Catalysis, catalyzes the Redox, oxidation of the luciferin. In some species, the luciferase requires other Cofactor (bio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into a spiny copulatory device that grasps the female during mating. File:Pelvic fin skeleton.png, Pelvic fin skeleton for ''Danio rerio'', zebrafish. File:Zuignap waarmee de zwartbekgrond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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