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Lepeophtheirus Elegans
''Lepeophtheirus elegans'' is a species of sea lice. Known fish hosts are the stichaeids '' Chirolophis japonicus'' and '' Pholidapus dybowskii'' from Russia, Japan and Korea, the pholid '' Pholis picta'' and the cottid ''Myoxocephalus brandtii'', both from Russian waters, and the sebastid ''Sebastes schlegelii ''Sebastes schlegelii'', also known as the Korean rockfish, northern black seaperch, black rockfish, and woo-reok (우럭) in Korean, is a predatory species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of ...'', the Korean rockfish. left, First chalimus: A, leg 3; B, leg 3 (other specimen); C, leg 4; D, caudal ramus; E, habitus of putative female, dorsal. Scale bars: A–D = 0.025 mm; E = 0.2 mm. References External links * Siphonostomatoida Crustaceans of the Pacific Ocean Parasitic crustaceans Animal parasites of fish Crustaceans described in 1951 {{copepod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexandr Vladimirovich Gussev
Alexandr Vladimirovich Gussev (Александр Владимирович Гусев, 5 July 1917 – 31 December 1999), sometimes spelled Gusev in the literature, was a Russian helminthologist specialist of monogeneans. Gussev was a student of the soviet parasitologist V. A. Dogiel. He worked at the Zoological Institute in Leningrad, then Saint Petersburg, Russia. He received his PhD in 1953 and his DrSc in 1973. Gussev wrote more than 220 publications, dealing with systematics, faunistics, morphology, development, biology and zoogeography of fish parasites. Gussev is mainly known for his work on the Monogenea, a group of Platyhelminthes parasitic on freshwater and marine fish. He was one of the world leader in this field and described more than 200 new species of monogeneans. He also authored a handbook on methods of collecting monogeneans. Honours * Certificate of Honour from the Preasidium of the Academy of Sciences of the USSR * Honorary member of the American Society of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Lice
Sea lice (singular: sea louse) are copepods (small crustaceans) of the family Caligidae within the order Siphonostomatoida. They are marine ectoparasites (external parasites) that feed on the mucus, epidermal tissue, and blood of host fish. The roughly 559 species in 37 genera include around 162 ''Lepeophtheirus'' and 268 ''Caligus'' species. The genera ''Lepeophtheirus'' and ''Caligus'' parasitize marine fish, in particular those species that have been recorded on farmed salmon. ''Lepeophtheirus salmonis'' and various ''Caligus'' species are adapted to salt water and are major ectoparasites of farmed and wild Atlantic salmon. Several antiparasitic drugs have been developed for control purposes. ''L. salmonis'' is the best understood in the areas of its biology and interactions with its salmon host. ''Caligus rogercresseyi'' has become a major parasite of concern on salmon farms in Chile. Studies are under way to gain a better understanding of the parasite and the host-paras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chirolophis Japonicus
''Chirolophis'' is a genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks and shannies. The species of this genus are found in Northern Pacific Ocean and Northern Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an .... Species The following species are classified within the genus Chirolophis: References {{Taxonbar, from=Q2233486 Chirolophinae Taxa described in 1839 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pholidapus Dybowskii
''Pholidapus'' is a monotypic genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks and shannies. Its only species is ''Pholidapus dybowskii'' which is found in the northwestern Pacific Ocean. Taxonomy ''Pholidapus'' was first proposed as a monospecific genus in 1897 by the American ichthyologists, the brothers, Tarleton Hoffman Bean and Barton Appler Bean when they described a new species, ''Pholidapus grebnitskii'', from Japan. ''P. grebnitskii'' was later shown to be junior synonym of ''Centronotus dybowskii'' which had been described in 1880 by Franz Steindachner from the Gulf of Strielok near Vladivostok in Russia. This taxon is placed in the subfamily Opisthocentrinae within the family Stichaeidae by some authorities, while others treat the subfamily as a valid family, the Ophistocentridae. Etymology ''Pholidapus'' refers to the genus's smilarity to the genus ''Pholis'' and combines that name with ''apus'', which means "no foot", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pholis Picta
''Pholis'' is a genus of marine ray-finned fish belonging to the family Pholidae, the gunnels. These fishes are found in shallow coastal waters of the North Pacific, Arctic and North Atlantic Oceans. Taxonomy ''Pholis'' was first proposed as a genus in 1777 by the Italian naturalist Giovanni Antonio Scopoli. The type species was later designated to be ''Blennius gunnellus'', which Linnaeus had described in 1758 in the 10th edition of the ''Systema Naturae''. The genus is the only genus in the monotypic subfamily Pholinae, one of two subfamilies in the family Pholidae. The genus name ''Pholis'' is an Ancient Greek name for a fish that hides in a hole, the name dating at least as far back in history to Aristotle. Species ''Pholis'' contains 11 species: Characteristics Philos species have the elongate, compressed bodies of other gunnels. They differ on that there is no interorbital pore and that the head lacks scales or has small scales which are only present in larger a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myoxocephalus Brandtii
''Myoxocephalus brandtii'', the snowy sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is found in the northwest Pacific, with a range extending from the Sea of Okhotsk to Hokkaido and the Sea of Japan. ''Myoxocephalus brandtii'' was first formally described in 1867 as ''Cottus brandtii'' by the Austrian ichthyologist Franz Steindachner with its type locality given as the mouth of the Amur in Russia. It inhabits relatively shallow coastal waters (less than ), and can grow to a length of . ''Lepeophtheirus elegans'' is a species of sea lice Sea lice (singular: sea louse) are copepods (small crustaceans) of the family Caligidae within the order Siphonostomatoida. They are marine ectoparasites (external parasites) that feed on the mucus, epidermal tissue, and blood of host fish. Th ... reported on ''M. brandtii''. References External links * Myoxocephalus brandtii' at thEncyclopedia of Life brandtii ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebastes Schlegelii
''Sebastes schlegelii'', also known as the Korean rockfish, northern black seaperch, black rockfish, and woo-reok (우럭) in Korean, is a predatory species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae It is found in the Northwest Pacific Ocean. Taxonomy ''Sebastes schlegeli '' was first formally described in 1880 by the German zoologist and paleontologist Franz Martin Hilgendorf with the type locality given as Tokyo and Hakodate in Japan. Some authorities place this species in the subgenus ''Acutomentum'', of which it is the type species. The specific name honours the German ornithologist and herpetologist Hermann Schlegel, who, cowrote ''Fauna Japonica'' with Coenraad Jacob Temminck in which they reported this species as '' S. inermis''. Distribution The species is found in the Northwest Pacific Ocean, off China, the Korean Peninsula and Japan. Description ''S. schlegelii'' are blackish with black pelvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepeophtheirus Elegans Parasite130014-fig5
''Lepeophtheirus'' is a genus of sea louse. The best-known species is ''L. salmonis'', the salmon louse. Other species include '' L. pectoralis'', which uses flatfish as its host, particularly the European flounder, and is also the type species of the genus ''Lepeophtheirus''. Species ''Lepeophtheirus'' contains 122 species: *'' Lepeophtheirus acutus'' Heegaard, 1943 *''Lepeophtheirus aesopus'' C. B. Wilson, 1906 *'' Lepeophtheirus alvaroi'' Suárez-Morales & Gasca, 2012 *''Lepeophtheirus anguilli'' Hameed, 1976 *''Lepeophtheirus appendiculatus'' Krøyer, 1863 *''Lepeophtheirus argentus'' Hewitt, 1963 *''Lepeophtheirus atypicus'' Lin ''et al.'', 1996 *''Lepeophtheirus bagri'' Dana, 1849 *'' Lepeophtheirus bifidus'' Fraser, 1920 *''Lepeophtheirus bifurcatus'' C. B. Wilson, 1905 *''Lepeophtheirus bonaci'' Pearse, 1952 *''Lepeophtheirus brachyurus'' Heller, 1865 *''Lepeophtheirus breviventris'' Fraser, 1920 *''Lepeophtheirus bychowskyi'' Gusev, 1951 *''Lepeophtheirus ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonostomatoida
Siphonostomatoida is an order of copepods, containing around 75% of all the copepods that parasitise fishes. Their success has been linked to their possession of siphon-like mandibles and of a "frontal filament" to aid attachment to their hosts. Most are marine, but a few live in fresh water. There are 40 recognised families: * Archidactylinidae Izawa, 1996 *Artotrogidae Brady, 1880 *Asterocheridae Giesbrecht, 1899 *Brychiopontiidae Humes, 1974 *Caligidae Burmeister, 1835 * Calverocheridae Stock, 1968 *Cancerillidae Giesbrecht, 1897 *Codobidae Boxshall & Ohtsuka, 2001 *Coralliomyzontidae Humes & Stock, 1991 * Dichelesthiidae Milne-Edwards, 1840 *Dichelinidae Boxshall & Ohtsuka, 2001 *Dinopontiidae Murnane, 1967 *Dirivultidae Humes & Dojiri, 1980 *Dissonidae Yamaguti, 1963 *Ecbathyriontidae Humes, 1987 *Entomolepididae Brady, 1899 *Eudactylinidae C. B. Wilson, 1932 * Hatschekiidae Kabata, 1979 * Hyponeoidae Heegaard, 1962 * Kroyeriidae Kabata, 1979 * Lernaeopodidae Milne-Edwards, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustaceans Of The Pacific Ocean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Crustaceans
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's body; an ect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Parasites Of Fish
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinoderms an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
