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Cardiodectes Medusaeus
''Cardiodectes bellottii'' is a species of copepods in the family Pennellidae. It is a parasite of fish. It is found in the Atlantic and Pacific Oceans as well as the Mediterranean Sea; specimens from the Pacific were formerly treated as a separate species, ''Cardiodectes medusaeus''. In the cnidarian '' Hydrichthys sarcotretis'', parasitism is taken a stage further when the hydrozoan attaches itself to the ''C. bellottii''. This is itself an ectoparasite of the northern lampfish (''Stenobrachius leucopsarus'') in the family Myctophidae. The copepod attaches itself to the bulbus arteriosus of the fish. Such a parasitic chain is known as hyperparasitism. ''C. bellottii'' requires two hosts for proper development. It will go through five successive postembryonic stages, then only the postmated females will go into the pericardial cavity of a lanternfish Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small mesopelagi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebastiano Richiardi
Sebastiano Richiardi (26 February 1834, Lanzo – August 1904, Marina di Pisa) was an Italian anatomist and zoologist. In 1861 he became Professor of Comparative Anatomy at the University of Bologna and in 1871, held the same post at the University of Pisa. He was Rector Magnificus (principal) of the University of Pisa between 1891–93. Publications See External Links Collections The Richiardi collection of vertebrate osteology(together with his mounted specimens) and invertebrates is in Museo storia naturale di Pisa The Natural History Museum of the University of Pisa is a natural history museum in the city of Pisa in Tuscany, Italy. It houses one of the largest collection of cetaceans skeletons in Europe. The museum's oldest collections are seashells co ... External links University of Pisa Biography and publications listincludes portrait. {{DEFAULTSORT:Richiardi, Sebastiano Italian zoologists Italian anatomists 1834 births Academic staff of the University of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Branch Wilson
Charles Branch Wilson (October 20, 1861 – August 18, 1941) was an American scientist, a marine biologist. He is known for his extensive work on copepods, minute crustaceans. Early life and education Charles Branch Wilson was born in Exeter, Maine on October 20, 1861. He received his bachelor's and master's degree from Colby College of Waterville, Maine. He completed his doctorate from the Johns Hopkins University in 1910.Smithsonian Institution ArchivesRecord Unit 7235, Wilson, Charles Branch, 1861-1941, Charles Branch Wilson Papers/ref> Career While completing his master's degree, Wilson worked in Colby as a tutor in botany. In 1891, he was appointed a professor of science at the Gorham Normal School of Gorham, Maine (now the University of Southern Maine). In 1896, he became a professor of natural science at the Westfield Teachers College of Westfield, Massachusetts (now the Westfield State University). A year later he became a professor of biology and the head of the Scienc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennellidae
Pennellidae is a family of parasitic copepods. When anchored on a host, they have a portion of the body on the outside of the host, whereas the remaining anterior part of the parasite is hidden inside tissues of the host. Genera There are 24 genera: *'' Allotrifur'' Yamaguti, 1963 *''Cardiodectes'' C. B. Wilson, 1917 *'' Creopelates'' Shiino, 1958 *'' Exopenna'' Boxshall, 1986 *'' Haemobaphes'' Steenstrup & Lutken, 1861 *'' Impexus'' Kabata, 1972 *'' Lernaeenicus'' C. B. Wilson, 1932 *''Lernaeocera'' Blainville, 1822 *'' Lernaeolophus'' Heller, 1865 *'' Metapeniculus'' Castro-Romero & Baeza-Kurok, 1985 *'' Nagasawanus'' Uyeno, 2015 *'' Ophiolernaea'' Shiino, 1958 *'' Parinia'' Kazachenko & Avdeev, 1977 *''Peniculisa'' C. B. Wilson, 1917 *'' Peniculus'' von Nordmann, 1832 *''Pennella'' Oken, 1816 *'' Peroderma'' Heller, 1865 *'' Phrixocephalus'' C. B. Wilson, 1908 *'' Propeniculus'' Castro Romero, 2014 *''Protosarcotretes ''Protosarcotretes'' is a genus of marine copepods in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrichthys Sarcotretis
''Hydrichthys sarcotretis'' is a species of colonial marine hydrozoans now included in the family Pandeidae. The polyps of members of this genus are parasitic and attach themselves to a fish. ''H. sarcotretis'' is a species that exhibits hyperparasitism by attaching itself to a copepod, itself the parasite of a fish. In ''H. sarcotretis'', parasitism is taken a stage further when the hydrozoan attaches itself to the copepod ''Cardiodectes medusaeus''. This is itself an ectoparasite of the Northern lampfish (''Stenobrachius leucopsarus'') in the family Myctophidae. The copepod attaches itself to the bulbus arteriosus of the fish. Such a parasitic chain is known as hyperparasitism A hyperparasite, also known as a metaparasite, is a parasite whose host, often an insect, is also a parasite, often specifically a parasitoid. Hyperparasites are found mainly among the wasp-waisted Apocrita within the Hymenoptera, and in two othe .... The actions of the copepod castrate its fish host. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Lampfish
The northern lampfish (''Stenobrachius leucopsarus''), also known as smallfin lanternfish, is a small oceanic fish in the family Myctophidae. First described by husband and wife ichthyologists Carl H. and Rosa Smith Eigenmann in 1890, it is named for the numerous small round photophores that line the ventral surface of its head and body. A blunt-nosed, relatively large-mouthed fish with small teeth and large eyes, it is gray to dark greenish blue on its dorsal surface and paler ventrally, with black on its fins and operculum. Its large scales rub off easily. Adults can reach in length and live as long as . Found in the Pacific Ocean from Japan and Baja California to the Bering Sea, it is the most common species of lanternfish in the northwestern Pacific, and one of the most abundant larval fish in the California Current. Like all lanternfish, this is a deep sea species; it spends the day in the ocean's deeper bathypelagic and mesopelagic zones and ascends to or near the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulbus Arteriosus
In the circulatory system of fish, the bulbus arteriosus is a pear shaped chamber that functions as a capacitor, maintaining continuous blood flow into the gill arch Branchial arches, or gill arches, are a series of bony "loops" present in fish, which support the gills. As gills are the primitive condition of vertebrates, all vertebrate embryos develop pharyngeal arches, though the eventual fate of these arc ...es. References 1. "ZFIN: Anatomical Structure: Bulbus Arteriosus." ZFIN: The Zebrafish Model Organism Database. Web. 8 May 2011. . Fish anatomy {{fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperparasite
A hyperparasite, also known as a metaparasite, is a parasite whose host, often an insect, is also a parasite, often specifically a parasitoid. Hyperparasites are found mainly among the wasp-waisted Apocrita within the Hymenoptera, and in two other insect orders, the Diptera (true flies) and Coleoptera (beetles). Seventeen families in Hymenoptera and a few species of Diptera and Coleoptera are hyperparasitic. Hyperparasitism developed from primary parasitism, which evolved in the Jurassic period in the Hymenoptera. Hyperparasitism intrigues entomologists because of its multidisciplinary relationship to evolution, ecology, behavior, biological control, taxonomy, and mathematical models. Examples The most common examples are insects that lay their eggs inside or near parasitoid larvae, which are themselves parasitizing the tissues of a host, again usually an insect larva. A well-studied case is that of the small white butterfly (''Pieris rapae''), a serious horticultural pest of '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanternfish
Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represented by 246 species in 33 genera, and are found in oceans worldwide. Lanternfishes are aptly named after their conspicuous use of bioluminescence. Their sister family, the Neoscopelidae, are much fewer in number but superficially very similar; at least one neoscopelid shares the common name "lanternfish": the large-scaled lantern fish, '' Neoscopelus macrolepidotus''. Lanternfish are among the most widely distributed, diverse and populous vertebrates, with some estimates suggesting that they may have a total global biomass of 1.8 to 16 gigatonnes, accounting for up to 65% of all deep-sea fish biomass. Commercial fisheries for them exist off South Africa, in the sub-Antarctic, and in the Gulf of Oman. Description Lanternfish typically ha ... [...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] |
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] |
Crustaceans Of The Atlantic 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] |
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] |
