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Peniculus Minuticaudae
''Peniculus minuticaudae'' is a species of fish parasites, parasitic Pennellidae, pennellid copepod. It is known from the northeast Pacific Ocean. It was originally species description, described in 1956, redescribed in 2012, and its complete life cycle has been elucidated on the cultured threadsail filefish, ''Stephanolepis cirrhifer'' in 2013. References Siphonostomatoida Crustaceans of the Pacific Ocean Crustaceans described in 1956 {{copepod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Parasites
Like humans and other animals, fish suffer from diseases and parasites. Fish defences against disease are specific and non-specific. Non-specific defences include skin and scales, as well as the mucus layer secreted by the epidermis that traps microorganisms and inhibits their growth. If pathogens breach these defences, fish can develop inflammatory responses that increase the flow of blood to infected areas and deliver white blood cells that attempt to destroy the pathogens. Specific defences are specialised responses to particular pathogens recognised by the fish's body, that is adaptative immune responses. In recent years, vaccines have become widely used in aquaculture and ornamental fish, for example vaccines for commercial food fishes like Aeromonas salmonicida, furunculosis in salmon and Lactococcosis\Streptococcosis in farmed grey mullet, Tilapia and koi herpes virus in koi. Some commercially important fish diseases are VHS, ICH, and whirling disease. Parasites ... [...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 ''Pennella'' is a genus of large copepods which are common parasites of large pelagic fishes. They begin their life cycle as a series of free-swimming planktonic larvae. The females metamorpho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copepod
Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic (inhabiting sea waters), some are benthic (living on the ocean floor), a number of species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, and puddles, damp moss, or water-filled recesses (phytotelmata) of plants such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as biodiversity indicators. As with other crustaceans, copepods have a larval form. For copepods, the egg hatches into a nauplius form, with a head and a tail but no true thorax or abdomen. The larva molts several times until it resembles the adult and then, after more molts, achieves adult development. The nauplius form is so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephanolepis Cirrhifer
''Stephanolepis cirrhifer'', commonly known as the thread-sail filefish, is a species of marine fish in the family Monacanthidae. It is found in the western Pacific, in an area that ranges from northern Japan to the East China Sea, to Korea. Other common names for the fish include (Japanese) and “쥐치” "Jwi-chi" (Korean). The fish grows to a maximum length of about , and consumes both plant material and small marine organisms like skeleton shrimp. ''S. cirrhifer'' is host of the parasite '' Peniculus minuticaudae''. Some minor genetic differentiation between ''S. cirrhifer'' born in the wild and those bred in a hatchery for consumer use has been shown. The fish is edible and sold commercially for culinary purposes in many Asian countries. Taxonomy The fish was first described in 1850 by Coenraad Jacob Temminck and Hermann Schlegel, when it was observed along with other fauna off the coasts of Japan. They initially placed it in the genus ''Monacanthus'', as ... [...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-Edwa ... [...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 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
