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Nothobranchius Sainthousei
''Nothobranchius sainthousei'' is a species of brightly red- and blue colored seasonal killifish in the family Nothobranchiidae. It is endemic to freshwater habitats in the Chembe district of the Luapula Province in northern Zambia. Nagy, B., Cotterill, F.P.D. & Bellstedt, D.U. (2016)''Nothobranchius sainthousei'', a new species of annual killifish from the Luapula River drainage in northern Zambia (Teleostei: Cyprinodontiformes).''Ichthyological Exploration of Freshwaters'', 27 (3): 233–254, Figs. 3–6.'' It was named in honour of Ian Sainthouse, a "renowned breeder and collector of killifish, for his special longstanding dedication to researches on the genus ''Nothobranchius''". Description and habitat Males grow up to about 41 millimetres of standard length (i.e. body length excluding caudal fin) and females circa 30 mm. The species is an annual killifish. They inhabit ephemeral pools filled by rainwater during the monsoon season, being adapted to the alteration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Béla Nagy (ichthyologist)
Béla Nagy, a Hungarian independent researcher, specialized in the seasonal killifish genus ''Nothobranchius'', as well as members of the family Procatopodidae within the order Cyprinodontiformes. Taxon names authored * ''Lacustricola margaritatus'' , 2022Béla Nagy (ichthyologist), Nagy, B. & Watters, B.R. (2022) ''Lacustricola margaritatus'', a new species of lampeye from the Lake Victoria and Lake Kyoga basins in eastern Africa (Cyprinodontiformes: Procatopodidae). ''Zootaxa'', 5128 (1): 44–60. * ''Lacustricola nitidus'' , 2020Béla Nagy (ichthyologist), Nagy, B. & Chocha Manda, A. (2020) ''Lacustricola nitida'', a new species of lampeye from the upper Lualaba drainage, Democratic Republic of Congo (Teleostei: Cyprinodontiformes: Procatopodidae). '' Ichthyological Exploration of Freshwaters'', 30 (3): 201–211. * ''Lacustricola petnehazyi'' , 2018)Béla Nagy (ichthyologist), Nagy, B. & Vreven, E. (2018) ''Micropanchax petnehazyi'', a new species of lampeye cyprinodontifor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chorion
The chorion is the outermost fetal membrane around the embryo in mammals, birds and reptiles ( amniotes). It develops from an outer fold on the surface of the yolk sac, which lies outside the zona pellucida (in mammals), known as the vitelline membrane in other animals. In insects it is developed by the follicle cells while the egg is in the ovary.Chapman, R.F. (1998) "The insects: structure and function", Section ''The egg and embryology''. Previewed in Google Bookon 26 Sep 2009. Structure In humans and other mammals (excluding monotremes), the chorion is one of the fetal membranes that exist during pregnancy between the developing fetus and mother. The chorion and the amnion together form the amniotic sac. In humans it is formed by extraembryonic mesoderm and the two layers of trophoblast that surround the embryo and other membranes; the chorionic villi emerge from the chorion, invade the endometrium, and allow the transfer of nutrients from maternal blood to fetal bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Zambia
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypoxia In Fish
Fish are exposed to large oxygen fluctuations in their aquatic environment since the inherent properties of water can result in marked spatial and temporal differences in the concentration of oxygen (see oxygenation and underwater). Fish respond to hypoxia with varied behavioral, physiological, and cellular responses to maintain homeostasis and organism function in an oxygen-depleted environment. The biggest challenge fish face when exposed to low oxygen conditions is maintaining metabolic energy balance, as 95% of the oxygen consumed by fish is used for ATP production releasing the chemical energy of nutrients through the mitochondrial electron transport chain. Therefore, hypoxia survival requires a coordinated response to secure more oxygen from the depleted environment and counteract the metabolic consequences of decreased ATP production at the mitochondria. This article is a review of the effects of hypoxia on all aspects of fish, ranging from behavior down to genes. Hypoxia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratype
In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype). Often there is more than one paratype. Paratypes are usually held in museum research collections. The exact meaning of the term ''paratype'' when it is used in zoology is not the same as the meaning when it is used in botany. In both cases however, this term is used in conjunction with ''holotype''. Zoology In zoological nomenclature, a paratype is officially defined as "Each specimen of a type series other than the holotype.", ''International Code of Zoological Nomenclature'' In turn, this definition relies on the definition of a "type series". A type series is the material (specimens of organisms) that was cited in the original publication of the new species or subspecies, and was not excluded from being type material by the author (t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyology
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish ( Agnatha). According to FishBase, 33,400 species of fish had been described as of October 2016, with approximately 250 new species described each year. Etymology The word is derived from the Greek words ἰχθύς, ''ikhthus'', meaning "fish"; and λογία, ''logia'', meaning "to study". History The study of fish dates from the Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements. The study of fish receives its origins from humans' desire to feed, clothe, and equip themselves with useful implements. According to Michael Barton, a prominent ichthyologist and professor at Centre College, "the earliest ichthyologists were '' hunters and gatherers'' who had learned how to obtain the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Museum For Central Africa
The Royal Museum for Central Africa or RMCA ( nl, Koninklijk Museum voor Midden-Afrika or KMMA; french: Musée royal de l'Afrique centrale or MRAC; german: Königliches Museum für Zentralafrika or KMZA), also officially known as the AfricaMuseum, is an ethnography and natural history museum situated in Tervuren in Flemish Brabant, Belgium, just outside Brussels. It was built to showcase King Leopold II's Congo Free State in the International Exposition of 1897. The museum focuses on the Congo, a former Belgian colony. The sphere of interest, however, especially in biological research, extends to the whole Congo River basin, Middle Africa, East Africa, and West Africa, attempting to integrate "Africa" as a whole. Intended originally as a colonial museum, from 1960 onwards it has focused more on ethnography and anthropology. Like most museums, it houses a research department in addition to its public exhibit department. Not all research pertains to Africa (e.g. research o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Specimen
A biological specimen (also called a biospecimen) is a biological laboratory specimen held by a biorepository for research. Such a specimen would be taken by sampling so as to be representative of any other specimen taken from the source of the specimen. When biological specimens are stored, ideally they remain equivalent to freshly-collected specimens for the purposes of research. Human biological specimens are stored in a type of biorepository called a biobank, and the science of preserving biological specimens is most active in the field of biobanking. Quality control Setting broad standards for quality of biological specimens was initially an underdeveloped aspect of biobank growth. There is currently discussion on what standards should be in place and who should manage those standards. Since many organizations set their own standards and since biobanks are necessarily used by multiple organizations and typically are driven towards expansion, the harmonization of stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessaril ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luapula River
The Luapula River is a section of Africa's second-longest river, the Congo. It is a transnational river forming for nearly all its length part of the border between Zambia and the DR Congo. It joins Lake Bangweulu (wholly in Zambia) to Lake Mweru (shared between the two countries) and gives its name to the Luapula Province of Zambia.Terracarta/International Travel Maps, Vancouver Canada: "Zambia, 2nd edition", 2000 Source and upper Luapula The Luapula drains Lake Bangweulu and its swamps into which flows the Chambeshi River, the source of the Congo. There is no single clear channel connecting the two rivers and the lake, but a mass of shifting channels, lagoons and swamps, as the explorer David Livingstone found to his cost. (He died exploring the area, and one of his last acts was to question Chief Chitambo about the course of the Luapula.)Blaikie, William Garden (1880): ''The Personal Life Of David Livingstone''Project Gutenberg Ebook #13262 release date: August 23, 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luongo River
Luongo is a surname. Notable people with the surname include: * Alfred Leopold Luongo, a former United States federal judge * Chris Luongo, American former ice hockey player for the Detroit Red Wings * Gerald Luongo, American Republican Party politician * Massimo Luongo (1992–), Australian national football team and Queens Park Rangers player * Roberto Luongo, Canadian ice hockey goaltender for the Florida Panthers See also * Lungo, a type of coffee beverage prepared by making espresso with much more water * Longo Longo is a surname. Notable people with the surname include: *Alessandro Longo (1864–1945), Italian composer and musicologist * Andrea Longo (other), multiple people *Annalie Longo (born 1991), New Zealand women's football player * Anton ..., a surname {{surname Italian-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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