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Sauvagella
''Sauvagella'' is a genus of small fresh and brackish water fish in the family Clupeidae. There are currently two species, both of which are endemic to Madagascar.Stiassny, M.L.J. (2002). ''Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of Ehiravini.'' Copeia 2002(1): 67-76 Species * '' Sauvagella madagascariensis'' ( Sauvage, 1883) (Madagascar round herring) * ''Sauvagella robusta ''Sauvagella robusta'' is a small species of fish in the family Clupeidae. It is endemic to the Amboaboa and Mangarahara River Basins in northern Madagascar.Stiassny, M.L.J. (2002). ''Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehir ...'' Stiassny, 2002 References * Clupeidae Freshwater fish genera Taxa named by Léon Bertin Taxonomy articles created by Polbot {{Clupeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauvagella Robusta
''Sauvagella robusta'' is a small species of fish in the family Clupeidae. It is endemic to the Amboaboa and Mangarahara River Basins in northern Madagascar.Stiassny, M.L.J. (2002). ''Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of Ehiravini.'' Copeia 2002(1): 67-76. This relatively slender fish reaches a length of , and is overall pale yellowish with silvery on the lower parts. Its current conservation status is unclear, but the cichlid ''Ptychochromis insolitus'', which is highly threatened from habitat loss, is native to the same region. ''Sauvagella robusta'' is known to survive at least in Lake Tseny A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ....IUCN, Freshwater Fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauvagella
''Sauvagella'' is a genus of small fresh and brackish water fish in the family Clupeidae. There are currently two species, both of which are endemic to Madagascar.Stiassny, M.L.J. (2002). ''Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of Ehiravini.'' Copeia 2002(1): 67-76 Species * '' Sauvagella madagascariensis'' ( Sauvage, 1883) (Madagascar round herring) * ''Sauvagella robusta ''Sauvagella robusta'' is a small species of fish in the family Clupeidae. It is endemic to the Amboaboa and Mangarahara River Basins in northern Madagascar.Stiassny, M.L.J. (2002). ''Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehir ...'' Stiassny, 2002 References * Clupeidae Freshwater fish genera Taxa named by Léon Bertin Taxonomy articles created by Polbot {{Clupeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauvagella Madagascariensis
''Sauvagella madagascariensis'' is a small species of fish in the family Clupeidae. It is endemic to fresh and brackish water in rivers of eastern Madagascar, ranging from the Mananjary Mananjary is a city located in Vatovavy, Madagascar with a population of 25,222 inhabitants in 2018. It is the chief city of the Mananjary district. It contains a town of the same name, situated on the southern part of the east coast, where the M ... to the Mananara.Stiassny, M.L.J. (2002). Revision of Sauvagella Bertin (Clupeidae: Pellonulinae: Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of Ehiravini. Copeia 2002(1): 67-76 This relatively slender fish reaches a length of , and is usually pale yellow with silvery on the flanks and head, though some larger individuals are more strongly coloured with orange or red. References Sauvagella Freshwater fish of Madagascar Taxonomy articles created by Polbot Fish described in 1883 {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clupeidae
Clupeidae is a family of ray-finned fishes, comprising, for instance, the herrings, shads, sardines, hilsa, and menhadens. The clupeoids include many of the most important food fishes in the world, and are also commonly caught for production of fish oil and fish meal. Many members of the family have a body protected with shiny cycloid (very smooth and uniform) scales, a single dorsal fin, and a fusiform body for quick, evasive swimming and pursuit of prey composed of small planktonic animals. Due to their small size and position in the lower trophic level of many marine food webs, the levels of methylmercury they bioaccumulate are very low, reducing the risk of mercury poisoning when consumed. Description and biology Clupeids are mostly marine forage fish, although a few species are found in fresh water. No species has scales on the head, and some are entirely scaleless. The lateral line is short or absent, and the teeth are unusually small where they are present at all. Clupe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
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 echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa across the Mozambique Channel. At Madagascar is the world's List of island countries, second-largest island country, after Indonesia. The nation is home to around 30 million inhabitants and consists of the island of Geography of Madagascar, Madagascar (the List of islands by area, fourth-largest island in the world), along with numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 90 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of wildlife of Madagascar, its wildlife is endemic. Human settlement of Madagascar occurred during or befo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Genera
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanie L
Melanie is a feminine given name derived from the Greek μελανία (melania), "blackness" and that from μέλας (melas), meaning "dark". at Perseus project Borne in its Latin form by two saints, and her granddaughter ,Behind the Name< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Émile Sauvage
Henri Émile Sauvage (22 September 1842 in Boulogne-sur-Mer – 3 January 1917 in Boulogne-sur-Mer) was a French paleontologist, ichthyologist, and herpetologist. He was a leading expert on Mesozoic fish and reptiles.Dinosaurs and Other Extinct Saurians: A Historical Perspective edited by Richard Moody He worked as a curator at the Muséum d'Histoire Naturelle in , and published extensively on |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chordata
A chordate () is an animal of the phylum Chordata (). All chordates possess, at some point during their larval or adult stages, five synapomorphies, or primary physical characteristics, that distinguish them from all the other taxa. These five synapomorphies include a notochord, dorsal hollow nerve cord, endostyle or thyroid, pharyngeal slits, and a post-anal tail. The name “chordate” comes from the first of these synapomorphies, the notochord, which plays a significant role in chordate structure and movement. Chordates are also Bilateral symmetry, bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit Metameric, metameric segmentation. In addition to the morphological characteristics used to define chordates, analysis of genome sequences has identified two conserved signature indels (CSIs) in their proteins: cyclophilin-like protein and mitochondrial inner membrane protease ATP23, which are exclusively shared by all vertebrates, tunicates and cep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
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. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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