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Depressed River Mussel
The depressed river mussel or compressed river mussel, ''Pseudanodonta complanata'', is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. The species name comes from the flattened shape of its shell. This species is found throughout northern Europe, but it is endangered throughout its range. While the survival of this species is thought to be threatened by pollution and the dredging Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ... of the slow-moving channels of water in which it lives, the species is also said to be "easily overlooked" (it can be confused with '' Anodonta anatina'' or juvenile '' Anodonta cygnea'') and thus it may be actually be more prevalent than current records show. Distribution Its native distri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emil Adolf Rossmässler
Emil Adolf Rossmässler (''Emil Adolf Roßmäßler'', ''Emil Adolph Roßmäßler'') (March 3, 1806 in Leipzig – April 8, 1867 in Leipzig) was a German biologist. With Otto Eduard Vincenz Ule and Karl Johann August Müller, he was co-founder of the journal ''Die Natur'' in 1852 and 1859 the sole editor of the journal ''Aus der Heimath''. Andreas Daum, "Emil Adolf Roβmäβler", ''Neue Deutsche Biographie'', ed. Bayerische Akademie der Wissenschaften. Vol. 22, Berlin: Duncker & Humblot, 2005, 95–96. Rossmässler was a pioneer and the leading advocate of popularizing science in nineteenth-century Germany. He also belonged to the early writers on the building and maintaining of freshwater aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ...s. Publications * 1832: ''System ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollution
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Although environmental pollution can be caused by natural events, the word pollution generally implies that the contaminants have an anthropogenic source – that is, a source created by human activities. Pollution is often classed as point source or nonpoint source pollution. In 2015, pollution killed nine million people worldwide (one in six deaths). This remained unchanged in 2019, with little real progress against pollution being identifiable. Air pollution accounted for of these earlier deaths. Major forms of pollution include air pollution, light pollution, litter, noise pollution, plastic pollution, soil contamination, radioactiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Animals Of Europe
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Endangered Species In The British Isles
This is a list of United Kingdom Biodiversity Action Plan species. Some suffer because of loss of habitat, but many are in decline following the introduction of foreign species, which out-compete the native species or carry disease. See also the list of extinct animals of the British Isles. This list includes the 116 species identified as requiring action plans in the Biodiversity Steering Group's report of December 1995. Mammals *Scottish wildcat (''Felis silvestris grampia'') *Bottlenose dolphin (''Tursiops truncatus''), warm and temperate seas worldwide * European (brown) hare (''Lepus europaeus''), northern, central, and western Europe and western Asia *Hazel dormouse (''Muscardinus avellanarius''), northern Europe and Asia Minor *European otter (''Lutra lutra lutra''), Asia, Africa and Europe *Greater horseshoe bat (''Rhinolophus ferrumequinium''), Europe, Africa, South Asia and Australia *Harbour porpoise (''Phocoena phocoena''), coastal waters in the Northern Hemisphere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Slovakia
Slovakia is a land-locked country, and therefore the molluscs of Slovakia are all land and freshwater species. There are 247 Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. ''Malacologica Bohemoslovaca'', Suppl. 1: 1-37PDF species of molluscs living in the wild in Slovakia. In addition there are 9 gastropod species living only in greenhouses. There are a total of 219 species of gastropods, which breaks down to 51 species of freshwater gastropods, and 168 species of land gastropods, plus 28 species of bivalves living in the wild. There are 8 non-indigenous gastropod species (3 freshwater and 5 land species) and 3 species of bivalves in the wild in Slovakia. This is a total of 6 freshwater non-indigenous species of wild molluscs. ;Summary table of number of species There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundesartenschutzverordnung
The Federal Species Protection Regulations, first adopted on 19 December 1986, is a set of federal regulations in Germany. These regulations protect wild plants and animals. They are the implementing rules promulgated by the government to give force to the Federal Nature Conservation Act which passed on 1 January 1977. With the passage of new legislation, it became necessary to update the regulations. The current version of these laws dates from 16 February 2005. Annex 1 of these regulations lists the protected plants and animals. The protected species should not be confused with the Red Lists of animal and plant species in danger of extinction Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and .... References Wildlife law Nature conservation in Germany Law of Germany 1986 in law ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malacologica Bohemoslovaca
''Malacologica Bohemoslovaca'' is a peer-reviewed open access scientific journal covering all aspects of malacology. It was published by the Slovak Academy of Sciences since 2005. It is published by the Department of Botany and Zoology, Faculty of Science, Masaryk University since 2021. The editor-in-chief is Lucie Juřičková (Charles University in Prague). Articles are published in Czech, Slovak or English, with an abstract in English. The journal is abstracted and indexed in The Zoological Record ''The Zoological Record'' (''ZR'') is an electronic index of zoological literature that also serves as the unofficial register of scientific names in zoology. It was started as a print publication in 1864 by the Zoological Society of London, a .... References External links * Malacology journals Multilingual journals Publications established in 2002 Creative Commons Attribution-licensed journals Academic journals published by learned and professional societies Acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of The Czech Republic
This is a list of the non-marine molluscs of the Czech Republic. That country is land-locked and therefore it has no marine molluscs, only land and freshwater species, including snails, slugs, freshwater clams and freshwater mussels. There are 247 species of molluscs living in the wild in the Czech Republic. In addition there are at least 11 gastropod species surviving in greenhouses. There are 219 gastropod species (50 freshwater and 169 land species) and 28 bivalve species living in the wild. There are also 11 introduced gastropod species (5 freshwater and 7 land species) and 4 bivalve species living in the wild in the Czech Republic. This is a total of 9 freshwater non-indigenous species living in natural habitats. ;Summary table of number of species There are 2 endemic species of molluscs in the Czech Republic: *'' Alzoniella slovenica'' in Moravia (and in Slovakia too) *'' Bulgarica nitidosa'' in Bohemia. History Historical lists from 19th century or overviews of Czec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anodonta Cygnea
The swan mussel, ''Anodonta cygnea'', is a large species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. Because of its morphological variability and its wide range of distribution, there are over 500 synonyms A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ... for this species. Shell description The shell is thin but large (approximately 10 to 20 cm) and rather flat, even at the umbo. The shell color is often pale greenish or brownish. It differs from '' Anodonta anatina'' in being larger shell with straighter, more parallel dorsal and ventral margins; the growth lines of the inner, oldest part of the shell are finer and shallower, and reach the margin. Distribution Its native distribution is European-Siberian. The geograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anodonta Anatina
''Anodonta'' is a genus of freshwater mussels in the family Unionidae, the river mussels. Species Species in this genus include: * ''Anodonta anatina'' Linné, 1758 – duck mussel * '' Anodonta beringiana'' Middendorff, 1851 – Yukon floater * '' Anodonta californiensis'' I. Lea, 1852 – California floater * '' Anodonta cataracta'' Say, 1817 – eastern floater * '' Anodonta couperiana'' I. Lea, 1840 – barrel floater * ''Anodonta cygnea'' Linné, 1758 – swan mussel * ''Anodonta dejecta'' Lewis, 1875 – woebegone floater * '' Anodonta gibbosa'' Say, 1824 * '' Anodonta hartfieldorum'' * '' Anodonta heardi'' M. E. Gordon and Hoeh, 1995 – Apalachicola floater * '' Anodonta imbecillis'' Say, 1829 synonym ''Utterbackia imbecillis'' * '' Anodonta implicata'' Say, 1829 – alewife floater * '' Anodonta kennerlyi'' I. Lea, 1860 – western floater * '' Anodonta nuttalliana'' Lea, 1838 – winged floater * '' Anodonta oregonensis'' I. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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