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Aeolosoma Markewitschi
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi'' * ''Aeolosoma headleyi'' * ''Aeolosoma hemprichi'' * ''Aeolosoma leidyi'' * ''Aeolosoma niveum'' * ''Aeolosoma tenebrarum'' * ''Aeolosoma varieg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Gottfried Ehrenberg
Christian Gottfried Ehrenberg (19 April 1795 – 27 June 1876) was a German naturalist, zoologist, comparative anatomist, geologist, and microscopist. Ehrenberg was an evangelist and was considered to be of the most famous and productive scientists of his time. Early collections The son of a judge, Christian Gottfried Ehrenberg was born in Delitzsch, near Leipzig. He first studied theology at the University of Leipzig, then medicine and natural sciences in Berlin and became a friend of the famous explorer Alexander von Humboldt. In 1818, he completed his doctoral dissertation on fungi, ''Sylvae mycologicae Berolinenses.'' In 1820–1825, on a scientific expedition to the Middle East with his friend Wilhelm Hemprich, he collected thousands of specimens of plants and animals. He investigated parts of Egypt, the Libyan Desert, the Nile valley and the northern coasts of the Red Sea, where he made a special study of the corals. Subsequently, parts of Syria, Arabia and Abyss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelid
The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The Annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of polycha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligochaete
Oligochaeta () is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms. Specifically, oligochaetes comprise the terrestrial megadrile earthworms (some of which are semiaquatic or fully aquatic), and freshwater or semiterrestrial microdrile forms, including the tubificids, pot worms and ice worms (Enchytraeidae), blackworms (Lumbriculidae) and several interstitial marine worms. With around 10,000 known species, the Oligochaeta make up about half of the phylum Annelida. These worms usually have few setae (chaetae) or "bristles" on their outer body surfaces, and lack parapodia, unlike polychaeta. Diversity Oligochaetes are well-segmented worms and most have a spacious body cavity (coelom) used as a hydroskeleton. They range in length from less than up to in the 'giant' species such as the giant Gippsland earthworm (''Megascolides australis'') and the Mekong worm (''Amynthas meko ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychaete
Polychaeta () is a paraphyletic class (biology), class of generally marine invertebrate, marine annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species are described in this class. Common representatives include the lugworm (''Arenicola marina'') and the Alitta virens, sandworm or Alitta succinea, clam worm ''Alitta''. Polychaetes as a class are robust and widespread, with species that live in the coldest ocean temperatures of the abyssal plain, to forms which tolerate the extremely high temperatures near hydrothermal vents. Polychaetes occur throughout the Earth's oceans at all depths, from forms that live as plankton near the surface, to a 2- to 3-cm specimen (still unclassified) observed by the robot ocean probe Nereus (underwater vehicle), ''Nereus'' at the bottom of the Challenger Deep, the deepes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater
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. Fresh wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Beddardi
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater 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 ... environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Headleyi
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi ''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they resid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Hemprichi
''Aeolosoma hemprichi'' is an aquatic annelid The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecol ... and the smallest known species of the family Aeolosomatidae. It is usually found in freshwater environments in various parts of the world. References Annelids Freshwater animals {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Leidyi
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi'' * ''Aeolosoma headleyi'' * ''Aeolosoma hemprichi ''Aeolosoma hemprichi'' is an aquatic annelid The annelids (Annelida , from Latin ', "li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Niveum
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi'' * ''Aeolosoma headleyi'' * ''Aeolosoma hemprichi'' * ''Aeolosoma leidyi ''Aeolosoma'' is a genus of minute annelid worms, variously attributed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Tenebrarum
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi'' * ''Aeolosoma headleyi'' * ''Aeolosoma hemprichi'' * ''Aeolosoma leidyi'' * ''Aeolosoma niveum ''Aeolosoma'' is a genus of minute annelid worms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolosoma Variegatum
''Aeolosoma'' is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. ''Aeolosoma'' are transparent worms, very thin and of the length of 1.5–2 mm. They usually reproduce asexually. This is done by paratomy (fragmentation), when the posterior segments are separated from the parent worm. It starts when the worm reaches a certain number of millimeters (depending on the species). Only one species, ''Aeolosoma singulare'', is known to reproduce sexually. ''Aeolosoma'' feed on microalgae, microorganisms and detritus. Their mouth acts like a small vacuum cleaner, which helps them suck up their food into their system. Species Below is a list of species of the ''Aeolosoma'' genus: * ''Aeolosoma beddardi'' * ''Aeolosoma headleyi'' * ''Aeolosoma hemprichi'' * ''Aeolosoma leidyi'' * ''Aeolosoma niveum'' * ''Aeolosoma tenebrarum ''Aeolosoma'' is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
