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Lineus Sanguineus
''Lineus sanguineus'', the banded nemertean or social lineus, is a species of nemertean ribbon worm in the family Lineidae. It occurs in the northeastern Atlantic Ocean as well as on both coasts of North America. It burrows in muddy sand from the mid-tidal zone downwards and conceals itself in crevices and under stones. Description ''Lineus sanguineus'' is an elongate worm with a slender body growing to a length of about . The head has the eversible proboscis typical of nemertean worms and four to six eyes on either side. In colour it varies from a bright reddish-brown to a more sombre medium brown, sometimes with up to twenty narrow paler bands, and the ventral part and the posterior portion are often paler than the rest of the body. It is very similar in appearance to '' Lineus ruber'', but the eyes are set further back on the head and are more neatly arranged. Unlike ''L. ruber'', when disturbed it coils up into a tangled ball, whereas ''L. ruber'' merely contracts, becoming s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lineidae
Lineidae is a family of nemertean worms. It contains the following genera: * '' Aetheolineus'' Senz, 1993 * '' Ammolineus'' Senz, 2001 * ''Antarctolineus'' Muller & Scripcariu, 1964 * ''Apatronemertes'' Wilfert & Gibson, 1974 * '' Australineus'' Gibson, 1990 * '' Cephalurichus'' Gibson, 1985 * '' Colemaniella'' Gibson, 1982 * '' Corsoua'' Corrêa, 1963 * '' Craticulineus'' Gibson, 1984 * ''Diplopleura'' Stimpson, 1857 * '' Eousia'' Gibson, 1990 * ''Euborlasia'' Vaillant, 1890 * '' Flaminga'' Corrêa, 1957 * '' Fragilonemertes'' Riser, 1998 * '' Gastropion'' Moretto, 1998 * '' Heteroenopleus'' Wern, 1998 * '' Heterolineus'' Friedrich, 1935 * '' Heteronemertes'' Chernyshev, 1995 * '' Hinumanemertes'' Iwata, 1970 * '' Kirsteueria'' Gibson, 1978 * '' Kohnia'' Sundberg & Gibson, 1995 * ''Leucocephalonemertes'' Cantell, 1996 * '' Lineopsella'' Friedrich, 1970 * '' Lineopselloides'' Gibson, 1990 * ''Lineopsis'' * ''Lineus ''Lineus'' is a genus of nemertine worms, including the boo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lineus Rube
''Lineus'' is a genus of nemertine worms, including the bootlace worm, arguably the longest animal alive. ''Lineus'' contains the following species: *''Lineus acutifrons'' Southern, 1913 *'' Lineus albifrons'' Coe, 1934 *''Lineus albocinctus'' Verrill, 1900 *''Lineus albonasus'' Verrill, 1900 *''Lineus alborostratus'' Takakura, 1898 *''Lineus albus'' *''Lineus alienus'' Bürger, 1895 *''Lineus anellatus'' *''Lineus angulosus'' Korotkevich, 1978 *''Lineus arenicola'' (Verrill, 1873) *''Lineus atradentis'' Korotkevich, 1978 *''Lineus atrocaeruleus'' (Schmarda, 1859) *'' Lineus auripunctatus'' (Grube, 1855) *''Lineus aurostriatus'' (Bürger, 1890) *''Lineus australis'' *''Lineus autrani'' Joubin, 1905 *'' Lineus bergendali'' Senz, 1996 *''Lineus bilineatus'' (Renier, 1804) *''Lineus binigrilinearis'' Gibson, 1990 *''Lineus bioculatus'' Sundberg & Gibson, 1995 *''Lineus bipunctatus'' Takakura, 1898 *''Lineus bonaerensis'' Moretto, 1971 *''Lineus boutani'' (Joubin, 1893) *''Lineus ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, covering . It hosts key north European shipping lanes and is a major fishery. The coast is a popular destination for recreation and tourism in bordering countries, and a rich source of energy resources, including wind and wave power. The North Sea has featured prominently in geopolitical and military affairs, particularly in Northern Europe, from the Middle Ages to the modern era. It was also important globally through the power northern Europeans projected worldwide during much of the Middle Ages and into the modern era. The North Sea was the centre of the Vikings' rise. The Hanseatic League, the Dutch Republic, and the British each sought to gain command of the North Sea and access t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Fundy
The Bay of Fundy (french: Baie de Fundy) is a bay between the Canadian provinces of New Brunswick and Nova Scotia, with a small portion touching the U.S. state of Maine. It is an arm of the Gulf of Maine. Its extremely high tidal range is the highest in the world. The name is likely a corruption of the French word , meaning 'split'. Hydrology Tides The tidal range in the Bay of Fundy is about ; the average tidal range worldwide is only . Some tides are higher than others, depending on the position of the moon, the sun, and atmospheric conditions. Tides are semidiurnal, meaning they have two highs and two lows each day, with about six hours and 13 minutes between each high and low tide. Because of tidal resonance in the funnel-shaped bay, the tides that flow through the channel are very powerful. In one 12-hour tidal cycle, about 100 billion tons (110 billion short tons) of water flows in and out of the bay, which is twice as much as the combined total flow of all the rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digdeguash, New Brunswick
Digdeguash is a Canadian unincorporated community in Charlotte County, New Brunswick. History Notable people See also *List of communities in New Brunswick This is a list of communities in New Brunswick, a province in Canada. For the purposes of this list, a community is defined as either an incorporated municipality, an Indian reserve, or an unincorporated community inside or outside a municipalit ... References Communities in Charlotte County, New Brunswick {{NewBrunswick-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Maine
The Gulf of Maine is a large gulf of the Atlantic Ocean on the east coast of North America. It is bounded by Cape Cod at the eastern tip of Massachusetts in the southwest and by Cape Sable Island at the southern tip of Nova Scotia in the northeast. The gulf includes the entire coastlines of the U.S. states of New Hampshire and Maine, as well as Massachusetts north of Cape Cod, and the southern and western coastlines of the provinces and territories of Canada, Canadian provinces of New Brunswick and Nova Scotia, respectively. The gulf was named for the adjoining English colonial Province of Maine, which was in turn likely named by early explorers after the Maine (province), province of Maine in France. Massachusetts Bay, Penobscot Bay, Passamaquoddy Bay, and the Bay of Fundy are all arms of the Gulf of Maine. Geography and hydrography The Gulf of Maine is a roughly rectangular depression with a surface area of around , enclosed to the west and north by the North American mainland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coralline Algae
Coralline algae are red algae in the order Corallinales. They are characterized by a thallus that is hard because of calcareous deposits contained within the cell walls. The colors of these algae are most typically pink, or some other shade of red, but some species can be purple, yellow, blue, white, or gray-green. Coralline algae play an important role in the ecology of coral reefs. Sea urchins, parrot fish, and limpets and chitons (both mollusks) feed on coralline algae. In the temperate Mediterranean Sea, coralline algae are the main builders of a typical algal reef, the ''Coralligène'' ("coralligenous"). Many are typically encrusting and rock-like, found in marine waters all over the world. Only one species lives in freshwater. Unattached specimens ( maerl, rhodoliths) may form relatively smooth compact balls to warty or fruticose thalli. A close look at almost any intertidal rocky shore or coral reef will reveal an abundance of pink to pinkish-grey patches, distributed throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detritivore
Detritivores (also known as detrivores, detritophages, detritus feeders, or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, vertebrates and plants that carry out coprophagy. By doing so, all these detritivores contribute to decomposition and the nutrient cycles. They should be distinguished from other decomposers, such as many species of bacteria, fungi and protists, which are unable to ingest discrete lumps of matter, but instead live by absorbing and metabolizing on a molecular scale (saprotrophic nutrition). The terms ''detritivore'' and ''decomposer'' are often used interchangeably, but they describe different organisms. Detritivores are usually arthropods and help in the process of remineralization. Detritivores perform the first stage of remineralization, by fragmenting the dead plant matter, allowing decomposers to perform the second stage of reminerali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asexual Reproduction
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent and thus the newly created individual is genetically and physically similar to the parent or an exact clone of the parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and eubacteria, bacteria. Many Eukaryote, eukaryotic organisms including plants, animals, and Fungus, fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis, which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. Komodo dragons and some monitor lizards can also reproduce asexually. While all prokaryotes reproduce without the formation and fusion of gametes, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
