Seine

The Seine (/seɪn/ SAYN; French: La Seine, pronounced: [la sɛːn]) is a 776-kilometre (482 mi) long river and an important commercial waterway within the Paris Basin in the north of France. It rises at Source-Seine, 30 kilometres (19 mi) northwest of Dijon in northeastern France in the Langres plateau, flowing through Paris and into the English Channel at Le Havre (and Honfleur on the left bank). It is navigable by ocean-going vessels as far as Rouen, 120 kilometres (75 mi) from the sea. Over 60 percent of its length, as far as Burgundy, is negotiable by commercial riverboats and nearly its whole length is available for recreational boating; excursion boats offer sightseeing tours of the Rive Droite and Rive Gauche within the city of Paris.

There are 37 bridges within Paris and dozens more spanning the river outside the city. Examples in Paris include the Pont Louis-Philippe and Pont Neuf, the latter of which dates back to 1607. Outside the city, examples include the Pont de Normandie, one of the longest cable-stayed bridges in the world, which links Le Havre to Honfleur.

Paris

Paris (UK: /ˈpærɪs/ PARR-iss; US: ⁱ/ˈpɛərɪs/ PAIR-iss; French: [paʁi]) is the capital and most populous city of France. Situated on the Seine River, in the north of the country, it is in the centre of the Île-de-France region, also known as the région parisienne, "Paris Region". The City of Paris has an area of 105 km² (41 mi²) and a population of 2,241,346 (2014 estimate) within its administrative borders essentially unchanged since 1860.

Since the 19th century, the built-up area of Paris has grown far beyond its administrative borders; together with its suburbs, the whole agglomeration has a population of 10,550,350 (Jan. 2012 census).Paris' metropolitan area spans most of the Paris region and has a population of 12,341,418 (Jan. 2012 census), or one-fifth of the population of France. The administrative region covers 12,012 km² (4,638 mi²), with approximately 12 million inhabitants as of 2014, and has its own regional council and president.

Paris was founded in the 3rd century BC by a Celtic people called the Parisii, who gave the city its name. By the 12th century, Paris was the largest city in the western world, a prosperous trading centre, and the home of the University of Paris, one of the first in Europe. In the 18th century, it was the centre stage for the French Revolution, and became an important centre of finance, commerce, fashion, science, and the arts, a position it still retains today.

River

A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague.

Rivers are part of the hydrological cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, and the release of stored water in natural ice and snowpacks (e.g. from glaciers). Potamology is the scientific study of rivers while limnology is the study of inland waters in general.

Colpomenia sinuosa

Colpomenia sinuosa, the oyster thief or sinuous ballweed, is a brown alga species in the genus Colpomenia. It is the type species of its genus. It is found throughout South Africa and is widespread around Australia and overseas.

C. sinuosa contains the C6-C4-C6 phenolic compound colpol.

See also

References

Future Readings

Lee, Kyung Min; Boo, Sung Min; Kain, Joanna; Sherwood, Alison (February 2013). "Cryptic diversity and biogeography of the widespread brown alga Colpomenia sinuosa (Ectocarpales, Phaeophyceae)". Botanica Marina 56 (1): 15–25. doi:10.1515/bot-2012-0211.  |access-date= requires |url= (help)

External links

Colpomenia sinuosa at the Encyclopedia of Life

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