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Topic: Negro River

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Blackwater River

Rio Negro

Amazon River

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Branco River

Casiquiare canal

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River Thames

Orinoco

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	Negro - Wikipedia, the free encyclopedia
		Negro means "fl" in both Spanish and Portuguese languages, being derived from the Latin word niger of the same meaning.
		From the 18th century to the mid-20th century, "negro" (later capitalized) was considered the correct and proper term for African Americans.
		In current English language usage, "Negro" generally is considered acceptable in a historical context or in the name of older organizations, as in the United Negro College Fund, and is used more commonly by those born before the post World War II baby boom.
	en.wikipedia.org /wiki/Negro (1119 words)

	Amazon River - Wikipedia, the free encyclopedia
		The main river (which is usually between one and six miles wide) is navigable for large ocean steamers to Manaus, almost 800 miles upriver from the mouth.
		The rise of the Negro branch is not synchronous; the rainy season does not commence in its valley until February or March.
		Along with the Orinoco, the river is one of the main habitats of the Boto, also known as the Amazon River Dolphin.
	en.wikipedia.org /wiki/Amazon_River (2999 words)

	Negro River (Site not responding. Last check: 2007-10-21)
		The Negro (Spanish: fl) River, the great northern tributary of the Amazon River, has its sources along the watershed between the Orinoco and the Amazon basins, and also connects with the Orinoco by way of the Casiquiare canal.
		Its main affluent is the Vaupés, which disputes with the headwaters of the Guaviare branch of the Orinoco the drainage of the eastern slope of the "Oriental", Andes of Colombia.
		"Black River", as the name of the river means in Spanish, is a misnomer; though dark, the water is actually a similar colour to clear tea.
	pedia.newsfilter.co.uk /wikipedia/n/ne/negro_river.html (203 words)

	River Types
		Because whitewater rivers are often fed by a large number of acidic tributaries, they are relatively soft in terms of water hardness due to their relatively low mineral content and have a slightly acidic to neutral pH (6.3-7.0).
		For this reason, flwater rivers are considered some of the cleanest natural waters in the world, most often compared to "slightly contaminated distilled water." The water chemistry of flwater also inhibits the proliferation of insect larvae, so the forest around flwater tends to be less "buggy" in terms of floor-dwelling mosquitoes.
		Because flwater rivers are directly fed by run-off from surrounding rainforest, the soils of which are generally nutrient-deficient, flwater rivers are nutrient poor, and the surrounding floodplain areas are less suitable for cultivation than the floodplains of larger whitewater rivers like the Amazon.
	www.mongabay.com /0602.htm (1178 words)

	Jungletrekker.com
		The Negro River is the largest tributary of the mighty Amazon, and the second largest river in the world in terms of water discharge.
		The Negro is home to a majority of the remaining indigenous groups living in the Brazilian Amazon region, and to many small river communities made up of the mixing between native Indians, early European settlers, Northeastern Brazilians, and more recent immigrants from all parts of the world.
		This is a river free of dams and bridges, and a giant with sandbars, islands, and rocky formations.
	www.dtvisions.com /jungletrekker/english/about_rionegro.html (337 words)

	Chapter 6. MIGRATORY FISHES OF THE BRAZILIAN AMAZON: Centro Internacional de Investigaciones para el Desarrollo
		The Tocantins River is geographically classified by the IBGE (Brazilian Institute of Geography and Statistics) as an independent basin, but since its fish fauna is very similar to that of the Amazon, we consider it here as part of the Amazon Basin.
		Large rivers are characteristic of the Amazon Basin, but they owe their flow and chemical load to a dense network of streams and small rivers.
		Rivers with high sediment load and high alkalinity, such as classes 3 and 4 in Table 1, have higher concentrations of nitrogen and soluble reactive phosphorus than rivers that drain the tertiary and siliceous sediments (fl and clear water or classes 1 and 2).
	www.idrc.ca /es/ev-58882-201-1-DO_TOPIC.html (6859 words)

	Negro River - Encyclopedia, History, Geography and Biography
		The Negro (Spanish: fl) River, the great northern tributary of the Amazon River and the largest flwater river in the world, has its sources along the watershed between the Orinoco and the Amazon basins, and also connects with the Orinoco by way of the Casiquiare canal.
		Its main affluent is the Vaupés River, which disputes with the headwaters of the Guaviare branch of the Orinoco River the drainage of the eastern slope of the "Oriental", Andes of Colombia.
		There is another river called Río Negro in Argentina.
	www.arikah.com /encyclopedia/Rio_Negro (287 words)

	<< BRAZILIAN EMBASSY in KUWAIT -- The Unusual Green Paradise : The Amazon >>
		The São Francisco and Paraná rivers are the main plateau rivers.
		River navigation is feasible on the Tocantins, Araguaia and Guaporé rivers and also on the Paraguay, Paraná rivers and some of their tributaries.
		River navigation on this region is of greater importance when compared with some rivers of the Platina Basin, especially the Paraguay river.
	www.brazilianembassykw.com /amazon.htm (2637 words)

	AllRefer.com - Negro, RIo, river, Colombia, Venezuela, and Brazil, Latin America & Caribbean Islands (Latin American ...
		Negro, RIo, river, c.1,400 mi (2,250 km) long, rising as the GuainIa River in E Colombia where it flows NE before turning south to form part of the Colombia-Venezuela border.
		The RIo Negro is connected with the Orinoco basin by the Casiquiare, a natural canal.
		The river was named for its fl color, which results from vegetal debris, not sediment.
	reference.allrefer.com /encyclopedia/N/NegroRBrz.html (266 words)

	Rio Negro - Wikipedia, the free encyclopedia
		Rio Negro (Portuguese: Rio Negro, Spanish: Río Negro), the largest left tributary of the Amazon and the largest flwater river in the world, has its sources along the watershed between the Orinoco and the Amazon basins, and also connects with the Orinoco by way of the Casiquiare canal.
		Its main affluent is Vaupés, which disputes with the headwaters of the Guaviare branch of the Orinoco the drainage of the eastern slope of the Andes of Colombia.
		Rio Negro is navigable for 450 miles above its mouth for 4 feet of water in the dry season, but it has many sandbanks and minor difficulties.
	www.wikipedia.org /wiki/Rio_Negro (252 words)

	Search Results for Negro - Encyclopædia Britannica (Site not responding. Last check: 2007-10-21)
		The Negro flows southwestward into Uruguay, where it is dammed near Paso de los Toros to create the Rincón del Bonete...
		river, southern Argentina, whose major headstreams, the Neuquén and the Limay, rise in the Andes Mountains near the Chilean border.
		Argues that "The negro has neither moral conception nor religion, yet he is an emotional religion of the loudest type and dies like a martyr.
	www.britannica.com /search?query=Negro&submit=Find&source=MWTEXT (604 words)

	Young Water Action Team \| Knowledge Base \| River Basin Report: Amazon and Rio Negro
		The Rio Negro is a large tributary of the Amazon, which is the most powerful river of the World.
		The catchment basin of the river is as big as the continent Australia, six million square kilometres and the rain forest grows in a moist tropical climate.
		The Rio Negro is a tributary of the Amazon and forms the northern part of the catchment basin.
	ywwf.net /knowledgebase/riverbasins/sa-amazon.html (809 words)

	Rio Negro province (Site not responding. Last check: 2007-10-21)
		Río Negro province is a varied region from the Atlantic to the Andes.
		In the east, beautiful and extended beaches cover the coast, in the north the fertile Río Negro Valley produces the best apples in the world and in the middle of the province the desert spreads out, while in the west is plente of forests and lakes.
		This system uses the Negro river to water by channels the fruits plants that cover the Río Negro Valley, being this one the main economic region of the province.
	www.argentour.com /RioNegro.htm (340 words)

	On the Rio Negro, by Alfred Russel Wallace
		The fact that the most purely fl-water rivers flow through districts of dense forest, and have granite beds, seems to show that it is the percolation of the water through decaying vegetable matter which gives it its peculiar colour.
		All the islands, as well as the low parts of the river banks, are flooded annually for several months--generally from April to August or September, the rise of the river being from 30 to 50 feet.
		The cataracts of the Rio Negro extend in length about 20 miles, and are a series of rapids, where the river flows among islands and vast masses of granite rock, forming falls, eddies, and whirlpools, which greatly obstruct navigation.
	www.wku.edu /~smithch/wallace/S011.htm (2239 words)

	CPD: South America, Site SA6, Upper Rio Negro Region, Brazil, Columbia, Venezuela
		Throughout the Amazon Basin, the vegetation is strongly correlated with the geomorphology, soils and climate (Salgado and Brazão 1990).
		The importance of the Upper Rio Negro for plant diversity is not in the many endemics occurring on the white-sand vegetation, but that the region of which the Upper Rio Negro is the core, is the repository of the very old forest elements of the vegetation of the Guayana Shield.
		The forests of the Upper Rio Negro regulate the hydrology of the Rio Negro Basin.
	www.nmnh.si.edu /botany/projects/cpd/sa/sa6.htm (2895 words)

	Rio Negro (Site not responding. Last check: 2007-10-21)
		To compensate the inhabitants of this valley, a small colony, given the name of Pacux, was built for a small portion of the Chixoy valley population on the outskirts of Rabinal.
		Negro and buried in Rabinal on the 24 of April.
		Furthermore, the community of Río Negro, which consisted of only four families when the exhumation began in June of this year, now consists of more than 19 families, who have reoccupied their abandoned lands.
	garnet.acns.fsu.edu /~sss4407/RioNeg.htm (820 words)

	MINISTÉRIO DOS TRANSPORTES (Site not responding. Last check: 2007-10-21)
		The Negro river basin is quite irregular, with ramifications to southeast (to its affluent course, the BRANCO river).
		Throughout all this length, the river has different width, beginning with 2 Km in Manaus city and enlarging to 24 Km near Anavilhanas archipelago (largest archipelago of the world), narrowing again to 3 Km at the end of the space and with many islands, and many navigable places.
		The general steepness of Negro river, up to where it presents typical characteristics of plain river, from its mouth, in Amazonas river up to Curicuari bar, (Km 955) is of 3 cm/Km.
	www.transportes.gov.br /bit/hidro/egrionegr.htm (243 words)

	Brazilian Amazon Tours, Amazon Tours, Amazon Rain Forest Tours, Rio Negro, Amazon Rain Forest
		River cruise Brazilian Amazon tours also give you the chance to unwind from the stresses of city life and you slowly meander along one of the greatest waterways in the world.
		Although most river cruise operators that operate Brazilian Amazon tours start their journey in Manus, nearly all operator their riverboats (or houseboats as they are also known) for the classic one-week tour.
		Riverboats plying their trade up the Rio Negro River all come fully equipped with food beverages and a crew (interestingly, the crew is not always local - some coming from as far away as the Philippines!).
	www.destination360.com /south-america/brazil/brazilian-amazon-tours.php (555 words)

	RedOrbit - Images Of The Day - Manaus, Amazonia (Site not responding. Last check: 2007-10-21)
		The largest river on the planet, the Amazon, forms from the confluence of the SolimÃµes (the upper Amazon River) and the Negro at the Brazilian city of Manaus in central Amazonas.
		At the river conjunction, the muddy, tan-colored waters of the SolimÃµes meet the âflâ water of the Negro River.
		Indeed, widths of the rivers differ for this reason (the Negro River is almost 20 km wide in the top left corner).
	www.rednova.com /images/images-of-the-day?image_id=6721 (329 words)

	The Riverboat
		From Manaus we travel an hour to the stunning meeting of the waters where the Negro River flows into the mighty Amazon River but the two do not mix due to differences in velocity, density and temperature.
		We will explore these rivers beneath the rainforest canopy and, conditions permitting, trek to their source waterfalls deep in the jungle.
		DAY 7 Finally- time and river conditions permitting- we will have time to trek and canoe on the Cuieiras River, a longer tributary of the Negro River where we own our own rainforest property and work with several local families.
	www.amazonadventures.com /riverboat.htm (1247 words)

	Terrestrial Ecoregions -- Negro-Branco moist forests (NT0143)
		Rivers in the countries of Colombia, Venezuela and Brazil bind the Negro-Blanco moist forest ecoregion.
		In the Rio Negro Basin, because of the presence of a high density of flwater streams and small rivers passing through the area, part of the ecoregion to the west of the confluence of the Rio Negro and Rio Branco hosts a large area of igapó forest.
		The southern arm of this ecoregion occurs between the northern bank of the Negro River and the distinct campinarana and Guyanan highlands to the north, and the eastern boundary follows the Branco rivers western shores from its confluence with the Negro northwards.
	www.worldwildlife.org /wildworld/profiles/terrestrial/nt/nt0143_full.html (1454 words)

	Untitled Document (Site not responding. Last check: 2007-10-21)
		About 100km above Manaus is one of the biggest river archipelagos of the world, which by the way disputes this position with the Mariuá Archipelago, situated further downstream on the Negro River.
		It possesses an area of 350,018 hectares in the northeast part of Amazonas on the Negro River between Novo Airão and Manaus.
		The Environmental Protection Areas of the Urubui River is comprised of a strip of forest that goes from the start of the city at KM100 to KM122 of Highway BR-174.
	www.birding.com.br /English/BirdwatchingAreas.htm (404 words)

	"The Rain Forest Guide" - Rio Negro (Site not responding. Last check: 2007-10-21)
		Rio Negro water could pass in colour for guinness or dark tea.
		The peculiar color of the Rio Negro, and other large Amazonian flwater rivers, is due to the heavy input of incompletely decomposed organic matter.
		The organic overload is carried into the streams and rivers and renders them dark in colour.
	geocities.com /therainforestguide/Rio%20Negro.htm (123 words)

	Travel guide to Viedma and Carmen de Patagones, Argentina
		Carmen de Patagones in the north riverside belongs to the Buenos Aires province and Viedma in the south riverside is the capital of the Río Negro province.
		This place is the point of arrival of the yacht of kayaks of the Negro river that runs every year in the month of January between Neuquén and Viedma through 1,000 kilometers of river (one of the longest of the world).
		30 kilometers to the east in the outlet of the Negro river in the sea it is the spa El Cóndor where the oldest lighthouse in the Argentinean territory is, built in 1887.
	www.patagonias.net /Cities/ViedmaPatagones.htm (387 words)

	Negro River -- Encyclopædia Britannica
		The Negro flows southwestward into Uruguay, where it is dammed near Paso de los Toros to create the Rincón del Bonete Reservoir (also called the Gabriel Terra Reservoir, or the Rio Negro Reservoir), the largest artificial lake in South America (4,000 square miles [10,360 square km]).
		It is crossed (northwest to southeast) by the Negro River.
		The highest point is Mount Davis, in the Negro Mountains of Somerset County.
	www.britannica.com /eb/article-9055194?tocId=9055194 (981 words)

	Pseudo color image of the Rio Negro (Site not responding. Last check: 2007-10-21)
		This is a pseudo color image of the Rio Negro, centered at 2.75 degrees south latitude and 60.75 degrees west longitude.
		The visible Negro River is nutrient poor and contains high concentrations of dissolved organic carbon, hence it is called a fl water river.
		The Amazon and its floodplain is the world's largest river system, draining 37% of South America and discharging about 20% of the freshwater reaching the world's oceans.Recent attempts to model the carbon biogeo- chemistry of large tropical rivers have shown that the fluxes between the floodplain and river are likely to be significant.
	www.op.dlr.de /ne-hf/SRL-1/xx-rionegro.html (505 words)

	World Heritage Sites: Central Amazon Conservation Complex (Site not responding. Last check: 2007-10-21)
		It encompasses a landscape, which is characteristic of the lower Negro River and was typified as follows by the surveys of RadamBrasil (1978): (a) dense tropical forest, located primarily on terra firme, thereby free from inundation in the flooding season.
		In the region of the Negro, a fl-water river, the forests that grow on inundated soils are known as Igapó forests; and (c) Campinarana, a vegetation mosaic restricted to the Negro River watershed, occupying primarily upland regions and drained by tabular watercourses.
		Its initial point is the confluence of the Jaú and Negro rivers and, from this point onward, extends along the right margin of the Jaú River until the mouth of the Carabinani River.
	www.redtailcanyon.com /items/13038.aspx (1192 words)

	PeacockBassOnline - Prime Patterns for Peacock Bass
		The Amazon river is the largest river in the world (the Nile is actually the longest river), in terms of its volume and area of its drainage basin.
		The Rio Negro is the largest of all the Amazon tributaries and is well known to sport anglers from throughout the world.
		The extensive lowland areas bordering the main river and its tributaries, called várzeas, are subject to annual flooding, with consequent soil enrichment; however, most of the vast basin consists of upland, well above the inundations and known as terra firme.
	www.peacockbassonline.com /amazon_basin.html (956 words)

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