Blackwater rivers are rivers with waters colored like black tea to coffee. Most major blackwater rivers are in the Amazon River system and the Southern United States. This article is about the chemical substances. ... Tea leaves in a Chinese gaiwan. ... A cup of coffee Coffee is one of the most widely consumed beverages in the world. ... A satellite image of the mouth of the Amazon River, looking south The Amazon River or River Amazon (Spanish: ; Portuguese: ) of South America is the most voluminous river on earth, having a greater total flow than the next six largest rivers combined. ... Southern United States The states shown in dark red are usually included in the South, while all or portions of the striped states may or may not be considered part of the Southern United States. ...

Amazon River tributary classified as blackwater

Manaus, the largest city on the Amazon River, as seen from a NASA satellite image, surrounded by the muddy Amazon River and the blackwater Negro River.

A blackwater river is one with a deep, slow-moving channel that flows through forested swamps and wetlands. The color results from the leaching of tannins from the decaying leaves of adjoining vegetation. This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Download high resolution version (640x640, 156 KB)A satellite image of the city of Manaus with surrounding rivers. ... Download high resolution version (640x640, 156 KB)A satellite image of the city of Manaus with surrounding rivers. ... Location in Brazil Country Brazil Region North State Amazonas Founded 1669 Mayor Serafim Corrêa (PSB) Area    - City 11. ... A satellite image of the mouth of the Amazon River, looking south The Amazon River or River Amazon (Spanish: ; Portuguese: ) of South America is the most voluminous river on earth, having a greater total flow than the next six largest rivers combined. ... The National Aeronautics and Space Administration (NASA) is an agency of the United States Government, responsible for that nations public space program. ... The Negro (Spanish: black) River, the great northern tributary of the Amazon River and the largest blackwater 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. ... Eucalyptus Forest at Swifts Creek in East Gippsland, Victoria, Australia. ... A freshwater swamp This article is about the wetland type (a landform). ... A subtropical wetland in Florida, USA, with an endangered American Crocodile. ... Tannins are astringent, bitter-tasting plant polyphenols that bind and precipitate proteins. ... The leaves of a Beech tree A leaf with laminar structure and pinnate venation In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ...

Comparison between white and black waters

Black and white waters differ significantly in their ionic composition, as shown in Table 1 below. Black waters have ionic concentrations not much greater than that of rainwater. They are, however, much more acidic and this results in black waters having an aluminium concentration greater than that of the more neutral white waters. The major difference is the concentrations of sodium, magnesium, calcium and potassium; these are very low in black waters. This has considerable ecological implications. Some animal groups, such as snails, need a lot of calcium with which to build their shells and so are not abundant in black waters. The lack of dissolved ions in black waters results in a low conductivity, similar to that of rainwater. Rain falling For other uses see Rain (disambiguation). ... For alternative meanings see acid (disambiguation). ... General Name, Symbol, Number aluminium, Al, 13 Chemical series poor metals Group, Period, Block 13, 3, p Appearance silvery Atomic mass 26. ... General Name, Symbol, Number sodium, Na, 11 Chemical series alkali metals Group, Period, Block 1, 3, s Appearance silvery white Atomic mass 22. ... General Name, Symbol, Number magnesium, Mg, 12 Chemical series alkaline earth metals Group, Period, Block 2, 3, s Appearance silvery white Atomic mass 24. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number potassium, K, 19 Chemical series alkali metals Group, Period, Block 1, 4, s Appearance silvery white Atomic mass 39. ... Giant African Snail (Achatina fulica) The name snail applies to most members of the molluscan Class Gastropoda that have coiled shells. ... Electrical conductivity is a measure of a materials ability to conduct an electric current. ...

Black and white waters also differ in their planktonic fauna and flora. Tables 2 and 3 below compare the number of planktonic animals caught in black and white water localities only a few meters apart. In fact, the black water was not even as extreme an example as can be found in the Rio Negro system. However, it can be seen that the black water held far greater numbers of rotifers but fewer crustaceans and mites. These crustaceans are important foods for larval fish. The zones where the two waters mix are particularly attractive to ostracods and young fish. These mixing zones tend to have high numbers of animals. The high abundance of animals is shown clearly in Table 3 which compares the numbers of animals present in 10 litres of water in each habitat sampled.^[1] Photomontage of plankton organisms Plankton is the aggregate community of weakly swimming but mostly drifting small organisms that inhabit the water column of the ocean, seas, and bodies of freshwater. ... Fauna is a collective term for animal life of any particular region or time. ... Simplified schematic of an islands flora - all its plant species, highlighted in boxes. ... The Negro (Spanish: black) River, the great northern tributary of the Amazon River and the largest blackwater 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. ... Classes Seisonoidea Bdelloidea Monogononta The rotifers make up a phylum of microscopic, pseudocoelomate animals. ... Classes Remipedia Cephalocarida Branchiopoda Ostracoda Maxillopoda Malacostraca The crustaceans (Crustacea) are a large group of arthropods (55,000 species), usually treated as a subphylum. ... Families Tetranychidae - Spider mites Eriophyidae - Gall mites Sarcoptidae - Sarcoptic Mange mites The mites and ticks, order Acarina or Acari, belong to the Arachnida and are among the most diverse and successful of all the invertebrate groups, although some way behind the insects. ... A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ...

Electrical conductivity is a measure of a materials ability to conduct an electric current. ... . The initial letter is shown capitalized due to technical restrictions. ... A satellite image of the mouth of the Amazon River, looking south The Amazon River or River Amazon (Spanish: ; Portuguese: ) of South America is the most voluminous river on earth, having a greater total flow than the next six largest rivers combined. ... Solimões is the name often given to early stretches of the Amazon River from the border of Brazil and Peru to its confluence with the Negro River. ... A satellite image of the mouth of the Amazon River, looking south The Amazon River or River Amazon (Spanish: ; Portuguese: ) of South America is the most voluminous river on earth, having a greater total flow than the next six largest rivers combined. ... The Negro (Spanish: black) River, the great northern tributary of the Amazon River and the largest blackwater 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. ... General Name, Symbol, Number sodium, Na, 11 Chemical series alkali metals Group, Period, Block 1, 3, s Appearance silvery white Atomic mass 22. ... General Name, Symbol, Number potassium, K, 19 Chemical series alkali metals Group, Period, Block 1, 4, s Appearance silvery white Atomic mass 39. ... General Name, Symbol, Number magnesium, Mg, 12 Chemical series alkaline earth metals Group, Period, Block 2, 3, s Appearance silvery white Atomic mass 24. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number chlorine, Cl, 17 Chemical series halogens Group, Period, Block 17, 3, p Appearance yellowish green Atomic mass 35. ... General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance as coarse powder, dark gray with bluish tinge Atomic mass 28. ... General Name, Symbol, Number strontium, Sr, 38 Chemical series alkaline earth metals Group, Period, Block 2, 5, s Appearance silvery white metallic Atomic mass 87. ... General Name, Symbol, Number barium, Ba, 56 Chemical series alkaline earth metals Group, Period, Block 2, 6, s Appearance silvery white Atomic mass 137. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54. ... For other uses, see Copper (disambiguation). ... General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Appearance bluish pale gray Atomic mass 65. ... Electrical conductivity is a measure of a materials ability to conduct an electric current. ... . The initial letter is shown capitalized due to technical restrictions. ... Phosphite is a polyatomic ion with the formula: PO33-. The archaic name for phosphite was phosphorous, not to be confused with phosphorus. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... Bicarbonate is a polyatomic ion whose formula is HCO3-. It is the intermediate form in the deprotonation of carbonic acid: removing the first proton from carbonic acid forms bicarbonate; removing the second proton leads to the carbonate ion. ... Photomontage of plankton organisms Plankton is the aggregate community of weakly swimming but mostly drifting small organisms that inhabit the water column of the ocean, seas, and bodies of freshwater. ... The Japura river, also called the zhepoorä´ in Latin, river, c. ... Solimões is the name often given to early stretches of the Amazon River from the border of Brazil and Peru to its confluence with the Negro River. ... Classes Seisonoidea Bdelloidea Monogononta The rotifers make up a phylum of microscopic, pseudocoelomate animals. ... Families Suborder Anomopoda Daphniidae Moinidae Bosminidae Macrothricidae Chydoridae Suborder Ctenopoda Sididae Holopedidae Suborder Onychopoda Polyphemidae Cercopagidae Podonidae Suborder Haplopoda Leptodoridae Daphnia are members of the order Cladocera. ... Orders Archaeocopida (extinct) Leperditicopida (extinct) Palaeocopida (extinct) Podocopida Platycopida Myodocopida Introduction Ostracoda is a class of the Crustacea, sometimes known as the seed shrimp because of their appearance. ... The order calanoida consist of amoung others the Family Bold textAcartiidaeBold text whish again consist of amoung others the Genus Bold textItalic textAcartiaItalic textBold text Dana, 1846. ... Families Archinotodelphyidae Ascidicolidae Buproridae Chordeumiidae Cucumaricolidae Cyclopidae Cyclopinidae Fratiidae Lernaeidae Mantridae Notodelphyidae Oithonidae Ozmanidae Speleoithonidae Thaumatopsyllidae (From ) Cyclopoida is an order of small crustaceans from the subclass Copepoda. ... Chironomidae are a family of Nematoceran Diptera closely related to the Ceratopogonidae, Simuliidae, and Thaumaleidae. ... Families Tetranychidae - Spider mites Eriophyidae - Gall mites Sarcoptidae - Sarcoptic Mange mites The mites and ticks, order Acarina or Acari, belong to the Arachnida and are among the most diverse and successful of all the invertebrate groups, although some way behind the insects. ... Photomontage of plankton organisms Plankton is the aggregate community of weakly swimming but mostly drifting small organisms that inhabit the water column of the ocean, seas, and bodies of freshwater. ... Genera Pandorina Eudorina Platydorina Pleodorina Volvox Volvulina Yamagishiella Basichlamys The Volvocaceae are a family of unicellular or colonial biflagellates, including the typical genus Volvox. ... Classes Seisonoidea Bdelloidea Monogononta The rotifers make up a phylum of microscopic, pseudocoelomate animals. ... Families Suborder Anomopoda Daphniidae Moinidae Bosminidae Macrothricidae Chydoridae Suborder Ctenopoda Sididae Holopedidae Suborder Onychopoda Polyphemidae Cercopagidae Podonidae Suborder Haplopoda Leptodoridae Daphnia are members of the order Cladocera. ... Orders Archaeocopida (extinct) Leperditicopida (extinct) Palaeocopida (extinct) Podocopida Platycopida Myodocopida Introduction Ostracoda is a class of the Crustacea, sometimes known as the seed shrimp because of their appearance. ... The order calanoida consist of amoung others the Family Bold textAcartiidaeBold text whish again consist of amoung others the Genus Bold textItalic textAcartiaItalic textBold text Dana, 1846. ... Families Archinotodelphyidae Ascidicolidae Buproridae Chordeumiidae Cucumaricolidae Cyclopidae Cyclopinidae Fratiidae Lernaeidae Mantridae Notodelphyidae Oithonidae Ozmanidae Speleoithonidae Thaumatopsyllidae (From ) Cyclopoida is an order of small crustaceans from the subclass Copepoda. ... Families not necessarily a complete list: Mysidae Eucopiidae Lophogastridae Petalophthalmidae Gnathophausiidae The Mysidacea is an order of small, shrimp-like creatures including the species Neomysis americana (opossum shrimp). ... Suborders Nematocera (includes Eudiptera) Brachycera Diptera (di - two, ptera - wings), or true flies, is the order of insects possessing only a single pair of wings on the mesothorax; the metathorax bears a pair of drumstick like structures called the halteres, the remnants of the hind wings. ... Families Tetranychidae - Spider mites Eriophyidae - Gall mites Sarcoptidae - Sarcoptic Mange mites The mites and ticks, order Acarina or Acari, belong to the Arachnida and are among the most diverse and successful of all the invertebrate groups, although some way behind the insects. ...

Blackwater rivers of the world:

Amazonia

• Apaporis River: A tributary of the Yapura River.
• Arapiuns River: A tributary of the Tapajós River.
• Coari River
• Mirití-Paraná River
• Negro River: The largest blackwater river in the world; one of the largest Amazonian tributaries.
• Piorini River
• Tahuayo River
• Tefé River
• Uatamã River
• Urubu River
• Vaupés

The Yapura River is a tributary of the Amazon River. ... The Tapajós, a Brazilian river running through a humid, hot and unhealthy valley, pours into the Amazon River 500 miles above Pará and is about 1200 miles long. ... The Negro (Spanish: black) River, the great northern tributary of the Amazon River and the largest blackwater 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. ... Vaupés is a department of Colombia. ...

Orinoco basin

• Atabapo: from the Guiana Highlands of Venezuela west into the Orinoco
• Caroní River: from the Guiana Highlands of Venezuela west into the Orinoco
• Inírida: from Colombia northeast into the Orinoco, flows first into the Guaviare River and this flows into the Orinoco
• Ventuari: from eastern Venezuela southwest into the Orinoco
• Vichada: from Colombia east into the Orinoco
• Tomo: from Colombia east into the Orinoco
• Tuparro: from Colombia east into the Orinoco

Guiana (also known as the Guiana highlands or the Guiana shield) forms a portion of the northern coast of South America. ... Bridge over the Orinoco at Ciudad Bolívar, Venezuela (2004) The Orinoco is one of the longest rivers in South America at 2,410 km, (1,497. ... The Caroní River is a major river of the Orinoco basin in South America, having its source in South Eastern Venezuela, in the Guiana Highlands. ... The Guaviare is a tributary of the Orinoco located in Colombia. ... The Ventuari River is a river in the Orinoco basin in Venezuela. ... The Vichada River is a river in the country of Colombia, South America. ...

Southern United States

• Blackwater River: a tributary of the Chowan River in Virginia.
• Blackwater River: a major river in the western Florida panhandle.
• Black River: a tributary of the Pee Dee River in North and South Carolina.
• Cape Fear River, North Carolina: flows into the Atlantic Ocean.
• Cashie River, North Carolina: flows into Albemarle Sound.
• Caloosahatchee River, Florida: flows west from Lake Okeechobee to the Gulf of Mexico.
• Chowan River, North Carolina: flows into Albemarle Sound.
• Edisto River, South Carolina: flows into the Atlantic Ocean; the longest undammed, unleveed blackwater river in North America.
• Great Coharie Creek, North Carolina: flows into the Black River.
• Little Pee Dee River, South Carolina: flows into the Pee Dee River.
• Lumber/Drowning Creek: located in North and South Carolina.
• Pithlachascotee River: A small river in central Florida.
• Suwannee River: A large river in southern Georgia and northern Florida flowing into the Gulf of Mexico.
• Upper Little River, North Carolina: flows into the Cape Fear River.
• Waccamaw River, North and South Carolina: flows into the Atlantic Ocean.
• White Oak River, North Carolina: flows into the Atlantic Ocean.

The Blackwater River of southeastern Virginia flows from its source near the city of Petersburg, Virginia for about 105 miles through the Inner Coastal Plain region of Virginia (part of the Atlantic Coastal Plain. ... The Chowan River is a blackwater river formed with the merging of Virginias Blackwater and Nottoway rivers near the stateline between Virginia and North Carolina. ... Official language(s) English Capital Richmond Largest city Virginia Beach Area  Ranked 35th  - Total 42,793 sq mi (110,862 km²)  - Width 200 miles (320 km)  - Length 430 miles (690 km)  - % water 7. ... The Blackwater River of Florida is a 49-mile (79 km) long river arising in southern Alabama and flowing through the Florida Panhandle to the Gulf of Mexico. ... The Florida Panhandle is the region of the state of Florida which includes the westernmost 16 counties in the state. ... The Black River originates at the conjunction of several minor swamps just to the south of the city of Bishopville, South Carolina, flowing southeasterly on the coastal plain of South Carolina to empty into the Pee Dee River north of Georgetown, South Carolina. ... Shad Fishing in February Pee Dee River, Yauhanna, South Carolina The Pee Dee River, also known as the Great Pee Dee River, is a river in South Carolina. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... Official language(s) English Capital Charleston(1670-1789) Columbia(1790-present) Largest city Columbia Largest metro area Greenville-Spartanburg-Anderson Area  Ranked 40th  - Total 34,726 sq mi (82,965 km²)  - Width 200 miles (320 km)  - Length 260 miles (420 km)  - % water 6  - Latitude 32°430N to 35... The Cape Fear River, shown highlighted, with its tributaries The Cape Fear River is a 202 mi (325 km) long river in east central North Carolina in the United States. ... Albemarle Sound with the northern Outer Banks. ... The Caloosahatchee River is a river on the southwest Gulf Coast of Florida in the United States, approximately 75 mi (121 long). ... This article or section does not cite its references or sources. ... Lake Okeechobee from space, September 1988 View of Lake Okeechobee from Pahokee. ... Gulf of Mexico in 3D perspective. ... The Chowan River is a blackwater river formed with the merging of Virginias Blackwater and Nottoway rivers near the stateline between Virginia and North Carolina. ... The Edisto River is the longest completely undammed / unleveed blackwater river in North America, flowing 206 meandering miles from its source in Saluda County, to its Atlantic Ocean mouth at Edisto Beach, SC. It rises in two main tributaries (North Fork & South Fork) from springs under the Sand Hills region... The Little Pee Dee River is a tributary of the Pee Dee River (which originates in the Appalachian Mountains where it is known as the Yadkin River). ... Shad Fishing in February Pee Dee River, Yauhanna, South Carolina The Pee Dee River, also known as the Great Pee Dee River, is a river in South Carolina. ... The Pithlachascotee River, often called the Cotee or, tongue-in-cheek, Cootie River, is a blackwater river in Pasco County, Florida. ... This article or section does not cite its references or sources. ... The Suwannee River (also spelled Suwanee River) is a major river of southern Georgia and northern Florida in the United States. ... The Cape Fear River, shown highlighted, with its tributaries The Cape Fear River is a 202 mi (325 km) long river in east central North Carolina in the United States. ... The Waccamaw River is a river, approximately 140 mi (225 km) long, in southeastern North Carolina and eastern South Carolina in the United States. ... The White Oak River is a river, approximately 40 mi (64 km) long, on the coastal plain of southeast North Carolina in the United States. ...

Northern United States

• Tahquamenon River, Michigan: A river in the Upper Peninsula that flows into Lake Superior.

The Tahquamenon River is a 94-mile (150-km. ... This article is about the U.S. State. ... The Upper Peninsula of Michigan, also known as The Upper Peninsula, The U.P. (or The UP), and Above the Bridge by Michiganders, refers to the northern peninsula of the U.S. state of Michigan. ... Lake Superior (known as Gichigami in an Ojibwe language), bounded by Ontario and Minnesota to the north and Wisconsin and Michigan in the south, is the largest of North Americas Great Lakes. ...

See also

• Blackwater River, a list of rivers by this name.
• Bog

Blackwater rivers are rivers with waters colored like black tea to coffee. ... Lütt-Witt Moor, a bog in Henstedt-Ulzburg in northern Germany. ...

References

1. ^ Comparison between white and black waters. (no date). Retrieved May 21, 2006 from http://www.amazonian-fish.co.uk/indexc30.html