A distributary , or a distributary channel is a stream channel that branches off and flows away from a main stream channel. It is the opposite of a tributary , a stream that flows towards and into another stream or river. Distributaries are a result of river bifurcation and are often found where a river approaches a lake or an ocean and divides into distributary networks; as such they are a common feature of river deltas . They can also occur inland, on alluvial fans , or where a tributary stream bifurcates as it nears its confluence with a larger stream. In some cases, a minor distributary can divert so much water from the main channel that it can later become the main route.
45-741: The Chinde River is a distributary of the Zambezi river delta in Mozambique . The town of Chinde is located on its banks. 18°35′S 36°28′E / 18.583°S 36.467°E / -18.583; 36.467 This article related to a river in Mozambique is a stub . You can help Misplaced Pages by expanding it . Distributary Common terms to name individual river distributaries in English-speaking countries are arm and channel . These terms may refer to
90-653: A distributary that does not rejoin the channel from which it has branched (e.g., the North, Middle, and South Arms of the Fraser River , or the West Channel of the Mackenzie River ), or to one that does (e.g. Annacis Channel and Annieville Channel of the Fraser River , separated by Annacis Island ). In Australia, the term anabranch is used to refer to a distributary that diverts from the main course of
135-511: A wet monsoon climate, with over 1,400 millimetres (55 in) of rainfall per year. Temperatures range from 24 to 33 °C (75 to 91 °F) in Bangkok. The lower Chao Phraya underwent several human-made modifications during the Ayutthaya period. Several shortcut canals were constructed to bypass large loops in the river, shortening the trip from the capital city to the sea. The course of
180-482: Is critically endangered and Caliphaea angka is endangered . There are few areas of wetland protected as national parks, but these are mostly very small. The Chao Phraya basin is home to around 280 species of fish, including about 30 endemics . By far the most diverse family is Cyprinidae with 108 species. The mainstream of the Chao Phraya River has about 190 native fish species. In general,
225-715: Is a generic term, mae signifying "mother" and Nam "water," and the epithet Chao P'ia signifies that it is the chief river in the kingdom of Siam." Herbert Warington Smyth , who served as Director of the Department of Mines in Siam from 1891 to 1896, refers to it in his book first published in 1898 as "the Mae Nam Chao Phraya". In the English-language media in Thailand, the name Chao Phraya River
270-551: Is at a single location that covers less than 10 km (4 sq mi). The endangered dwarf loach , another species bred in large numbers for the aquarium trade, has been extirpated from most of its range in Chao Phraya. The critically endangered Siamese tigerfish has been entirely exirpated from Chao Phraya and Mae Klong, but small populations remain in the Mekong basin. Many other species that either are prominent in
315-606: Is drained by the Mae Klong and the east by the Bang Pakong River . They are not part of the Chao Praya system. The landscape of the river basins is a very wide, flat, well-watered plain continuously refreshed with soil and sediment brought down by the rivers. The lower central plain from the delta north to Ang Thong Province is a flat, low area with an average of two metres above sea level. Further north and into
360-519: Is often translated as river of kings . On the basins of Chao Phraya River rose the earliest civilizations in the south east Asia, most notably the ancient Mon kingdom and the civilization of Dvaravati from the 7th century to the 11th century, the river played a crucial role in the Lavo kingdom that existed on its left bank in the Upper Chao Phraya valley, Chao Phraya maintained its role in
405-520: Is the major distributary of the Chao Phraya River. The expanse of the Chao Phraya and Tha Chin Rivers and their distributaries, starting at the point at which the distributaries diverge, together with the land amid the triangle formed by the outermost and innermost distributary, form the Chao Phraya delta . The many distributaries of the Chao Phraya delta are interconnected by canals that serve both for irrigation and for transportation. The lowland areas of
450-557: The Ayutthaya Kingdom that succeeded it when rice growing intensified with the introduction of floating rice , a much faster-growing strain of rice from Bengal . The southern swamps meanwhile changed radically from the 18th century when King Buddha Yodfa Chulaloke moved the capital of Siam to Bangkok, and a process of canalisation and cultivation began, especially as Thailand began to export rice from 1855. The Tha Chin River
495-697: The Balonne River in Queensland into Narran Lake in New South Wales . Many of Papua New Guinea's major rivers flow into the Gulf of Papua through marshy, low-lying country, allowing for wide, many-branched deltas. These include the Fly River , which splits into three major and several minor rivers close to its mouth. The Bamu River splits into several channels close to its mouth, among them
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#1732776176268540-773: The Bebea , Bina , Dibiri , and Aramia . The Kikori River also splits into a multitude of channels as it crosses the plains close to the Gulf of Papua. The Purari River splits into three major channels as it approaches its mouth. New Zealand's second-longest river, the Clutha River , splits into two arms, the Matau and the Koua , some 10 kilometres from the South Island's Pacific Coast. A large island, Inch Clutha , lies between
585-747: The North Arm and the South Arm , and a few smaller ones adjoining them. Examples of inland distributaries: The Casiquiare canal is an inland distributary of the upper Orinoco , which flows southward into the Rio Negro , forming a unique natural canal between the Orinoco and Amazon river systems. It is the largest river on the planet that links two major river systems. The Huai River in China splits into three streams. The main stream passes through
630-830: The Red River of the South . The Old River Control Structure , a dam which regulates the outflow from the Mississippi into the Atchafalaya, was completed by the Army Corps of Engineers in 1963. The dam is intended to prevent the Atchafalaya from capturing the main flow of the Mississippi and stranding the ports of Baton Rouge and New Orleans . In British Columbia , Canada, the Fraser River has numerous sloughs and side-channels which may be defined as distributaries. This river's final stretch has three main distributaries:
675-449: The limestone rat ( Niviventer hinpoon ), Neill's long-tailed giant rat ( Leopoldamys neilli ), and the near-endemic Thailand roundleaf bat ( Hipposideros halophyllus ). The Chao Phraya basin is home to about half a dozen endemic dragonflies and damselflies . The conservation status of most of these in unclear (they are rated as data deficient by the IUCN ), but Cryptophaea saukra
720-463: The water quality of major rivers flowing into the upper Gulf of Thailand has seriously deteriorated, and the lower Chao Phraya contains bacteria and nutrient pollution from phosphates , phosphorus , and nitrogen . Nutrient pollution causes algae to grow faster than ecosystems can handle, harming water quality, food resources for aquatic animals, and marine habitats. It also decreases the oxygen that fish need to survive. PCD rated water quality at
765-710: The Burmese invasions coming from the West. The Chao Phraya begins at the confluence of the Ping and Nan rivers at Nakhon Sawan (also called Pak Nam Pho) in Nakhon Sawan province . After this, it flows south for 372 kilometres (231 mi) from the central plains to Bangkok and the Gulf of Thailand . In Chai Nat , the river then splits into the main course and the Tha Chin River , which then flows parallel to
810-499: The Chao Phraya watershed in central Thailand have been designated as the Chao Phraya freshwater swamp forests , a tropical and subtropical moist broadleaf forests ecoregion , an area about 400 km (249 mi) north to south and 180 km (112 mi) wide. The original swamp forests have almost entirely been removed as the plain has been converted to rice paddies, other agriculture, and urban areas like Bangkok. Much of
855-698: The Sanhe Sluice, goes out of the Sanhe river, and enters the Yangtze River through Baoying Lake and Gaoyou Lake . On the east bank of Hongze Lake , another stream goes out of Gaoliangjian Gate and enters the Yellow Sea at the port of Bidan through Subei Guan'gai Zongqu, the main irrigation channel of Northern Jiangsu ); its total length is 168 kilometers. The third stream leaves the Erhe lock on
900-977: The aquarium trade or important food fish are native to the Chao Phraya basin, such as the climbing perch , blue panchax , Asian bumblebee catfish , giant snakehead , striped snakehead , walking catfish , banded loach , several Yasuhikotakia loaches, tinfoil barb , Siamese algae eater , silver barb , pearl danio , rainbow shark , Hampala barb , black sharkminnow , Leptobarbus rubripinna , long pectoral-fin minnow , bonylip barb , Jullien's golden carp , blackline rasbora , scissortail rasbora , Tor tambroides , finescale tigerfish , marble goby , Chinese algae eater , giant featherback , clown featherback , giant gourami , several Trichopodus gouramis, iridescent shark , several Pangasius , Belodontichthys truncatus , several Phalacronotus sheatfish, several Wallago catfish, largescale archerfish , smallscale archerfish , and wrestling halfbeak . The Thai Pollution Control Department (PCD) reports that
945-620: The aquatic fauna of Chao Phraya and Mae Klong show clear similarities, and they are sometimes combined in a single ecoregion with 328 fish species. Despite their similarities, there are also differences between the aquatic fauna of Chao Phraya and Mae Klong; the latter (but not the former) is home to a few taxa otherwise only known in major Burmese rivers: the Irrawaddy , Salween , and Tenasserim . The aquatic fauna in Chao Phraya–Mae Klong also show clear similarities with that of
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#1732776176268990-712: The centre of the country. It flows through Bangkok and then into the Gulf of Thailand . On many old European maps, the river is named the Mae Nam (แม่น้ำ), the Thai word for "river" (literally, "motherly water"). Irish surveyor and cartographer James McCarthy , F.R.G.S. , who served as Director-General of the Siamese Government Surveys prior to establishment of the Royal Thai Survey Department , wrote in his account, " Mae Nam
1035-432: The critically endangered giant barb (wild populations have been extirpated from Chao Phraya, but remain elsewhere), critically endangered giant pangasius , and endangered giant freshwater stingray . The critically endangered red-tailed black shark , a small colourful cyprinid that is endemic to Chao Phraya, is commonly seen in the aquarium trade where it is bred in large numbers, but the only remaining wild population
1080-480: The fish species known from the Chao Phraya–Mae Klong, only about 50 are absent from the Mekong. There has been extensive habitat destruction (pollution, dams , and drainage for irrigation ) in the Chao Phraya basin and overfishing also presents a problem. Within mainland Southeast Asia , the only freshwater region with similar high levels of threat is the lower Mekong. It has been estimated that only around 30 native fish species still are able to reproduce in
1125-560: The kingdoms that succeeded the Lavo kingdom, forming the bases of the Ayodhaya kingdom, that was later incorporated into the Ayutthaya Kingdom in the 14th century, which itself was precursor of modern Thailand (known formerly as Siam), the river became very significant after the establishment of Rattanakosin (Bangkok) in 1782 on its east bank, the location of Bangkok on the east bank of Chao Phraya River ensured protection to Siamese kingdom from
1170-400: The land upon which falling rain drains into these bodies of water, form the Chao Phraya watershed . The Chao Phraya watershed is the largest watershed in Thailand, covering approximately 35 percent of the nation's land, and draining an area of 157,924 square kilometres (60,975 sq mi). The watershed is divided into the following basins: To the west, the central plain of Thailand
1215-530: The main river and exits in the Gulf of Thailand about 35 kilometres (22 mi) west of Bangkok in Samut Sakhon . In the low alluvial plain which begins below the Chao Phraya Dam , there are many small canals ( khlong ) which split off from the main river. The khlongs are used for the irrigation of the region's rice paddies. The rough coordinates of the river are 13 N, 100 E. This area has
1260-440: The mainstream of the Chao Phraya River. The catfish Platytropius siamensis is endemic to Chao Phraya and Bang Pakong , but has not been recorded since the 1970s and is considered extinct . Recent records of the near-endemic cyprinid Balantiocheilos ambusticauda are also lacking and it is possibly extinct. Three of the largest freshwater fish in the world are native to the river, but these are all seriously threatened:
1305-605: The middle Mekong (the lower Mekong fauna more closely resembles that of the eastern Malay Peninsula ). It is believed that the upper Mekong was connected to Chao Phraya (rather than present-day lower Mekong) until the Quaternary , which explains the similarities in their river faunas. This included the Nan River basin, a tributary of the Chao Phraya, which is home to a number of taxa (for example, Ambastaia nigrolineata and Sectoria ) otherwise only known from Mekong. Of
1350-665: The most commonly accepted source, which is the confluence of the Ping and Nan River in Nakhon Sawan, the river measures 372 km (231 mi). However, when measured from the longest source, which is the origin point of the Nan River in the Luang Prabang Range , the river measures 1,112 km (691 mi). The expanse of the Chao Phraya River and its tributaries, i.e., the Chao Phraya river system, together with
1395-513: The mouth of Chao Phraya at Bangkok's Bang Khun Thian District as "very poor", worse than in 2014, and their findings indicated large amounts of wastewater were discharged into the river from households, industry, and agriculture. In addition, 4,000 metric tons of plastic flows down the river into the Gulf of Thailand every year. To counter this, Thailand's Department of Marine and Coastal Resources (DMCR) signed an agreement with The Ocean Cleanup organization to deploy an Interceptor Original, one of
Chinde River - Misplaced Pages Continue
1440-486: The nation's political border, because isolation in this area was prevented by the ease of transportation along the lowlands surrounding the Gulf of Thailand, allowing a unified Thai civilisation to extend beyond the watershed without issue. The slightly higher northern plains have been farmed for centuries and saw a major change from the 13th century during the Sukhothai Kingdom in the 13th and 14th centuries and
1485-845: The northeast bank of Hongze Lake, passes the Huaishuhe River to the north of Lianyungang city, and flows into Haizhou Bay through the Hongkou. The Tha Chin River and Noi River are distributaries of the Chao Phraya River in Thailand , splitting off from the latter about 200 kilometers upstream from the Bay of Bangkok . The Brantas River in East Java , Indonesia , branches off into two distributaries, Mas River , also known as Surabaya River, and Porong River . A number of
1530-583: The original habitat and wildlife by comparing it with neighbouring countries. It is believed that the area would have consisted of freshwater swamps inland and salty mangroves on the coast and the river estuaries. The swamp would have been covered in Phragmites marsh grasses. Today there is a small area of this remaining in Khao Sam Roi Yot National Park , a relic of the original landscape. As so much has been cleared or altered
1575-483: The plains of the Ping and the Nan the elevation is over 20 m. Then the mountains that are the natural boundary of the Chao Praya watershed form a divide , which has, to some degree, historically isolated Thailand from other Southeast Asian civilisations. In northern Thailand the divide roughly corresponds to a long section of the political border of the country today. Southern portions of the divide's boundary correspond less to
1620-551: The potential for creating large protected areas to preserve original habitat no longer exists. However much wildlife does remain in the rice fields and steps may be taken to preserve these as urban and industrial development on the plains is ongoing and the Industrial Estate Authority of Thailand has very little control or planning over this. Particular threats come from the conversion of rice paddies to large-scale production of prawns by pumping in seawater, and
1665-563: The river and rejoins it later. In North America such a branching river is called a braided river . In Louisiana , the Atchafalaya River is an important distributary of the Mississippi River . Because the Atchafalaya takes a steeper route to the Gulf of Mexico than does the Mississippi, over several decades the Atchafalaya has captured more and more of the Mississippi's flow, after the Mississippi meandered into
1710-473: The river has since changed to follow many of these canals. Provinces along the Chao Phraya include, from north to south, Nakhon Sawan Province , Uthai Thani Province , Chai Nat Province , Sing Buri Province , Ang Thong Province , Ayutthaya Province , Pathum Thani Province , Nonthaburi Province , Bangkok , and Samut Prakan Province . These cities are among the most historically significant and densely populated settlements of Thailand due to their access to
1755-749: The rivers and canals of the city, including commuter lines . The principal tributaries of the Chao Phraya River are the Pa Sak River , the Sakae Krang River , the Nan River (along with its principal confluent the Yom River ), the Ping River (with its principal confluent, the Wang River ), and the Tha Chin River . Each of these tributaries (and the Chao Phraya itself) is augmented by minor tributaries referred to as khwae . All of
1800-619: The rivers that flow inland from Australia's Great Dividing Range form distributaries, most of which flow only intermittently during times of high river levels and end in shallow lakes or simply peter out in the deserts. Yarriambiack Creek , which flows from the Wimmera River into Lake Coorong, and Tyrrell Creek, which flows from the Avoca River into Lake Tyrrell , are two distributaries in Victoria . The Narran River flows from
1845-646: The tributaries, including the lesser khwae, form an extensive tree-like pattern, with branches flowing through nearly every province in central and northern Thailand . None of the tributaries of the Chao Phraya extend beyond the nation's borders. The Nan and the Yom River flow nearly parallel from Phitsanulok to Chumsaeng in the north of Nakhon Sawan Province. The Wang River enters the Ping River near Sam Ngao district in Tak Province . When measured from
Chinde River - Misplaced Pages Continue
1890-572: The two arms. Many of the rivers crossing the Canterbury Plains in the central South Island are braided rivers , and several of these split into separate branches before reaching the coast. Notable among these is the Rangitata River , the two arms of which are separated by the low-lying Rangitata Island . Chao Phraya River The Chao Phraya River is the major river in Thailand , with its low alluvial plain forming
1935-403: The use of pesticides to eliminate the introduced snail, Pomacea canaliculata , which damages rice plants. There are populations of threatened birds, including colonies of breeding water birds such as the world's largest populations of the near-threatened Asian openbill ( Anastomus oscitans ), and other birds such as the wintering black kite ( Milvus migrans ). Endemic mammals that remain are
1980-474: The waterway. Major bridges cross the Chao Phraya in Bangkok: the Rama VI railroad bridge; Phra Pin-klao near the Grand Palace ; Rama VIII , a single tower asymmetrical cable-stayed bridge; Rama IX , a semi-symmetric cable-stayed bridge; and Mega Bridge , on the Industrial Ring Road. In Bangkok, the Chao Phraya is a major transportation artery for a network of river buses, cross-river ferries, and water taxis ("longtails"). More than 15 boat lines operate on
2025-423: The wildlife that once inhabited these plains has disappeared, including a large number of fish in the river systems, birds such as vultures, the Oriental darter ( Anhinga melanogaster ), white-eyed river martin ( Pseudochelidon sirintarae ), the sarus crane ( Grus antigone ) and animals such as tigers , Asian elephants , Javan rhinoceroses , and the much-hunted Schomburgk's deer . Today we can only guess at
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