The Sangu River is a river in

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

and

Bangladesh Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...

. Its source is in the North Arakan Hills of

, located at 21°13´N 92°37´E. The Arakan Hills form the boundary between Arakan and the

Chittagong Hill Tracts The Chittagong Hill Tracts (), often shortened to simply the Hill Tracts and abbreviated to CHT, refers to the three hilly districts within the Chittagong Division in southeastern Bangladesh, bordering India and Myanmar (Burma) in the east: Kh ...

. It follows a northerly circuitous course in the hill tracts and then enters

near Remaikri, Thanchi Upazila,

Bandarban District Bandarban District (), officially Bandarban Hill District, is a district in South-Eastern Bangladesh, and a part of the Chittagong Division. It is one of the three hill districts of Bangladesh and a part of the Chittagong Hill Tracts, the others ...

, from the east. It flows north through Thanchi, Rowangchhari and Bandarban Sadar Upazilas of Bandarban district. It then flows west through Satkania and Banshkhali Upazilas in

Chittagong district Chittagong District (), ( Chatgaiya: Sitang/Chatga), officially Chattogram District, is a district located in south-eastern Bangladesh. It is a part of the Chittagong Division. Due to its geographical location, Chittagong is classified as a s ...

and flows into the

Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean. Geographically it is positioned between the Indian subcontinent and the Mainland Southeast Asia, Indochinese peninsula, located below the Bengal region. Many South Asian and Southe ...

near

Chittagong Chittagong ( ), officially Chattogram, (, ) (, or ) is the second-largest city in Bangladesh. Home to the Port of Chittagong, it is the busiest port in Bangladesh and the Bay of Bengal. The city is also the business capital of Bangladesh. It ...

, at 22°6´N 91°51´E, or about south of the mouth of the Karnafuli River. The length of the river is of which are located within

. The major tributaries of the river are the Chand Khali Nadi and Dolukhal. The Chand Khali Nadi flows through the Patiya Plains, and the Dolukhal drains into the Satkania Plains. Another tributary is the Kumira Khali, which drains into the Kutubdia Channel. It has a connection with the Karnafuli River through the Chand Khali River. Its estimated annual flow is 4.5 million acre-feet. The Sangu River drainage basin has a total area of . The river drains Banshkhali, Satkania, and

Patiya Upazila Patiya () is an upazila of Chattogram District in Chattogram Division, Bangladesh. History During the British rule, a police station(thana) was established in Patiya in 1845. It was upgraded to an ''upazila'' in 1984. The region saw revolution ...

s. In 1876,

William Wilson Hunter Sir William Wilson Hunter (15 July 18406 February 1900) was a Scottish historian, statistician, a compiler and a member of the Indian Civil Service. He is most known for ''The Imperial Gazetteer of India'' on which he started working in 1869, ...

described the river as shallow, but navigable year round by large cargo boats for a distance of . He also mentioned considerable river traffic at Bandarban. A century later the ''Bangladesh District Gazetteer'' for the area said the river is not navigable late in the dry season. In its upper course there are two waterfalls and several rapids. The offshore Sangu Gas Field is located in the Bay of Bengal about southwest of

at a depth of .

Ecology

Finfish in the Sangu River include 106 native species, among them several species of

carp The term carp (: carp) is a generic common name for numerous species of freshwater fish from the family (biology), family Cyprinidae, a very large clade of ray-finned fish mostly native to Eurasia. While carp are prized game fish, quarries and a ...

and

gobies Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising over 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and the fam ...

. Three non-native species have been found in the river:

bighead carp The bighead carp (''Hypophthalmichthys nobilis'') is a species of cyprinid freshwater fish native to East Asia, and is one of several Asian carps introduced into North America. It is one of the most intensively exploited fishes in fish farming ...

silver carp The silver carp or silverfin (''Hypophthalmichthys molitrix'') is a species of freshwater cyprinid fish, a variety of Asian carp native to China and eastern Siberia, from the Amur River drainage in the north to the Xi Jiang River drainage in ...

, and

Nile tilapia The Nile tilapia (''Oreochromis niloticus'') is a species of tilapia, a cichlid occurring naturally in parts of Africa (such as its namesake Nile River) and the Levant, though numerous introduced populations exist outside its natural range. T ...

. In addition to finfish, the river supports 16 species of prawns and 2 species of crabs.

Ganges river dolphin The Ganges river dolphin (''Platanista gangetica'') is a species of freshwater dolphin classified in the family Platanistidae. It lives in the Ganges and related rivers of South Asia, namely in the countries of India, Nepal, and Bangladesh. It ...

s are found in the river, especially below the Dohazari Bridge.

References

External links

Banshkhali Upazila Rivers of Bangladesh Rivers of Chittagong Division Satkania Upazila {{Bangladesh-river-stub

Ecology

See also

References

External links