Betsiboka River
| Betsiboka River | |
| River | |
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Rapids in the Betsiboka River
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| Country |  Madagascar |
|---|---|
| Region | Boeny |
| Tributaries | |
| - left | Ikopa River |
| - right | Kamoro River |
| City | Mahajanga, Ambato-Boeny |
| Source confluence | |
| - elevation | 1,755 m (5,758 ft) |
| Mouth | |
| - location | Bombetoka Bay, Mozambique Channel |
| - coordinates | Lua error in package.lua at line 80: module 'strict' not found. |
| Length | 525 km (326 mi) |
| Volume | 74.3 - 678 m3 (-23,869 cu ft) |
| Basin | 11,800 km2 (4,556 sq mi) |
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Map of Malagasy rivers (Betsiboka flows from the center to the northwestern coast).
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Betsiboka River is a Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). long river in central-north Madagascar. It flows northwestward and empties to Bombetoka Bay, forming a large delta. It originates to the east of Antananarivo. The river is surrounded in mangroves.[1] The river is distinct for its red-coloured water, which is caused by river sediments. The river carries an enormous amount of reddish-orange silt to the sea. Much of this silt is deposited at the mouth of the river or in the bay.
It is dramatic evidence of the catastrophic erosion of northwestern Madagascar.[2] Removal of the native forest for cultivation and pastureland during the past 50 years has led to massive annual soil losses approaching 250 metric tonnes per hectare (112 tons per acre) in some regions of the island, the largest amount recorded anywhere in the world. Several fish species are endemic to the river basin, including the three cichlids Paretroplus petiti, P. tsimoly and P. maculatus.
The Betsiboka's largest tributary, the Ikopa River, drains the capital city of Antananarivo.
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Betsiboka estuary.jpg
Betsiboka River estuary seen from space
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Betsiboka River September 22, 2003.jpg
The Betsiboka River in normal conditions
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Betsiboka River January 30, 2009.jpg
The Betsiboka River when flooded
References
- Floods in Madagascar at NASA Earth Observatory
- Sediment Laden Drainages at Lunar and Planetary Institute, USRA
- NASA: Earth from Space
