Bia (river)

Bia
South Ghana with the Bia
Data
location	Ghana Ivory Coast
River system	Bia
source	In Ghana , about 45 km southwest of the city of Sunyani
Source height	306  m
muzzle	In the Aby Lagoon coordinates: 5 ° 21 ′ 0 ″  N , 3 ° 12 ′ 5 ″  W 5 ° 21 ′ 0 ″  N , 3 ° 12 ′ 5 ″  W
Mouth height	0  m
Height difference	306 m
Bottom slope	1 ‰
length	300 km  , of which around 200 km in Ghana
Catchment area	9500 km²  , of which 6500 km² in Ghana
Drain	MQ	83 m³ / s
Left tributaries	Sui
Big cities	Sunyani
Small towns	Amoya

The Bia is a river in Ghana and the Ivory Coast .

geography

The source of the Bia is located in Ghana in the Western North Region about 45 km southwest of the city of Sunyani . The river flows roughly for the most part in a southerly direction, with the exception of a section between 6 ° 17 'and 6 ° north latitude, where the river has a south-westerly direction. The river crosses the Ghanaian-Ivorian border south of the Bia Tawaya National Park at 6 ° 5 ′ 47.5 ″  N , 3 ° 5 ′ 42.3 ″  W , before finally flowing into the Aby Lagoon , via which it is accessed to the Atlantic Ocean .

In the Ivory Coast, the Bia is dammed as a water reservoir and for the purpose of hydroelectric power generation by the Ayame Dam ( 5 ° 34 ′ 56 ″  N , 3 ° 9 ′ 30 ″  W ) (near the city of the same name, Ayame ; 5 ° 35 ′  N , 3 ° 7 ′  W ).

The water discharge of the Bia averages 83 m ³ / s at the mouth .

economy

The dam and the hydropower station at Ayame were built in colonial times. In 1959 the power plant with a capacity of 19,200 kW went on stream, the dam (Ayame I) was not completed until 1962 , and another dam (Ayame II) was added in 1965 .

environment

fauna

32 different fish species were registered in the river in the early 1960s.

Water quality

The pH of the water at the mouth varies between 6.5 and 7.5.

swell

• J.-P. Vanden Bossche, GM Bernacsek: Source book for the inland fishery resources of Africa: 2. , CIFA Technical Paper. No. 18.2, Rome, FAO, 1990, p. 411ff.