Seybouse River

Seybouse (وادي سيبوس)
The Seybouse in Guelma Province, Algeria
Basin
Main source	Medjez Amar, Tell Atlas Algeria
Source elevation	0
River mouth	Mediterranean Sea, near Annaba, Algeria
Watershed area	6,471 km² (2,498 mi²)
Countries	Algeria
Physiognomy
Length	225 km (140 mi)
Avg. discharge	11,5 m³/s (406 ft/s) at Guelma and Annaba

Seybouse (Arabic: وادي سيبوس‎ Oued Seybouse) is a river in northeastern Algeria, near the border with Tunisia. In Roman times, it was called the Ubus.

Course

The river runs for about 225 kilometres (140 mi), flowing through Guelma and Annaba Provinces. It starts in Medjez Amar, in the Tell Atlas north-west of Guelma Province. Its flows into the Mediterranean Sea at Seybouse (called Joannonville under French rule) to the south-east of the city of Annaba.^[1] Its mouth is just north of Sidi Salem, the site of Hippo Regius where Saint Augustine lived in AD 391–430.

The Seybouse is used for irrigation of agricultural areas, but it is becoming polluted because of industrial activities.^[2]

Characteristics

(As of 1998; source: ANRH)

Element	Amount
Flow	11.5 m³/s
Temperature	21.41 °C
pH	8.21
Oxygen saturation	36.61%
DBO^1	18.33
DCO²	124.3
Nitrates (NO3)	5.58
PO4^−3	2.29
Ammonium	9.18

References

1. The old metal bridge over the river Seybouse at Joannonville
2. Potential pollution of groundwater in the valley of the Seybouse River, north-eastern Algeria

External links

• (French) ANRH (National Agency for Water Resources)
• Augustine in Algeria
• 1902 Encyclopedia

Coordinates: 36°52′01″N 7°46′18″E / 36.86694°N 7.77167°E