Seybouse River

{{Infobox river

| name = Seybouse

| native_name ={{native name|ar|وادي سيبوس}}

| image = GM Seybouse01.jpg

| image_caption = The Seybouse in Guelma Province, Algeria

| map = Seybouse Basin.png

| map_size =

| map_caption = The Seybouse catchment area

| map_alt =

| pushpin_map =

| pushpin_map_size =

| pushpin_map_caption=

| pushpin_map_alt =

| source1_location = Medjez Amar, Tell Atlas Algeria

| mouth_location = Mediterranean Sea, near Annaba, Algeria

| mouth_coordinates = {{Coord|36.8681|7.7741|format=dms|region:DZ|display=inline,title}}

| subdivision_type1 = Country

| subdivision_name1 = Algeria

| length = {{convert|225|km|abbr=on}}

| mouth_elevation = {{convert|0|m|ft|abbr=on}}

| source1_elevation =

| discharge1_avg = {{convert|11.5|m3/s|cuft/s|abbr=on}} at Guelma and Annaba

| basin_size = {{convert|6,471|km2|sqmi|abbr=on}}

}}

Seybouse (in {{langx|arq|rtl=yes|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 {{convert|225|km|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.[http://annaba.net.free.fr/html/joannonville.htm The old metal bridge over the river Seybouse at Joannonville] 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.[http://cat.inist.fr/?aModele=afficheN&cpsidt=15105543 Potential pollution of groundwater in the valley of the Seybouse River, north-eastern Algeria]

Characteristics

class="wikitable"

|+ (As of 1998; source: ANRH)

! Element

! Amount

bgcolor="#EFEFEF"

| Flow

| 11.5 m³/s

Temperature

| 21.41 °C

bgcolor="#EFEFEF"

| pH

| 8.21

| Oxygen saturation

| 36.61%

bgcolor="#EFEFEF"

| DBO¹

| 18.33

| DCO{{sup|2}}

| 124.3

bgcolor="#EFEFEF"

| Nitrates (NO₃)

| 5.58

| PO₄⁻³

| 2.29

bgcolor="#EFEFEF"

| Ammonium

| 9.18

References

External links

{{in lang|fr}} [http://www.anrh.dz/ ANRH (National Agency for Water Resources)]
[https://web.archive.org/web/20010511225631/http://ccat.sas.upenn.edu/jod/algeria/algeria-sitevisits.html Augustine in Algeria]
[http://www.1902encyclopedia.com/A/ALG/algeria-03.html 1902 Encyclopedia]

Category:Rivers of Algeria

Category:Geography of Guelma Province

Category:Geography of Annaba Province