Sampling station

Station description and land use

S1: 06˚25'45''N, 02˚23'12''E

Intermediate salinity (<2‰), touristic village and strong human pressure

S2: 06˚27'48''N, 02˚24'28''E

Intermediate salinity, near the Sô river and strong human pressure

S3: 06˚28'24''N, 02˚25'02''E

Intermediate salinity and very disturbed station

S4: 06˚26'41''N, 02˚25'16''E

Intermediate salinity, water current, centered and disrupted

S5: 06˚24'57''N, 02˚23'02''E

High salinity; near the outlet of wastewater and storm water of Cotonou and agglomerations; non dredged

S6: 06˚24'57''N, 02˚25'28''E

High salinity, the lake-channel interface, and very disturbed

S7: 06˚20'51''N, 02˚26'14''E

Little open Station, near the Atlantic Ocean and high salinity, dredged and very disturbed

S8: 06˚35'56''N, 02˚34'42''E

Station with very low salinity, mouth of Porto-Novo lagoon and Oueme river, and average human pressure