@article{fdi:43850, title = {{D}istribution of carbon in a tropical hypersaline estuary, the {C}asamance ({S}enegal, {W}est {A}frica)}, author = {{P}ag{\`e}s, {J}ean and {L}emoalle, {J}acques}, editor = {}, language = {{ENG}}, abstract = {{T}he {C}asamance estuary, on the coast of {S}enegal, is an inverse hypersaline estuary : salinity increases landward, and dry season salinity values are up to 172 psu due to the evaporation of seawater. {D}issolved inorganic carbon ({DIC}) concentrations decreased landward as a negative linear function of salinity. {T}hermodynamic modelling and the absence of {C}a{CO}3 in the sediments indicate that this loss of {DIC} was not due to calcite precipitation in the main water body. {T}he intermost, almost landlocked, waters contained high phytoplankton biomass ... and high concentrations of allochthonous dissolved organic carbon. {P}hotosynthetic uptake of {DIC} and subsequent particulate organic carbon sedimentation is proposed as hypothetical explanation of the relationship between {DIC} and salinity; localized overheating in shallow waters might also be involved. ({D}'apr{\`e}s r{\'e}sum{\'e} d'auteur)}, keywords = {{ESTUAIRE} ; {GEOCHIMIE} ; {CARBONE} ; {DISTRIBUTION} {SPATIALE} ; {MILIEU} {HYPERHALIN} ; {SENEGAL} ; {CASAMANCE} {ESTUAIRE}}, booktitle = {}, journal = {{E}stuaries}, volume = {18}, numero = {3}, pages = {456--468}, ISSN = {0160-8347}, year = {1995}, DOI = {10.2307/1352364}, URL = {https://www.documentation.ird.fr/hor/fdi:43850}, }