Bouvy Marc, Arfi Robert, Guiral Daniel. (1994). Short-term variations of seston characteristics in a shallow tropical lagoon : effect of wind-induced resuspension. Netherlands Journal of Aquatic Ecology, 28 (3-4), p. 433-440.
Titre du document
Short-term variations of seston characteristics in a shallow tropical lagoon : effect of wind-induced resuspension
Année de publication
1994
Type de document
Article
Auteurs
Bouvy Marc, Arfi Robert, Guiral Daniel
Source
Netherlands Journal of Aquatic Ecology, 1994,
28 (3-4), p. 433-440
In January 1993, a 24 hour survey based on an hourly sampling was conducted in a station (1 m depth) located in the Ebrié lagoon, Côte d'Ivoire, in order to determine short-term changes in seston quality and quantity and relate them to physical conditions. Water samples were collected just below the surface and at 0.9 m depth to assess the seston distribution in the water column. Located in an estuarine environment, the study site was submitted to periodic effect of tides with low currents. Under certain conditions, sediment resuspension by wind-induced waves was observed in the shallow parts of this ecosystem. From the analysis of hydrodynamic processes (tide, wind and sedimentation rates), four basic situations were distinguished in the course of the study : a period with no wind and high sedimentation rates, a period characterized by wind induced resuspension, followed by a period of sedimentation and finally, a period without wind during the second flood tide. (D'après résumé d'auteur)
