L'organisation hydrobiologique d'un bassin paralique de type bahira : la baie de Kalloni (Lesbos, Grèce)

Autre(s) titre(s) Hydrobiological organization of a bahira type paralic basin: Kalloni bay (Lesbos, Greece).
Type Article
Date 1997
Langue(s) Français
Auteur(s) Lefebvre A, Guelorget O, Perthuisot Jp, Courties C, Millet B
Affiliation(s) UNIV MONTPELLIER 2,UMR 5556,LAB HYDROBIOL MARINE,F-34095 MONTPELLIER 05,FRANCE
UNIV NANTES,LAB BIOGEOL,EAD 1708,F-44072 NANTES,FRANCE
UNIV LUMINY,CTR OCEANOL MARSEILLE,F-13288 MARSEILLE 09,FRANCE
Source Oceanologica Acta (0399-1784) (Gauthier-Villars), 1997 , Vol. 20 , N. 5 , P. 757-768
WOS© Times Cited 11
Résumé en anglais The deep, elongated paralic basin of Kalloni bay has been studied through comparisons between several computed hydrodynamical situations and data collected in similar situations from its water body. These include salinities and phytoplanktonic biomasses. Additionally, sedimentological data, which integrate the environmental variations on the long term, have been collected in order to help in understanding the average biogeological functioning of the system. Depending upon its direction and speed, wind forcing induces different salinity and phytoplanktonic patterns. These generally display rather weak gradients from the entrance and the axial deepest channel towards the farthest northeastern reaches of the basin. Moreover, the ranges of salinities and phytoplanktonic biomasses display a very low degree of restriction from the sea (confinement), while the global phytoplanktonic composition, analysed by flow cytometry, shows the prominent marine influence over the basin. The average hydrodynamical conditions are dominated by the axial influx of marine water on the bottom, and by the surface-reflux of basinal waters along both side banks. Such a prevailing configuration is also displayed by sedimentological features. Kalloni bay appears as one of the less confined systems in the Mediterranean region, due to its shape and bathymetry, the absence of a sill between the basin and the sea, and active exchanges with the sea under the influence of wind activity.
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Lefebvre A, Guelorget O, Perthuisot Jp, Courties C, Millet B (1997). L'organisation hydrobiologique d'un bassin paralique de type bahira : la baie de Kalloni (Lesbos, Grèce). Oceanologica Acta, 20(5), 757-768. Open Access version : https://archimer.ifremer.fr/doc/00093/20465/