Influence de chocs thermiques sur la croissance d'un dinoglagelle responsable d'eaux rouges: Scrippsiella faeroense (Paulsen) BALECH et SOAREZ

The growing development of thermonuclear electric plants on coastal areas drove the I.S.T.P.M. to carry out a number of impact studies. Previous works on the impact of the transit in the condensers on the phytoplankton have been published by the Pollution Biological Effects laboratory (Maggi el al., 1979 and 1980; Lassus and Maggi, 1980). Our results on the chlorophycea Dunaliella terliolecla demonstrated that thermic elevations from low temperatures stimulated its cellular development. Therefore, it seemed interesting to measure the effects of these thermic shocks on dinophyceae (or dinoflagellates), components, with diatoms, of the coastal phytoplankton, and main agents of the summer phenomena known as "red waters".