were analyzed to obtain spatial and temporal information on the development of a bloom of unicellular green halophilic algae DunalieUa parva and red halophilic Archaea. While the bacterial carotenoids did not produce a recognizable signal in the images, the presence of chlorophyll-containing algae in high densities in April 1992 was easily detected. The m a g e obtained at the time of the onset of the bloom suggested that the algal bloom onginated at the shallow areas near the shore of the

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... and was probably derived from resting cells that survived near the surface of the sediment. Information was also obtained on the mode of mixing of Dead Sea brines with freshwater from the Jordan River and from freshwater springs.