294 ALEEM 



Fig. 1 



Chart showing the distribution of Posidonia oceanica and Cymodocea 

 nodosa in the sea area to the west of the rocky Ridge at Abu Qir, 

 Alexandria, together with the chief algal communities. The numbers 

 on the chart show depth in meters below sea level. 



Fig. 2 



Transect A-B on Plate 1, passing through the Posidonia-Reei and 

 showing the algal communities above and below sea level. Only a 

 small part of the Cymodocea prairies is shown at the back of the 

 Reef. For practical purposes the horizontal and vertical distances 

 are not represented to the same scale. 



Fig. 3 



Transect C-D on Plate 1, representing a horizontal distance of 40 

 meters to the west of the Ridge and showing littoral and sublittoral 

 algal communities, the Posidonia-Reef, the Cymodocea prairies and 

 the intervening Caulerpa prolifera belt. Again the horizontal and 

 vertical distances are drawn to different scales. Legends as in Fig. 1. 



Fig. 4 



Profile of a moderately exposed grotto below sea level at Abu Qir, 

 showing the distribution of the common algae and animals inhabiting 

 the grotto and the overlying platform. 



Fig. 5 



Distribution of algal and phanerogamic communities in the lagoon 

 lying to the east of the Ridge at Abu Qir. 



