several large terebellids, Lima scabra^ Araa inibriaata, two 

 anemones, and several specimens of Cirri formia sp. (Table V) 



Station lOB, in thirty feet (9m), had an average of 0.8 Ascidia 

 nigra per square meter. Four species of green algae including 

 Udotea sp. and some five species of sabellids and serpulids were 

 also present in the study quadrat. 



FORAMINIFERA 



Foraminifera were examined quarterly from sand or mud near each 

 quadrat. The number of live Foraminifera per cc of wet sediment 

 are plotted in Figures 32 and 33. Analysis of these figures leads 

 to the following conclusions: 



1. Effluent from the desalination plant reduced numbers 

 of Foraminifera in the immediate vicinity of the 

 outfall but increased the number of Foraminifera 

 elsewhere in the harbor when compared to Control 

 Station 10. 



2. Shallow water stations were more densely populated 

 with Foraminifera than deep water stations in Safe 

 Harbor, except in April, 1971 when deep and shallow 

 foraminiferan population densities were almost the 

 same and in October, 1971 when there were more 

 Foraminifera at deep water stations which was nor- 

 mally the case at Control Station 10. 



3. Numbers of living Foraminifera increased from the 

 inner harbor seaward. Generally, they were highest 

 at stations in the turning basin. 



4. Shallow water Safe Harbor stations averaged higher 

 foraminiferan population densities than the Control 

 Station. Deep water Safe Harbor stations averaged 

 lower foraminiferan population densities then the 

 Control Station in October, 1970 were almost the 

 same in January and July, 1971, and considerably 

 higher than the control area in April and October, 1971. 



TRANSECTS 



T\<7o transects were monitored every month along the eastern edge 

 of the entrance canal. One transect extended along the desalination 

 plant sea wall 434.7 feet (132.5 meters) and covered a swath from the 

 intertidal zone down to the soft sediment at the bottom of the channel 



92 



