Page 



45 Mean number of sabellids settling per 50 cm per 

 month at biological stations in Safe Harbor. 113 



46 Monthly average of diatom and protozoan species 



per 2 mm at Safe Harbor and control stations. 114 



47 Monthly averages of diatoms and protozoans per 



mm^ at Safe Harbor and control stations. 115 



48 Monthly averages of Vorttaetta settling at Safe 

 Harbor and control stations. 117 



49 Monthly averages of Nit^sohia longissima settling 



at Safe Harbor and control stations. 118 



50 Echinoid survival versus maximum percent effluent 

 during exposure, 121 



51 Average number of days survived by gorgonians 

 (Pterogorgia anceps) at "A" series stations from 



August, 1970 to March, 1971 and average percent 

 effluent at "B" series stations during this period. 125 



52 48 and 96-hour TLm acute bioassay of desalination 

 plant effluent on Lyteohinus V arte gat us . 127 



53 48 and 96-hour TLm acute bioassay of desalination 

 plant effluent on Ascidia nigra. 128 



54 48 and 96-hour TLm acute bioassay of desalination 

 plant effluent on Menippe meroenaria. 129 



55 24-hour, 50 percent reduction of photosynthetic 

 rate of ^halassia testudinum exposed to various 

 dilutions of desalination plant effluent. 130 



56 Comparison of toxic effects of copper in effluent 



and in seawater on Lyteohinus vaviegatus . 132 



57 Comparison of toxic effects of copper in effluent 



and in seawater on Ascidia nigra. 133 



58 Comparison of toxic effects of copper in effluent 



and in seawater on Menippe meroenaria. 134 



59 Comparison of toxic effects of copper in effluent 

 and in seawater on photosynthetic rates of 

 Thalassia testudinum. 135 



60 Maximum monthly barnacle growth compared to total 

 average dissolved copper exposure April, 19 71 to 

 October, 1971. 140 



xi 



