EFFECTS OF REDUCED TEMPERATURES 



445 



200 



150 



E 



E 



-z. 



LLI 



100 



Mar. June Aug. Nov. 



(a) 



Apr. June Mar. June Aug. Nov. 



(b) 



Apr. June 



200 



150 — 



E 

 E 



a 



100 



Mar. June Aug. Nov. 



(c) 



Apr. June Mar. June Aug. Nov. 



(d) 



Apr. June 



Fig. 3 Growth of Ascophyllum nodosum during surface discharge 

 and after relocation of the discharge through a diffuser at control, 

 Hodgson Island (a), and experimental, Bailey Point (b). Young Point 

 (c), and Foxbird Island (d), sites. A, the average of 1973—1974 and 

 1974-1975. A, 1975—1976. , 1976—1977. •, 1977-1978. 



DISCUSSION 



All measurable parameters of vigor indicate that previously 

 stressed populations of Ascophyllum on Foxbird Island have 

 recovered. With the relocation of the thermal discharge, apical tips 



