also took into account the fact that the IDOE Controlled Ecosystem 

 Pollution Program was focusing on the effects of trace metals on 

 planktonic communities. This report is an assessment of the first two- 

 year (1973-75) effort of the investigators of the Effects Program. 



The publication of this volume has resulted from the dedicated ef- 

 forts of the staff of IDOE including (visiting) Program Managers, 

 Dr. George Grice, Woods Hole Oceanographic Institution; Dr. Patrick 

 L. Parker, University of Texas, Marine Science Institute; Dr. C. S. 

 Giam and Dr. B. J. Presley, both of Texas A & M University, and 

 Program Secretary, Ms. S. Robinson. I am grateful to the conveners, 

 participants and special guests who participated in the meeting in 

 Sidney, British Columbia, especially the IDOE grantees whose data 

 resulted in the publication of this report. I would also like to thank 

 Drs. Tim Parsons and Dave Menzel for the hospitality extended to the 

 group at Sidney. 



Invaluable editorial assistance was rendered by Ms. Ruth Grundy 

 and Ms. Geraldine Ard. Cover and symbol were created by Ms. Dinah 

 Bowman. 



Feenan D. Jennings, Head 

 Office for the International Decade of Ocean Exploration 



