PREFACE 



This report was prepared under Contract No. DACW 39-73-C-0115 with 

 the Gulf Coast Research Laboratory, Ocean Springs, Mississippi, for the 

 U. S. Army Engineer Waterways Experiment Station (WES). The study was 

 an extension of a previous investigation undertaken on the recommenda- 

 tion of the OCE Estuarine Ecological Consultants Board in an Interim 

 Report entitled "Effects of Engineering Activities on Coastal Ecology," 

 September 1969. 



The investigation was carried out under the general direction of 

 Dr. Gordon Gunter, Director Emeritus of the Gulf Coast Research Labora- 

 tory. Dr. A. Venkataramiah was the Principal Investigator, and he was 

 assisted by Dr. G. J. Lakshmi, Patricia Biesiot, and John D. Valleau. 



The contract was monitored by Mr. F. A. Herrmann, Jr., Assistant 

 Chief of the Hydraulics Laboratory, under the general supervision of 

 Mr. H. B. Simmons, Chief of the Hydraulics Laboratory. 



Directors of WES during the conduct of this study and the prep- 

 aration and publication of this report were BG E. D. Peixotto, CE, 

 COL G. H. Hilt, CE, and COL John L. Cannon, CE. Technical Director 

 was Mr. F. R. Brown. 



