PREFACE 



This report is published to provide coastal engineers with information 

 on the sublethal effects of suspended sediments on estuarine organisms. 

 The work reported is a part of a continuing program of research on the 

 ecological effects of coastal engineering activities. The report presents 

 the results of part of a 3-year laboratory study on the subject. The work 

 was carried out under a contract originating in the Office, Chief of 

 Engineers, which was monitored under the coastal ecology research program 

 of the U.S. Army Coastal Engineering Research Center (CERC) . 



The original contract report (CERC Contract No. DACW72-71-C-0003) was 

 prepared by Dr. J.M. O'Connor, D.A. Neumann, and Dr. J. A. Sherk, Jr., 

 while on the staff of the Natural Resources Institute, University of 

 Maryland, College Park, Maryland. Special acknowledgment is given to 

 A.M. Daley for her work, particularly as reported in Appendix C. 



A.K. Hurme and A.L. Meyer, CERC, technically reviewed, condensed, and 

 revised that part of the original report pertaining to the sublethal effects 

 of suspended solids on estuarine fish. Robert M. Yancey, Chief, Coastal 

 Ecology Branch, was CERC contract monitor for the report, under the general 

 supervision of R.P. Savage, Chief, Research Division. 



Comments on this publication are invited. 



Approved for publication in accordance with Public Law 166, 79th 

 Congress, approved 31 July 1945, as supplemented by Public Law 172, 88th 

 Congress, approved 7 November 1963. 



JOHN H. COUSINS 

 'Colonel, Corps of Engineers 

 Commander and Director 



