DAYTON: EXPERIMENTAL STUDIES OF ALGAL CANOPY 



and sea cow populations in the Pleistocene (Jones 

 1967; Kenyon 1969; and Gard et al. 1972). This 

 relationship is nicely diagrammed in Scheffer's 

 (1973) touching story of the last day of the sea cow. 



ACKNOWLEDGMENTS 



I thank P. A. Lebednik for identifying all the 

 algae, for making all logistic and diving 

 arrangements, extensive diving help, and con- 

 tinuing editorial assistance. J. F. Palmisano and J. 

 A. Estes also made helpful editorial suggestions 

 and assisted the diving program. I thank V. Currie 

 and B. McNames for expert typing assistance and 

 R. B. Searles, D. Rivera, L. Dayton, M. Neushel, 

 and J. Pearse for helpful suggestions which have 

 improved the manuscript. I am very greatful to J. 

 Isakson, C. O'Clair, C. Simenstad, G. Tutmark, and 

 M. Wynne for logistic, diving, and taxonomic as- 

 sistance. All logistic support was provided under 

 AEC contract AT (26-l)-171 to Battelle Memorial 

 Institute, Columbus Laboratories. Publication was 

 supported by NSF grants GA-30877 and GV-32511, 

 Sea Grant GH-112, and the Marine Life Research 

 group at Scripps Institution of Oceanography. 



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