Seagrass One consists of five research projects: 



1. Man's Use of the Seagrass Ecosystem: Identification and 

 documentation of the contribution of seagrass ecosystems to 

 other food webs, especially those of direct importance to 

 humans, and to other direct human values of seagrasses such 

 as coastline stabilization (University of Alaska). 



2. Distribution of Seagrass Ecosystems: Collection and analysis 

 of current information on distribution of seagrasses and associ- 

 ated species in relation to patterns related to environmental 

 conditions and perturbation (University of Hawaii). 



3. The Production and Decomposition of Seagrasses: Analysis 

 of the producer-decomposer regulation including photosyn- 

 thesis, respiration, and secretion of dissolved organics and their 

 transfer to other organisms (Michigan State University). 



4. Environmental Tolerances of Seaerasses: Physiological in- 

 vestigation of the environmental tolerance limits of seagrasses 

 that determine the conditions under which the plants can grow 

 (University of Texas). 



.'i. Phenology and Transplanting of Seagrasses: Implementa- 

 tion of a worldwide system for providing knowledge on the 

 periodicity of events in the life history of seagrasses, especially 

 as related to climate and the start of long-term transplant 

 experiments (Seattle Pacific College). 



The field procram will consist of intensive studies at sev- 

 eral sites representing biogeographic zones where seagrass eco- 

 systems exist: the subarctic, the temperate, tropical, and sub- 

 tropical as well as stress conditions where pollution is a major 

 problem. 



Table 9. — Participants in Seagrass Ecosystem Study 



International Seagrass Committee 



Robert G. Wetzel (U.S.) Chairman 



C. Peter McRoy (U.S.) 



Patrick L. Parker (U.S.) 



Tom Fenchel (Denmark) 



C. den Hartog (The Netherlands) 



Akihiko Hattori (Japan) 



J. M. Peres (France) 



Seagrass One 



Executive Council: 



C. Peter McRoy, Program Director, University of Alaska 

 K. W. Bridges, University of Hawaii 

 Patrick L. Parker, University of Texas 



Project Coordinator: 

 Caria Helfferich 



Advisory Committee: 



Dieter MuellerDumbois, University of Hawaii 

 Norbert Untersteiner, University of Washington 

 David W. Menzel, University of Georgia 



Participants: 



C. Peter McRoy, University of Alaska 

 K. W. Bridges, University of Hawaii 

 Michael J. Klug, Michigan State University 

 Robert G. Wetzel, Michigan State University 

 Calvin McMillan, University of Texas 

 Ronald C. Phillips, Seattle Pacific College 

 J. C. Zieman, University of Virginia 

 John Ogden, Fairleigh Dickinson University 



42 



