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CHAPTER III. OCEAN SERVICES/BIOLOGICAL PRODUCTIVITY 



Session Summary: Ocean Services/Biological 



Productivity. Ivar Babb 319 



Hazards to Divers in Polluted Waters. Kelly 



Cunningham & Rita R. Colwell 321 



Recent Progress in Experimental Saltwater 



Tilapia Culture in the Caribbean. Wade 0. 



Watanabe, Robert I. Wicklund, Bori L. 011a, 



& Douglas H. Ernst 337 



Preliminary Studies on the Early Life History 



of the Queen Conch Strombus gigas in the Exuma 



Cays, Bahamas. Robert I. Wicklund, Lucinda J. 



Hepp, & Geraldine A. Wenz 347 



Diel Patterns of Growth, Nitrogen Content, 



Herbivory, and Chemical Versus Morphological 



Defenses: Can Tropical Seaweeds Reduce Herbivory 



by Growing at Night? Mark E. Hay, Valerie J. Paul, 



Sara M. Lewis, Kirk Gustafson, Jane Tucker, & 



Robbin N. Trindell 365 



Preliminary Observations on the Capture of 



Flatfish by Trawls. C. G. Bublitz 403 



Manned Submersible and ROV Assessment of Ghost 



Gillnets on Jeffreys and Stellwagen Banks, Gulf 



of Maine. Richard A. Cooper, H. Arnold Carr, & 



Alan H. Hulbert 429 



