1. Environmental regulation of H₂ utilization (³H₂ exchange) among natural and laboratory populations of N₂ and non-N₂ fixing phytoplankton

   • Hans W. Paerl

   OriginalPaper Pages: 79 - 97

2. Respiration rates in heterotrophic, free-living protozoa

   • T. Fenchel
   • B. J. Finlay

   OriginalPaper Pages: 99 - 122

3. Chlorophylla and adenosine triphosphate levels in Antarctic and temperate lake sediments

   • G. M. Simmons Jr.
   • R. A. Wharton Jr.
   • D. Andersen

   OriginalPaper Pages: 123 - 135

4. A model for the density ofAeromonas hydrophila in Albemarle Sound, North Carolina

   • Terry C. Hazen

   OriginalPaper Pages: 137 - 153

5. Changes in water and sediment bacterial community structure in a lake receiving acid mine drainage

   • Raymond A. Wassel
   • Aaron L. Mills

   OriginalPaper Pages: 155 - 169

6. Occurrence ofCandida albicans in fresh gull feces in temperate and subtropical areas

   • John D. Buck

   OriginalPaper Pages: 171 - 176

7. A membrane adsorption-SEM technique for observing neuston organisms

   • James S. Maki
   • Charles C. Remsen

   OriginalPaper Pages: 177 - 183

8. Detection of mycoparasitism by infrared photomicrography

   • Yigal Elad
   • Zili Sadovski
   • Ilan Chet

   OriginalPaper Pages: 185 - 187