Samples were collected on 16 June (summer), 21 September (autumn), 

 and 16 December (winter) 1977, and on 26 March (spring) 1978. Samples 

 were obtained by scuba divers using a hand-driven polyvinyl chloride 

 (PVC'> coring tube with an inside diameter of 7.9 centimeters (Fig. 3). 



Figure 3. Core sampling of benthic fauna. 



