APPENDIX TABLES 



EXPLANATION OF COLUMN HEADINGS AND SYMBOLS 



Symbols for phytoplankton abundance : 



+ 1-24 cells per ml. 

 + + 25-99 cells per ml. 

 +++ 100 or more cells per ml. 



Symbols for zooplankton abundance : 



X 1-9 organisms per ml. 

 XX 10-49 organisn-is per ml. 

 XXX 50-100 organisms per ml. 



MS. No. 1016 



GPO •;06tl50 



