ABSTRACT 



This report presents original data giving 

 enumerations of the red tide organism, Gymnodinium 

 breve , and associated chemical and hydrographic 

 data for the period from February 1954 to July 1957. 

 Methods of collecting and analyzing samples are 

 described. It contains counts of G. breve, data on 

 salinity, pH, copper, inorganic phosphorus, total 

 phosphate, nitrate-nitrite, carbohydrates, and pro- 

 tein equivalents. These data were collected as 

 part of a study on the distribution and incidence 

 of G. breve , and related ecological conditions. 



