AREA JAM-FEB MAR.-APR. MAY-JUN. JUL-AU6. SEP-OCT NOV.-OEC. 



E*N*EN EN EN EN EN 



1954 



A 



B 



1955 

 A 



B 



1956 

 A 



B 



1957 

 A 



rr\r:E\r:F\n:} 



A A 



u:\r:nmwn 



E = ESTUARINE STATIONS 

 N= NERITIC STATIONS 



A A 



G.. breve per liter (mean values) 



D □ □"B E B ■ 



.I-.9 I -10 11-1000 1000- 10,000- 100,000- >500,000 



10,000 100,000 500,000 



Figure 6. — Bimonthly occurrence and numbers of G. breve by areas in the surface waters of the 



west Florida coast (1954-57). 



