20 OOr 

 RAIN FALL 

 TAMPA AIRPORT 10 00 

 (INCHES) 



rriirii]^- 



[Ji 



ML. 



|-Long-tern 

 mean 



[TlllTllL r^w. 



TEMPERATURE 

 (C?) 



30 

 250 

 20 

 15.0 



35.00 



30.00 

 SALINITY 2500 

 (■>'..) 



2000 



1500 



TOTAL 

 PHOSPHATE PHOSPHORUS 



(ng.ot./i I 



CALCIUM 



(ug.ot/i ) 



ALKALINITY 

 (Hg.Ot 'I. of H*) I 00 



(Jig. of./i ) 



NITRATE-NITRITE NITROGEN 05 

 (ng Ot./I.) 



Upper Tompo Bay 

 Lower Tompo Boy 

 ■ 40 miles offshor* 



Chemical and physical parameters at three depths and three 

 selected stations from July I960 to March 1961. 



Salinity distribution was similar to that of last year. Occasionally 

 salinity slightly lower than in surrounding areas occurred offshore during the 

 Slimmer and fall months but to a lesser, degree than last year. Lower abun- 

 dance of G. breve this year compared to last suggests that last year's lower 

 salinity rnay be associated with increased growth of G. breve . 



66 



