IIEI 1112 



SONDJ FMAMJ JA 



I — I — rn — I — I — I — I — I — I — I — I — I 



ltd ISI2 



SONDJFMAMJ JA 

 I I I I I I I I I I I I I 



20 

 t 



2D 



to 



40 

 21 





 21 



40 



10 



►f 



10 miles 



OKi hore 



Sla I 



3^2 mi lei 



Offshore 



Sla 2 



Terro Ceio Bay 

 S t a e 



C e n I r o I 

 Tampa Bay 



^4 



110 



It 



to 



40 

 20 

 t 

 21 

 4t 



to 



_ 100 



EgmonI Itey 

 Slo- 3 



Upper 

 Tampa Boy 



Sla. 10 



S 



o 



CenI rol 

 Lower Tampa Bay Old Tampa Bay 



S la 4 S la 11 



-H 



ioco Ciego Boy 

 Sla 5 



Upper 

 Old Tompo Boy 

 Sla 12 



110 

 it 

 tt 

 40 

 2t 

 I 

 2t 

 41 

 tt 

 II 



(to 



^oco Ciego Bo) 

 Slo 6 



Lower 

 Hilliborough Boy 

 Slo 13 



40 r- 



20 2 

 - 



20 2 



41 t 



Boca Ciega Bay 

 Slo 7 



Upper 

 Hillsborough Bo> 

 Slo 14 



Figure 3. — Monthly plankton volumes for the surface waters of Tampa Bay and the adjacent Gulf of Mexico, 

 September 19G1 through August 1962. Plankton volume is expressed as milliliters per 35 m.' of sea water. 



214 



U.S. FISH AND WILIFE SERVICE 



