Figure 3. — Southern Boca Ciega Bay in 1963 showing Pinellas County Bayway anil other baytill areas (photograph 



courtesy of Airllite, St. Petersburg, Fla. 



chlorophvll '/ and primary productivity),' and llie 

 r.S. AVeather Bureau (unpul)lished water tem- 

 perature data for Egmont Key).^ 



Sediments and infauna \vere collected with a 

 shovel in water as deep as 1 m. and with a bucket 

 dredge at greater depths (Taylor, 1965). A sub- 

 sample of about 500 cc. was withdrawn from each 

 bottom sample for sediment analysis. Each sub- 

 sample was sealed in a moist condition and later 

 analyzed at Florida State University.^ Particles of 

 sand size and larger were separated from silt and 



^ May. B. Z., and Lucius Johnson. On tile at Bureau uf 

 iConiniercial Fisheries Biological Laboratory', St. Petersi>urf: 

 Beach. Fla. 38706. 



^ On file at U.S. Weather Bureau. Tampa Internatiiuial .Virport. 

 Tampa, Fla. 33614. 



clay by wet sieving through a screen of 62-micron 

 mesh. Material remaining on the sieve was dried 

 and subdi\ided by use of a series of nested screens 

 mounted on a mechanical shaker. The fine frac- 

 tion that passed the 62-micron mesh was sized 

 electronically in a Coulter counter." Clay minerals 

 were examined by X-ray diffraction, and chemi- 

 cal analyses were made for carbonates, organic 

 carbon, and organic nitrogen. Statistical calcida- 

 tions were made by computer and included mean 



^ SeiUment anal.vses were under the direction of H. Grant 

 Goodell, Sedimentological Ijahoratory. Florida State University, 

 Tallahassee. Fla. 3230(5. 



*^ References to trade names in this publication do not imply 

 endorsement of commercial products. 



EFFECTS (IF HVDKATLIC DREDGIXt; AND COASTAL DEVELOPMENT IX BOCA CIEGA BAY. FLA. 



217 



