Location, depth, construction materials, spon- 

 sor, and date of construction of reefs are listed 

 below. 



1. Sarasota Bay, 1 nautical mile (1.9 km) west 

 of Bolees Creek; depth 9 ft (2.7 m) ; tire-con- 

 crete units (Woodburn, 1966); sponsored by 

 Manatee County, 1964-65. 



2. Manatee River, 100 yards (91 m) south of 

 Snead Point; depth 15 ft (4.6 m) ; tire-concrete 

 units (Woodburn, 1966); sponsored by Manatee 

 County, 1964. 



3. Tampa Bay, 2.8 nautical miles (5.2 km) 

 east of downtown St. Petersburg; depth 17 ft 

 (5.2 m). 



4. Pensacola Bay, off Escambia County end of 

 old bay bridge that is converted to a fishing pier 

 by removal of center span ; 18 ft (5.5 m); metal 

 junk; sponsored by Fiesta of Five Flags Asso- 

 ciation. 



Two comprehensive guides to the design, con- 

 struction and use of artificial reefs are those of 

 Carlisle, Turner, and Ebert (1964) and Unger 

 ( 1 966 ) . Diver-scientists documented the attrac- 

 tion of bait fish and jacks to artificial structures 

 in shallow coastal waters off Panama City, Fla. 

 The structure that attracted most fish was 

 shaped like a pup tent — geometrically, a right 

 prism — and was suspended at mid-depth (Klima 

 and Wickham, 1971). 



POPULATION 



The 1970 census showed that Americans con- 

 tinued to move toward warmer climates and to- 

 ward the shore. The trend is illustrated vividly 

 by total population of the counties bordering 

 estuaries of the Florida Gulf coast. 



1930 614,616 



1940 847,896 



1950 1,338,359 



1960 2,448,210 



1970 3,320,226 



The year 1930 is listed first, above, because the 

 U.S. census of 1930 was the first to include all 

 of the counties under consideration. 



We have compiled the available population 

 data by county, city, and estuarine study area 

 (Table 5). Note that Dade County is included 

 because it borders Florida Bay. 



Figure 38 illustrates the distribution of pop- 

 ulation in 1960. Population density was greatest 

 in the Tampa Bay area and next greatest in the 

 Pensacola Bay area, a pattern maintained by re- 



Figure 38. — The distribution of population on the west 

 coast of Florida, 1960 (after Raisz, 1964). 



GAIN AND LOSS OF POPULATION- 

 WEST COAST OF FLORIDA 



| Very fast growing 



Fast growing 

 I Medium growing 

 | Slow growing 



t I Federal land 



Figure 39. — The gain and loss of population on the west 

 coast of Florida from 1950 to 1960 (after Raisz, 1964). 



suits of the 1970 census. Pinellas County gained 

 far more residents than any other west coast 

 county making it the most populous county on 

 the Gulf coast of Florida for the first time. 



Growth was most rapid from the vicinity of 

 Tampa Bay southward (Fig. 39). The pattern 

 of growth remained the same from 1960 to 1970 

 except that growth slowed somewhat in the 

 coastal communities of the western panhandle. 



88 



