the mounds. It was found that the inner-bay has import mounds, the outer-bay has 
export mounds and that probably there is large-scale sediment transport out of the bay 
to account for overproduction of biogenic carbonate since it was flooded some 3700 yr 
ago. 
1985 0 
Dzou, l-P. L. (1985) In-situ and pyrolytic hydrocarbons in carbonate sediments from 
Florida Bay. M. S. Thesis. University of Texas at Dallas, Richardson, TX. 109 pp. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.) In the northern portion of Florida 
Bay, the sediments contain an average of 1.3% organic carbon and the bitumen content 
ranges from 230 to 310 pig/g, and averages 268 pg/g. In the more open southern and 
western portions, the sediments have 1% average organic carbon, and the bitumen 
content ranges from 270 to 360 pg/g and averages 360 pg/g. Hydrocarbons analyses 
were obtained on the bitumen extract of the organic matter from 28 core samples from 
Florida Bay. Column and gas chromatography were used to characterize the C 15 + 
fraction of the normal hydrocarbons. The distribution of the C 15+ normal paraffins in 
the northern portion of the Bay shows a bimodal distribution, with maxima at C 27 or 
C 29 and C 18 , and a marked predominance of odd- over even-carbon-number molecules 
in the C 23 to C 31 range. This distribution is characteristic of marine and land-plant 
sources of hydrocarbons. In contrast, the C 15+ normal hydrocarbons in the southern 
and western portions show a different bimodal distribution of n-alkanes, with maxima 
at C 17 or C 18 and C 23 or C 24 ; n-alkanes greater than C 25 with an odd-carbon-number 
predominance are essentially absent, indicating dominantly marine organisms as a 
major source of hydrocarbons. Anhydrous and hydrous pyrolysis of the modern 
carbonate sediments at 250°C for three days produced new hydrocarbons. The new 
hydrocarbon distributions resemble those typical of Upper Cretaceous carbonate rock 
extracts in South Florida and Silurian Salina-Al carbonate rock extracts in the 
Michigan Basin. A special feature observed in these hydrocarbon distributions is the 
even predominance of n-alkanes. The pattern is attributed to reduction of even carbon- 
numbered parent molecules (fatty acids and alcohols) in strongly reducing and 
hydrogenating sediments during laboratory pyrolysis and natural maturation. 
1985 
Heatwole, D. W., J. H. Hunt, and F. S. Kennedy (1988) Catch efficiencies of live lobster 
decoys and other attractants in the Florida spiny lobster fishery. Fla. Mar. Res. PubL 
0(44): 1-1 5. 
Studies reported in this paper are among several conducted by the Florida Department 
of Natural Resources to evaluate the efficacy of measures proposed to minimize or 
eliminate losses due to present fishery practices. Proposed measures include 
mandatory use of live wells to curtail exposure of lobsters to air and escape gaps to 
permit undersize lobsters to avoid capture in traps. To mitigate effects of regulatory 
measures which would decrease or eliminate use of shorts as bait and thereby reduce 
catch efficiency under present fishery conditions, testing was conducted to evaluate 
baiting alternatives. The present study was conducted near Marathon, to compare catch 
efficiency of shorts with three other conventional lobster baits, two artificially 
produced attractants, and unbaited traps. All baits were tested in both the Atlantic 
Ocean and Florida Bay to address the contention of fishermen that shorts are more 
effective attractants in the bay than in the ocean. 
1985 0 
Holliday, V. E. (1985) Mechanisms of deposition of a carbonate mud spit; Ramshorn Spit, 
eastern Florida Bay. M. S. Thesis. Lehigh University, Bethlehem, PA. 
295 
