1979 0 
Davies, T. D. (1979) The carbonaceous sediments of Florida Bay and their anomalous sulfur 
content. Proc., IX Inter. Congr. of Carbon. Strat. and Geol., May 1979, Urbana, IL. 49. 
(ABSTRACT ONLY. DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Systematic 
sampling on a one-mile square grid pattern has revealed that a sub-marl, autochtonous 
peat is more widespread over Florida Bay then heretofore recorded. Cores from islands 
and banks were analyzed petrographically and palynologically and the peats were 
classified according to their source environment. The areal extent of the peat suggests 
that the vegetation of the Bay was more widespread in the past. The petrographic and 
palynologic studies, in all instances, demonstrated a clearly defined transgressive 
sequence. The basal peats represent freshwater environments of both marsh and forest 
types. These are overlain by brackish water, and then by marine peat, unless the peat 
sequence is truncated by an unconformity. Typically the peat is overlain by a marine 
carbonate mud, but in one case it makes up the entire sedimentary sequence of 3.53 m 
(or 139 in). Sixty-three peat samples from fifteen cores taken from Florida Bay were 
analyzed for sulfur forms. Despite its position below marine strata, the peat displayed 
unexpectedly low pyrite concentrations. Pyrite values ranged from 0.03% to 1.06% (d. 
b.) with the highest concentrations occurring at a site in the northeastern part of the 
Bay adjacent to the mainland. Evidence suggests that the low pyrite concentrations are 
the result of the lack of available Fe and hence a failure to fix the available S in the 
sulfide form. Total S concentrations in freshwater peats are typically below 1.0% for 
the chase of the basal freshwater peats in the Bay, the total S concentration appears to 
be affected by the type of overlying sediment. When the freshwater peat was overlain 
by brackish peat, it was found that the S content was consistently higher than when 
overlain by marine carbonate muds. 
1979 0 
Davis, G. E. (1979) An assessment of fishery management options in Everglades National 
Park, Florida. Rep. T-541. South Florida Research Center, Everglades National Park, 
Homestead, FL. 
[NO COPY OF PAPER AVAILABLE. ABSTRACT FROM SCHMIDT (1991).] This report 
presents an assessment which considers the biological and socio-economic impacts of 
several alternative fishery management actions for the Everglades National Park. The 
ultimate goal of this process is to provide the information upon which decisions can be 
made to produce regulations to effectively manage park fisheries in accordance with 
existing guidelines. Fish mortality must be compensated by natural reproduction and 
commercial and recreational fishing will be managed to maintain traditional age and size 
structure of fish populations. A conflict between both fisheries has intensified 
concerning the use of nets and unlimited harvest of gamefish species in the park. 
Alternative management options include prohibition of net fishing in all or certain parts 
of Florida Bay; establish specific bag limits for red drum, snook, sea trout, and gray 
snapper and/or a combination of species; prohibit harvest of lobster, stone crab and 
limit or restructure commercial fishing permits; and limit powerboat use and prohibit 
snook harvest in summer. Major socio-economic positive and negative impacts are 
given for each option. 
1979 0 
DeFelice, D. R. and G. W. Lynts (1979) Biotic and abiotic parameters affecting diversity in 
modern and ancient benthic diatom assemblages of Florida. Fla. Sci. .42. (Suppl.):44. 
[ABSTRACT ONLY. DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Study of 
benthic diatom communities in Florida Bay reveals that diversity in living diatom 
populations is a function of several biotic and abiotic parameters. Among the most 
important of these parameters is substrate, light quality, sediment particle size, and 
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