sedimentation setting on Arsenic Bank throughout Holocene time have not changed 
significantly. These modes of sedimentation include in situ accumulation of wave¬ 
generated skeletal debris and allochthonous debris, including Pleistocene rock 
fragments, from adjacent areas. The presence of large Pleistocene rock fragments 
indicates that storms account for significant episodic deposition on the bioherm. 
Vertical and lateral accretion of the bank is the result of the framework organisms 
adapting to areas subject to high wave and current energy. 
1980 0 
Aisner, J. A. (1980) Origin and development of Arsenic Bank, a Holocene biotherm in 
southwestern Florida Bay. Fla. Sci.. 43(suppl. 1):43-4. 
[NO COPY OF PAPER AVAILABLE. Narrative same as in Aisner (1980).] 
1980 0 
Davies, T. D., and W. Spackman (1980) The palynology of the peats of Florida Bay. 
Palvnoloov . 4:238. 
[ABSTRACT ONLY. DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Five hundred 
and seventy-three sites were probed in Florida Bay to establish the thickness and areal 
extent of Recent sub-marl peat. Cores were taken from Ninemile Bank, Spy Key- 
Panhandle Key Bank, Joe Kemp Key, Cluett Key, Jim Foot Key, Samphire Key, Man-of- 
War Key, Shell Key, Panhandle Key, Spy Key, Russell Key, Eagle Key, Crane Key, and 
Pigeon Key. The peat is more extensive than heretofore recorded and commonly occurs 
as the basal sediment beneath numerous islands and "banks." Normally, the peat is 
overlain by a marine carbonate but in one case it forms the entire sedimentary 
sequence of 11 ft 5 in. Six cores were investigated petrographically and 
palynologically. In all, a clearly defined transgressive sequence was encountered with 
the basal peats representing freshwater environments of both marsh and hammock 
types. The freshwater peats are overlain by brackish and then by "marine" peats, 
unless the peat sequence is truncated by an unconformity, in which case the overlying 
sediment is a marine carbonate. The latter may contain one or more lenses of 
Rhizophora or Avicennia peat. In many instances, the initially-formed peat had been 
extensively intruded by roots of younger plants growing in overlying environments, 
which were substantially different from the environments responsible for the original 
peat. This usually results in considerable degradation of the original peat and this, 
compounded with the addition of new plant material, produces a new "secondary" peat 
type. Hence, proper interpretation of the true ecological sequence represented by the 
peat sediment becomes difficult. Study of the pollen content of each peat type enables 
the accurate recognition of the environment responsible for formation of the "primary" 
peat type and thus complements the petrographic approach to the study of phytogenic 
sediments. 
1980 0 
Davis, G. E. (1980) Juvenile spiny lobster management or how to make the most of what 
you get. Fisheries, 5(2):57-62. 
[NO COPY OF PAPER AVAILABLE. ABSTRACT FROM SCHMIDT (1991).] Larval production 
and survival, equitable allocation and efficient harvest among fishermen, and 
maximization of yield per postlarval recruit are identified as the major elements 
amenable to management actions in spiny lobster fisheries. A step down diagram is 
provided which illustrates the logical relationship among the three elements, the 
overall fishery objective of an optimum yield and a description of the relationship 
between the factors involved in improving the yield per postlarval recruit. The factors 
discussed in the paper are: minimum harvest size, growth values, mortality rates and 
256 
