per hour fished), and effort (vessel-hours fished) from 1966 to 1981 are displayed 
graphically in the paper. A strong positive relationship between quarterly (3-month 
landings and the average water level of the previous quarter was found for three 
quarters of the year. October through December water levels, followed by July through 
September water levels, may have had the greatest influence on annual landings. An 
inverse relationship between landings and water levels from April through June was 
not precluded. Information of this type is needed in order that the freshwater needs of 
estuarine-dependent marine organisms can be taken into account in water management 
planning. 
1967 0 
Berner, R. A. (1967) Comparative dissolution characteristics of carbonate minerals in the 
presence and absence of aqueous magnesium ion. Am. J. Sci. . 265(1 ):45-70. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Short term (5-25 hrs) steady 
state pH has been measured for the dissolution of reagent grade calcite, Deep Spring 
Lake dolomite, and Florida Bay sediment (aragonite plus 14 mode mole percent Mg 
calcite) in distilled water and 0.1 m MgCI 2 solution at 25°C and constant P C02 (1 and 
10-2.51 atm). Results indicate that calcite and dolomite can each show a constant ion 
activity product in the presence and absence of high concentrations of dissolved Mg +2 if 
unground samples are used and steady state approached from undersaturation. 
Measured ion activity product values are: calcite, 10 - 8.87; dolomite, 10 - 17.0. 
Unground Florida Bay sediment does not show simple reversible behavior in either 
solution. The solubility in distilled water is partly controlled by the rate of 
recrystallization of high-Mg calcite to more stable forms of CaC0 3 and is affected by 
the amount of surface area exposed to the solution. Dissolved Mg +2 causes a definite 
depression in the steady state pH and ion activity product of Florida Bay sediment 
below values predicted from the measure pH in distilled water at the same P C02 - The 
lowered pH is probably due in part to decreased rates of solution and loss of Mg from 
high-Mg calcite. Inhibition of low-Mg calcite nucleation may also result in a reversible 
equilibrium involving Mg ions and the grain surfaces. Experiments with mixed CaCI 2 - 
MgCI 2 solution demonstrate that this hypothetical Mg-enriched surface is not simply 
dolomite (non-exchangeable) or ideal, exchangeable CaC0 3 - MgCQ 3 . 
1967 
Costello, T. J., and D. M. Allen (1968) Florida Bay ecology studies. Circ. No. 268. Bureau of 
Commercial Fisheries, US Fish and Wildlife Service, Galveston, TX. 9-11. 
[ABSTRACT FROM SCHMIDT (1991).] The first year of an on-going benthic ecology 
study on post larval and juvenile pink shrimp in eastern Florida Bay was completed. 
Variations in abundance of postlarvae collected at Whale Harbor Channel and other Keys 
bridges by plankton nets were compared to juvenile shrimp densities on the nursery 
grounds. Associated organisms collected in suction dredge samples were used to 
determine habitat types preferred by pink shrimp. Peaks of abundance for small shrimp 
and associated organisms appeared in August and November and followed postlarvae 
abundance peaks on bridge sites by one month. 
1967 0 
Hoffmeister, J. E., K. W. Stockman, and H. G. Multer (1967) Miami limestone of Florida and 
its recent Bahamian counterpart. Geol. Soc. Amer, Bull., 78:175-90. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] The Miami Oolite, named by 
Sanford for the oolitic limestone of Pleistocene age which covers a large part of the 
southern tip of Florida, has been found to consist of two separate units: an upper unit, 
herein designated the oolitic facies; and a lower unit, called here the bryozoan facies. In 
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