of shrimp; the limiting factor here may be the shallow substrates that restrict the 
growth of seagrasses. 
1965 - 1968 
Costello, T. J., D. M. Allen, and J. H. Hudson (1986) Distribution, seasonal abundance, and 
ecology of juvenile northern pink shrimp, Penaeus duorarum, in the Florida Bay area. NOAA 
Tech. Memo. NMFS-SEFC-161. NOAA/NMFS, Miami, FL. 84 pp. 
The Florida Bay area of south Florida contains important nursery grounds used by 
juveniles of the northern pink shrimp, Penaeus duorarum, before their migration to the 
offshore Grounds. Early juvenile shrimp were sampled in the Bay area from 1965 to 
1968; maximum concentrations of early juveniles were in the western Bay; few 
occurred in the eastern Bay. They occurred year-round and were most abundant from 
late summer to early winter in seagrasses. Initial distribution of the early juveniles in 
the Bay is effected by the flooding tide, which transports planktonic postlarval shrimp 
into the shallow nursery grounds where they settle as epibenthic postlarvae. The 
movement of postlarvae into the Bay is apparently facilitated by the rise in sea level 
from about April to October. Variations in sea level control the aereal extent of the 
shallow nursery grounds and may determine the abundance of early juveniles in the 
Bay, and the subsequent commercial production of adult shrimp on the offshore 
Tortugas Grounds. The postlarvae probably actively select areas of shoal grass, 
Halodule wrightii, for initial benthic settling. The early juveniles are closely associated 
with shoal grass as the primary habitat and may depend upon this species for survival. 
Optimum habitat for early juveniles is characterized by (1) relatively open marine 
water circulation with daily tidal exchange, and (2) broad intertidal or subtidal beds of 
shoal grass with high blade densities. Shoal grass, often favored by environmental 
disturbances, may be a critical factor in recruitment success of pink shrimp. 
1966 0 
Berner, R. A. (1966) Diagenesis of carbonate sediments: interaction of magnesium in 
seawater with mineral grains. Science . 153:188-191. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Samples of natural fine-grained 
carbonate sediment from Florida Bay, underwent mole-for-mole cation exchange with 
aqueous solutions of MgCI 2 and CaCI 2 in the laboratory. The exchange reaction, which 
involves the surface of the grains of sediments, can be essentially described by a 
simple mass action-law equation. Enrichment of Mg 2+ beyond the amounts found within 
particle interiors should take place on the surface of CaC0 3 sediments immersed in 
seawater; it may be on both exchangeable and unexchangeable sites. 
1 966 
Klukas, R. W. (1967) Factors affecting nesting success of loggerhead turtles at Cape Sable, 
Everglades National Park. Open File Rept. No. N1415. 58 P. South Florida Research Center, 
Everglades National Park, Homestead, FL. 
[NO COPY OF PAPER AVAILABLE. ABSTRACT FROM SCHMIDT (1991).] Efforts were 
initiated in spring 1966 to reduce the racoon population at Cape Sable by trapping in one 
area and setting aside another area in the rookery as a control area where no trapping 
was conducted. A comparison of the nesting success in the two areas indicated that 
live-trapping can be a very effective technique in controlling and reducing the amount 
of nest predation by racoons. Additional notes on the nesting success and behavior of 
loggerhead turtles nesting there, and data on the natural history of racoons near the 
rookery are provided. 
180 
