reaches of the coast. The Florida Bay seagrass bed contained about twice the short- 
shoot density of both T. testudinum and S. filiforme for data averaged over all depths, 
and about four times the average short-shoot density of both species in shallow water 
compared with the Big Bend seagrass bed. The differences in average seagrass 
abundance between Florida Bay and the Big Bend area may be a consequence of the 
effects of greater seasonal solar radiation and water temperature fluctuations 
experienced by plants in the northern bed, which lies at the northern distribution limit 
for American Tropical seagrasses. 
1975 0 
DeFelice, D. R. (1975) Model studies of epiphytic and epipelic diatoms. Geol. Soc. Amer. 
Abs.. 7(7): 1048. 
[NO COPY OF PAPER AVAILABLE. ABSTRACT FROM SCHMIDT (1991).] Studies on the 
diatoms of northeast Florida Bay resulted in the construction of models utilizing factor- 
vector analysis and species diversity indices which identified four distinct floras. Two 
of these were epiphytic floras living on Thalassia which were characterized by the 
dominant species Cocconeis placentula, Mastigloia crucicula, M. ovata, and Nitzschia 
closterium. The other two were epipelic floras living on the carbonate mud substratum 
which were characterized by the dominant species Cyclotella striata, Rhopalodia 
gibberula, Nitzschia panduriformis, Amphora actiuscula, A. coffeaiformis, and 
Fragilaria crotonensis. The majority of the 162 diatom species were identified in both 
the epiphytic and epipelic floras. The epipelic flora were significantly more diverse and 
a general trend was found of increased diversity in both the epipelic and epiphytic 
habitats, away from the Everglades and the Florida Keys. 
1975 0 
Multer, H. G. (ed.). (1975) Field guide to some carbonate rock environments; Florida Keys 
and western Bahamas. Contrib. No. 40. Dept, of Earth Science, Fairleigh Dickinson 
University, Madison, NJ. 175 pp. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] This is a field guide to the 
carbonate environments of the Florida Keys and the Bahamas Bank. Aereal and 
underwater photographs are included in the citation. 
1975 - 1979 
Davis, G. E., and J. W. Dodrill (1980) Marine parks and sanctuaries for spiny lobster 
fisheries management. Proc. Gulf Carib. Fish. Inst. . 32:194-207. 
[ABSTRACT IN SPANISH. SUMMARY PAPER BASED ON PREVIOUS STUDIES.] Los parques 
maritimos podrian proveer servicios valiosos para los cientificos y administradores 
pesqueros si estuvieran libres de los impactos de la captura. Los estudios de la langosta 
espinosa en cuatro parques nacionales de los Estados Unidos se utilizan para describir 
beneficios potenciales por repoblacion, conservacion de la variabilidad genetica; 
proveen oportunidades educacionales, deportivas y esteticas; actuan como base para el 
estudio y evaluacion de programas de administracion; y proveen poblaciones virgenes 
para los estimados de la produccion sostenida. En la Florida, tres parques nacionales 
contienen amplios recursos de langosta espinosa principalmente Panulirus argus. El 
Monumento Nacional Fort Jefferson en las Dry Tortugas cubre 190 km 2 de arrecifes de 
corales y placeres de grama marina que mantienen langostas espinosas adultas y 
juveniles. El Monumento Nacional Biscayne, al sur de Miami en la parte norte de los 
cayos de la Florida, incluye 190 km 2 de laguna tropical en el sur de la Bahia Biscayne y 
200 km 2 de arrecifes de corales y placeres al este de los cayos. Juveniles de langosta 
espinosa ocupan cerca de 1,000 km 2 de grama marina y del fondo dominado por 
octocorales en la Bahia de la Florida dentro del Parque Nacional de los Everglades. En el 
Parque Nacional de las Islas Virgenes, cerca de 230 km 2 de arrecifes de coral costeros 
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