LITERATURE CITED 



Gates, C. E. 1979. Line transect and related issues. In R. M. Cormack, G. P. Patil, and 

 D. S. Robson, eds. Sampling biological populations. Satellite Program in 

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Md. 



Irvine, A. Blair, J. E. Caffin, and H. I. Kochman. 1981. Aerial surveys for manatees and 

 dolphins in western peninsular Florida with notes on sighting of sea turtles 

 and crocodiles. U. S. Department of Interior, Fish and Wildlife Service, 

 Biological Services Program. FWS/OBS-80/50. 



Leipper, D. F. 1954. Physical oceanography of the Gulf of Mexico. Pages 119-137 in P. S. 

 Galtsoff, coord. Gulf of Mexico: its origin, waters, and marine life. U.S. 

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Lynch, S. A. 1954. Geology of the Gulf of Mexico. Pages 67-86 in P. S. Galtsoff, 

 coord. Gulf of Mexico: its origin, waters, and marine life. U.S. Fish Wildl. 

 Serv. Fish. Bull. 55(89). 



Marmer, H. A. 1954. Tides and sea level in the Gulf of Mexico. Pages 101-118 m P. S. 

 Galtsoff, coord. Gulf of Mexico: its origin, waters, and marine life. U.S. 

 Fish Wildl. Serv. Fish. Bull. 55(89). 



Nie, N. H., C. H. Hull, J. G. Jenkins, K. Steinbrenner, and D. H. Bent. 1975. Statistical 

 package for the social sciences, 2nd ed. McGraw-Hill, New York. 675 pp. 



Schmidly, D. J. 1981. Marine mammals of the Southeastern United States coast and the 

 Gulf of Mexico. U. S. Department of the Interior, Fish and Wildlife Service, 

 Biological Services Program. FWS/OBS-80/41. 



Schmidly, D. J., and S. H. Shane. 1978. A biological assessment of the cetacean fauna of 

 the Texas coast. National Technical Information Service, Springfield, Va. 

 PB-281763. 38 pp. 



Sturges, W., and J. P. Blaha. 1976. A western boundary current in the Gulf of Mexico. 

 Science 192:367-369. 



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