Florida Marine Research Institute. (200?). Maps of Caloosahatchee River and Mullock Creek. St. Petersburg, FL: The Institute.
http://www.floridamarine.org/features/view_article.asp?id=18850
(The maps were designed to show manatee abundance, boating activity, bathymetry data, and mortality information, and seagrass beds for both the Caloosahatchee River and Mullock Creek area.)

Haubold, Elsa. (2002). Special study of the Caloosahatchee River and Mullock Creek. St. Petersburg, FL: Florida Marine Research Institute.
http://www.floridamarine.org/engine/download_redirection_process.asp?file=caloosahatchee_full_re_5143.pdf&objid=18833&dltype=article
(Investigators examined manatee use of the Caloosahatchee River in Lee County eastward to the Edison Bridge and manatee use of Mullock Creek.)

O'Shea, T. J., et al. (1991). Epizootic of Florida manatees associated with a dinoflagellate bloom. Marine Mammal Science, 7(2):165-179.
(The authors discuss the timing of manatee illnesses which coincided with fish and double-crested cormorant (Phalacrocorax auritus ) mortality and morbidity probably due to bloom Gymnodinium breve.)

Packard, J. M., R. K. Frohlich, J. E. Reynolds, lII and J. R. Wilcox. (1989). Manatee response to interruption of a thermal effluent. Journal of Wildlife Management, 53(3): 692-700.
(The study examined the abundance and distribution of manatees in the Caloosahatchee River system in the winters prior to and during a temporary cessation of the heated effluent from the FP & E plant at Fort Myers. When heated effluends ceased, the manatees gathered in an area of deep water that cooled more slowly.)