Lincer, J. L.  (1975).  Ecological status of Dona and Robert's Bays and its relationship to Cow Pen Slough and other possible perturbations: (final report) to the Board of County Commissioners, Sarasota County.  204 pp.  Sarasota, FL: Mote Marine Laboratory.
http://www.mote.org/techreps/2-a/2-a.pdf
(Hydrographic models showed a marked difference between the wet and dry season.  Fluctuating salinity caused a seagrass die-off.)