Fig 5.

Number of oocysts retained in the biofilm at the end of the experiment as a function of biofilm surface roughness for all of the biofilms sampled. The data points represent biofilms collected from the following sites and dates at various experiment durations: (i) Cranberry Creek 8-day experiments in November 2008, February 2009, May 2009, and July 2009; (ii) Pocono Creek 3- and 8-day experiments in November 2008, February 2009, May 2009, and July 2009; (iii) Monocacy Creek 3-day experiment in April 2010, 8-day experiments in January 2007, July 2008, October 2008, January 2009, April 2009, and July 2009, and 25-day experiment in April 2010. Squares are winter biofilm cultures, diamonds are fall biofilm cultures, circles are spring biofilm cultures, and triangles are summer biofilm cultures.